GETCO EE Practice Quiz-28

Pilot relaying schemes are used for protection of

A very large generating unit is feeding power to a grid. Which of the protection schemes is used for detection of loss of excitation of the generating unit?

The rate of rise of restriking voltage in a circuit breaker depend upon the:

An anti-pumping relay is used to:

In differential relay percentage bias is defined the ratio of:

A 3-ϕ, 33kV circuit breaker is rated 1200 A, 2000 MVA, 3s. The rated making current capacity is-

Which of the following is correct with respect to instrument current Transformer and protective current Transformer.

Find the making circuit for a circuit breaker rated at 1000 A. 3000 MVA, 66 kV, 3 sec, 3-phase, oil circuit breaker.

A reactance relay is also known as:

The time which elapses between the instant when the actuating quantity exceeds the pickup value and the instant when the relay contacts close is called: