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4. Wiring for AC Cable
This chapter is introduce how to wiring AC IN/OUT cable to UPS in diffirence
modes, and UPS connecting with EBM。
Before wring UPS, upstream breaker and backfeed contactor shoud be
configured to avoid power backfeed to unity. And,“backfeed voltage danger”
warning lable should be added in backfeed contactor or device. Before
operating, UPS input should cut off, and check all terminals voltage to avoid
voltage dangerous. Backfeed contactor rating current should be larger than
UPS rating input current. Below figures show the wiring system of UPS input.
Single phase system
Three phase system
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