Answer / murugan

Require: 2 feeder 1 buscoupler
if fault occurs in any one transformer buscoupler sense using synchonise checking relay(same voltage, same freq, same phase checking) automatically closes and transfer the load of faulty feeder to healthy feeder.

Answer / hpl

autochangeover scheme applicable for 2 transformer
feeder/feeder and one buscoupler or 3 incomer 1
buscoupler.when one incomer will down(only under
voltage).buscoupler will come automatically.voltage sensing
relay is required

Answer / phanidra putta

For Auto Changeover Scheme do refer the below link.
https://electengmaterials.wordpress.com/2019/01/17/auto-changeover-scheme/

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