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PCS100 UPS-I User Manual
9.7 Neutral Current
The PCS100 UPS-I transformer has a partially rated neutral which should not exceed 5% of the UPS-I rated current.
Neutral current may be caused by load imbalance or utility voltage imbalance.
The PCS100 UPS-I will generate Event Code 12 when the neutral current exceeds 5% of the rated current. The
Coupling Transformer circuit breaker will trip if the neutral current exceeds 10% of the rated current.
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