112
—
7. Operation of the switchgear
Power cable test - Maximum applied voltage
Rated voltage of the switchgear Ur
[kV] 12 17.5 24
Rated power-frequency cable test voltage, max.
duration 1 min Uct (AC)
[kV] 22.4 30.4 40
Rated DC cable test voltage, max. Duration 15 min Uct
(DC)
[kV] 36 36 48
Rated AC cable test voltage applicable for VLF testing
at 0.1 Hz, max. duration 60 min Uct (AC - VLF)
[kVrms] 19.2 26.1 36
Note: The test circuit is designed for a maximum applied voltage in the table
Figure 183: Figure 184:
Figure 185:
Shutters lifting truck
with all actuating elements
Modified shutters lifting truck after
demounting of bottom actuating elements
Modified shutters lifting truck
after demounting of bottom actuating
elements inserted in CB compartment
1
2
1 Top actuating element
- for cable connection shutter
2 Lower actuating element
- for busbars shutter
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