What is the definition of ANSI 74 - Trip/closing circuit supervision? | Schneider Electric South Africa

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What is the definition of ANSI 74 - Trip/closing circuit supervision?

To detect trip circuit and closing circuit failures, Sepam monitors:

shunt trip coil connection
closing coil connection
matching of breaking device open/closed position contacts
execution of breaking device open and close orders.

The trip and closing circuits are only supervised when connected as shown in attached photo.

Released for: Schneider Electric South Africa

Attachment(s)

ANSI 74.PNG.png

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Published on:2018/11/13Last Modified on:2025/07/10