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Electric Power Line De-energization Hot backup Circuit

Electric Power Line De-energization Hot backup Circuit

In normal terms Relay Р3 Energize Relay Р2. (pic.1). Relay Р2 close contacts of Basic Electric Power Line Fa, Fb, Fc.
Basic Line Fa, Fb, Fc goes to the user A, B, C.

Pic.1. Electric Power Line De-energization Hot backup Circuit.

For example Power disappears in a basic Electric Power Line. Relay Р3 start to energize Relay Р1. Relay Р2 switch off basic Electric Power Line Fa, Fb, Fc. And Relay Р1 switch on Reserve Electric Power Line F'a, F'b, F'c.

added 23.07.07 19:10:35 | looked over 11232 times