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Forum Index : Other Stuff : How to measure power consumption of 3 phase pump?

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greg199
Newbie

Joined: 03/11/2015
Location: Australia
Posts: 39
Posted: 08:21am 11 Sep 2020
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I have a 3 phase bore pump of unknown brand, model or rating and would like to know how much power it uses. Can I use my clamp meter to measure the current running through one active phase wire in the fuse box and then just multiply by 3 and then by 240V to get watts consumed or is there another/better/accurate DIY method?
My roadside utility meter only reads to the nearest 1kWh which is not accurate enough.
Edited 2020-09-11 18:42 by greg199
 
Murphy's friend

Guru

Joined: 04/10/2019
Location: Australia
Posts: 575
Posted: 09:20am 11 Sep 2020
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Rather than telling you, why not google '3 phase power calculation'?.
This way you might learn something rather than being told. And no, its not 3 times what you plan to measure.
 
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