Automatic Voltage Regulating Relay : EE-301EEmco Electronics’ Solid State Voltage Regulating Relay Type EE 301- E is used for regulating the secondary voltage of power transformer with on-load tap changer . The required dead-band settings are set by setting the L & R levels independently. The Time Delay setting on the front panel eliminates the relay operations for momentary fluctuations of the regulated voltage. Thus reducing the number of operations of the tap changer.
 
Features:-
LED indication for Raise UV and control Relay Operations
Lower pre signals
Digital readout for PT Supply and Dead band settings
Continuously adjustable Time delay settings
Automatic resetting after Voltage correction
Single pulse operation of Control Relays
Under voltage internal blocking