ISF2 Switch(user maintenance manual)

ISF2 Switch(user maintenance manual)
switch
MV distribution
circuit breaker
at your service
Anglais
user and
maintenance
manual
ISF2 switch for electrical
furnaces
Released for Manufacturing
Printed on 2010/02/23
foreword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3
general description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5
handling and storage instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7
symbols and conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
as per iso 3864---2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
contact the Schneider Electric service unit for diagnosis and advice
distribution rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
safety rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ISF2 all ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3
3
4
4
4
5
identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ISF2 dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
unpacking and handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7
8
9
10
11
installation instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13
operating instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
23
preventive maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
27
maintenance instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
39
corrective maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
41
phase marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
installing an ISF2 circuit breaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
connection to the earth bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
upper MV electrical connection on the pole . . . . . . . . . . . . . . . . . . . .
LV electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
fitting the protective covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
wiring diagram n˚730710 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
wiring diagram n˚730720 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
wiring diagram n˚732640 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
wiring diagram n˚731415 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
...........................................................
presentation of the control plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
charging the ISF2 manually . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ISF2 remote operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
locking the ISF2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
preamble . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
maintenance programme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
summary table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
preventive maintenance and cleaning instructions . . . . . . . . . . . . . .
checking wear on the arcing contacts . . . . . . . . . . . . . . . . . . . . . . . . .
greasing the spring guides . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
operating mechanism unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
latching unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
gear motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
mechanical and electrical endurance . . . . . . . . . . . . . . . . . . . . . . . . . .
7897068EN revision : 02
preamble . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
summary table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
keylock (optional) replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
replacing the closing springs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
operating release replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
for position I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
for position II . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
for positions III or IV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
for position V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
motor (of gear motor) replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . .
micro switch replacement
(SE)
...............................
Released for
Manufacturing
Printed on 2010/02/23
13
13
13
14
15
16
18
19
20
21
21
23
23
24
25
27
28
28
29
30
35
36
37
37
39
41
41
42
42
46
46
47
47
48
48
49
1
end---of---charging contact replacement . . . . . . . . . . . . . . . . . . . . . . .
anti---pumping relay replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
auxiliary contact block replacement . . . . . . . . . . . . . . . . . . . . . . . . . . .
SF6 gas recovery at the end of service life . . . . . . . . . . . . . . . . . . . . .
troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2
49
51
52
53
54
55
Released for Manufacturing
Printed on 2010/02/23
7897068EN revision : 02
foreword
symbols and
conventions
Caution:
you will find all the symbols
below throughout the
document, indicating
the hazard levels
depending on the
different types of situation.
DANGER
as per iso 3864---2
DANGER: failure to follow this
instruction will result in death or serious
injury.
WARNING
as per iso 3864---2
WARNING: failure to follow this
instruction may result in death or
serious injury.
CAUTION
as per iso 3864---2
CAUTION: failure to follow this
instruction may result in injuries.
This alert signal can also be used to indicate
practices that could damage the SM6 unit.
INFORMATION--ADVICE
We draw your attention to this specific point.
7897068EN revision : 02
Released for Manufacturing
Printed on 2010/02/23
3
contact the Schneider
Electric service unit for
diagnosis and advice
Call your sales representative who
will put you in contact with
the closest
SCHNEIDER ELECTRIC
group service centre.
You can log on to:
www.schneider-- electric.com
distribution rules
safety rules
The aim of this publication
is to enable the SF6 unit
to be installed correctly.
This document is not a commercial
document.
It is a strictly technical document
drawn up by Schneider Electric.
WARNING
CAUTION
All the operations described below
must be performed in compliance
with applicable safety standards,
under the responsibility
of a competent authority.
The contractor must be certified
and authorised to manipulate
and perform work on the SF6
unit.
CAUTION
Only undertake the work after
having read and understood
all the explanations given in this
document.
If you have any difficulty complying
with these rules, please contact
Schneider Electric.
4
Released for Manufacturing
Printed on 2010/02/23
7897068EN revision : 02
general description
ISF2 all ratings
2500 A with or without screen
P
P
A
J
J
P
C
F
E
D
B
K
K
G
H
W
P
Q
A
J
J
P
N
C
F
E
D
B
K
K
G
H
A
B
C
D
E
F
G
H
W
7897068EN revision : 02
: SF6 poles
: circuit breaker frame
: GMh operating mechanism
: control panel
: operating handle
: front plate
: pressure switch
: frame
: screen
LV connection A
J : upper wiring outlet
K : lower wiring outlet
MV connection
N : deflector (200kV)
P : top terminal pads
bottom terminal pads
Released for Manufacturing
Printed on 2010/02/23
5
3000 A with or without screen
W
T
R
A
J
J
F
D
V
U
E
C
B
K
K
G
H
400 A withdrawable
T
R
J
A
J
F
C
V
B
U
K
D
K
H
A
B
C
D
E
F
G
H
W
6
: SF6 poles
: circuit breaker frame
: GMh operating mechanism
: control panel
: operating handle
: front plate
: pressure switch
: frame
: screen
LV connection B
J : upper wiring outlet
K : lower wiring outlet
MV connection
R : upper arm
T : top connections
U : lower arms
V : bottom connections
Released for Manufacturing
Printed on 2010/02/23
7897068EN revision : 02
handling and storage instructions
identification
Check:
H that the characteristics on the
rating plates correspond to those
stated on the order form.
that the wiring diagram is
included with the device.
