Alternator Negative Sequence ITI7521

Protection of alternator against negative sequence.

This relay operates on an inverse time curve with an adjustable constant "K" such that

K = I2 t

The ITI7521 may be ordered with two different ranges for K:

8-25% for round rotor machines

13-40% for salient pole machines.

ANSI function: 46

A full brochure is available on the homepage for Static relays.

This relay operates on an inverse time curve with an adjustable constant "K" such that

K = I2 t

The ITI7521 may be ordered with two different ranges for K:

8-25% for round rotor machines

13-40% for salient pole machines.

ANSI function: 46

A full brochure is available on the homepage for Static relays.