how to check the earth resistance value& what is the
minimum earth resistance for good earthing sysytem.
Answer Posted / bhanu
earth testers are used. and it is checked wheathe earh
resistance range is from 1-2 ohm or not.
| Is This Answer Correct ? | 83 Yes | 39 No |
Post New Answer View All Answers
Explain how you can give the overload setting to any Motor Protection Relay for a HT motors with formula and example?
WE HAVE THE DC RECTIFIER 1500A, INPUT VOLTAGE IS 3 PHASE. HOW TO CALICULATE THE LOAD? 3 PHASE SIDE EITHER dC SIDE. PLEASE SUGGEST ME
State nyquist stability criterion.
where is core-type and shell-type construction suitable for transformers ?
If I have 3 essential main switch board and 3 incoming electricity ,but only 1 genset running is that possible.
Use of switch mode power converter in real-time basis?
I have a relay contact rated at 220v dc which is supplied with a 24vdc from the panel,for it to trip the dampers(24vdc).What if the application of the relay changes so that it should work at its rated 220vdc then will it work at 24vdc supply given or any other consideration needs to be taken .....
how to wiring it with contactor and timer together
how we decide scurt (disc) of insulator with respect to kv rating
how to calculate mf when meter and cTPT detail are given
what is a bus post insulator? explain its application in a substation.
What is bridge rectifier and explain with details
A powerplant has 8 gensets operating in grid parallel mode. In one genset sometimes there is pf variation and kvar variation. The plant operates in pf mode. When this variation is observed the load is stable, voltage is also stable, freq and genset speed is also stable. How will you check the functioning of pf card. What shall be the ideal output vdc of the pfc, from there it is input to AVR?
Dear all i am kumaravel. now in chennai. my work is control and relay panel auto cad designing.up to 11kv to 400kv then question is i am improving my knowledge. i want some books name and auther are available for this C&R panel related. plese any one help me
If I have Energy Meter Ratio as 100:5 & Also I have CT Ratio as 50:5 then what will be my multiplying Factor(M.F.)