H
location of rating plates
A : rating plate
Circuit breaker type and
performance
B : rating plate
characteristics of the
control and Auxiliaries
C : minimum voltage openin
release option
E : keylock option
F : earthing plug
E
A
C
B
F
IEC rating plates, circuit
breaker, control and
auxiliaries
1 : designation of device type
2 : rated voltage
3 : rated lightning impulse
withstand voltage
4 : continuous rated current
5 : rated breaking capacity (3s
short ---circuit)
6 : off---load breaking capacity
7 : rated operation sequence
8 : class
9 : SF6 weight
10 : reference standard
11 : opening release(s)
characteristics
1)
2)
3)
4)
5)
6)
7)
11)
8)
9)
10)
options labels
A : red label indicates minimum
voltage opening release
option
B : label indicating the keylock
option
7897068EN revision : 02
A
B
Released for Manufacturing
Printed on 2010/02/23
7
ISF2 dimensions
300
2500 A
C
D
B
A
2500 A with screen
300
C
D
B
A
3000 A with or without
screen
300
C
D
A
B
400 A withdrawable
C
D
A
8
A
B
E
Released for ManufacturingB
Printed on 2010/02/23
7897068EN revision : 02
ISF2 fixed and
withdrawable
between
phases
dimensions
weight in kg
A
B
C
D
ISF2
Frame
2500 A
300
910
774,5
1147
261
174
20
2500 A with screen
300
910
774,5
1108
261
170
20
3000 A
300
910
957
1135
261
210
20
400 A withdrawable
300
1023
1095
1215
261
190
20
unpacking and
handling
Unpack the equipment where it
is to be installed.
H avoid impacts and distortion
when removing the sides of the
crate.
CAUTION
The poles are under pressure.
H Take the operating handle from
the bottom of the crate (B).
lifting off the crate
This operation is the same for all
devices.
E
E
A
A
B
Attach slings to the lifting rings (E)
and tighten them without lifting the
assembly.
H
H
H
remove the 4 screws (A)
lift the device (B)
place the device on the ground
removal of the
transportation support
fixed ISF2 with support frame
C
D
Tighten the slings to take the
weight of the assembly.
7897068EN revision : 02
remove the screws (C)
remove the supports (D)
Lift and place the device on the
ground.
H
H
Released for Manufacturing
Printed on 2010/02/23
9
handling
by lifting
E
E
E
Attach slings to the lifting rings on
the fixed or frame---supported
device (E).
After handling.
Remove the two lifting rings and
the screws (E)
note: the lifting rings and the
screws should be kept in case
they are needed for future
handling operations.
Rolling on smooth ground, using
the front face to handle the device.
Never pull or push the device by
its poles (poles under pressure).
Once the device is unpacked, it
can only be handled by:
H
by rolling
CAUTION
lifting or rolling, for ISF2s fitted
with support frames.
lifting, for devices without a
support frame (using the rings (E))
H
10
Released for Manufacturing
Printed on 2010/02/23
7897068EN revision : 02
storage
The circuit breakers are shipped in
the ”O” open position with the
operating mechanism
”discharged”.
Store the equipment in its original
packaging
The storage area should be dry,
well---ventilated, protected from the
rain, splashes of water and chemical
agents. Protect the equipment from
dust, gravel, paint, etc. with a sheet
or cover.
70˚ C
--- 40˚ C
long storage periods
7897068EN revision : 02
After a long period in storage,
clean the insulating parts carefully
before using the device.
The casing should be dusted
using a clean dry cloth.
Released for Manufacturing
Printed on 2010/02/23
11
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12
Released for Manufacturing
Printed on 2010/02/23
7897068EN revision : 02
installation instructions
phase marking
1
2
3
1 : phase 1
2 : phase 2
3 : phase 3
installing an ISF2
circuit breaker
E
C
D
A
E
B
For a circuit breaker with support
frame.
Secure the support frame to the
plates (A) embedded in the
ground using the angle bracket (B)
and screws (C)
Insert enough washers in (D) to
avoid distorting the angle bracket
(B) when it is tightened.
For a circuit breaker without
support frame.
Use the cage nuts (E).
connection to the earth
bar
The connection is located at the
bottom on the right of the pole
support.
7897068EN revision : 02
Released for Manufacturing
Printed on 2010/02/23
13
upper MV electrical
connection on the pole
connection to pole
Top view of the pole and
connection insert.
H exact torque to be applied:
75Nm.
H two tapped M12 holes (A)
H location of the screws:
--- minimum = 18mm.
--- maximum = 28mm.
2500 A
C
30
∅ 59
G
C
10
30
H
100
35
G
∅6
0
... connect the bars (C) to the
terminal pad (G).A
32,5
∅6
0
H 2 x Ø14 holes on the terminal pad
(G) Use M12 screws (H) to...
connection to U-- shaped
terminal pad by CU bars
Minimum recommended
dimensions for the connection
bars (L) are: 2 x 100 x 8 (not
supplied)
32,5
15
A
30
78
connection to terminal pad by
CU bars
Minimum recommended dimension
for the connection bars (C) are: 2 x
63 x 10 (not supplied)
H
15
8
50
8
L
35
L
K
J
K
J
8 x Ø13 holes on the terminal pad
(J). Use M12 screws (K) to...
