MCset4
MCset 4 range
1 to 24 kV
Contents
Presentation
Field of application
Continuity of service and complete safety
MCset, a comprehensive solution
Quality assurance - environment
2
2
3
4
7
MCset 4 range
Description
Technical characteristics
Operating conditions
Protection of people
Specific applications
Choice of functional units
8
8
10
11
12
13
14
Cubicle description
AD incomer and feeder - RD direct incomer
CL - GL line-up bussectioning
TT busbar metering and earthing
DI fuse switch feeder
16
16
17
18
19
Protection, monitoring and control
Protection system
Sepam series 20, series 40, series 80, Sepam 100
Instrument transformers
20
20
21
23
Switchgear
Withdrawable parts
DI switch cubicle
26
26
30
Accessories
Withdrawable parts extraction
33
33
Installation
Implementation examples
Connections
35
35
36
Appendix
Cubicle equipment
Current transformers (Selection guide)
38
38
39
A few references
40
1
Field of application
Presentation
63280
MCset adapts to all electrical power
distribution requirements from 1 to 24 kV
MCset is an indoor, metal-clad switchgear unit intended for the MV section
of HV/MV substations and high power MV/MV substations.
MCset offers you:
MT20051
b pre-engineered and adaptable solutions tailored to your specific
requirements
b significantly reduced maintenance
b local support centres throughout the world.
MCset gives you the advantages of:
87158
MT20052
b continuity of service for your networks
b enhanced safety for your staff and operations
b optimized investment throughout the life of your installation
b the possibility of integrating your medium voltage switchboard
in a monitoring and control system.
Applications
Power plants
b Auxiliary substations
Industry
b Oil & gas
b Chemical industry
b Metallurgy
b Car industry
b Mining
b Cement plants
b…
Infrastructure
b Airports
b Ports
b Hospitals
b Water treatment
b…
2
Presentation
Continuity of service
and complete safety
MT20058EN
MCset is solidly based on extensive experience acquired throughout
the world and provides your networks with a high level of dependability
and safety.
MCset integrates a host of innovative solutions designed around proven
techniques: high performance switchgear, digital protection, monitoring
and control systems, enclosures capable of withstanding internal arcing.
From its very conception, MCset has taken account of three key user
requirements:
Reliability
b Type testing was carried out for each performance level in the MCset range.
b The design, manufacturing and testing of MCset was carried out
according to ISO 9001: 2000 quality standard.
b Three-dimensional computer modeling techniques were used to study
the electrical fields.
PE56386
Simplicity
b A user interface which is easily understood by everybody.
b Interlocks and padlocks preventing operator errors.
b Sepam-type protection units enabling on-site information retrieval
without any additional devices.
b Maintenance limited to simple, routine operating checks and cleaning
and greasing every 5 to 10 years.
b Easy installation due to identical civil engineering dimensions for
all cubicles and installation being possible against a wall.
Safety
b Operations are all performed from the front, including access to connections and busbars.
b Racking in and out is only possible with the door closed.
b The power-on indicator is situated on the front of the functional unit.
b The earthing switch has making capacity.
b One single ‘‘anti-reflex” handle is used for all MCset operations.
b Internal arc withstand developed for all functional units.
3
Presentation
MCset, a comprehensive solution
PE55170
MCset provides the most efficient means to control and protect a wide range of applications.
Due to the devices it comprises, MCset can be easily integrated into a monitoring and control system.
Sepam protection and control units
Sepam series 20, series 40 and series 80 digital protection relays take full
advantage of Merlin Gerin experience in electrical network protection.
Sepam series 20, series 40 and series 80 provides all the necessary
functions:
b effective protection of people and property
b accurate measurements and detailed diagnosis
b integral equipment control
b local or remote indication and operation.
Easy evolution
Addition of communication, digital I/O’s, analog output, or temperature
acquisition are possible due to its modular design.
PE55134
PowerMeter and Circuit Monitor metering units
The PowerLogic PowerMeter replaces a full complement of basic analog
meters. This cost effective, high performance meter provides a full
complement of accurate true-rms metering values.
The PowerLogic series 3000/4000 Circuit Monitor is designed for critical
power users and large energy consumers, to provide the information
needed to confidently enter the evolving world of deregulation.
It can be adapted to meter almost any time-of-use or real-time rate.
MT20062
Monitoring and control
MCset can be easily:
b integrated into an existing monitoring and control system:
communication of Sepam digital relay or PowerMeter/Circuit Monitor metering device through a standard protocol (Modbus)
b integrated into a SMS PowerLogic electrical installation monitoring system.
4
Presentation
MCset, a comprehensive solution
(cont.)
PE55137
MCset Transparent Ready™ option
DE57492EN
MCset switchboards integrate Web technologies so that you can find out
information about your electrical installation as easy as opening a Web page.
All you need is a standard Web browser and a PC connected to your local
area network.
TCP/IP over Ethernet
Hub
Front socket
EGX400
Simple choice
A simple choice between TRe-1 and TRe-2 service levels allows you to easily order your Transparent Ready™ MCset switchboard.
A customized level is also available.
Your Transparent Ready™ MCset switchboard comes equipped with a Web server including Web pages dedicated to power equipment data.
Sepam
Easy commissioning
Sepam
CM/PM
PE55140
PE55139
PE55138
MCset switchboard
Transparent Ready™ equipment is delivered ready to connect and
commission. A Quick Start guide, packaged with your switchboard,
provides three easy-to-follow steps.
Functionalities provided
TRe-1 TRe-2
Instantaneous readings
Displays automatically updated meter values
b
b
Circuit summary
Displays the RMS current 3-phase average (A),
the real power (kW), the power factor,
the circuit breaker status (if applicable), etc.
b
b
Load current summary
Displays the current RMS value for each phase (A),
for all circuits
b
b
Demand current summary
Displays the average demand current value for each phase (A),
for all circuits
b
b
Power summary
Displays the present demand (kW), the peak demand (kW)
and the times and dates of the records
b
b
Energy summary
Displays the energy (kWh) the reactive energy (kvarh),
and the times and dates of the records
b
b
Instantaneous readings, all devices
Displays automatically updated meter values
for all the communicating devices in the equipment
b
Basic historical data logging, energy and trending
Displays automatically updated meter values
for all the communicating devices in the equipment
b
Log displays
Displays data as time curves, or tables
b
Export of data tables
Allows data tables to be exported in a standard
Windows format
b
5
MCset, a comprehensive solution
Presentation
MT20064
(cont.)
Modernizing
Specifying
Schneider Electric Services, by your side
throughout the life of your installation
Specifying
We help you to define your solutions: selection guide,
technical assistance, advice…
Implementing
Operating
Implementing
We oversee the completion and commissioning of your installation:
design, cost optimization, guaranteed performances and dependability,
commissioning tests, etc.
Operating
We help run your daily operations in real time: maintenance contract,
technical assistance, supply of replacement parts, corrective and
preventive maintenance, operation and maintenance training, etc.
Modernizing
We can bring the performance of your installation up to date:
installation audit, switchgear diagnosis, adaptation and modification,
end of life recycling, etc.
MT20065EN
Examples of services provided
Warranty extension
A warranty extension is proposed if your installation is checked
by ourselves before being commissioned.
Circuit breaker-contactor diagnosis
Throughout the life of the equipment, it is possible to carry out routine
measurement of its characteristics in order to optimize maintenance.
This service may be part of a global installation maintenance contract.
End-of-life recycling
Schneider Electric Services has an operational subsidiary allowing you
to recycle your medium voltage switchgear.
6
PE56734
Presentation
Quality assurance - environment
Certified quality: ISO 9001
A major asset
In each of its units, Schneider Electric integrates a functional organization whose main role is to check quality and monitor compliance with standards.
This procedure is:
b uniform throughout all departments
b recognized by many customers and approved organizations.
