Designing a Voltage Sensor for Mains Monitoring and Backup Generator Start Signal

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#1 21665996 19 Jan 2013 08:12

FAUSTIN SHIPANGA FAUSTIN SHIPANGA

Anonymous

Post #1
21665996 19 Jan 2013 08:12

How to design a voltage sensor for sensing mains and initiating a start signal for a back up generator, if mains fails or is out of range 200V to 260V or single phasing?
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#2 21665997 19 Jan 2013 08:24

Peter Evenhuis Peter Evenhuis

Anonymous

Post #2
21665997 19 Jan 2013 08:24

There are special modules from many manufacturers (voltage monitoring) on the market.
If you have a branded generator they will have there own module that arrange the start up and switch over to generator and back to mains.
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#3 21665998 19 Jan 2013 08:38

FAUSTIN SHIPANGA FAUSTIN SHIPANGA

Anonymous

Post #3
21665998 19 Jan 2013 08:38

Thank you! But my question was relying mainly on possibities of using electronic devices to construct such circit.
#4 21665999 19 Jan 2013 09:23

Steve Spence Steve Spence

Anonymous

Post #4
21665999 19 Jan 2013 09:23

I use a walwart to bring down the voltage to something reasonable, like 12vdc (non-regulated). I then use a voltage divider feeding an Arduino, which then activates relays or SSR's appropriately based on what I'm attempting to do. Very simple, and very little code needed.

I also monitor current consumption for overload and data logging. See "Watt Meter Project (Watt Meter Project)":http://www.instructables.com/id/DIY-Amp-Hour-Meter-Arduino/
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Designing a Voltage Sensor for Mains Monitoring and Backup Generator Start Signal

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