Switch Gear The rating of a circuit breaker is generally determined on the basis of single line to ground fault current symmetrical fault current line to line fault current double line to ground fault current single line to ground fault current symmetrical fault current line to line fault current double line to ground fault current ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Breaking capacity of a circuit breaker is usually expressed in terms of Mw amperes MVA volts Mw amperes MVA volts ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Overheating of relay contacts or contact born out is due to slow making and breaking of load circuit contacts all of these foreign matter on the contact surface too low contact pressure slow making and breaking of load circuit contacts all of these foreign matter on the contact surface too low contact pressure ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Arc in a circuit breaker behaves as a capacitive reactance an inductive reactance a resistance increasing with voltage rise across the arc a resistance decreasing with voltage rise across the arc a capacitive reactance an inductive reactance a resistance increasing with voltage rise across the arc a resistance decreasing with voltage rise across the arc ANSWER DOWNLOAD EXAMIANS APP
Switch Gear HRC fuses provide best protection against short circuits open circuits overload reverse current short circuits open circuits overload reverse current ANSWER DOWNLOAD EXAMIANS APP
Switch Gear An isolator is designed to open a circuit under full load normal conditions no load None of these full load normal conditions no load None of these ANSWER DOWNLOAD EXAMIANS APP
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