GETCO Exam Paper (11-06-2017)
Burden of a protective relay is the power

absorbed by the circuit of relay
required to operate the circuit breaker
none
developed by the relay circuit

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GETCO Exam Paper (11-06-2017)
In a 3-phase, 4-wire cable the cross sectional area of neutral conductor is

half of the area of phase conductor
equal to the area of phase conductor
double the area of phase conductor
1.5 times the area of phase conductor

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