ABB GSC 200, Installation And Maintenance Manual

Page: 43 / 56

Installation and maintenance guide
1ZSC000563-AAX EN, REV. A, 2019-03-21
43
Nominal capacitance
The capacitance (C
2
) depends on the transformer, and it is not possible to give a nominal value that is valid
for all service conditions. Thus, it is important to measure and record the capacitance (C
2
) for future
reference, such as repairs, service etc.
Type Space for CT = 600 mm
C
1
C
2
(test tap)
GSC 200 617 <5000
GSC 300 632 <5000
GSC 300E 821 <5000
GSC 400 612 <5000
GSC 450S 648 <5000
GSC 450E 850 <5000
GSC 500 799 <5000
GSC 500E 915 <5000
Procedure
1. De-energize the transformer.
2.
Disconnect the external connections from the outer terminal of the bushing.
3. Remove the cover (2).
Part Article number
Cover 2769 522-M
O-ring 1ZSC00442-CAK
G004942
4.
Connect the measuring equipment.
1. Connect the low voltage cable to the stud (1).
2. Connect the high voltage cable to the outer
terminal.
3. Connect the ground cable to the bushing
flange.
G004944