32,5 35
...connect the bars (L) to the
terminal pad (J).
49,5
L
35
connection by CU bars
Minimum recommended
dimensions for the connection
bars (N) are: 4 x 100 x 8 (not
supplied)
N
100
3000 A
32,5
H
AUC
8 x Ø13 holes on the terminal
pad (L). Use M12 screws (P) to...
P
H
14
...connect the bars (N) to the
terminal pad (L).
Released for Manufacturing
Printed on 2010/02/23
7897068EN revision : 02
2500 A
18
connection to terminal pad by
CU bars
Minimum recommended
dimensions for the connection
bars (E) are: 2 x 63 x 10. (not
supplied)
A
E
30
A
E
K
J
∅ 60
K
2 x Ø14 holes on the terminal
pad (J). Use M12 screws (K) to...
N
32,5 35
49,5
10
35
N
8 x Ø13 holes on the terminal
pad (L). Use M12 screws (M) to...
32,5 35
M
...connect the bars (N) to the
terminal pad (L).
49,5
L
35
100
N
32,5
H
connection by CU bars
Minimum recommended
dimensions for the connection
bars (N) are: 4 x 100 x 8 (not
supplied)
50
10
L
3000 A
...connect the bars (E) to the
terminal pad (J).
L
100
connection to U-- shaped
terminal pad by CU bars
Minimum recommended
dimensions for the connection
bars (N) are: 2 x 100 x 8 (not
supplied)
32,5
H
AUC
P
8 x Ø13 holes on the terminal
pad (L). Use M12 screws (P) to...
H
LV electrical connection
7897068EN revision : 02
CAUTION
...connect the bars (N) to the
terminal pad (L).
Connection to the low voltage
terminals requires the following to
be removed:
H the protective front plate.
H the control plate.
Released for Manufacturing
Printed on 2010/02/23
15
removal of the protective
covers
removal of the front plate.
A
A
A
A
A
A
A
A
Move the charging handle out of
the way to remove the protective
front plate.
Remove the 8 M6 fastening screws
and contact washers (A)
Remove the front plate.
removal of the control plate
To remove the plate:
H Remove the 4 M6 locknuts and
contact washers (B).
B
B
B
fitting the protective
covers
16
Carry out the above procedure in
reverse order.
Released for Manufacturing
Printed on 2010/02/23
7897068EN revision : 02
circuit breaker LV wiring
path
A
C
A or B wiring outlet for ”end user”
connection.
This LV outlet can be installed on
the left side at the top (A) or bottom (B) of the ISF2. The unused wiring outlet is
blocked with a cover (C).
F
C
LV connection
The wiring is connected according
to the diagram delivered with the
device.
C : 5 rotating auxiliary contacts.
E : 9 rotating auxiliary contacts.
F : LV terminal block
E
B
7897068EN revision : 02
C
Released for Manufacturing
Printed on 2010/02/23
17
wiring diagram n˚730710
18
Released for Manufacturing
Printed on 2010/02/23
7897068EN revision : 02
wiring diagram n˚730720
7897068EN revision : 02
Released for Manufacturing
Printed on 2010/02/23
19
wiring diagram n˚732640
20
Released for Manufacturing
Printed on 2010/02/23
7897068EN revision : 02
wiring diagram n˚731415
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7897068EN revision : 02
Released for Manufacturing
Printed on 2010/02/23
21
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22
Released for Manufacturing
Printed on 2010/02/23
7897068EN revision : 02
operating instructions
presentation of the
control plate
A operating mechanism chargin
handle
B operating mechanism chargin
handle housing
C closing push button.
D opening push button
E operations counter
1
F
2
E
F ISF2 moving position indicator:
1 (O) visible --- ISF2 open.
2 (I) visible --- ISF2 closed.
GG
G moving operating mechanism
position finder:
H operating mechanism position
indicator:
1 operating mechanism charge
indicator (spring compressed).
2 operating mechanism
discharged indicator (spring
released)
A
D
1
J
H
2
J keylock to lock the ISF2 in the
”open” position (optional).
charging the ISF2
manually
C
BB
This operation is carried out with
the handle (A) inserted into its
housing (B).
To operate the ISF2, the operating
mechanism must first be charged.
The energy stored in the springs
then allows the ISF2 to be closed
and opened.
A new cycle can be carried out by
recharging the operatin
mechanism.
charging the operating
mechanism
ISF2
indicator
operating
mechanism
indicator
Starting position
--- ISF2 open.
--- Operating mechanism
discharged
Charge the operating mechanis
by ratchetting until the
end---of---charging click is heard.
The ISF2 position indicator
remains at ”O” (device open).
ISF2
indicator
7897068EN revision : 02
operating
mechanism
indicator
The operating mechanism
indicator shows that it is charged.
Released for Manufacturing
Printed on 2010/02/23
23
closing
Note:
closing is impossible if there is still
at least one anti---closure locking.
CAUTION
if the ISF2 is fitted with an
undervoltage release (optional),
this must be...
...powered in order to close the ISF2
(except for a downstream power
supply).
F
1
H
2
Push button ”I” to close the ISF2.
