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Above diagram shows how UPS works when utility power is normal and UPS has more than 100%
load. UPS converts utility power at RECTIFIER / CHARGER section to charge battery only. The power
supplied to load directly is from utility line.
2.3.3 When utility power fail but loads are normal
Above diagram shows how UPS works when utility power fails such as blackout, brownout, under
voltage, over voltage or frequency fault and UPS has less than 100% load. UPS draws backup power
from battery to invert to AC power and continuously supplies to load.
2.3.4 Use maintenance bypass switch when UPS is malfunction (option)
Above diagram shows how system works when UPS is malfunction. User is allow to temporary run
the system by turning the manual bypass switch from position A to B or at BYPASS position. All loads will
get power supplied directly from utility line. Then, contact us or our nearest service center.