But above all, it is its strict application that has allowed us to obtain the recognition of an independent organization: The French Quality Assurance Association (AFAQ).
The quality system for the design and manufacture of MCset is certified to be in conformity with the requirements of ISO 9001: 2000 quality assurance standard.
PE56731
Strict and systematic checks
During manufacture, each MCset functional unit is subject to systematic
routine testing with the aim of checking the quality and conformity
of the following features:
b sealing test
b filling pressure test
b measuring of opening and closing speeds
b measuring of operating torque
b dielectric test
b testing of safety systems and interlocks
b testing of low voltage components
b conformity with drawings and diagrams.
The results obtained are recorded and approved by the quality control
department on each device’s test certificate. This therefore guarantees
product traceability:
b checking SF6 switchgear
v sealing test
v filling pressure test.
DE56733
Protected environment
As part of the group’s environmental policy, Schneider Electric Services provides you with an operational subsidiary to recover medium voltage switchgear and thus eliminate any discharge to atmosphere.
In order to help you protect the environment and to relieve you of any concerns in terms of stock or dismantling, Schneider Electric Services offers to take back your equipment at the end of its life. MCset has been designed with environmental protection in mind:
b the materials used, insulators and conductors are identified, easily separable and recyclable.
b the SF6 can be recovered at the end of the equipment’s life and reused after treatment.
b production sites are certified to ISO 14001.
7
Description
PE56559
MCset 4 range
Busbars
LV control
cabinet
Sepam
Wiithdrawable
part
Current
transformers
Cables
connection
Voltage
transformers
compartment
8
MCset 4 range
Description (cont.)
Make up of a MCset 4 switchboard
MCset 4 switchboards are made up of several interconnected functional units. Power connections are made between functional units within a switchboard via a single busbar.
The electrical continuity of all metal frames is provided by the connection of each functional unit’s earthing busbar to the switchboard’s main earthing circuit. Low voltage wiring trays are provided in the switchboard above the LV control cabinets.
LV cables can enter the switchboard through the top or bottom of each functional unit.
Description of a functional unit
A functional unit comprises all equipment in the main and auxiliary circuits
which together provide a protection function. Each functional unit combines
all the components which are required to fulfil this function:
b the cubicle
b the protection, monitoring and control system
b the withdrawable part.
LSC2B
(Loss of Service Continuity IEC 62271-200):
this category defines the possibility
of keeping other compartments energised
(in service) when opening a main circuit
compartment.
The cubicle
The cubicle is of LSC2B (Loss of Service Continuity Category) type as defined by
IEC standard 62271-200, in other words the medium voltage parts are compartmented
using metal partitions (PM class) which are connected to earth and which separate:
b the busbars
b the withdrawable part (circuit breaker, disconnector truck or earthing truck)
b MV connections, earthing switch, current sensors and voltage transformers
as required.
MCset 4 guarantees a high level of protection of people; when a compartment containing a main circuit is open, the other compartments and/or functional units may remain energised.
The low voltage auxiliaries and monitoring unit are in a control cabinet separated from the medium voltage section.
Six basic cubicle layouts are offered:
b Incomer or feeder
AD
b Direct incomer
RD
b Line up bussection
CL - GL
b Busbar metering and earthing
TT
b Fuse switch feeder
DI
AD and CL cubicles have withdrawable circuit breaker.
The protection, monitoring and control system
This includes:
b Sepam, protection, monitoring and control unit
b current sensors, which may be of 3 types:
v conventional current transformers
v low voltage toroid type current transformers
v LPCT
b zero sequence core balance current transformers (CSH type).
The withdrawable part
This includes:
b the circuit breaker, the earthing truck with its closing and opening mechanism,
or the disconnector truck
b the lever-type propulsion mechanism for racking in-out
b interlocks to fix the withdrawable part on the fixed part either in service position or
disconnected.
9
MCset 4 range
Technical characteristics
PE56732
Technical data
Rated voltage
(kV)
24
Power frequency withstand voltage
50 Hz - 1 min
(r ms kV)
50
Lightning impulse withstand voltage
1.2/50 µs
(kV peak)
125
Rated insulation level
Nominal current and maximum short time withstand current (1)
Functional unit with circuit breaker
Short time withstand current
Ith. max
(kA/3 s)
16
25
Rated current
(kA/1 s)
31.5
In max busbars
(A)
2500 (2)
In CB
(A)
630
1250
2500
Functional unit with fuse switch (DI cubicle)
Short time withstand current
Ith. max
(kA)
31.5 (3)
Rated current
In max y
(A)
200
(kA/1 s)
25
(kA/0.15 s)
31.5
Internal arc withstand
Protection degree
IP3X
IP4X
IPX1 (2)
IAC (internal arc classification):
The metal enclosed switchgear may
have different types of accessibility
on the various sides of its enclosure.
For identify purpose of different sides of
the enclosure, the following code shall be
used (according to IEC 62271-200
standard).
A: restricted access to authorized personnel
only
F: access to the front side
L: access to the lateral side
R: access to the rear side.
10
(1) For functional units equipped with circuit breakers,
the breaking capacity is equal to the short time withstand current.
In all cases, the device peak making capacity is equal to 2.5 times
the short time withstand current.
(2) For higher performances, consult us
(3) Limited by fuses.
MT20072
MCset 4 range
Operating conditions
Operating conditions
Normal operating conditions, according to IEC 62271-1 for indoor switchgear
b Ambient air temperature:
v less than or equal to 40°C
v less than or equal to 35°C on average over 24 hours
v greater than or equal to – 5°C.
b Altitude:
v less than or equal to 1000 m
v above 1000 m, a derating coefficient is applied (please consult us).
b Atmosphere:
v no dust, smoke or corrosive or inflammable gas and vapor, or salt (clean industrial air).
b Humidity:
v average relative humidity over a 24 hour period y 95%
v average relative humidity over a 1 month period y 90%
v average vapor pressure over a 24 hour period y 2.2 kPa
v average vapor pressure over a 1 month period y 1.8 kPa.
Specific operating conditions (please consult us)
MCset 4 has been developed to meet the following specific conditions:
b temperature (possible derating)
b corrosive atmospheres, vibrations, (possible adaptation).
Storage conditions
In order to retain all of the functional unit’s qualities when stored for prolonged
periods, we recommend that the equipment is stored in its original packaging,
in dry conditions sheltered from the sun and rain at a temperature of between – 25°C
and + 55°C.
Standards
The MCset 4 range meets the following international standards:
b IEC 62271-1: clauses common to high voltage switchgear
b IEC 62271-100: high voltage alternating current circuit breakers
b IEC 62271-102: alternating current disconnectors and earthing switches
b IEC 62271-103: switches for rated voltages above 1 and less than 52 kV
b IEC 62271-200: metal-enclosed switchgear for alternating current
at rated voltages of between 1 and 52 kV
b IEC 60282-2: high voltage fuses
b IEC 60255: measurement relay and protection unit (Sepam)
b IEC 60044-1: current transformers
b IEC 60044-2: voltage transformers.
11
MCset 4 range
Protection of people
MT20076
MCset 4 internal arc
Basic version (gas exhaust)
MCset 4 is designed to eliminate the effects of internal arcing in total safety, due to:
b metal flaps positioned above the enclosure, which in the case of internal fault, limit overpressure in the compartments.
b nonflammable materials used for the cubicle.
MCset switchboard with tunnel
Internal arc version
MCset 4 is designed to withstand and protect operators in the case of failure due to an internal arc. MCset 4 has been successfully tested using type tests.
Protection against internal arcing is available on 25 kA and 31.5 kA ratings.
