What is the difference between Relay and Contactor
Answer Posted / a.narayanan.
RELAY IS AN ELECTRONIC OR ELECTRO MECHANIC DEVICE.IT CAN
OPERATE NORMAL OR ABNORMAL CONDITION TO TRIP THE C.B UNDER
PRESET VALUES IN ITSELF.
BUT CONTACTOR OPERATION NOT LIKE RELAY OPERATION.
IT CAN OPERATE ONLY BY CONTROL VOLTAGE IN SOME OF THE CIRCUIT.
Is This Answer Correct ? | 16 Yes | 19 No |
Post New Answer View All Answers
If 24 KVA AVR having Input voltage 200-400v, Output voltage 415+-1%, what will be the voltage if Load is 13A.
Difference between rating factor of cable and derating factor of cable?
What are the main faults of DC generators?
power transmission pole used one support , that only for support or earthing
Why it is necessary to isolate fire fighting when you are taking shutdown for lv board.
Draw the single line diagram of the power station?
what is the mechanical safety of DG ?
How can we findout the maximum efficiancy of Transformer? At which load?
What is milivolt dop test in Busducts? What is its significance & procedure to do the test?
why normally Generator rating are between 11Kv to 22Kv?
prove that power consumed in 3 phase delta system is 3 times as compared to 3 phase star system
What is industrial plc
I have 440v power coming to facility,( not being used ) can I buy large generator, (gas) to sell power back to electrical co.
what is the difference between c power and U power acb breaker
What is the implications when 600 hp motor is started when the unit is running with Transformer of capacity 1500 KVA and DG set of 1000kva