Exam 14: Phase Failure Relays

__________are used for the input to the motor protector module.

One type of relay consists of a static, current-sensitive network connected the line and a switching relay connected______ in the coil circuit of the starter.

A built-in delay of five cycles prevents nuisance dropouts caused by fluctuating line voltages.

A solid-state phase monitoring relay provides protection in the event of a(n)_______ .

Motor protector modules feature instantaneous fault protection.

A solid-state phase monitoring relay provides protection in the event of a(n)_______ .

If two phases of the supply to a three-phase induction motor are interchanged, the motor will stop.

Motor protector modules feature phase forward.

The sensing network continuously monitors the motor line currents.