The ISF2 F1 position indicator...
...switches to ”I” (device closed).
The operating mechanism indicator
H2 shows it is not charged.
opening
F
2
H
2
ISF2 remote operation
24
Push button ”O” to open the ISF2.
The ISF2 F2 position indicator...
...switches to ”O” (device open).
The operating mechanism
indicator H2 shows it is not
charged.
charging the operating
mechanism electrically
A gear---motor unit automatically
recharges the operating
mechanism after the ISF2 has
been closed.
opening and closing
The opening and closing releases
are controlled remotely.
Released for Manufacturing
Printed on 2010/02/23
7897068EN revision : 02
locking the ISF2
The ISF2 is locked by the keylock
in the open position.
To lock:
H keep the ”O” open button
pressed down.
H tourner et retirer la clé.
(optional)
Note:
if the equipment is fitted with the
option to lock the ISF2 in the open
position, it cannot be closed.
7897068EN revision : 02
Released for Manufacturing
Printed on 2010/02/23
25
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26
Released for Manufacturing
Printed on 2010/02/23
7897068EN revision : 02
preventive maintenance
preamble
safety instructions
general rules
All the operations described below
must be carried out in compliance
with current safety standards
under the responsibility of a
competent person.
Our equipment is designed to
provide you with the best possible
service on condition that the
maintenance operations described in
this document are adhered to.
These maintenance operations
require the removal of the protective
covers (front plate and control plate).
Removing and refitting the front
plate is described in the
”installation instructions” chapter.
maintenance cycle and
operations
You are advised to perform:
--- one O/I operation at least once
a year
--- a visual inspection at least every
5 years to be arranged with the
Schneider group service centres.
rate of operations
The maximum average rate is 10
operations an hour.
Please consult us for higher rates.
environment
If the equipment is used in a dusty
or polluted environment, the
casings must be cleaned more
frequently (see page 31).
7897068EN revision : 02
To gain access to the different
elements:
H open the ISF2.
H couper l’alimentation des circuits
auxiliaires et du circuit principal.
H to discharge the operating
mechanism, carry out a
closing/opening sequence using
the push buttons.
H avoid impacts (casing under
pressure).
The control plate is removed by
removing the 4 marked screws.
Released for Manufacturing
Printed on 2010/02/23
27
maintenance programme
The mechanical operating
mechanism and mechanical links can
perform 50,000 operations in
accordance with the preventive
maintenance programme described
in the table below.
summary table
désignation
work to be carried out
supplies
tools
pole casing
plugging---in arm
dust the casing
cloth
dust the arm
cloth
measure the amount of wear
bell, lamp
arcing contact wear
operating mechanism
spring guide
operating mechanism unit
clean with degreaser
non---chlorinated degreasing cloth
solvent
grease
isoflex topas l152 grease
general cleaning
brush
cloth
grease, oil
vacuoline oils 133, brush,
oilcan, isoflex topas l152
grease
brush, oilcan
latch and linking unit
clean with degreaser
non---chlorinated degreasing cloth
solvent
gear motor
oil
grease
vacuoline oils 133
isoflex topas l152 grease
brush, oilcan
brush
pole mechanism
clean with degreaser
cloth
grease, oil
vacuoline oils 133, isoflex
topas l152 grease
brush, oilcan
every 5,000 operations:
every 10,000 operations
between 25,000 and
30,000 operations
maintenance schedule
cleaning, lubrication and
greasing
--- visual inspection
measurement of contact
wear
damper replacement, see
”corrective maintenance”
chapter
thorough overhaul of the
operating mechanism and
linking mechanism
--- replacement of auxiliary
contacts
see ”corrective maintenance”
chapter
X
X
X
X
X
: measurement of arcing contact wear every 5,000 operations only when the equipment is first put into service.
The maintenance operations
described above must only be
carried out by staff from
SCHNEIDER group service
centres.
28
Released for Manufacturing
Printed on 2010/02/23
7897068EN revision : 02
preventive maintenance
and cleaning
instructions
The pressurised SF6 gas inside the
pole retains all its dielectric properties
after breaking.
Electrical endurance is limited by
contact wear. This wear depends on
how the equipment is used.
We would like to draw your attention
to the dangers of cleaning by
high---pressure spraying with solvent.
The main problems related to this
procedure are as follows:
H damage due to the pressure of
the spray and the fact that it is
impossible to re---grease the
inaccessible fastening points.
H risk of over ---heating due to
solvent on the contact zones.
H removal of the special protective
coatings.
CAUTION
Never use solvents.
If the insulating elements are
dusty you are advised to dust
them using a dry cloth.
7897068EN revision : 02
Released for Manufacturing
Printed on 2010/02/23
29
checking wear on the
arcing contacts
Note:
procedure to be carried out
without the closing springs.
removal of the closing
springs
The operating mechanism has 2
springs. Mark them when they are
removed (so you know later which is
which).
CAUTION
right springs
Slightly charge the operating
mechanism using the handle.
30
The springs will be compressed.
Released for Manufacturing
Printed on 2010/02/23
7897068EN revision : 02
B
C
A
E
D
B
As soon as possible, insert a
Ø6mm, L= 40mm screw or lockin
pin (A) into the hole shown above.
Release the handle.
