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Switch Gear

Switch Gear
A fuse should have

All of these
low cost
low melting point
high conductivity

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Switch Gear
Which of the following circuit breakers is prefered for EHT applications ?

air break circuit breaker
low oil circuit breaker
bulk oil circuit breaker
Sf6 CB

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Switch Gear
Minimum arcing voltage will be least in case of

silver
tungsten
carbon
graphite

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Switch Gear
If the fault occurs near the impedance relay, the V/ I ratio will be

None of these
Lower than that of if fault occurs away from the relay
higher than that of if fault occurs away from the relay
constant for all distances

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Switch Gear
In Railway applications ______ circuit breaker is used.

SFe
bulk oil
minimum oil
air break

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Switch Gear
Outdoor switchgear is generally used for voltage beyond

132 kV
66 kV
11 kV
33 kV

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