Page No. 158
Insulation resistance of high voltage circuit breakers is more than________________?
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The delay fuses are used for the protection of ___________?
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The time of closing the cycle, in modern circuit breakers is_____________?
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Wave trap is used to trap waves of__________________?
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Resistance grounding is used for voltage between_________________?
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The ground wire should not be smaller than No _________ copper
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Interruption of large currents by relay requires______________?
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The arc voltage produced in A.C. circuit breaker is always_____________?
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Overheating of relay contacts or contact born out is due to_______________?
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