An erratic power supply with low voltage particularly at night exists in my area (in India).The UPS tag tells a 220v/50Hz which I know not what. It does not tell about any amp marking. Can I use a voltage stabilizer for that ? If so of what kind or type?
Electrical – How to stabilize power to the PC from an erratic power supply
electrical
Related Solutions
Get a 20A to 15A converter cable, like this one: http://www.amazon.com/Conntek-1F515520-1-Foot-15-Amp-Adapter/dp/B00439KIF6
It is perfectly safe to plug a 20A device in to a 15A receptacle on a 15A breaker. If your device draws more than 15A, the breaker will trip. You can reset the breaker and try again, with a lower load. If you never exceed 15A draw, you'll be fine.
15A is a lot for a computer. You can use a Kill-A-Watt to measure your actual load, if you're curious.
The output appears to be ungrounded or center grounded. It could be a transformer intended for outdoor tools in UK. If there is also a safety ground 3 wire plug, it could be coupling some of the harmonic current from the switch mode active power supply (which should be flowing equally on hot and neutral) on the safety ground. That would be unbalanced current and trip the GFCI. The smaller transformer could be wired with normal grounding or it may have a plastic case. Adding filtering to the mains input could fix the GFCI issue.
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Best Answer
You could use a voltage stabilizer, but it makes little sense to do so.
Almost all UPSs are specifically designed to work with dirty power sources. The UPS working range is probably as good, if not better, than any comparable stabilizer in the same power range and price class.
It would be more cost effective to replace the UPS with a model which has a wider input range than to add a stabilizer. This also means there are half as many things to fail.