CTD8S

CTD8S
Accessories
AC Split-Core Current Transformer
Type CTD-8S ( max 30x80 mm)
• Bus-bar type split core current transformer
• Class 1 accuracy
• Currents from 150 A to 2500 A
• Up to 10 Bus-bar isolated fixing screws
• Double screw terminals (up to 8-wire connections)
• Sealable terminal block covers
• Sealable fixing split-core screws
Product Description
Ordering Key CTD-8S 2500 5A XXX
Split-core current transformer
with bus-bar mountng facility.
Model
Primary current
Secondary current
Option
Rated primary currents from
150 A to 2500 A.
Type Selection
Primary current
Secondary current
Option
From 150A to 2500A
(Refer to the Range Table)
1A (on request)
5A
XXX:
XTX:
none
tropicalization (on request)
Input Specifications
Operating frequency
Max. system voltage
Rated insulation level
Insulation class
Short-time current rating
Ith
Idyn
Extended current rating
Security factor (FS)
48 to 62 Hz
0.72 kV
3 kV/1 min. @ 50 Hz
E (max 75°C)
Typical 100 In /1 s
2.5 Ith
The short-time thermal
current Ith is anyway limited
by the cable/bus-bar size
120%
≤ 5 (Class: 1 and 3)
General Specifications
Standards
Housing
Mounting
Standard accessories
Special features
Storage temperature
Approvals
Connection
Cable cross section area
Protection degree
According to EN60044-1
ABS, self-extinguishing:
UL 94 V-0
Bus-bar mounting
Two terminal block screws.
Ten bus-bar
fixing screws.
Ten plastic caps for
bus-bar fixing screws.
Two sealable terminal block
covers.
1 A secondary current,
Tropicalization
Specifications are subject to change without notice
Working temperature
Bus-bar size
Weight
-25°C to +60°C (-13°F to
140°F) (R.H. < 90% non
condensing @ 40°C)
-30°C to +70°C (-22°F to
158°F) (R.H. < 90% non
condensing @ 40°C)
CE
Screw type
From 1.5 to 6 mm2
Min/Max screws tightening
torque relevant to terminal
block screws: From 1 to 2 Nm
Max screws tightening
torque relevant to the
cable/bus-bar fixing screws:
0,3 Nm
IP00 (without sealable terminal
covers)
IP20 (with sealable terminal
block covers + wire terminals)
Max. 30x80 mm
From 450 to 700 g
Output Specifications
Rated secondary current
CTD-8 S DS ENG 241008
5 A or 1 A
1
CTD-8S
Range Table
Model CTD-8S from 150A to 750A
Primary
Burden (VA)
Current
A
CL 1
CL 3
150
1.5
200
1.5
250
2
300
2
400
3
5
500
5
7
600
6
10
700
6
10
750
8
12
Model CTD-8S from 800A to 2500A
Primary
Burden (VA)
Current
A
CL 1
CL 3
800
8
12
1000
10
15
1200
12
15
1250
12
15
1500
15
20
1600
15
20
2000
20
25
2500
25
30
Benefits
1
5
6
• Easy way to open and close the CT core by
the dedicate seleable screws (see figure 1).
• Bridging of current transformer output
without changing the connection of the
secondary, so to avoid any output
overvoltage during either the maintenance or
the installation procedure (see figure 2).
• Easy output and earth connection (see fig. 3).
• Multiple screws provided with isolation cap
screws to grant a strong and reliable fixing of the
current transformer to the bus-bar (see figure 4).
• Screw terminals compatible with any kind of
wire terminals and protection of screw
terminals using specific sealable covers to
assure always the best safety (see figure 56-7-8).
2
3
7
8
4
Dimensions (mm)
Wiring Diagram
S1
S2
L
P1
P2
N
2
Specifications are subject to change without notice
CTD-8 S DS ENG 241008
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertising