what need of NGR(neutral grounding registor)? What it works?

Answer Posted / sivashanmugam

neutral grounding resistor as like that of an earth ... in
generating station most probably transformer is an star to
delta connection generator side delta to star connection i
the transformer side grounding is not possible in case of
that ... one earthing transformer will be palced its an
zigzag winding for grounding the transformer side earth
bcos its an delta conn ... for neutral grounding resistor
ter will be an ngr panel in generator side unequal of
currents in phases grounded in ngr .... am not sure in this
answer if u peoples refer further mail me thank you.....

Is This Answer Correct ?    2 Yes 3 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Why front mounted CT polarities are always towards breaker?

1529


What is the name of the winding to which supply is given?

705


Post possible questions for Power Factor Panel FAT / SAT

982


what is the difference between RMS & TRUE RMS VOLTAGE

2411


What is meant by full pitched winding?

645






If a rotary UPS is in line through grid power; What would be the impact on Power Factor if the load through rotary ups is 25% , 50% , 75% & 100%. Will the power factor reduce with less load?

1427


I am interested to know what does 15 KVA DG set actually means? If I dont know the DG rating, is it possible to identify KW by simply knowing the diesel consumption?

1625


what is the formula of starting current of 3phase and 1 phase motor???

1589


Advantages of using generator circuit breaker (GCB) scheme in a power station ?

4754


i have flexible wire. size of conductors is 0.190 mm & no.of conductors are 48. then size of wire comes 1.37 sqmm instead of 1.5 sqmm . the what is tolerance for this size.

1332


what is deffrence between squirral cage and wound rotor in IM?

1546


How to convert a two phase power into a three phase power in induction machine?

1360


what is mean by dual digital protection in the relay field?

1483


how to calculation increase capacitor,increase power factor for three phase.

1649


Define resonant frequency?

732