Bazooka Joe Posted May 2, 2009 Report Share Posted May 2, 2009 Any budding Sparkies out there that know any thing about Inverters ? I've an old Boxford Lathe, three phase running off an Inverter which has stopped working for some reason. I'm lost without this Lathe, & need some advice on whether this Inverter is beyond repair..!!!! I'm in the N/E near Newcastle, anyone in this area could help me out with this ? BJ. Quote Link to comment Share on other sites More sharing options...
tweedledee Posted May 2, 2009 Report Share Posted May 2, 2009 i presume you are talkin about a single phase in three phase out inverter. what is the voltage in and out like? Quote Link to comment Share on other sites More sharing options...
Bazooka Joe Posted May 2, 2009 Author Report Share Posted May 2, 2009 i presume you are talkin about a single phase in three phase out inverter. what is the voltage in and out like? Yes, 240v in, 3 Phase out. As for in & out voltage I haven't a clue. Switch the Inverter on, the Lathe will run for about 30 sec's or so, then just stop, just started doing this recently, BJ. Quote Link to comment Share on other sites More sharing options...
tweedledee Posted May 2, 2009 Report Share Posted May 2, 2009 is it tripping out or just stopping going? Quote Link to comment Share on other sites More sharing options...
Bazooka Joe Posted May 2, 2009 Author Report Share Posted May 2, 2009 is it tripping out or just stopping going? I'm sure it's tripping, Lathe stops dead, Inverter won't work after that, BJ. Quote Link to comment Share on other sites More sharing options...
V8landy Posted May 2, 2009 Report Share Posted May 2, 2009 You need to test if it is the invertor or your motor on the lathe before you start ripping the invertor appart. Do you have anything else 3 phase you can hook up to check the invertor? Quote Link to comment Share on other sites More sharing options...
Bazooka Joe Posted May 2, 2009 Author Report Share Posted May 2, 2009 Do you have anything else 3 phase you can hook up to check the invertor? Hi V8, no I don't have any other 3 phase machines. I'm not that well up on electrics, as you'll gather, basically I need some one to test it for me. BJ. Quote Link to comment Share on other sites More sharing options...
V8landy Posted May 3, 2009 Report Share Posted May 3, 2009 I am not up on electrics, hence my signiture below! Quote Link to comment Share on other sites More sharing options...
Bazooka Joe Posted May 3, 2009 Author Report Share Posted May 3, 2009 No one clued up on these contraptions ?? BJ. Quote Link to comment Share on other sites More sharing options...
tweedledee Posted May 3, 2009 Report Share Posted May 3, 2009 i have worked on them before but i would need to be there.if you were only closer i would take a look Quote Link to comment Share on other sites More sharing options...
Bazooka Joe Posted May 4, 2009 Author Report Share Posted May 4, 2009 Thanks Tweedledee, appreciated, Just need someone nearer to volunteer, BJ Quote Link to comment Share on other sites More sharing options...
Andy W Posted May 4, 2009 Report Share Posted May 4, 2009 There are quite a few different types of inverters, as you said you have 240 volt in and 3 phase out. Do you have a multi meter to test the output voltage ? I am familiar with some inverter drives which vary the hertz of the output as demanded by a 4 - 20 Ma pressure transducer, yours sounds like a single phase in, three phase out for situations where a three phase supply is not available, you need to confirm the actual output voltage of the inverter, if the voltage is there and the motor does not run it will be a problem with the motor or the contactor or overloads, you need some one who can safely use a multi meter and has knowledge of motors. As always, if you are unsure of electricity do not mess with it, pay someone to come and test it for you. Quote Link to comment Share on other sites More sharing options...
Bazooka Joe Posted May 5, 2009 Author Report Share Posted May 5, 2009 Thanks for the reply Andy, yours sounds like a single phase in, three phase out for situations where a three phase supply is not available, That's exactly what it is Andy...this Lathe has ran on this Inverter for over a year now, & a few months ago just came to a halt. Do you have a multi meter to test the output voltage Yep, I can get one, but will need a ABC on how to test the output voltage...!!! Thanks, BJ. Quote Link to comment Share on other sites More sharing options...
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