Question about MGE Computers & Internet
I have a GE LP33, 30KVA UPS. Here is the situation (problem), -Mains power goes off, generator failed to start, -UPS takes over the load for its backup time of 15 minutes, -power still not back, -UPS shuts down because its batteries are drained, -mains power is back, -UPS starts but inverter fails to start giving and alarm "inverter cannot be started. I was once able to clear this alarm and restart the inverter by completely shutting down the UPS; but this is not acceptable since it interrupts power to the load. Can anybody help figure out why this is happening? Is there any way to clear the alarm without completely shutting down the UPS? Your help is highly appreciated. Yared
Did you try to give the UPS some time to recharge the batteries?
Seems like the batteries have reached their cut-off voltage and are not supplying enough voltage to the inverter.
Normally the dc boos circuit of the UPS will supply voltage to the DC BUS so maybe the problem can be found in the dc boost circuit or BUS if recharging the batteries is not helping.
Let me know.
Posted on Feb 02, 2013
I have a GE Lp33 30KVA ups. I just renew the batteries and the problem is when the main power goes off all the loads goes off as well.As if the ups is not giving any power.But when main is present everything stays on.I can read the load output current per phase and so on.This indicates the ups is working normally when main power in on. Any suggestion?
Posted on Feb 27, 2014
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Posted on Jan 02, 2017
SOURCE: Problem with Compaq UPS T1000h
I had a problem like this one, check the voltage from the generator , if the output from the generator is to high (over 240 Volts european standard voltage), the voltage protection (VDR resistors ) will brake the fuse to protect your UPS.
and also check the frequency of the generator, it has to be very stabile around 50HZ (european standard frequency)
Posted on Sep 20, 2009
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