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 Extend Batteries Backup & Life (UPS, Inverter & Car Battery) Lead-acid battery technology is one of the oldest rechargeable energy storage technologies still widely used around the world. From vehicles to power ...
Corrosion of Battery Terminals: Explanation, Cleaning & Prevention Sometimes, terminals or posts of lead acid batteries corrode due to which connection between batteries and appliance cuts off completely or weakens. I...
Why Car, UPS or Power Inverter Battery is Not Holding Charge – Reasons & Soluti... Reasons: - Battery is old and worn out - Weather is cold that has increased self-discharge rate - Battery is new but abused - Car battery suffered...
Methods For Circuiting UPS & Inverter With Home & Office Wiring Learn how to circuit UPS or Power Inverter with household appliances like fans, tube lights, energy savers, computers etc. Connect your office equipme...
Batteries in Series and Parallel Connections (Battery Packs) Making larger battery packs is often required to extend backup time or increase voltage to make certain devices work. For example, if you own solar po...
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...
Is it Safe to Charge Mobile Phones & Tablets with High Ampere or Quick Charge Charger... The answer is Yes. If you have bought a charger with higher charging current (A) than the original charger that came with your device and you are w...
Can you Use Deionized Water to Fill Wet or Flooded Lead Acid Battery? Yes. Deionized water can be used as an alternative to distilled water since deionization removes all salts from it. Such water if passed through prope...

Add a Comment

Your email address will not be published.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