To reduce short circuit fault currents are used_____________?

Related Mcqs:

Which of the following medium is employed for extinction of arc in air circuit breaker?

A. Water B. Oil C. Air D. SF6...

Burden of a protective relay is the power______________?

A. required to operate the circuit breaker B. absorbed by the circuit of relay C. developed by the relay circuit D. none of the above...

For the protection of power station buildings against direct strokes the requirements are___________?

A. interception B. interception and conduction C. interception, conduction and dissipation D. interception, conduction, dissipation and reflection E. none of the above...

Arc in a circuit breaker is interrupted at___________?

A. zero current B. maximum current C. minimum voltage D. maximum voltage...

The material used for fuse must have_____________?

A. low melting point and high specific resistance B. low melting point and -low specific resistance C. high melting point and low specific resistance D. low melting point and any specific resistance...