The force of the springs now acts
on the locking pin (A) and no
longer on the upper and lower
spindles (B).
(begin the cycle again if this point
has already been passed)
To disconnect the spring guide:
--- remove the clip (C) and washer (D).
--- separate the spring guide and
the ring (E) on the handle.
CAUTION
Do not scratch this teflon---coated
ring.
left springs
Continue to charge the operating
mechanism using the handle.
7897068EN revision : 02
The springs will be compressed.
Released for Manufacturing
Printed on 2010/02/23
31
G
F
J
As soon as possible, insert a
Ø6mm, L= 40mm screw or locking
pin (F) into the hole shown above.
Release the handle.
The force of the springs now acts
on the locking pin (F).
H
(begin the cycle again if this point
has already been passed)
To disconnect the spring guide:
H remove the clip (G) and washer
(H).
H separate the spring guide and
the ring (J) on the crank.
CAUTION
Do not scratch this teflon---coated
ring.
check
Connect the three phases in series
and insert an indicator mechanism
such as a bell into the circuit.
32
Charge the operating mechanism
until the end---of---charging click is
heard.
Released for Manufacturing
Printed on 2010/02/23
7897068EN revision : 02
Keep the lever under pressure whilst
simultaneously pulling the right crank
towards you until the ratchet wheel
engages.
Simultaneously press the closing
button and the charging lever to
release the latched ratchet wheel.
Stop charging as soon as the
lamp comes on. The arcing
contacts of the three phases are
now in contact.
CAUTION
Very slowly close the ISF2 using
the handle.
installing the right and left
closing springs
Red
Green
Red
Green
Hold the handle in this position,
with the bell in operation.
If the position has been passed,
repeat the operation.
If the poles activate the bell when
the finder is in the red zone, all
three poles MUST be changed.
arcing contact
wear OK
arcing contact
wear not OK
CAUTION
Installing the right and left springs
can be done at the same time.
7897068EN revision : 02
Released for Manufacturing
Printed on 2010/02/23
33
Disconnect the tester.
Very slowly close the circuit breaker
until the end---of---charging click is
heard.
Push the button, the device should
open.
Place the rings on the crank
spindles, right and left.
Place the right crank ring in the
opening of the right spring guide
using the charging handle.
Continue charging, placing the spring
guide in the correct position in the
groove on the left crank ring.
CAUTION
Mount without greasing. Do not
scratch the teflon coating on the
rings.
Place the right and left spring guides
on the spindles, ensuring they are
correctly in position in the groove on
the spindle.
34
Released for Manufacturing
Printed on 2010/02/23
7897068EN revision : 02
C
1
B
C
2
D
A
CAUTION
Do not grease this teflon---coated
ring (A).
Fit the washers (D) and clips (C) (on the right and left).
Remove the screws or the locking
pins (B).
Finish charging.
check
Carry out a closing/opening
sequence using the push buttons
”I” and ”O” to discharge the
operating mechanism.
greasing the spring
guides
closing spring
Charge the operating mechanism
by ratcheting until a click is heard.
The ISF2 position indicator remains at
”O” (device open).
The operating mechanism
indicator switches to the charged
position.
CAUTION
Do not grease this teflon---coated
ring (A).
WARNING
A
Greasing should be done using
a brush.
Do not remove the spring to
carry out this operation.
The springs will be compressed.
H grease the guides
H oil the phosphate---treated
springs
7897068EN revision : 02
Released for Manufacturing
Printed on 2010/02/23
35
opening spring
manual local closing of the ISF2
CAUTION
If the ISF2 is fitted with an
undervoltage release (optional), this
must be powered in order to close
the ISF2 (except for downstream
power supply).
Push the button to close the ISF2.
The ISF2 position indicator switches
to ”I” (device closed).
The operating mechanism
indicator switches to the
discharged position.
The springs will be compressed.
H grease the guides
H oil the phosphate---treated
springs
WARNING
Greasing should be done using
a brush. Do not remove the spring to
carry out this operation.
manual local opening of the ISF2
Push the button to open the ISF2.
operating mechanism
unit
The ISF2 position indicator switches
to ”O” (device open).
The operating mechanism
indicator shows that it is
discharged.
Clean the whole sub---assembly.
Oil all the phosphate---treated
parts.
Check that the ”Bauman” type
hoops are installed.
Grease the spindles and hinges.
WARNING
Greasing should be done using
a brush. Do not remove the operating
mechanism to carry out this
operation.
36
Released for Manufacturing
Printed on 2010/02/23
7897068EN revision : 02
latching unit
Clean the whole sub---assembly
then oil the phosphate---treated
parts.
Oil the latches and spindles.
WARNING
Oiling should be done using a
brush.
Do not remove the latching unit
to carry out this operation.
gear motor
Clean the whole sub---assembly.
Oil the phosphate---treated parts.
Grease the gears.
WARNING
Greasing should be done using
a brush. Do not remove the gear motor to
carry out this operation.
7897068EN revision : 02
Released for Manufacturing
Printed on 2010/02/23
37
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38
Released for Manufacturing
Printed on 2010/02/23
7897068EN revision : 02
maintenance instructions
mechanical and
electrical endurance
mechanical
electrical
The operating mechanism
mechanical endurance is 50,000
cycles if the preventive
maintenance programme given in
the Preventive Maintenance table
is adhered to.
