Does Supplying only Phase/Live from Inverter or UPS Work?



Yes if power inverter or UPS supports that. Often power inverters made for supplying long backup to multiple household and office appliances are designed to complete circuit with input neutral as well. So in case you do not connect output neutral and just supply phase from output to required appliances and devices, the circuit should complete with input neutral if power cable of inverter or UPS is plugged into circuit board.

Before going for this, you should check whether your power inverter or UPS supports this kind of ‘phase only’ wiring. To test and confirm it, connect a bulb with output phase/live and input neutral while inverter or UPS is running on backup mode. If bulb glows it does support ‘phase only’ wiring. If it doesn’t then your power backup device is designed to completely isolate neutral when it shifts to backup mode. Go for complete wiring including both phase and neutral wires supplied to lights, fans and electronic devices. The other solution is to connect output neutral with a wire to mains or distribution board neutral. That will complete the circuit and you won’t need to wire neutral for every appliance or device you are going to connect with your power inverter or UPS.



This explains how common or non-isolated neutral of power inverter or UPS works. Input and Output neutrals always remain connected and only phase/live is switched over from power supply to backup mode with a relay.

In case of running multiple computers, servers and other sensitive electronic devices, go for complete wiring that is phase and neutral must be supplied from output. You may use extension cables for that purpose.




Related Posts

How to Connect Batteries in Parallel with Power Inverter or UPS Connect multiple batteries in parallel with your power inverter or UPS to increase its backup. If you own a single battery inverter, you can connect m...
How to Connect Batteries in Series with Power Inverter or UPS Connecting batteries in series is required if power inverter, solar hybrid inverter or UPS requires a multiply of battery voltage to work. For example...
How to Stop and Protect Battery Terminals from Corrosion - Apply grease or petroleum jelly to battery terminals. - Use tin, silver or aluminum plated copper terminals. - Fix alternator/generator causing ov...
What Causes Battery Terminals Corrosion in Car Major Causes: - Leaking electrolyte from cracks or loose joints. - Fumes of acid escaping battery through loose joints or vents. - Bad alternator/g...
How to Fix Electric Shock Problem or Tingling while Charging and Using Phone You might have observed that when you touch your phone, tablet or laptop with metallic body, you get a tingly feeling or get a minor electric shock if...
How to Extend UPS & Power Inverter Backup People use power backup devices to cope with power outages that are caused by either bad weathers or scheduled load shedding. UPS (uninterrupted power...
Solutions for UPS and Power Inverter Problems Problems related to uninterruptible power supply and Power Inverter have been discussed here with possible remedies. If you have any UPS or Power Inve...
Functions of Different Power Inverter/UPS Buttons, Switches Power Inverter is a device used to invert batteries direct current into alternating current for providing backup to different appliances when main ele...

Add a Comment

Your email address will not be published. Required fields are marked *