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7.5 Tests on interlocks
7.5.1 Testing of interlock conditions
(See also sections 3.4, 6.4 to 6.6 )
1. Closing of the series connected circuit-breaker or
switch-disconnector must only be possible when the
I
S
-limiter
TM
switch is in the defined inserted position and
the I
S
-limiter
TM
is ready to operate and has not tripped.
Check these conditions individually as follows:
• With the I
S
-limiter
TM
switch inserted and the trip
indicator relays reseted, it must only be possible to
close the circuit-breaker with the tripping device
switched ON (the "not ready" signal disappears).
(All other conditions necessary for switch ON must
be fulfilled.)
• It must not be possible to close the circuit-breaker
with the main door of the panel is in open position
2. When the I
S
-limiter
TM
trips, the series connected circuit-
breaker or switch-disconnector must receive opening
commands.
Check this condition as follows:
• Effect a trip using test plug QT3a or test equipment
QT2b with the I
S
-limiter
TM
inserts removed
3. Any additional interlocks fitted and listed in the order
documentation are to be tested separately.
7.6 Spare parts & auxiliary
materials
7.6.1 Spare parts
The list of spare parts is available on request.
The following details are required when spare parts are
ordered:
• Serial number of the switchboard or I
S
-limiter
TM
.
Also required for:
- Power unit, complete
- Tripping unit (for one phase)
• I
S
-limiter
TM
insert:
- Serial number
- Type of I
S
-limiter
TM
insert and integrated fuse
For the procurement of further spare parts, please contact
ABB India Ltd. Or on numbers mentioned on service card
on panel.
7.6.2 Auxiliary materials
Part No. (order ref.)
Lubricant:
• Isoflex Topas NB 52, GCE0007249P0100
Cleansers:
• ETHANOL F25M, (for general cleaning)
• BA 1002/E GCEA901002P0102
• Touch-up Paint: Standard color RAL 7035
- 1kg box: GCE9014060R0103
- Spray tin: GCE0007895P0100
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