What is surger vector in 33Kv transmission feeder? We have
AC power generator of 8MW which is paralleled with 33Kv EB
grid. Some times our HT breaker gets trip off due to surge
vector problem. How to over come it? Is there any device to
observe the surge and avoid tripping?

Answer Posted / prem

you can use an M#3 relay for vector surge protection....
it is quiet useful and a little bit problamatis in programming

Is This Answer Correct ?    0 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is the formuala to calculate the rating of motor protection circuit breaker

1713


How isolater function when installed inelectrical 440V wiring

1693


Practical condition in 400KV Sub station:- Breaker(open) , isolator(open), Earthing (close) at both end e.g A & B. Now Open A Stn Earthing than Open B stn Earthing (Which have a 50MVA reactor) , AND suddenly show R,Y,B phase 704KV,573KV,118KV respectively. Que is without closing of breaker how it is possible.???? My Whats app No:07621840498 for Further Discussion. Pls experts suggest.

1577


What are the advantages and disadvantages of closed-loop control system?

699


1sq mm dc powr cable can carry how much dc currnt

1479






If i am running of spindle at 2000rpm ,but How to spindle stop at the second I am resetting the machine in CNC machines

1217


what is meant by poly phase induction motor ? how its operating by single phase or three phase?

1717


I would like to know that the fault curretn at base load and at 10% generation will be same? Fault level of BUS remain same with different generation?

1380


Please clarify, 1. Is it required to lay two runs of GI wire along with Armoured LT cable if it is laid between one big mains (63Amps TPN SDF) to small main (32A TPN SDF) with proper glanding termination? 2. If the armoured cable with proper glanding is laid from DB to CNC machine, is it required to run two runs of body earthing to the Machine from DB? 3.If the armoured cable with proper glanding is laid from Substation to Hangar, distance is approx. 100 mtrs, is it required to do earthing at shop area though the primary termination at substation is earthed through gland.

1553


Distinguish between nuclear power station with thermal power station for initial cost, starting period, cleanliness, and transportation of fuel

1521


Is there any standard guidelines/Criteria to design NGR/NGT.?

2356


How much costly in percentage wise is sandwich busduct costly than air insulated busduct of any rating?

1347


what mean by analog ,digital,numerical meters and relays? say the example?

1755


WHAT IS MEANT BY TV TERMINAL IN 500MVA TRANSFORMER?

1703


How i can calculate current of cable according to ares?

1408