MCset 4 proposes several options to install an internal arc switchboard.
b 3-sided internal arc protection For an MCset 4 switchboard fitted against a wall, access to the rear of the cubicle is impossible. Internal arc protection on 3 sides is sufficient. b 4-sided internal arc protection
In the case of an MCset 4 switchboard installed in the middle of a room, internal arc protection on 4 sides is necessary in order to protect an operator who goes behind the cubicle. b Installation in a room with limited ceiling height:
v height exceeding 2.8 m, potential for installing a tunnel above the switchboard to prevent reflection of hot gases on the ceiling.
Ceiling height
2.8 m < h < 4 m
h>4m
Tunnel
Mandatory
Not mandatory
b Internal arcing detector
MCset 4 has 2 systems that can detect internal arcing and switch off the power
supply so as to limit the fault duration.
v electromechanical detector
This system employs a positive security electromechanical tripping circuit,
positioned on the cubicle’s flap valves.
This set transmits the information to the Sepam to give the opening order to the
circuit breaker located upstream of the fault.
v optic detector (VAMP system)
Internal arcing is detected by optical sensors which will measure the light caused by
the initiation of arcing. Based on this information, an electronic module, after
processing the information, will give the opening order to the circuit breaker located
upstream of the fault.
PE56730
Dependable mechanical control devices
All operations are carried out from the front face, including access to connections and busbars.
The user is guided through icon-diagrams on each front panel making it easy to understand the operating sequence and device status.
Interlocks and padlocks prevent operator errors.
Several additional levels of security also protect operators:
b racking in and out is only possible with the door closed.
b the very extensive set of mechanical and electrical interlocks do not allow operator error. These can be added to by key locks or padlocks according to specific operating procedures. Each selector can be fitted with one to three padlocks.
b all operations are carried out from the front face including access to connections and busbars. b the voltage present indicator is located on the front face of the functional unit, in the immediate vicinity of the earthing switch control.
b disarming of circuit-breaker when racking out. This function enables the circuit breaker control springs to be disarmed during the extraction operation.
b Locking of withdrawable part/cable compartment. This function disables the possibility of racking the withdrawable part in if the front panel (cable compartment) is not installed.
b Locking of the MV door open if the LV plug of the circuit breaker is not plug-in.
12
PE56575
MCset 4 range
Specific applications
Seismic areas
MCset 4 meets international seismic specifications.
Test procedures follow IEC 60068-3-3 standard.
MCset 4 is qualified following the standard:
b ENDESA.
DEP Shell
MCset 4 switchboards are certified by Shell in compliance with DEP 33.67.51.31
Gen (November 2006) for MV equipments.
13
Choice of functional units
MCset 4 range
The MCset 4 range comprises 10 functional applications.
The table below can be used to link requirements to functional units and gives basic information on the general composition of each unit.
Selection guide
You want to supply power to a transformer.
The chosen solution is a transformer feeder/breaker.
The corresponding functional unit will therefore be a TF-B, comprising a AD cubicle equipped with a withdrawable circuit breaker, and transformer application Sepam.
Incomer
Feeder
Transformer
Generator
Line
Transformer
Transformer
LI-B
TI-B
GI-B
LF-B
TF-B
TF-S
Cubicle
AD4
AD4
AD4
AD4
AD4
DI4
Device
Circuit breaker
Circuit breaker
Circuit breaker
Circuit breaker
Circuit breaker
Fuse-switch
Sepam protection relay
series 20
series 40
series 80
Substation
S20
S40, S41, S42
S80, S81, S82
Transformer
T20
T40, T42
T81, T82, T87
Generator
Substation
S20
S40, S41, S42
S80, S81, S82
Transformer
T20
T40, T42
T81, T82, T87
Transformer
T20
T40, T42
Single line diagrams
MT20081
Sepam
The direct incomer is produced using a specific cubicle: RD4.
14
G40
G82, G88, G87
MT20082
Line
Functional unit
MT20080
Function
Choice of functional units (cont.)
MCset 4 range
Metering and
busbar earthing
Switchboard
Substation
CB-B
BS-B
SS-B
BB-V
Cubicle
AD4
CL4 and GL4
AD4
TT4
Device
Circuit breaker
Circuit breaker
Circuit breaker
Sepam protection relay
series 20
series 40
series 80
Capacitor
Busbar
B21, B22
C86
B83
Substation
S20
S40, S41, S42
S80, S81, S82
Single line diagrams
MT20078
Capacitor
Functional unit
MT20081
Bussectioning
MT20084
Feeder
MT20081
Function
15
AD - Incomer and feeder
RD - Direct incomer
Cubicle description
1
7
DE57766
RD4
DE57765
DE57782
DE55085
AD4
1
7
2
H
H
W
W
4
5
6
3
3
D
D
RD4
DE57760
DE57761
AD4
4
5
Sepam
Sepam
MV components
1 busbars for cubicle interconnection
2 withdrawable part (SF1-2 circuit breaker, disconnector truck or earthing truck)
3 MV connections by cables accessible from the front face
4 earthing switch
5 current sensors
6 voltage transformers (optionally equipped with withdrawable fuses)
LV control cabinet
7 low voltage auxiliaries and protection, monitoring and control unit
are in one control cabinet, separated from the medium voltage part.
Characteristics
AD4
RD4
Rated voltage
kV
24
24
Rated insulation level
kV r ms 50 Hz - 1 min
50
50
kV impulse 1.2/50 µs
630
125
b
125
b
1250
b
b
2500
b
b
Rated current
A
Breaking capacity
kA
31.5
–
Short time withstand current
kA r ms 1 s
31.5
31.5
kA r ms 3 s
16 or 25
16 or 25
Width (W)
900
900
Height (H)
2325
2325
Depth (D) (1)
1750
1750
1100
930
Dimensions
Approximative weight (2)
mm
kg
(1) Overall + 175 mm for 4-sided internal arcing protected switchboards, or 2 sets of CT’s.
(2) Fully equipped cubicle.
16
CL - GL
Line-up bussectioning
Cubicle description
The bussectioning functional unit comprises 2 cubicles
mounted side by side (one cubicle equipped with
a circuit breaker, the other with a busbar return).
DE55090
O
I
V/H
W/
W
clear
1
5
tri
alar
DE56765
GL4
DE57767
CL4
1
5
rese
2
H
L
L
3
L
M
4
W
W
D
D
DE57762
CL4 and GL4
Sepam
MV components
1 busbars to connect the bussectioning functional unit with other switchboard
cubicles
2 withdrawable part (circuit breaker SF1-2, disconnector truck or earthing truck)
3 current sensors
4 voltage transformers (optionally equipped with withdrawable fuses)
LV control cabinet
5 low voltage auxiliaries and protection, monitoring and control unit
are in one control cabinet, separated from the medium voltage part.
Characteristics
CL4 - GL4
Rated voltage
kV
24
Rated insulation level
kV r ms 50 Hz - 1 min
50
kV impulse 1.2/50 µs
630
125
b
1250
b
Rated current
A
2500
b
Breaking capacity
kA
31.5
Short time withstand current
kA r ms 1 s
31.5
kA r ms 3 s
Dimensions
mm
16 or 25
Width (W)
900 (x 2)
Height (H)
2325
Depth (D) (1) (3)
Approximative weight (2)
kg
1750
1600 (CL4 + GL4)
(1) Overall + 175 mm for 4-sided internal arcing protected switchboards.
(2) Fully equipped cubicle.
(3) Overall + 500 mm for upstream CTs.
17
TT
Busbar metering and earthing
Cubicle description
DE55095
DE57768
TT4
1
4
H
2
3
W
D
DE57763
TT4
MV components
1 busbars to connect the TT functional unit with other switchboard cubicles
2 earthing switch
3 voltage transformers (optionally equipped with withdrawable fuses)
LV control cabinet
4 low voltage auxiliaries and protection, monitoring and control unit
are in one control cabinet, separated from the medium voltage part.
