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Advantages and Disadvantages of Different Types of Neutral ...

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HIGH RESISTANCE GROUNDING 2.4KV SYSTEM<br />

CALCULATION OF SYSTEM CHARGING CURRENT<br />

SUMMARY OF CAPACITIVE FAULT CURRENT VALUES<br />

3MVA Transformer = .15A.<br />

FDR#1 = .013 + .012 = .025A.<br />

#2 = .06 + .012 =.072A.<br />

#3 =.06 + .012 =.072A<br />

#4 =.02 + .012 =.032A<br />

#5 =.02 + .012 =.032A<br />

#6 =.01 + .012 =.022A<br />

SURGE CAPACITORS = .783A<br />

1.188 AMPS<br />

CHOSE GROUNDING RESISTOR OF 5 AMPS<br />

NOTE: SURGE CAPACITORS ACCOUNT FOR 75% OF THE TOTAL<br />

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