Member postings for David P

Hi Dave

Just seen your post and have resent email,

I think it was my fault, I deleted the block of text….oops.

Dave.

So if I wire it as the motor plate picture by Pixel_Porpoise it will look something like my attempt at an electrical drawing, sorry.

I have done a test and get a reading when the multimeter is put between A red and black N, also get a reading between B yellow and brown N and C blue and white N.

so how do I test which of the free wires, Brown, Black and White go to the correct terminals A, B and C for delta?

I do not have the original plate that covered the wires but looking online it seems most of the Brook Crompton 3 phase motor are wired the same as the picture shown by Pixel_Porpoise.

Ok, I am new to the forum and have spent the last few days looking at all the topics on inverters, I have picked up some valuable tips but still not sure if my planned approach is correct.

I have a Fobco bench drill that is 3 phase 370 watt 400 volt @ Hz50 which I want to run as 1 phase 230 volt.

My simplified explanation is as follows, first change the motor to Delta, I have taken the 3 wires off terminal N and checked for a circuit (continuity) between A, B and C and the wires from N being Brown, Black and White, so I presume I connect the Brown, Black and White to the A, B and C terminals where there is continuity and that will set the motor in Delta mode 240 volt 3 phase.

Then purchase this **LINK**

can I then just run a cable to the inverter input from a 3 pin domestic plug and the 3 phase out to the motor terminals A, B and C.

another thing I am not sure of and that is, do I need to set the inverter to Hz 50 to keep the speed the same and will the switch on the side of the drill still work for forward and reverse.

Thanks for any guidance/help, David