If two generator running parallel, at that condition both ngr Taken in line or

If two generator running parallel, at that condition both ngr
Taken in line or taken any one ngr, but why any one or both
Ngr in line?
Ngr is use for which purpose?

Question Posted / sunil_k89

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If two generator running parallel, at that condition both ngr Taken in line or taken any one ngr, b..

Answer / ahmed

It's purpose is to allow & limit fault current within range.
If the current is 0, then this could damage the insulation
due to increase of voltage in other phases &/or won't allow
fast detection of the fault. If the neutral ground is solid,
then faut current will be disastrous for the equipment which
dictate very expensive equipment set to withstand such
faults. So partially using NGR in your case allows a path
for fault current to pass & being detected

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If two generator running parallel, at that condition both ngr Taken in line or taken any one ngr, b..

Answer / mustafa

NGR=NEUTRAL GROUNGING RESISTOR
NGR USED TO REDUCE EARTH FAULT CURRENT AND AVOID DAMAGE DUE
HIGH FAULT CURRENTS, REDUCE HORMONIC CURRENT

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If two generator running parallel, at that condition both ngr Taken in line or taken any one ngr, b..

Answer / harkamal singh

NGR Neutral ground resistance

Ngr panel is use allow to minimum range of unbalance current of Electrical alternators and add extra resistance in series of neutral link.

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