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QUESTIONS

GETCO Exam Paper (22-07-2015)
During the insulation co-ordination in the sub station, the lowest insulation strength is at

circuit breaker
bus bar
CTs and PTs
transformer

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GETCO Exam Paper (22-07-2015)
Current chopping phenomenon is related to

resistance switching
small inductive current
capacitance switching
asymmetrical current

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GETCO Exam Paper (22-07-2015)
The breaking capacity of a CB is usually expressed interms of

MVA
amperes
volts
MW

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GETCO Exam Paper (22-07-2015)
Merz-Price protection is employed for protection of

motor
alternators
circuit breaker
transmission lines

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GETCO Exam Paper (22-07-2015)
In sub stations for making and breaking of load current

circuit breakers are used
load interrupter switches are used
isolators are used
relays are used

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