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Associate

Join Date: Sep 2009
Posts: 35

Malfunctioning of 700VA 230V Inverter

03/06/2017 3:53 AM

Dear Sir

Domestic 3 phase supply system, one phase circuit invertor 700 VA 230 V is connected for emergency lights.Often invertor supply starts eventhough 3 phase supply is on during early morning around 3 am and automatically invertor supply is getting off after 2 hrs and reqular supply comes on that phase.What could be reason for invertor itself disconnect main supply and invertor supply getting on only on early morning time

Sadasivam

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Join Date: Aug 2007
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#1

Re: Malfunctioning of 700 VA 230 V Invertor

03/06/2017 10:46 AM

Most likely there is an automatic test routine programmed into the inverter/UPS.

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#2

Re: Malfunctioning of 700 VA 230 V Invertor

03/06/2017 11:51 AM

Another possibility is low/no voltage on the incoming supply around those times. However, it cannot be seen from here.

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Guru

Join Date: Jun 2007
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#3

Re: Malfunctioning of 700VA 230V Inverter

03/06/2017 11:14 PM

May be under voltage or voltage dip.

If undervoltage is only reason,it should happen any time of the day.

Why only 2 am?

Is it routine affair since installation? Is it happening only recently?

The configuration of the inverter to be known before coming to conclusion

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Guru

Join Date: Oct 2009
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#4

Re: Malfunctioning of 700VA 230V Inverter

03/06/2017 11:59 PM

Try putting the invertor on another phase to see if the same thing happens

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Power-User

Join Date: Sep 2016
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Posts: 181
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#5

Re: Malfunctioning of 700VA 230V Inverter

03/07/2017 1:25 AM

Another possibility is that you are being hacked by your neighbours.

If the device is connected to the WLAN and the LAN WIFI passoword is 12345678 (the default provided by at least some companies in dwveloping countries), be aware that someone might be playing with ypur toy.

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