Characteristics
TT4
Rated voltage
kV
24
Rated insulation level
kV r ms 50 Hz - 1 min
50
kV impulse 1.2/50 µs
630
125
b
1250
b
2500
b
Rated current
Short time withstand current
A
kA r ms 1 s
31.5
kA r ms 3 s
Dimensions
Weight
mm
kg
16 or 25
Width (W)
900
Height (H)
2325
Depth (D) (1)
1750
560
(1) Overall + 175 mm for 4-sided internal arcing protected switchboards.
18
DI
Fuse switch feeder
Cubicle description
DE57771
DE57770
DI4
4
1
2
H
3
D
W
DE57764
DI4
MV components
1 busbars to connect the DI functional unit with other switchboard cubicles
2 switch - earthing switch
3 MV fuses
LV control cabinet
4 low voltage auxiliaries and protection, monitoring and control unit
are in one control cabinet, separated from the medium voltage part.
Characteristics
DI4
Rated voltage
kV
24
Rated insulation level kV r ms 50 Hz - 1 min
50
kV impulse 1.2/50 µs
125
b
Rated current
A
200
Breaking capacity (2)
kA
31.5
Short time withstand current (2)
kA r ms
31.5
Dimensions
mm
Weight
kg
Width (W)
900
Height (H)
2325
Depth (D) (1)
1750
640
(1) Overall + 175 mm for 4-sided internal arcing protected switchboards.
(2) Limited by fuses.
DI cubicles including a fuse switch are used to supply power and protect low power transformers.
E.g.: auxiliary service transformers in primary substations.
All operations are carried out from the front face, including access to connections and busbars. All functional interlocks meet recommendations in IEC 62271-200:
b the switch is only possible to close if the earthing switch is open and the connection
access panel is in place
b closing of the earthing switch is only possible if the switch is open
b opening of the access panel to medium voltage connections and fuses is only
possible of the earthing switches upstream and downstream of the fuses are closed
b the switch is locked in the open position when the access panel is taken off.
The voltage presence indicator is situated on the front face of the functional unit,
integrated in the switch’s control panel.
19
Protection system
Protection, monitoring
and control
DE57772
Each MCset functional unit can be equipped
with a comprehensive protection, monitoring
and control system comprising:
b instrument transformers to measure the
necessary electrical values (phase current,
residual current, voltages, etc.)
b protection relays, providing functions
adapted to the part of the network to be
protected
b metering equipment, to inform operators
b low voltage relaying, i.e. to provide control
of the breaking device and
of the withdrawable part
b various auxiliaries: secondary circuit test
units, etc.
Sepam range
Protection relays
metering equipment
Switchgear
(circuit breaker and contactor)
Instrument transformers
PE55170
Sepam: protection, monitoring and control units
Sepam, is a range of digital monitoring protection and control units.
Sepam is at the centre of the protection, monitoring and control system for MCset functional units: all the necessary protection, metering, control, monitoring and signalling functions are carried out by Sepam.
Like the MCset range, the Sepam range is a range of units defined to provide an optimal solution for each application, and includes (eg):
b Sepam S, substation incomer and feeder
b Sepam B, bussectioning
b Sepam T, transformer feeder
b Sepam G, generator feeder
b Sepam C, capacitor feeder.
Sepam advantages
Protection chain
The Sepam protection units combined with innovative
current sensors provide a comprehensive measurement,
protection and energy management chain *.
A high performance, economical solution
The modular Sepam offer provides a cost effective
solution tailored to every requirement.
Easy to order and install
All the components in the protection chain are
referenced and can be delivered very quickly.
The power of a multi-functional digital unit
Sepam is more than a simple protection relay, it is truly multi-functional unit notably offering:
b circuit breaker diagnosis functions (switching counter
and time, rearming time, cumulated broken A2)
b direct circuit breaker control whatever type of release unit
b remote equipment operation using the modbus communication option.
(*) Please check in the Sepam catalogue the sensor to use with
each Sepam version.
20
Reliability
b Over 20 years of experience in multi-function digital protection relays
b Over 150,000 Sepam units in service in more than 90 countries.
Quality
b Quality design based on dependability studies and strict definition of
environmental constraints: temperature, pollution, EMC, dielectric strength…
b Quality manufacturing based on procurement agreements with suppliers
and inspection throughout all manufacturing phases.
Simplicity of use
b Ergonomic and intuitive user machine interface (UMI).
b User friendly and powerful PC setting software
b Predefined functions implemented by simple parameter setting.
Easy installation
b The same, easy-to-install remote modules for all Sepam units.
Intuitive use
b Clear graphic LCD display of all data required for local operation
and installation diagnosis
b Working language may be customized to be understood by all users.
Protection, monitoring
and control
Sepam series 20, series 40, series 80,
Sepam 100
The Sepam range of protection relays is designed for the operation of machines and electrical distribution networks of industrial installations and utility substations at all levels of voltage.
It includes 3 families: b Sepam series 20, for usual applications.
b Sepam series 40,
for demanding applications.
b Sepam series 80, for custom applications.
To cover all needs, from the simplest to the most complete.
Sepam protection relay
A range of solutions adapted to your application
b Substation protection (incomers, feeders, busbars)
b Transformer protection
b Motor and generator protection.
A comprehensive solution, integrating all of the necessary functions
for your application
b Effective protection of people and property
b Accurate measurements and detailed diagnosis
b Integral equipment control
b Local or remote indication and operation.
PE56384
Flexibility and upgrading capability
To adapt to as many situations as possible, and allow for future installation upgrading,
optional modules may be added to Sepam at any time for new functions.
Sepam series 80 modular architecture
1- Base unit, with integrated or remote advanced User Machine Interface.
2- Parameter and protection settings saved on removable memory cartridge.
3- 42 logic inputs and 23 outputs relays with 3 optional modules
providing 14 inputs and 6 outputs.
4- 2 independent Modbus communication ports.
b direct connection to 2-wire RS 485, 4-wire RS 485 and fiber optic networks;
b connection to Ethernet TCP/IP network via PowerLogic
System webserver (Transparent Ready™). 5- Processing of data from 16 temperature sensors.
6- 1 low level analog output, 0-10 mA, 4-20 mA or 0-20 mA.
7- Synchro-check module
PE60118
PE60117
PE60116
8- Software tools:
b Sepam parameter and protection setting and control logic customization;
b local or remote installation operation;
b retrieval and display of disturbance recording data.
Sepam 100 units
Sepam 100 units round off the Sepam range and can be installed either separately
or combined with either Sepam series 20, 40 and series 80.
Sepam 100 has several variants:
b Sepam 100 MI, local breaking device control and signalling modules
(many different line diagram types are available):
b Sepam 100 LD, high impedance differential protection
b Sepam 100 LA, self-powering protection (back-up protection without auxiliary
power supply).
Sepam 100 MI
Sepam 100 LD
Sepam 100 LA
21
Protection, monitoring
and control
Sepam
Sepam series 20, series 40, series 80
Selection guide
Protections *
Applications
Basic
Substation Transformer Generator Busbar Capacitor
Specific
DE57493
Current
protection
DE57494
Sepam series 20
b 10 logic inputs
b 8 relay outputs
b 8 temperature probe inputs
b 1 Modbus communication port
Voltage and
frequency
protection
S20
T20
B21
B22
Loss of mains
(ROCOF)
DE57495
Sepam series 40
b 10 logic inputs
b 8 relay outputs
b 16 temperature probe inputs
b 1 Modbus communication port
b logic equations editor
S40
Current,
voltage and
frequency
protection
Directional
earth fault
S41
Directional
earth fault
and phase
overcurrent
S42
T40
G40
T42
DE57496
Sepam series 80
b 42 logic inputs
b 23 relay outputs
b 16 temperature probe inputs
b 2 Modbus communication port
b logic equations editor
S80
Current,
voltage and
frequency
protection
Directional
earth fault
S81
T81
Directional
earth fault
and phase
overcurrent
S82
T82
G82
T87
G88
Transformer or
machine
transformerdifferential
DE57498
Voltage and
frequency
protection for
two sets of
busbars
DE57499
Machine
differential
Capacitor
bank
unbalance
(*) For other specific protection, please consult us.
