Answer Posted / sennapparajan
First question itself wrong.MCB contains small relay
mechanism and also a coil.when current flow through coil
beyong the limit the coil will act the mechanish and trips.
| Is This Answer Correct ? | 12 Yes | 4 No |
Post New Answer View All Answers
how to calculate the earth mat design in 132 kv substation yard ????
What is the formula formula for Busbar sizing and what are the things to be consider for Busbar Calculation?
what is The difference between national electrical code and I.S.Code (electrical) and what is the value of NEC in electrical engineering field
what is the max. acceptable leakage current in 33kv bus bar
A 3-phase IM is supplied from 50 Hz system. It runs at speed of 1440 rpm and slip equal to 4 %. Calculate number of pole pairs. A 1 B 6 C 2 D 3
Please, if 1kw is equal to 1.25kva; how then do I know how many kva in 7.5kw?
Define stepper motor. What is the use of stepper motor?
what is the difference between oil surge relay and buchholz relay.
1)what is the function of a frequency inverter? 2)If a few frequency inverter are connected onto a device network,what are the two setting that will ensure the frequency inverter work properly on the network. 3)whats is the name of the input sensor for weigher? 4)How to confirm that the load cellis faulty? 5)Describe briefly the steps to validate that the weigher is working properly? 6)Describe the procedure to validate the flowmeter accuracy? 7)Describe briefly the steps to validate that the tempreture sensor/transformer is working properly. 8)what is the adjustment that need to be done when you are calibrating the temperature transmitter ? 9)what are the safety measures to be taken before disconnecting motor for rewinding. 10)whats is the synchronous speed in rpm of typical 4pole 50hz motor? 11)whats is the formula for kw, ohm's law 12)if a 3phase motor is rated 3kw,415vac,what is it's rated ampere?
Why do power lines not short out when they fall into water?
what is the minimum recommended leakage current of an earthed cable connected to the body or skid of an alternator
How much kv gas generator is needed to run 2 hp and 1 hp airconditioners, plus a refrigerator and 4 Tvs
why occ characteristics of generator is also called as magnatization characteristics ?
How to apply 'c' license and also explain what is difference between 'c' and 'b'license.i am also working in one of the private company.i have finished my diploma in 2014 .i have already finished in ITI electrician course.....
what is deffrence between squirral cage and wound rotor in IM?