engineering recuitment MAHATRANSCO AE Electrical Mock Test Power Systems Protective Relays Electromechanical Relays
There exist three terminals in a relay called C, NO, NC, in an application, it is desired that whenever the relay is active the load must be connected be supply, otherwise the load will be disconnected from supply. Which of the following connection type in relay will provide solution to the stated problem?
1
Supply to the NC terminal and load to the C terminal
2
Supply to the C terminal and load to the NO terminal
3
Supply to the C terminal and load to the NC terminal
4
Supply to the NC terminal and load to the NO terminal
5
None of these