Protective Relay Maintenance - Assessment Test

Protective Relay Maintenance - Assessment Test

Test your current knowledge of Protective Relay Maintenance through this short assessment quiz.

After completion, feel free to share this quiz with your friends or co-workers and see who scores the highest.

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The secondary of an energized current transformer should NOT be_____________.

What is the device number for a time overcurrent relay with an instantaneous unit?

The damping magnet of an induction disc relay is used for________________.

Which operating principle is used by induction disc relays?

Settings on the time dial of an induction disc relay determine the________________.

The control spring should momentarily carry ____________ while in service.

The induction disc should be ____________________.

The taps on the seal-in unit of the induction disc relay are typically_______________.

On a 50/51 relay, which contacts operate on a bolted fault?

With the time dial at 0 (zero), the disc contacts should be _________________.

The device number for an undervoltage relay is _______________.

What is adjusted on most induction disc relays to correct pickup?

What is the purpose of the restraint windings of a transformer differential relay?

If the transformer is a Delta-Wye, the differential CT's must be connected _________.

What is the device number for a differential relay?

The winding taps on a transformer differential relay is to compensate for____________.

Harmonic restraint has classically been tested using ____________________.

The operating principle generally used in directional elements is _____________.

Directionality is determined in a power system by observing __________________.

The Inst. unit of a WH. IRD ground directional overcurrent relay is ______________.