220-66-kv-xmer-on-line-nifes-r4-sept-08 - Gujarat Electricity Board

GETCO/E/TS – XMER01power/R4 Sept 08
vii) Impulse withstand test voltage value with :
1.2/50 microsecond full wave of
high voltage bushing in KV.
(b)
LV Bushing
i) Type of low voltage bushing and creepage :
distance in mm.
ii) Rated current :
iii)
Weight of low voltage bushing insulator in kg:
iv) Quantity of oil in one low voltage bushing :
insulator in litres
v) Dry 1 minute power frequency withstand :
and test voltage value of low voltage
bushing in KV
vi) Wet 10 second power frequency withstand :
test voltage value of low voltage
bushing in KV
vii) Impulse withstand test voltage with :
1.2/50 microsecond fall wave of low voltage
bushing in KV
(b)
NEUTRAL Bushing
i) Type of low voltage bushing and creepage :
distance in mm.
ii) Rated current :
iii)
Weight of bushing insulator in kg:
iv) Quantity of oil in one bushing :
in litres
v) Dry 1 minute power frequency withstand :
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