How can we calculate ngr resistance for a generator and
Transformer ?
What type of transformer requires ngr ?
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Answer Posted / pavan
The value of the NGR to be inserted in the cicuit can be
calculated by the simple formula
R = V / (√3 * I)
Where V is the System Line voltage in Volts
I is the value of the fault current to be limited
In general practice the fault current is limited to the
full load rating of the largest equipment available in the
system.
| Is This Answer Correct ? | 6 Yes | 5 No |
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