Interested to Buy Any Domain ? << Click Here >> for more details...
what type of protection and safety req. in the 220kv
substaion and area around the substation
- 2 Answers
- 9635 Views
- I also Faced
- E-Mail Answers
Answer Posted / atul pradhan
Protection:-
1)Distance prot. relay
2)local breaker back up LBB relay
3)differential prot. relay
4)pole discripency relay
5)trip ckt supervision of sf6 gas relay
6)air pressure monitoring relay
Safety precautions:-
1)remove all vegetation inside yard
2)proper earhing to fencing & gate
3)proper watering & checking of earth pits
4)periodical cleaning of all C.T.,P.T.,etc insulators
5)while opening or closing off load isolators always wears
H.T. gloves
6)while closing isolator ensure that all 3 poles fixed
properly
7)monitoring the leakage current of lightening arrestors
| Is This Answer Correct ? | 9 Yes | 0 No |
Post New Answer View All Answers
Is it possible to obtain 480v or 550v in single phase output by giving the input to 230v to a single phase torodial type transformer without using a stepup transformer?
How short circuit MVA(Fault MVA) in a power system calculated for calculating number of earth plates ?
what is high and low cut off voltage of BB and DG at SPS????????
What is meant by Low Resistance Cable and High Resistance Cable.
State and define norton’s theorem?
at what basis/standard we have to arrive the current density of aluminium/ copper in busbar?
surge tank, hrc fuse, earthing transformer, firm power objective type
what are the accessories need to be added while doing estimation for the following: 1.MCCB 2.MCB 3.ACB
Differentiate between kirchhoff’s first law and kirchhoff’s second law?
What is a DC series motor?
How to calculate the Harmonics losses in terms of cost/unit.
what is effect of 5amp fuse on 2mva pry protection of transformer
How we can calculate the Amps for the cable Ex:- For 1sqmm wire how many amps we can draw (calculation)
Can any one know what are the symbols at the down (below) the analog ammeter??? there are 4 symbols which are they ?????
if 3400kw slipring motor rotor shorting done and motor started on mv drive ,what will be the rotor shoring current
