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This is a 3-phase UPS. The Voltages for the three phases are 243V, 251V & 245V but the input inside is showing 299V.
It gives a beep and gives a message : "voltage out of range".
Please help

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A 3 ph ups normally can work upto 450 volts because the normally its the transmisson range of voltage
220 to 250 is the voltage range of normal 1 ph line so check for proper line voltage or load voltage

Posted on Nov 13, 2007

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