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On a 10kv MV cable I will be using a circular metal type clamp. Will this induce eddy currents?

Sorry lads, to get this right ( i don't want to make a costly mistake!) I connect my single phase supply to my R phase on the supply of the VSD and loop out my other 2 phases. Applying the same for the secondary and send the single phase to the motor. The motor is 4hp.

how do i connect this do i connect 1 phase or loop out the three phases with my 1 supply?

I have a 3phase VSD for a pump, but only have a 230v supply, is it possible to run the pump through the vsd with a single phase supply?

oh and there's no thermal relay as its a fire extract fan.

it's a 2 pole 230d 400Y 3200rpm 1.6A running speed 10A start speed on run its pulling 1.3A 420 volts with motor running and 400V without

hi 7anoter4 i should have mentioned that i actually have 16 of these,5 of which are being controlled by frequency invertors and same happening to them all.so chances of all motors being damaged?would the fact i had them connected in delta first have damaged the windings?

i originally had the motor connected in delta and it was tripping the breaker,i even had the supplier out today looking at it,he is lost!!the plate on the motor says to connect the motor in delta for single phase and star for 3 phase.

Hi all i have a 3ph star connected smoke extract motor which is meant to run at 2800 rpm but is only running at 1030rpm.i am getting 400v between phases.the motor came pre-wired with 6 tails off the motor.i connected them to suit a star connection,any help greatly appreciated.