Answer / siddu

NGR Means Neutral Grounding Resistor, used for higher
rating of transformer because to allow the heavy fault
current through it, during the fault so -----NGR resistane
value so less Ex. 9.5 Ohms

low resistance allow the fault current easily

Answer / gunasekaran

NGR to limit the fault current

Answer / raviteja nowduru

NGR stands for neutral grounding resistor.it connected
between neutral point and ground.it is a type of grounding
to limit the current not to eliminate fault currents.

Answer / meka sekhar

NGR means neutral grounding resistors normally connected in
neutral circuit of transformer & generator to limit the
earth fault current. After installing NGR in neutral
circuit, earth fault current will be in the range of few
amps i.e. 5A t0 300 A.

Actually I have a doubt on neutral and earth.we use Ac power without taking neutral by connecting to earth,but at that time does it affects on efficiency of any electrical components or no? If yes how?

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