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The information to the circuit breaker under fault conditions is provided by

All of these
H.R.'only
rewirable fuse
relay

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HRC fuses provide best protection against

short circuits
open circuits
overload
reverse current

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The fuse wire, in DC circuit, is inserted in

positive circuit only
None of these
Both positive and negative circuit
negative circuit only

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A short-circuit is identified by

no current flow
voltage rise
voltage drop
heavy current flow

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A circuit breaker is rated as 1500 A, 1000 MVA, 33 kv, 3-second , 3- phase oil circuit breaker. The rated normal current is

None of these
1500/√3 A
1500 A
750 A

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A _______ is used to measure the stator % winding temperature of the generator.

thermocouple
thermometer
resistance thermometer
pyrometer

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