This depends on
H the furnace load current
H the configuration of the circuit
when the equipment is being
operated
V
V
opening
closing
}
98% of tripping is done on
purpose and when the device opens,
the electrodes are out of the bath. It
interrupts the no---load transformer
magnetising current.
H The furnace transformer’s no---load
making current is less than 4 In.
H
electrode
in or out
of the bath
the characteristics of the
furnace transformer and in
particular the off---load inrush
currents
H the elements inserted in the
furnace supply line, inductance
that saturates, inductance that
doesn’t saturate, etc.
H
It can be estimated from the
graph in figure 1 based on the
following operating
assumptions:
H Protection against overload
currents greater than 2 In is provided
by the upstream circuit breaker.
H The number of times the switch
opens for overload currents (of
between In and 2 In of the furnace) is
less than 2% of the total number of
operations.
Fig. 1 --- Life expectancy for a set
of poles (number of C---O cycles)
according to the furnace’s load
current I.
It is measured as follows: in order
to establish the device’s electrical
endurance under real operating
conditions, arcing contact wear will
be checked every 5,000 operations
for the first device that is
commissioned. The curve thus
obtained experimentally will
establish the number of operations
which a set of poles can perform
and will be used as a basis for
preventive maintenance as long as
the operating conditions remain
the same.
cycles
50000
40000
30000
20000
10000
0
I (A)
0
7897068EN revision : 02
500
1000
1500
2000
Released for Manufacturing
Printed on 2010/02/23
2500
39
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40
Released for Manufacturing
Printed on 2010/02/23
7897068EN revision : 02
corrective maintenance
preamble
Corrective maintenance operations
allow faulty sub---assemblies to be
replaced.
The operations given in the
summary table below can be
carried out by the customer or b
the Schneider group After Sales
agents.
For any other intervention,
please call the nearest
Schneider group agents.
After each operation, carry out
electrical tests in accordance
with current standards.
CAUTION
When changing a part, the
following accessories must always
be replaced by new material.
-- Nylstop (self -- locking nut)
-- Contact washer
-- Spring retaining ring
-- Mechanical pin
summary table
description
to be carried out by
comments
pole replacement (see FAD 7897011)
=S=
pressure threshold alarm
damper replacement (see FAD 7897011)
=S=
linkage replacement (see FAD 07897414FE)
=S=
GMh operating mechanism replacement (see FAD
7896909)
=S=
keylock replacement
=S= ou Client
closing spring replacement
=S= ou Client
if non---operational before 5,000
operations
operating release replacement
single closing release
=S= ou Client
U applied or maximum I single opening release
=S= ou Client
minimum voltage release without reclosing
=S= ou Client
minimum voltage release with reclosing
=S=
U applied or maximum I double opening release
=S= ou Client
MITOP replacement
=S=
motor (of gear motor) replacement
=S= ou Client
every 10,000 operations
gear (of gear motor) replacement
=S=
every 10,000 operations
micro switch replacement (SE)
=S= ou Client
end---of---charging contact replacement
=S= ou Client
anti---pumping relay replacement
=S= ou Client
replacement of the 5 or 9 auxiliary contact block
=S= ou Client
every 10,000 operations
replacement of the operations counter
=S=
every 10,000 operations
action to be taken if a pressure switch alarm
occurs
=S=
7897068EN revision : 02
Released for Manufacturing
Printed on 2010/02/23
41
keylock (optional)
replacement
Unlock the lock.
Remove the screws A.
removal of the lock
A
fitting the lock
N.B.
The lock is collected from the site.
The indicator label is affixed to the
plate.
Adjustment
Screw A not tightened.
Hold the push button down.
Close the lock, with the key out.
Check that there is clearance B
and tighten the screws A.
A
B
replacing the closing
springs
removal
CAUTION
The operating mechanism has 2
springs. Mark them when they are
removed (so you know later which is
which).
right springs
Slightly charge the operating
mechanism using the handle.
42
The springs will be compressed.
Released for Manufacturing
Printed on 2010/02/23
7897068EN revision : 02
C
A
E
As soon as possible, insert a
Ø6mm, L= 40mm screw or locking
pin A into the hole shown above.
Release the handle.
The force of the springs now acts
on the locking pin A.
(begin the cycle again if this point
has already been passed)
D
To disconnect the spring guide:
H remove the clip C and washer
D.
H separate the spring guide and
the ring E on the handle.
CAUTION
Do not scratch this teflon---coated
ring.
left springs
Continue to charge the operating
mechanism using the handle.
7897068EN revision : 02
The springs will be compressed.
Released for Manufacturing
Printed on 2010/02/23
43
G
F
J
As soon as possible, insert a
Ø6mm, L= 40mm screw or lockin
n F into the hole shown above.
Release the handle.
The force of the springs now acts
on the locking pin F.
(begin the cycle again if this point
has already been passed)
H
To disconnect the spring guide:
H remove the clip G and washer
H.
H separate the spring guide and
the ring J on the crank.
CAUTION
Do not scratch this Teflon---coated
ring.
installing the right and left
closing springs
CAUTION
Installing the right and left springs
can be done at the same time.
Disconnect the tester.
Very slowly close the ISF2 until the
end---of---charging click is heard.
44
Press the button.
The device should open.
