what type of relay has to be used for tripping the circuit
from mains when a fault occur in a machine
Answer Posted / saadsms
if u mean by the fault ( earth fault ) u can use eart lekage
circuit breaker ( E.L.C.B )equall or mor than 30 ma current
lekage.
| Is This Answer Correct ? | 1 Yes | 1 No |
Post New Answer View All Answers
what is v/f control in VFD?
what is the maximim current drawn by 1 phase and three phase welding machine
How to check the Bushings of the transformer?
Why L.T.Cable voltage rating is 1.1kV,where as system voltage is 0.415kV?
What is the difference between the transmission line and distribution line?
why we can use 1 to 5V dc
Name of the relay of low lub oil presuure in DG sets
How will be the single line diagram of series trip HT breaker? how it works?
What are the conditions for sustained oscillator or what is backhouse criterion?
what precautions to be taken while desigining a LT,HT panel. Eg-LT panel PCC panel with ACB installed. HT panel VCB panel with VCB installed. & what is main diffrence betwn IP54 & IP55 construction of panel.
What is meant by positive and negative feedback?
what is the difference between b c d curves on mcb
at what basis/standard we have to arrive the current density of aluminium/ copper in busbar?
what are factors to be consider in electrical installation like load factor,diversity factor .....
please tell me when we start motor without load in star or delta connection whose current above condition,pl write formula