Over Current Relay

Over Current Relay are widely used to protect the type of faults in the feeders due to high or uneven voltage supply. It is a small and compact unit based on latest electronic devices. It senses the current flowing through a totally isolated circuit and energises the electromagnetic relay when the current crosses the set value.

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Detailed Description for Over Current Relay

A relay is an electrically operated switch. Many relays use an electromagnet to mechanically operate a switch, but other operating principles are also used, such as solid-state relays. Relays are used where it is necessary to control a circuit by a low-power signal, or where several circuits must be controlled by one signal.

 

Features:

·         Three phase time over current protection

·         Three phase instantaneous protection

·         Earth time over-current

·         Earth instantaneous over-current

·         Circuit breaker failure protection

·         Relay Latching

·         Digital voltmeter and ammeter

·         Built in time interval meter Stop/Start Timer (digital)

·         Through M.C.B power on/off system is in built to control relay testing

·         Current limiter and auto transfer are the continuous variables for the safety of phantom fault

·         Built in Trip status indicator and power on indicator

·         To perform the experiments the necessary patch chords and terminals are required for the relay.

·         Definite time curve for both Phase & Earth along with optional user defined curve

·         Non-Volatile memory for data retention and retrieval in the event of power failure

·         Consistent repeat accuracy

·         High Drop-off/Pick-up ratio

·         Poly carbonate front cover with external reset switch

 

 


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