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How to protect the mm30 relay?

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Question added by Devvrat Dwivedi Dev , Electrical Engineer Power Plant , Vision Sponge Iron Pvt Ltd ( Power Plant Division)
Date Posted: 2015/10/18
Himadri Roy
by Himadri Roy , MANAGER ELECTRICAL , STEAG ENERGY SERVICES

1) Prevent dust / water or any foreign material ingress inside MM- relay.

2) There should not be any loose connection in connector terminal, small loose can cause arc/spark , which leads overheating/ over-burden of the relay.

3) MM-is a microprocessor / Electronic relay. So increase in  surrounding temperature may cause fetal damage.

4)There should not be any short ckt or open-ckt of CT in Relay terminal cable.Which may burn the relay / relay cards, etc........

5) In case of re-connection, assure proper connection.

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