Released for Manufacturing
Printed on 2010/02/23
7897068EN revision : 02
Place the rings on the crank
spindles, right and left.
CAUTION
Mount without greasing. Do not
scratch the teflon---coated rings.
Place the right and left spring guides
on the spindles, ensuring they are
correctly in position in the groove on
the spindle.
Place the right crank ring in the
opening of the right spring guide
using the charging lever.
Continue charging, placing the spring
guide in the correct position in the
groove on the left crank ring.
1
B
C
2
D
A
CAUTION
Do not grease this Teflon---coated
ring A.
7897068EN revision : 02
Fit the washers D and clips C (on
the right and left).
Remove the screws or the locking
pins B.
Finish charging.
check
Carry out a closing/opening
sequence using the push buttons
”I” and ”O” to discharge the
operating mechanism.
Released for Manufacturing
Printed on 2010/02/23
45
operating release replacement
positions of operating
releases in the operating
mechanism
operating release
undervoltage
single
closing
minimum
voltage
opening
single
opening
voltage
applied
maximum
voltage
-
mounting position
viewed from above
I
-
II
-
III
double
opening
-
IV
V
for position I
single closing
removal
installation
46
Mark the wires and disconnect them.
Remove the two M6 fastening
screws.
Remove the operating release.
Perform the operation in the
reverse order to removal.
Tightening torque: 13Nm.
Place the cylinder trip rod towards
the latching mechanism.
Check that the rod from the coil
does not clamp the crank of the
unit in the tripped position.
It must ensure that the closing bolt
A moves over the half---moon B.
A
B
Released for Manufacturing
Printed on 2010/02/23
7897068EN revision : 02
for position II
undervoltage opening
release
Mark the wires and disconnect them.
Remove the two M6 fastening
screws.
Remove the operating release.
removal
installation
0,5 to 1 mm
1 mm mini
Place the operating release in the
tripped position.
Place the crank at its end stop.
There should be 0.5 to 1mm
clearance between the crank and
the operating release.
for positions III or IV
voltage applied or
maximum current opening
release
removal
installation
7897068EN revision : 02
Fit the two M6 fastening screws.
Tightening torque: 13Nm.
Check there is a minimum of 1mm
clearance between the crank in its
rest position and the operating
release when the magentic circuit
is closed.
Note: the coil is fitted on the right
or left of the operating mechanism
depending on the type of
protection.
For left ---hand installation, insert 4
x 0.5mm washers between the
operating mechanism frame and
the coil.
Mark the wires and disconnect them.
Remove the two M6 fastening
screws.
Remove the operating release.
Perform the operation in the
reverse order to removal.
Tightening torque: 13Nm.
Place the cylinder trip rod towards
the latching mechanism.
Check that the rod from the coil
does not clamp the crank for the
unit in the tripped position.
It must ensure that the opening
bolt A moves over the half---moon
B.
Released for Manufacturing
Printed on 2010/02/23
B
A
47
for position V
voltage applied or
maximum current opening
release (2 coils)
Mark the wires and disconnect them.
Remove the two M6 fastening
screws.
Remove the operating release.
removal
installation
motor (of gear motor)
replacement
removal
installation
48
Perform the operation in the
reverse order to removal.
Tightening torque: 13Nm.
Place the cylinder trip rod towards
the latching mechanism.
Check that the rod from the coil
does not clamp the crank for the
unit in the tripped position.
It must ensure that the opening
bolt A moves over the half---moon
B.
B
A
Mark the wires and disconnect them.
Remove the two M6 fastening nuts.
Remove the motor.
Perform the operation in the
reverse order to removal.
Tightening torque: 13Nm.
Released for Manufacturing
Printed on 2010/02/23
7897068EN revision : 02
micro switch
replacement (SE)
maintained tripping
removal
Remove the screws and lockin
ade.
Mark the wires and disconnect
them.
installation
Remove the two fastening nuts
without removing the screws.
Remove the micro switch without
removig the insulating plate.
Carry out the operation in reverse
order to removal.
Tightening torque: 0.7Nm.
end---of---charging
contact replacement
C
B
removal
A
N.B. Removing the left ---hand
closing spring will faciliate this
operation.
Do not remove
Remove the clip A and spacer B to
remove the spindle C.
The window allows a spanner to be
inserted to remove the screw E.
The end---of---charging contacts
are located on the left ---hand side
of the operating mechanism.
Mark the wires and disconnect
them
D
E
Remove the two screws to release
the contact support D.
7897068EN revision : 02
Swivel the guide to bring nut E in
front of the window.
Remove the fastening screw.
Released for Manufacturing
Printed on 2010/02/23
49
D
D
Swivel the contact.
Slide the support assembly D
and ...
... contacts upwards to free it from
the guide and operating mechanism.
Remove the faulty contact.
Install the new contact on the
support.
CAUTION
Only fit one screw on the
right ---hand contact.
Tightening torque: 2.8Nm.
installation
D
E
Slide the support assembly D
and contacts towards the bottom
of the guide.
50
Swivel the guide in front of the
window in order to fit the fastening
screw and nut E.
Tightening torque: 2.8Nm.
Released for Manufacturing
Printed on 2010/02/23
7897068EN revision : 02
C
B
D
A
Refit the contact support D without
tightening the screws.
