Interested to Buy Any Domain ? << Click Here >> for more details...
How would we calculate the no of earthing pits required
for motor /panel
- 5 Answers
- 24952 Views
- APGenco, National Engineering Industries, Practical Viva Questions, I also Faced
- E-Mail Answers
Answer Posted / babloo
the no.of earth pits is usually calculated considering the
fault current, for suppose if the short ckt occurs b/w the
2 phases the fault current will be 3times to the normal
current. For example A 55KW motor carrying the current of
80A during normal running , when the short ckt occurs the
fault current has to dissipate through the earth, so the
earth must be around 25 X 3mm strip.
| Is This Answer Correct ? | 2 Yes | 2 No |
Post New Answer View All Answers
in ACB breaker requireding 3200Amps. buscoupler getting OFF mode and again it reset and getting normal position give me a required answer?
please give me all the Alarm .Trip ,Safety Relays & Conditions of UPS Systems mail me on ashokbabunhce@gmail.com
WHAT WOULD BE THE FORMULA OF WIRE GAUGE FOR A FULL LOAD CURRENT
why do we not use equivalent voltage source in negative sequence equivalent ckt.
What happens when ac supply is given as excitation voltage instead of dc supply
what are the different methods for the starting of a synchronous motor.
Z transform is use when system is not a) converges b) diverges
Yazaki india pvt ltd interview questions qurey related
what is stper motor
What is the rating factor for copper cable ( Specific value according to the type of laying ) & the voltage drop?
How to choose the vector group for the step up and step down transformers??? Tell me the which vector group is suitable for step up and step down transformers and whats the reason to choose and whats the benefits???
why need to be maintain power factor for industrial customer?
When we have earthing mesh or underground earthing network in industrial plants, weather we have NT-S or NT-C-S kind of earthing system, so eventually weather we must use 4 or 5 wire in 400 volt level (For example 3×150+70 mm2 or 5×150 mm2) in this connection I would like to know exactly the paragraph of IEC or IEEE number
Dear sir my name Ankit i m Diploma holder present working in Welspun Corp ltd Anjar as Asst.engg (salary 14400/month ctc) i Would like to change my company also i have selected in ford India pvt ltd Sanand as trainee Tech with salary 12000/month so please suggest me for changing my job hope for *ve response
how many stairs have you climbed while you were coming