22
G87
B83
C86
Protection, monitoring
and control
Instrument transformers
Conventional current transformers
Conventional current transformers are used to provide power to metering, measuring
or control devices. They measure the value of primary current from 10 A to 2500 A. They are in conformity with standard IEC 60044-2.
Schneider Electric has drawn up a list of current transformers which are appropriate for use with digital protection devices in order to make it easier to determine accuracy characteristics.
They are installed in the rear part of the functional unit. The energized part is entirely encapsulated in an epoxy resin, which provides both electrical insulation and excellent mechanical strength.
This list is available in the selection guide on page 39.
PE56381
For AD4-RD4-GL4 cubicles
Transformer ARJP2/N2J
b Double primary current, double secondary current for measurement or protection
b Frequency 50-60 Hz
ARJP2
I1n / I2n (A)
Ith (kA)
t (s)
Measuring* cl 0.5
protection* 5P10
50-100
40
1
75-150
40
1
100-200
31.5-40
1
5-10 VA
2.5-5 VA 2.5-5 VA 2.5-5 VA
150-300 200-400 250-500 600
40
40
40
50
1
1
1
1
10-20 VA 7.5-15 VA 10-20 VA 20 VA
2.5-5 VA 5-10 VA 5-10 VA 7.5 VA
750
50
1
20 VA
7.5 VA
PE56382
For AD4-RD4-GL4-CL4 cubicles
Transformer ARJP3/N2J
b Single primary current, double secondary current for measurement or protection
b Frequency 50-60 Hz
I1n / I2n (A)
Ith (kA)
t (s)
Measuring*
protection*
ARJP3
cl 0.5
5P20
1000 / 5
50
1
30 VA
10 VA
1250 / 5
50
1
30 VA
10 VA
For AD4-RD4-GL4-CL4 cubicles
PE56383
Transformer ARJA1/N2J
b Single primary current, double secondary current for measurement or protection
b Frequency 50-60 Hz
I1n / I2n (A)
Ith (kA)
t (s)
Measuring*
protection*
cl 0.5
5P20
1500 / 5
50
1
30 VA
15 VA
2000 / 5
50
1
30 VA
15 VA
2500 / 5
50
1
30 VA
15 VA
ARJA1
(*) The secondary current for measuring and protection can be of 1 A or 5 A.
23
Protection, monitoring
and control
Instrument transformers (cont.)
E72965
Low voltage toroid type current transformers
For cubicle AD4-RD4 with one single-pole cable up to 630 A
Transformer ARC2
b Single primary current, single secondary current for protection
b Frequency 50-60 Hz
I1n / I2n (A)
Ith (kA)
t (s)
Protection 5P20
75
50
1
2.5 VA
100
50
1
2.5 VA
150
50
1
5 VA
200
50
1
5 VA
250
50
1
5 VA
300
50
1
5 VA
400
50
1
5 VA
600
50
1
7.5 VA
b Single primary current, double secondary current for measurement or protection
b Frequency 50-60 Hz
I1n / I2n (A)
Ith (kA)
t (s)
Measuring
protection 5P20
200
50
1
5 VA cl. 1
2.5 VA
250
50
1
10 VA cl. 0.5
5 VA
300
50
1
10 VA cl. 0.5
5 VA
400
50
1
15 VA cl. 0.5
5 VA
600
50
1
15 VA cl. 0.5
5 VA
For cubicle AD4-RD4 with two single-pole cables up to 630 A
Transformer ARC3
b Single primary current, double secondary current for measurement or protection
b Frequency 50-60 Hz
I1n / I2n (A)
Ith (kA)
t (s)
Measuring cl 0.5
protection 5P20
750
50
1
20 VA
7.5 VA
1000
50
1
30 VA
10 VA
1250
50
1
30 VA
10 VA
PE56227
LPCT low power current transducer
LPCT’s are specific current sensors with a direct voltage output of the “Low Power Current Transducer” type, in conformity with standard IEC 60044-8.
LPCT’s provide metering and protection functions.
They are defined by:
b the rated primary current
b the extended primary current
b the accuracy limit primary current or the accuracy limit factor.
These have a linear response over a large current range and do not start to saturate until beyond the currents to be broken.
For cubicle AD4-RD4 with one single-pole cable up to 630 A
LPCT
Transformer TLP160
b Single primary current, double secondary current for measurement or protection
b Frequency 50-60 Hz
I1n (A)
Ith (kA)
t (s)
Accuracy class
100 to 2500
40
1
0.5 - 5P
For cubicle AD4-RD4 with two single-pole cables up to 630 A
Transformer TLP190
b Single primary current, double secondary current for measurement or protection
b Frequency 50-60 Hz
I1n (A)
Ith (kA)
t (s)
Accuracy class
24
100 to 2500
40
1
0.5 - 5P
Protection, monitoring
and control
Instrument transformers (cont.)
E74401
Voltage transformers
VRQ1
These supply power to:
b measuring, metering and monitoring devices
b relays or protective devices
b auxiliary LV sources for various types of switchgear; all these devices are protected
and insulated from the MV section.
They are installed at the bottom of the functional unit. In the withdrawable fuse version,
the voltage transformers are attached to a side wall. The energized part is entirely
encapsulated in an epoxy resin, which provides both electrical insulation and
excellent mechanical strength.
They include the following models:
b with one insulated MV terminal, for connection between neutral and phase conductors in three-phase systems with withdrawable MV fuses.
b with two insulated MV terminals, for connection between phase conductors.
For AD4-RD4-CL4-GL4-TT4 cubicles
Transformer VRQ1N/S2
b Phase/earth
b Frequency 50-60 Hz
Primary voltage (kV)
1st secondary voltage (V)
2nd secondary voltage (V)
1st secondary accuracy
class (VA)
2nd secondary accuracy
class (VA)
20/3
100/3
100/3
50 VA cl.0.5
100 VA cl.1
50 VA cl.3P
22/3
110/3
110/3
E28678
Zero sequence core balance current transformers
(CSH type)
CSH 120 and CSH 200 core balance CT’s, provide more sensitive protection by direct measurement of earth fault currents.
Specifically designed for the Sepam range, they can be directly connected to the Sepam “residual current” input.
They are only different in terms of their diameter:
b CSH 120 - 120 mm internal diameter
b CSH 200 - 200 mm internal diameter.
CSH toroid CT
25
Withdrawable parts
PE55046
Switchgear
Withdrawable
part
Extraction
table
26
Withdrawable parts (cont.)
These include:
b the circuit breaker or contactor, the disconnector
truck or the earthing truck
b the lever-type propulsion mechanism
for racking in-out
b interlocks to fix the withdrawable parts
onto the fixed part.
MCset circuit breakers SF1-2, switches
use sulphur hexafluoride (SF6) for insulation
and breaking.
The live parts are housed in an insulating enclosure
in the sealed pressure system in compliance
with IEC 62271-100.
Withdrawable parts
Earthing truck
The earthing truck is a safety feature which allows
the cubicle busbar to be earthed. It is installed
instead of the circuit breaker and has the same
interlock possibilities.
Disconnector truck
The disconnector truck enables the upper and lower part of the cubicle to be short-circuited. It is installed instead of the circuit breaker and has the same interlock possibilities.
DE57774
A circuit breaker is a safety device enabling
switching and protection of electrical distribution
networks. Installed in the MCset cubicle, it protects
all components situated downstream during
a short-circuit.
DE57775
The devices used to equip the MCset range of
functional units have outstanding features:
b long service life
b maintenance-free live parts
b high electrical endurance
b very low overvoltages
b operating safety
b insensitivity to the environment
b breaking capacity and dielectric strength
maintained at atmospheric pressure
b low filling pressure.
