What should be the minimum and maximum ohmic value for
earthing?
- 2 Answers
- 4738 Views
- I also Faced
- E-Mail Answers
Answer Posted / p.r.gowri sankar
Earthing Resistance between the phase to earth is must be
below the value is 0.5ohms.
| Is This Answer Correct ? | 4 Yes | 2 No |
Post New Answer View All Answers
What is the current carrying capacity of 0SWG,3SWG,10 & 12 SWG solid bare overhead copper conductors?
In motors how many types of cooling systems were used?
How to measure power in 2 or 4 or n phase circuit? Please give me a formula.
what is star delta starter? how it works? give its control and power diagram.
Which level of the Transformer oil got dielectric strengh? And why?
what is the difference between neutral and earth
i am going to give the JSEB,RANCHI exam for power plant,so i need some samples of papers related to that,so please send me these papers by my mail id.
What is the different between conventional MCC and intelligent MCC? Common controller or controller for each bucket
with help of neat sketch explain principle of TIG welding process
What is difference between start imitation and start interlock for 3 phase motor protection ?
what mean by analog ,digital,numerical meters and relays? say the example?
I have an existing old MCCB. ABB Model SACE, the rating are: Ue = 660 volts, Iu =1250 Amps, 3 poles, Ith (max) =800 amps at 45 deg C. I need a circuit breaker for my 3 phase motors, 380 volts 60 hz. the supplier required the minimum ampacity of the breaker to be 911 amps. can i use this breaker with rating of Iu =1250 amps but Ith = 800amps maximum?
how is the testing of an REF relay? what are the test REF circuit having?
Define open loop control system.
1. A bomber drops a bomb from an aircraft flying at 2000 km/hr. at an altitude of 7km. The speed at which the bomb will strike the earth would be
