THE ELECTRIC SUB STATION
{"Image DocumentName": "THE ELECTRIC SUB STATION", "Image ImageDescription": "4/20/2017. MAIN AND TRANSFER BUS. Any breaker can be taken out of service for maintenance. Wherever maintenance is required on any breaker, the circuit is changed over to the transfer bus and controlled through the bus coupler breaker. Potential devices may be used on the main bus for relaying. The cost is increased due to use of an extra isolator for each circuit and providing interlock for bus coupler and circuit isolators. Relaying sensitivity decreases as the same bus coupler is used to energize the concerned circuit for all the circuit breakers whenever they are taken out for maintenance. Failure of bus or any circuit breaker results in shut down of entire sub station. M L SHESHADRI. 26.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}