An auxiliary relay is a relay that assists another relay or device in performing an action. It does this when its operating circuit is opened or closed. These relays are used in nearly all electronic devices to assist them in functioning correctly. Essentially, it is as simple as an action done to the relay causing a circuit to be opened — completed — or closed and not allow power to travel through it.

• DC Supervision Relay.

• Multiplication Auxiliary Relay.

• Trip Circuit Supervision Relay.

• Control Auxiliary Relay.

Tests done on the Auxiliary Relay

• Pick up and Drop off Voltage and Current.

• Operating and Resetting Time Delay.

• Burden.

Using SVERKER 780 Test Kit