Question about Electronics - Others
I have an 800 watt inverter with 1200 watt peak output. Runs off 330 ah battery bank. New unit and noticed when I turn on LCD tv, light turns off for few seconds until tv powers up. Checked voltage meter and it shows only 186 volts. tested outlets with multi tester and found 186 volts there too. tested outlet directly on inverter and tester showed 232 volts. Tested at end of 2 foot cable that runs to selector swith for generator/inverter.and found 192 volts. Replaced cable in case of damage and still same test results. Pluged an extention cord into inverter directly and found 192-4 volts at outlet. I have had a 500 watt and 1600 watt inverter in same system(500 watt until 2 days ago)and both gave out 230 volts with no problems. Why is there 232 volts directly at inverter socket but significant loss of voltage as soon as something is plugged in to it (without any load on it)
I am thinking this a high impediance device problem and this is normal operation - the user manual of my inverter warns about use with high impediance devices - if not I am interested also...
Posted on Mar 03, 2009
The problem is in inverter display or in inverter, please call electrician and checked it. Otherwise change your inverter and buy new one of 900 VA.
Posted on Jun 03, 2015
Ignore peak, that means nothing. RMS * 1.414 = peak. RMS is the actual usage you will get, thats all. Peak doesnt mean it will supply the peak wattage for a short period of time: salesmen with no electrionics training tell people this and its a big fat lie.
See what the unit is drawing, use a clamp-on ammeter on ONE lead (not both, or it will read 0). That shoudl tell you if your device is drawing too much. You should only be able to run that device UNDER the 800 Watts (watts = volts * amps, not including loss of efficiency which might be 10% or more, and even greater when warm)
Source: I'm a maintenance electrician. Like the home-builder kind, same apprenticeship (more hours; 10,400) but also with much industrial training in PLCs, transformers, converters, inverters, motors, controls, etc.
Posted on Mar 31, 2009
Check grounding on case of inverter if it is not do so test again and what country dose a TV run on 250 a socket?
Posted on May 19, 2013
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Posted on Jan 02, 2017
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This will cause big problems. It will not work and will
likely cause both inverters to fail. Power
inverters must create the 60Hz sign wave from a crystal controlled internal
frequency driver. It's like a clock that
keeps the timing at 60Hz. 2 independent units will have slightly different
clocks both in time and frequency. This
would cause the output waveform of one unit to be out of phase with the
second. If they are out of phase, they
will look like loads to each other and likely fail. It would be possible if the inverters had a
way to link their clocks or use only one clock. This could be designed in
however I have never seen this feature. You
can hook up multiple inverters to the low voltage side (12VDC), just don't hookup
their 120VAC output side. Hope this
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