Circuit breaker
DE57773
Switchgear
SF circuit breaker
PE55052
Presentation
SF range circuit breakers equip cubicles AD4 and CL4 for rated voltage values
of 24 kV.
They work on the basis of the “puffer” type principle in SF6, which is used as
a breaking and insulating medium.
Each of the 3 poles have an independent insulating enclosure which forms a filled
pressure system in compliance with IEC standard 62271-100.
Each pole forms a gas-tight unit filled with low pressure SF6 at low relative pressure of
0.05 to 0.35 MPa (0.5 to 3.5 bars) according to the performance level required.No filling is required during the equipment’s life.
According to the performance levels, it is possible to optionally equip SF6 circuit breakers with a pressure switch to act on an alarm in the case of a pressure drop.
SF6 range circuit breakers are actuated by a GMH type spring mechanism.
27
Withdrawable parts (cont.)
Switchgear
DE55118
Principle of the puffer breaking technique.
The main contacts and arcing contacts are initially closed (Fig. 1).
Pre-compression (Fig. 2)
When the contacts begin to open, the piston slightly compresses the SF6 gas in the pressure chamber.
Fig. 1
Fig. 2
Arcing period (Fig. 3)
The arc appears between the arcing contacts. The piston continues its downward movement. A small quantity of gas, directed by the insulating nozzle is injected across the arc. For the breaking of low currents, the arc is cooled by forced convection. However, for high currents, thermal expansion causes the hot gases to move towards the cooler parts of the pole unit.
The distance between the two arcing contacts becomes sufficient for the current to be
broken when it reaches the zero point, due to the dielectric properties of the SF6.
Sweeping overstroke (Fig. 4)
The moving parts finish their movement and the injection of cold gas continues until the contacts are completely open.
Fig. 3
Fig. 4
Characteristics of SF circuit breakers in MCset cubicles
Electrical characteristics
Rated voltage
Insulation level
Rated nominal current (Ia)
Breaking capacity Isc
Making capacity
Short time withstand current
Capacitor breaking capacity
Rated operating sequence
Approximate operating time
for supply of releases at Un
Mechanical endurance
28
SF1/MCset 4
kV, 50/60 Hz
kV, r ms 50 Hz - 1 min
kV, impulse 1.2/50 µs
A
630
1250
2500
kA, r ms
kA, peak
kA, r ms 3 s
A
630
1250
2500
O-3 min-CO-3 min-CO
O-0.3 s-CO-3 min-CO
O-0.3 s-CO-15 s-CO
ms
Opening
Breaking
Closing
Number of switching operations
SF2/MCset 4
24
50
125
b
24
50
125
b
b
24
50
125
16
40
16
440
25
63
25
440
875
25
63
25
b
b
b
b
b
b
b
50
65
70
10 000
1750
b
b
b
50
65
70
10 000
24
50
125
b
b
b
31.5
80
31.5
440
875
1750
b
b
b
Withdrawable parts (cont.)
Switchgear
028368
GMH operating mechanism
SF range circuit breakers are actuated by a GMH operating mechanism that ensures a
switching device closing and opening rate that is independent of the operator.
This operating mechanism, always motorised, enables remote operation and fast
reclosing cycles.
The GMH operating mechanism includes:
b a spring system that stores the energy needed to close and open the breaker
b a manual spring charging system
b an electrical motor spring charging device that automatically recharges
the mechanism as soon as the contacts close (recharging time < 15 s)
b two mechanical push buttons for opening and closing, accessible with
the cubicle door open (circuit breaker in test position)
b an electrical closing system comprising a closing release for remote control
and an anti-pumping relay
b an electrical opening system comprising one or more opening releases
of the following type:
v shunt
v undervoltage.
b an operation counter
b an optional “operating mechanism charged” indication contact
b an end of charging contact
b a black-white mechanical “open-closed” position indicator
b a multi-pin connector to isolate auxiliary circuits in the “racked out” position.
Auxiliary contacts
The GMH operating mechanism is equipped with a block of 14 auxiliary contacts
including:
b 1 changeover contact for the electrical operating mechanism
b 1 changeover contact for indication
b 1 contact for the shunt release.
Contact characteristics
Rated current
Breaking capacity
10 A
AC
220 V (cos ϕ ≥ 0.3)
10 A
DC
110 or 220 V (L/R ≤ 0.01 s)
1.5 A
GMH operating mechanism characteristics
Type of auxiliaries
Supply voltage
Spring charging
motor (M)
AC (V)
DC (V)
AC (VA)
DC (W)
Possible combinations of
auxiliaries and quantities
Closing release
(YF)
Opening release
Shunt (YO1-YO2)
Single
Double
50 Hz
50 - 100 - 140 - 200 - 250 - 380
60 Hz
60 - 110 - 127 - 220 - 250
24 - 33 - 48 - 60 - 110 - 136 - 220 - 260
700
120
120
570
70
70
b
b
b
Consumption
240
140
Undervoltage
(YM)
400/100 (1)
100/10 (1)
b
Available contact
NC
NO
Ch
5
4
1
or
b
b
b
5
4
1
or
or
or
or
b
b
b
b
b
b
b
b
b
5
5
5
5
3
3
3
5
1
1
1
1
b
b
b
b
Wiring diagram (principle)
J
M
YF
M1-M2
QF
KN
SE
Y01-Y02
YM
M3
SP
SQ
Sm1
Sm2
Sm3
Sn
Circuit breaker
Spring charging motor
Closing release
End of charging contact
Auxiliary circuit breaker contacts
Anti-pumping relay
Latched release contact
Shunt opening releases
Undervoltage opening release
Operating mechanism charged contact
Pressure switch contact
Device ready to operate contact
Closing push button (external)
Opening push button for shunt releases (external)
Opening push button for undervoltage releases
(external)
Closing disabling contact (external)
DE57776
(1) Pick-up/latched consumption.
Sm1
Sm2
Sm3
Sn
M
QF
J
M1
SP
M2 KN
SE
YF
M3
SQ
Y01
YM
Y02
29
DI switch cubicle
Switchgear
E74222
SM6 switch
The three rotating contacts are placed in an enclosure filled with gas to a relative pressure of 0.04 MPa (0.4 bars).
The system offers maximum operating reliability:
Gas tightness
The SF6 filled enclosure is of the “sealed pressure system type”. Sealing tightness is
always checked in the factory.
Safety
b the switch may be in one of three positions: “closed”, “open” or “earthed”,
giving a natural interlocking system that prevents operator error. Moving contact
rotation is driven by a fast acting mechanism that is independent of the operator.
b the device combines the breaking and disconnecting functions.
b the SF6-enclosed earthing switch has a short-circuit making capacity
in compliance with standards.
DE57486
Breaking principle
The outstanding qualities of SF6 gas are used to extinguish the electrical arc.
To increase cooling of the arc, a relative movement is created between the arc
and the gas. The arc strikes when the fixed and moving contacts separate.
The combination of the current and a magnetic field created by a permanent magnet
causes the arc to rotate around the fixed contact, extending and cooling it until
it is extinguished at current zero point. The distance between the fixed and moving
contacts is then sufficient to withstand the recovery voltage.
This system is both simple and dependable, and it provides improved electrical
endurance due to very low wear of contacts.
2
6
3
4
5
DE55122
1
Contacts closed
30
Contacts open
Contacts earthed
1
2
3
4
5
6
Enclosure
Cover
Operating shaft
Fixed contact
Moving contact
Seal
041497R
Switchgear
DI switch cubicle (cont.)
Operating mechanism and auxiliaries
041496R
CI2 double function operating mechanism
b switch function:
v independent closing in two steps:
– operating mechanism recharged by a hand lever or motor
– stored energy released by a push button or trip unit.
v independent opening by push button (O) or trip unit.
b earthing switch function:
v independent closing by a hand lever.
