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Measuring current in centre tapped supply

Former Community Member
Former Community Member

Hi all,

I am wanting to monitor the current to a 110V motor fed from a centre tapped transformer. Total current could be max of 16A, so a CT will be required. My question  is, how do I get the actual current used by the motor? Can I simply put 1 leg through the CT, set the meter to the correct ratio and that's me or am I missing something?

Cheers

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    CT around one of the live cores  is fine assuming it is the classic builders 110V that is 55-0-55 centre earth, as no loads are ever connected to anything other than the 2 outers, the earth is just there for ADS/shock protection.

    Be aware that V.A. is not the same as watts though, VA is usually quite a bit higher for a motor once running.

    Mike.

     

     

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  • 0

    CT around one of the live cores  is fine assuming it is the classic builders 110V that is 55-0-55 centre earth, as no loads are ever connected to anything other than the 2 outers, the earth is just there for ADS/shock protection.

    Be aware that V.A. is not the same as watts though, VA is usually quite a bit higher for a motor once running.

    Mike.

     

     

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