I have 800 Amps MG Fix type breaker It is in on line & it
has been given only UV (under voltage)coil connection for
tripping purpose.now it is not working properly means its
getting tripp so how can i replace it or how can i rectify
the problem without destrubing my load??????????

Answer Posted / sandeep khaire

Short the UV relay contacts used in wiring. Then replace
the UV relay & its contacts.

Is This Answer Correct ?    3 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

why dimmerstate always connected in star connection? what will happen if it connected in delta?

1575


How to decide and select the different earthing wire size for the different types of earthing

1816


Is it possible to operate a synchronous 2-poles turbogenerator with a still-in-place faulted bar but electrically disconnected ???? If yes, should I act on the other phases as well ???

1451


How do I calculate a WTI CT ofa 1250kVA 6600/400V transformer

1315


Dear Mr B C pal...Can you plz. put some light on principle of operation of Z-Ct in conjunction to its use with 1Cx1000Sqmm HT Cables & Directional Ground Fault / Over Voltage Relays...Regd..Parag v K 9899115632

2255






In the formula : Knee point voltage = Burden X alf / class, Please inform what is alf? regards Shashidhar M.R.

3398


compare between starting charactristics of synchronous motor with those of 3Q Squirrel cage induction motor

1278


What is an alternator impedance value?

2409


can anyone explain 11kV 3core cable megger,hi pot test procedure with connection details?

2802


i have install 750 kva distribution transformer at my site and want to do neutral earthing. what calculations should i follow to determine earthing conductor material and size?

1585


What is the role of Dedicated earthing in UPS System?

2640


What is ignition module of a CAT Gas Genset G-3508 Engine, Alternator SR4B Series. HOw its checked for correct functioning.Is it repiarable or replacable?

1460


WE ARE PLACE A NEW 75 KW MOTOR FOR JPF.IT IS CONNECTED IN M.C.C. WHEN WE ARE STARTING M.C.C.INCOMER IS TRIPPED.THEN WE ARE CONNECTED IN P.C.C WITH A MM30 RELAY PROTECTION THEN WE ARE STARTED MOTOR WILL RUN SMOOTHLY.

1634


when elecromagnatic waves are propogated in a wave guide?

1498


In the ACB breaker capacity is 2000Amp but this each phase taken 1250 But total beldibg load is 600amp or 700amp watt is the problem

1512