Operating energy is provided by the compression of a spring which causes the contacts to close or open after the neutral point is passed.
b auxiliary contacts:
v switch (2 O + 2 C)
v switch (2 O + 3 C) and earthing switch (1 O + 1 C)
v switch (1 C) and earthing switch (1 O + 1 C) if motor option.
b motor option
b opening release:
v shunt v undervoltage (option).
b closing release: shunt trip.
b fuse blown release: any fuse blown trips the opening of the switch.
Motor option and releases
Un
Supply
Motor option
24
(W)
(VA)
(s)
200
(W)
(VA)
Undervoltage Pick-up (W)
(VA)
Latched (W)
(VA)
Closing releases
Shunt
(W)
(VA)
200
Opening releases
Shunt
AC (50 Hz) (1)
DC
(V)
48
110
125
220
120
230
200
<7
<7
250
300
300
300
400
750
280
550
50
40
400
750
160
4
200
250
300
300
300
(1) Please consult us for other frequencies.
31
DI switch cubicle (cont.)
Switchgear
Fuse ratings for MCset protection units depend, among other things, on the following criteria:
b service voltage
b transformer rating
b fuse technology (manufacturer).
Different types of fuses with medium loaded striker maybe installed: v Solefuse fuses as per standard UTE NCF 64.210
v Fusarc CF fuses as per IEC recommendation 60.282.1 and DIN dimensions 43.625.
For fuse-switch combination unit, refer only to the selection table and reference list of fuses. For all other type of fuses, consult us.
Example: for the protection of a 400 kVA transformer at 22 kV, select either Solefuse
fuses rated 16 A or Fusarc CF fuses rated 25 A.
Fuse selection table
Rating in A - no overload at –5°C < t < 40°C. Please consult us for overloads and operation over 40°C for France Transfo oil immersed type transformers.
Type of Service
fuse
voltage
(kV)
Transformer rating (kVA)
25
50
100
125
160
200
250
Solefuse (UTE NFC standards 13.100, 64.210)
20
6.3
6.3
6.3
6.3
16
16
16
Solefuse (general case, UTE NFC standard 13.200)
20
6.3
6.3
6.3
6.3
16
16
16
22
6.3
6.3
6.3
6.3
16
16
16
Fusarc CF and SIBA (1) (general case according to IEC 62271-105)
20
6.3
6.3
10
10
16
16
25
22
6.3
6.3
10
10
10
16
20
315
400
500
630
800
1000
1250
1600
16
43
43
43
43
43
63
16
16
31.5
16
31.5
31.5
31.5
31.5
43
31.5
43
43
63
63
63
25
25
31.5
25
40
31.5
40
40
50
40
50
50
63
50
80
80
2000
2500
Rated
voltage
(kV)
24
24
100 (1) 125 (1) 24
80
100 (1)
(1) = SIBA fuses
Fuses dimensions
DE57466
Solefuse (UTE standards)
ø 55
35
ø6
450
35
Ur
(kV)
Ir
(A)
L
(mm)
Ø
(mm)
Weight
(kg)
24
6.3 to 63
450
55
2
Ur
(kV)
Ir
(A)
L
(mm)
Ø
(mm)
Weight
(kg)
24
6.3
442
50.5
1.6
10
442
50.5
1.6
16
442
50.5
1.6
20
442
50.5
1.6
25
442
57
2.2
31.5
442
57
2.2
40
442
57
2.2
50
442
78.5
4.1
63
442
78.5
4.1
80
442
86
5.3
Ur
(kV)
Ir
(A)
L
(mm)
Ø
(mm)
Weight
(kg)
24
100
442
85
5.4
125
442
85
5.4
23
DE57467
Fusarc CF
ø 45
33
Ø
L
ø 6
33
23
DE57467
SIBA
ø 45
33
32
Ø
L
ø 6
33
23
DE57469
DE57468
Accessories
Withdrawable parts extraction
Extraction table
Adaptable to the cubicle widths, this extraction table enables:
b the withdrawable part to be removed from the cubicle
b the withdrawable part to be fitted into the cubicle.
Extraction and lowering tool - option
DE57582
Adaptable to 3 cubicle widths, this extraction tool enables:
b the withdrawable part to be removed from the cubicle
b the withdrawable part to be introduced into the cubicle
b the withdrawable part to be lowered to the ground
b the withdrawable part to be lifted from the ground.
Racking handle
This handle enables:
b the withdrawable part to be racked in/out
b the earthing switch to be open/closed.
33
Withdrawable parts extraction (cont.)
Accessories
This table describes the safety functions available on MCset.
How to use the table
Each of the boxes describes the functional status of each circuit breaker position
and the associated parts:
Possible status
Possible status, impossible operation
Impossible status
Parts
Circuit breaker positions
Insertion
Racking-in
Extraction
Racking-out
Removed
Disconnected Test position
Service
Fool-proof
protection (1)
1 - Cradle
Anti-drop (2)
No opening shutters
Shutters padlocking possible
2 - LV plug
Disconnected
No racking-in
Connected
3 - Circuit breaker
Closed
No unplugging
Auto-discharge
function (3)
No racking-in
Open
No racking-out
No closing
Open position circuit breaker locking available (3)
4 - Switchboard door
Open
No racking-in
No door opening (4)
Closed
5 - Earthing switch
Open
Closed
No earthing switch closing
No racking-in
(1) This protection mechanism ensures that the performance levels of the circuit breaker correspond with those of the cradle.
(2) Device that prevents the circuit breaker from dropping when extracted from the cradle.
The device can be either unlocked manually or when the extraction rig is put in position.
(3) Option.
(4) Interlocking device to be fitted to the cubicle door. If there is no interlocking, the circuit breaker device should be inhibited.
34
Implementation examples
Installation
MCset 4 layout (24 kV)
Line up switchboard
DE57777
(2 supplies cubicles and 1 bussection at 24 kV)
500
900
900
3 feeders
cubicle AD4
900
900
incomer
cubicle AD4
900
900
900
bussection
cubicles CL4/GL4
900
900
incomer
cubicle AD4
900
900
500
4 feeders
cubicle AD4
DE57778
Civil engineering with utility space
room
entrance
(1)
2500 2800
150
(1) Minimum dimensions to be complied with when installing
the MCset switchboard.
(2) The cable basement or cable trench depth can be reduced
if it is compatible with the bending radius of the cables used.
(3) Operating distance.
(4) Distance needed to extract a functional unit.
(5) Provide an exhaust tunnel above the switchboard when the
room height is less than 4 metres (see page 12).
A
anchor point
B
adjustment point
(3)
(4)
1700 - 2600
1750
B
(1)(5)
A
330
(1)
550
1200
(2)
Note: for further information, refer to the civil engineering guide,
user and instruction manual.
35
Installation
Connections
PE56239
Switchgear resistance to ageing in a substation depends on
3 key factors
b The need for correctly made connections
New cold connecting technologies offer easy installation and favour durability in time.
Their design means they can be used in polluted environments with harsh
atmospheres.
b The impact of relative humidity
The installing of a heating element is essential in climates with high relative
humidities and significant temperature differentials.
b Ventilation control
The dimensions of air vents must be appropriate for the dissipated energy
in the substation. They must only sweep across the transformer environment.
Cold connected terminals
Schneider Electric’s experience has led it to favour this technology wherever possible for optimum durability. The maximum acceptable cable cross-section for standard assemblies are: b 630 mm2 for incomer or feeder cubicles with single-pole cables;
b 400 mm2 for incomer or feeder cubicles with three-pole cables;
b 95 mm2 for transformer protection cubicles with fuses.
Access to the compartment is only possible when the earthing switch is closed.
Tightening torques for cables will be attained using a dynamo wrench set to 50 mN.
