Recent content by Harris Marine

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    VSD earth/ground fault

    Hi Dave, Sorry about the late reply, but yes when the fault was present, it was present when tested from both ends. But then as if by magic the fault disappeared. The VSD tripped again last night, after running ok for the last 2 weeks, the cleaner that was nearby reported seeing blue sparks...
  2. H

    VSD earth/ground fault

    Hi Dave, Thanks for your reply. Cable is 16mm2/6awg 3core shielded copper xlpe. Voltage is 690v
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    VSD earth/ground fault

    Hi Guys, I’ve just had a VSD for a supply fan trip on over current. Upon meggering the motor cable it was discovered that the shielding and one of the phases was shorted. I searched the length of the cable (around 50metres/150ft) and found no obvious signs of damage. I checked the motor...
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    Single phase motor start capacitor.

    Hi Phil, Yes I checked by measuring the voltage across the start windings whilst operating the winch. The voltage quickly raises up to 400v then cuts out completely. The whole process takes approximately a second, give or take. I think we would see smoke if we waited 5 seconds.
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    Single phase motor start capacitor.

    Hi Phil, Thanks for getting back to me. The motor is 3,6kw so 4hp. There is a secondary anchor winch that’s fully functional and I would estimate that the centrifugal switch opens at around a second. I also checked the back voltage before which is around 400v. I am in Spain btw, not USA
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    Single phase motor start capacitor.

    Hi Phil, Thanks for replying. I did think of a timer, however an anchor chain is a varying load so it will have varying startup times. Also the anchor can get caught at times so the start capacitor may need to re engage at times.
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    Single phase motor start capacitor.

    Hi all, Quick question. I have an 230v anchor winch with a broken centrifugal switch on the motor which is letting the smoke out the start capacitor. I’m having trouble finding a replacement centrifugal switch. So I was thinking of replacing it with a potential relay. Problem is these are not...
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