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Swimming pool 3 phase motor trips occasionally on earth leakage RCD

CliveS
We have a new 4 kW 3 phase pump motor at the local pool which has a new variable speed drive unit attached and occasionally it trips out on the RCD which I assume is 30mAmp .  The connections are star inside the motor but not earthed which should have stopped it tripping.

We are not sure what to do, we could run the motor flat out and delta connect the windings possibly or some suggest disconnecting the RCD as the circuit is completely separate from normal wiring.  Would this option contravene any of our regs?
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    Thanks for the link.   

    Well, it looks as if the EU has managed to double the cost of EC2 induction motors as the VSC cost more than the motor.  Why can't we table an amendment to state.  Induction motor run at full load all the time are exempt.   

    Otherwise, we just go with Boris and forget about EU over the top nonsense directives like this. which is making no savings at all.  

    BTW I did hear that the EU Lisbon agreement indicated that all member states should be using Euro's by next year which could be another reason for opting out of the EU.
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  • 0
    Thanks for the link.   

    Well, it looks as if the EU has managed to double the cost of EC2 induction motors as the VSC cost more than the motor.  Why can't we table an amendment to state.  Induction motor run at full load all the time are exempt.   

    Otherwise, we just go with Boris and forget about EU over the top nonsense directives like this. which is making no savings at all.  

    BTW I did hear that the EU Lisbon agreement indicated that all member states should be using Euro's by next year which could be another reason for opting out of the EU.
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