Dry, single core cable
Short end piece, cold connectable
Performance
3 to 24 kV - 400 A - 2500 A
Cross section mm2
50 to 630 mm2
Supplier
All suppliers of cold connectable terminals:
Silec, 3M, Pirelli, Raychem...
Number of cables
1 to 8 per phase
Comments
For greater cross section and number of cables,
please consult us
Dry, three core cable
Short end piece, cold connectable
Performance
3 to 24 kV - 400 A - 2500 A
Cross section mm2
50 to 400 mm2
Supplier
All suppliers of cold connectable terminals:
Silec, 3M, Pirelli, Raychem...
Number of cables
1 to 4 per phase
Comments
For greater cross section and number of cables,
please consult us
Connection possibilities using dry cables
Number of cables
1 single per phase
2 single per phase
3 single per phase
4 single per phase
1 three per cubicle
2 three per cubicle
3 three per cubicle
4 three per cubicle
AD4
b (1)
b (1)
b
b
b
b
b
b
RD4
b
b
b
b
b
b
b
b
(1) Possibility of installing LV core balance type transformers.
36
DI4
b
Installation
Connections (cont.)
DE57779
Bottom cable connection
Cable connection height
Type of cubicle
Configuration
AD4 - RD4
630 A
630 to 2500 A
H (mm)
LV core balance CT
1 set of 3 CT’s
2 sets of 3 CT’s
DI4
H
530
420
410
650
b The cubicles and cables requiring the maximum depth should be taken into
consideration when determining the depth P of a switchboard cable duct (Fig. 1).
b When using cables of length greater than 430 mm for MCset 4, install
an additional compartment as marked (A) under the cubicle (Fig. 2).
P
DE57780
Fig. 1
DE57781
Fig. 2
Top cable connection (optional)
The additional depth is 500 mm as a standard cubicle.
Rated current In : 630 A and 1250 A
Top busbar connection (optional, fig. 3)
The additional depth is 500 mm as a standard cubicle.
Rated current In : 1250 A and 2500 A
Fig. 3
37
Cubicle equipment
Appendix
Equipment
Type of cubicle
AD4
RD4
CL4
GL4
TT4
DI4
Switchgear
Circuit breaker
Pressure switch
Fuse switch
Disconnector truck
Earthing truck
Fixed busbar
Racking position indication contact for the withdrawable part
Padlocking of isolating shutters for withdrawable parts
Locking of withdrawable part/cable compartment
Disabling of circuit breaker operating mechanism
b
v
b
v
v
v
v
v
b
b
6 NO + 6 NC
Voltage presence indicator
b
v
b
b
b
v
b
v (3)
v (3)
v (3)
b (3)
b
v
v (1)
v (1)
v
v
v (1)
v (1)
v
v
v (1)
v (1)
v
b
v (7)
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v (6)
v
v
v
v
v
v
v
v
v
b
v
v
v
b
v
b
v
v
b
v
b
v
v
b
v
b
v
v
b
v
b
v
v
b
v
v
v
v
v
v
v
Earthing switch (SMALT)
Earthing switch
Earthing switch position indication contacts
Earthing switch position key locking (1)
Electromagnetic earthing switch position locking
2 NO + 2 NC
Transformers
Voltage transformers
Current transformer
Fixed VT without fuse
With plug-in fuses
Single set
Double set
LV core balance CT (4)
Phase-phase
(1 or 2 per cubicle)
Phase-earth
(1 per phase)
Phase-earth
3 TC
6 TC
v (6)
Connections
Connection with cable terminal height > 430 mm (MCset 4)
Connection from top bar
Connection by cable from the bottom
Connection by cable from the top
v
b
Cubicle
Protection index
Enclosure
Anti-arcing protection (2)
Compartments (9)
25 kA - 1 s
IP3X
IP4X
IPX1 (8)
IP2XC
31.5 kA - 0.15 s
Lightning arrester
b
v
v
b
v
b
v
v
b
v
v
v
v
Busbars
1250 A, 2500 A
Exposed
v
v
v
v
v
v
Insulated
b
b
b
b
b
b
v
v
b
v
v
b
v
v
b
v
v
b
v
v
b
v
v
b
LV control cabinet
LV control cabinet key locking
LV control cabinet lighting (220 V AC/127 V DC)
Anti-condensation heating element (220 V AC/127 V DC)
b : basic equipment.
v : option.
(1) Basic equipment with earthing switch option.
(2) According to the room in which the MCset switchboard is installed, you can choose AFL or AFLT,
and possibly an exhaust tunnel for hot gases (≥ 4 m and ≤ 4 m).
(3) Basic equipment when the cubicle is equipped with an earthing switch.
(4) Connection 1 or 2 cables per phase.
(5) Possibility of 1 phase-phase VT.
(6) Only for 630 A cubicle.
(7) 1 NO + 1 NC available.
(8) For IPX2, consult us.
(9) Compartment protection.
38
Appendix
Current transformers
Selection guide
Preferred current transformers:
24 kV secondary 1 A or 5 A
Accuracy class ratio
Isc kA 1 s
40-80/1 or 5
2.5-5 VA - 5P20
AD4
CL4
31.5
v
31.5
50-100/1-5
2.5-5 VA - 5P20
v
75-150/1 or 5
2.5-5 VA - 5P20
v
100-200/1-1 or 5-5
2.5-5 VA - 5P20
v
150-300/1-1 or 5-5
2.5-5 VA - 5P20
10-20 VA - cl 0.5
v
200-400/1-1 or 5-5
5-10 VA - 5P20
7.5-15 VA - cl 0.5
v
250-500/1-1 or 5-5
5-10 VA - 5P20
10-20 VA - cl 0.5
v
600/1-1 or 5-5
7.5 VA - 5P20
20 VA - cl 0.5
v
750/1-1 or 5-5
7.5 VA - 5P20
20 VA - cl 0.5
v
1000/1-1 or 5-5
10 VA - 5P20
30 VA - cl 0.5
v
v
1250/1-1 or 5-5
10 VA - 5P20
30 VA - cl 0.5
v
v
1500/1-1 or 5-5
15 VA - 5P20
30 VA - cl 0.5
v
v
2000/1-1 or 5-5
15 VA - 5P20
30 VA - cl 0.5
v
v
2500/1-1 or 5-5
15 VA - 5P20
30 VA - cl 0.5
v
v
v : option.
Other characteristics are available, including the possibility of having 3 secondary windings. Please consult us detailing the type of protection or measuring required as well as the impedance of the outside loads and the cabling.
39
MCset, a product for all your
electrical distribution applications
A few references
A53-MAPP
Industry
b
b
b
b
b
b
b
b
b
b
b
b
Oil, Girassol Mpg-Elf, Angola
Oil, Repsol, Santander, Spain
Oil, Sincor (Total), Venezuela
Pharmaceutical, Merck, Singapore
Automotive, Volvo, Belgium
Automotive, Ford, Germany
Cement production, Lafarge, France
Agri-food, Mastellone, Argentina
Alcoa Aluminium, Australia
General Motors, Thailand
BD Medical, Singapore
Bridgestone, Hungary
Infrastructure
b
b
b
b
b
b
b
b
Port of KSA Jeddah, Saudi Arabia
Santafe de Bogota airport, Colombia
Slim River Hospital, Malaysia
Water treatment, Degremont, Argentina
ABV Rock, Saudi Arabia
Valencia Airport, Spain
Hamilton Hotels, Australia
Grand Indonesia Project, Indonesia
Energy
E74226
E74223
b
b
b
b
b
b
b
b
b
40
Sarlux power station, Italy
EVN thermal power station, Vietnam
Costa Nera SA power station, Argentina
Electrical distribution, DES (department of electrical services), Brunei
Renovation of the Chernobyl nuclear power station, Ukraine
Wind Turbines, France
Skagerak Nett AS, Norway
Union Electrica, Cuba
PetroVietnam Refinery, Vietnam
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