Fit the spindle C, fit the spacer B
and the clip A.
check
Ensure there is at least 0.1mm
clearance between the spindle and
the guide, and tighten the screws.
Tightening torque: 6Nm.
0,1 mm mini
Check there is still 0.5 to 1mm of
clearance between the contact
finger and the part F.
With the operating mechanism
discharged, check that the
contacts are not stuck.
Connect the wiring.
F
0,5 à 1 mm
anti---pumping relay
replacement
Mark the wires and disconnect them.
The relay A is fixed to the auxiliary
contacts by the clamp B.
Remove the fastening bolt C.
Keep it for refitting.
Remove the relay A and the
insulating plate D.
removal
D
A
C
B
installation
7897068EN revision : 02
Perform the operation in the
reverse order to removal.
Tightening torque: 2 Nm.
Released for Manufacturing
Printed on 2010/02/23
51
auxiliary contact block
replacement
A
B
removal
1
1
C
A
2
2
Auxiliary contact block
1 --- 5 contacts
2 --- 9 contacts
Mark the wires and disconnect them.
D
E
For a 5---contact block: loosen
bolts A and free crank B and crank
C.
For a 9---contact block: loosen bolt D
and free crank E.
G
1
F
installation
52
Make a note of which way round
the contacts are mounted in
relation to hole F in order to fit the
new block in the same position.
Remove the bolts G.
Keep them for refitting.
Remove the block to be changed 1
or 2.
Perform the operation in the
reverse order to removal.
Tightening torque for the bolt:
A and D: 10Nm.
G: 2Nm.
Released for Manufacturing
Printed on 2010/02/23
7897068EN revision : 02
SF6 gas recovery at the
end of service life
conformity rules
This equipment contains SF6
which must be removed before
dismantling. The gas must be
removed in accordance with the
procedures described in IEC
61634 and by following the
instructions below. The gas must
be processed in compliance with
IEC 60480.
intervention method
A
Tool necessary for the operation
Unscrew the plug (A).
Plug dismounted.
Vacuum/filling device connected.
Wait until the pressure guage
shows 0 (15 min to empty the
tank) before removing the
connection.
7897068EN revision : 02
Released for Manufacturing
Printed on 2010/02/23
53
troubleshooting
The indications given below
reduce downtime to a minimum.
If the proposed solutions do no
correct the problem, contact the
nearest Schneider group service
centre.
symptoms
faulty elements
probable causes and
remedies
Impossible to charge
Electrical operating mechanism:
motor
Voltage is too low at the motor
terminals
H correct the voltage
H change the motor if necessary
End---of---charging contact
Wiring
Impossible to close
the ISF2.
The indicator remains
in the open position
H
H
check the condition of the contact
replace it if necessary
check the auxiliary circuit
connections
H
Tripped by the undervoltage release
The coil is not powered
H power the undervoltage release or
maintain it artificially in the
”closed---circuit” position (e.g. using
an elastic band)
Closing release
The closing release is not correctly
connected
H check the circuit. The winding is
cut
H change the release
Charging mechanism
The operating mechanism is not
charged
H charge the operating mechanism
The ISF2 closes and
opens immediately then remains
open when the closing order is
maintained
All opening releases
(direct or indirect)
There is a fault on the main MV circuit
or the protection circuits are incorrectl
adjusted.
H remove this fault
H adjust the protection circuits
The ISF2 opens and closes
alternately
Anti­ --pumping relay or direct
operating releases
The ISF2 does not open manually
or remotel
(circuit breaker without electrical
control)
Operating mechanism or circuit
breaker
(incomplete closing)
The operating mechanism or circuit
breaker is sticking
H finish charging the operatin
mechanism using the manual
charging handle
Inform the Schneider group
service centre
Opening release
The opening release is not correctly
connected
H check the circuit
The winding is cut
H change the opening release
H check the protection circuit
54
H
H
change the relay
check the adjustment
Released for Manufacturing
Printed on 2010/02/23
7897068EN revision : 02
spare parts
7897068EN revision : 02
To ensure device downtime is kept
to a minimum, a stock of spare
parts should be created. This
should include the following parts:
H an opening release
H a closing release
H an undervoltage release
(depending on the equipment)
H an operating mechanism
charging motor
H a gear unit
H a block of 5 auxiliary contacts +
a block of 9 auxiliary contacts
H 3 dampers
H a set of poles (depending on
the life expectancy of the set of
poles fitted to the device).
Released for Manufacturing
Printed on 2010/02/23
55
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56
Released for Manufacturing
Printed on 2010/02/23
7897068EN revision : 02
group Schneider Electric service
centers are there for:
engineering and technical
assistance
start-u
training
preventive and corrective
maintenance
adaptation work
spare parts
Call your sales representative
who will put you in touch with
your nearest group Schneider
Electric service centers.
Schneider Electric Industries SAS
89, boulevard Franklin Roosevelt
F--- 92500 Rueil--- Malmaison (France)
Tel : +33 (0)1 41 29 85 00
http://www.schneider--- electric.com
7897068EN revision : 02
As standards, specifications and designs change from time
to time, please ask for confirmation of the information given
in this publication.
Conception, rédaction: Service Documentation
Technique T&D
Released for Manufacturing
Printed on 2010/02/23
Edition du :
23/09/2008
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