On what basis no of earth pits are to be decided either for
transformers or for equipment?
Answer Posted / sathihsa
earth pits for tr depends on kva rating and fault current
use to carry.........
| Is This Answer Correct ? | 9 Yes | 17 No |
Post New Answer View All Answers
how we will deside the high voltage value
dc supply given to dc generator winding.how is possible? my knowledge is saying the winding will burn. please reply.
How much no load current of synchronous motor
defination of transistor controlled series capacitor
What is the difference between Static and servo controlled voltage stablizer?
Why does inductive loads consume KVARs?
how to calculate the earth mat design in 132 kv substation yard ????
I have c license but I don't know eligibility of Max Kilo Volts under the electrical licensing board.
Is it possible to use a S1 duty class motor for crane application (S4)? If not, why?
I need the recommended size for a 3 phase transformer at 13.8 KV Primary and connected loads of 3000 kVA at 4200 volts and 2375 kVA @ 480 volts AC.
sir please send me techinical questions for junior engineer posting in bangalore railway i am diploma holder
For a spring controlled governer the relation F = ar+b (F is the controlling force, r is the radius of rotation a and b are constants), indicates that the governer is
Sir,In our company there are 3 caterpillar make(capacity:(1) 3.3KV,2.5MW(2)3.3KV,2.5MW & (3)3.3KV,1.9MW) & 1 deutz make (capacity:11KV,3.8MW)gas engines utilised,all are running in paralell. There are three transformer utilised,(1) 6.25MVA,3.3KV/22KV,Impedence voltage:6.7% used for two generator,both are 2.5MW(2)5.5MVA,3.3KV/22KV,Impedence voltage:7.2% used for one generator of 2.5MW & (3) 5.5MVA,11KV/22KV,Impedence voltage:7.8% used for one generator of 2.5MW.all generator breakers capacity of 1250Amps. Sir,I want the details of fault level calculation of generator,transformer individually & for whole system. If you require any information from me.feel free for contact me sir.pl.send the answer of my question as the earliest as possible.
I FINISHED MY B.TECH IN EEE . I AM IN NEED OF A GOOD TRAINING INSTITUTE TO DO COURSES .. CAN ANYONE SUGGEST GOOD CENTRES IN TAMILNADU ,BANGALORE ,OTHER AREAS???????
Main advantage of auto transformer over two windings transformer is that A it needs no cooling B it uses only one winding C core losses are reduced D it has simple construction