how to check the earth resistance value& what is the
minimum earth resistance for good earthing sysytem.
- 33 Answers
- 144610 Views
- Brookfield, BSNL, DMRC, Epoch, KPTCL, Polycab, Power Control, SIEA, Siemens, Wipro, I also Faced
- E-Mail Answers
Answer Posted / aruna devi
By using earth megger .It should be less than 2ohm.
| Is This Answer Correct ? | 227 Yes | 72 No |
Post New Answer View All Answers
Why do we need a separate control desk & PLC control panel in Boiler plant or coal handling plant? Can we provide cost effective Control desk cum PLC panel. Is there is an specific need for control desk.. kindly advice.
How to select circuit breakers rating eg. if i select a circuit breakers of capacity 40 amps DC with operating voltage 28 volts and if i what to use same circuit breakers for 300 Volts DC application what is the current rating of this circuit breakers.
What is the BS(British Standard)code for 11kv motor
we have earthmat at 110KV substation.we would like to take earth resistance.b some says that by connecting earth megger terminals (C1,P1) at middile point of earthmat (at riser) will cause voltage gradient at other earthmat nods and dont get exat earth resistance.when connecting at end nods will get exat value . is it correct .please explain
what is the differences between microprocessor and general purpose computer
1600 KVA ka transformer hi aghar lt side par 800A aur voltage 420 ho to HT side ki cable ki rating keya ho gi?
how much leakage current is allowed in MC61A L&T make relay?
Please define ohm’s law for a.c (alternating current)?
Please send 110 kv sb station full single line drawing(sld)
How many Zones can be in Conventional type fire alarm system & how can we detect the fire in Conv. type FAS?
please send privious years question papers of jindal steel and power ltd.My e mail id is rajanikant.sngh@gmail.com
Define what is difference between fuse and breaker?
how hazordious area is classified at an oil & gas plant and categorise suitable class of electric equipment in that area like induction motors, LCS, Lighting Fixtures Fluerescent/Flood lights Mercury& sodium lights, J.Bs, Power Cables etc
why lightning arrestor are made in two stack of insulator but why not cvt
What are IR values and what it should be for coil and for insulator
