Discuss Starters and motors in the Electricians' Talk area at ElectriciansForums.net
View attachment 27775What's this?
was looking at a motor the other day and when I measured across all I got was 230v to Earth but not 400v between.
View attachment 27774Rating ate.
I know nothing about controls and motors. I measured 400v at isolator , which then goes to id say is a starter of some sort (pic). I then measured 230v at motor housing. I used martingale gs38 testerWhat controls the motor? .... DOL, VSD, Star/Delta, Soft Start etc etc?
Has it got speed control?
What meter are you using to get your voltage?
What's the nature of this post... is something wrong with the motor or its operation?
I know nothing about controls and motors.
I know nothing about controls and motors.
I know nothing about controls and motors.
Agree totallyNeither do I, that's why I leave it to others!
I measured 230v at all points on motor to earth but nothing between connectionsIf it's supplied by a variable frequency drive there's a good chance your tester won't be able to make sense of the supply at the motor due to the high carrier/switching frequencies.
Guys and divas , I only check power at devices after that the boss sends it back for specialist which I asumme in this case is an electrical engineer .
View attachment 27778 Dave not my job now so fuk it . Just a little interested .
The fault was bandsaw not working. It also has a dust extractor tapped off it
The only explanation of getting 230v from all terminals to earth and 0 v between the terminals themselves is that there's only asingle phase being supplied to the motor. That's the easy bit, the difficult bit is figuring what's causing that condition. Maybe the contactor was not energised but one of the contacts is welded closed due to a fault current that occurred previously but then the question becomes what was the earth or the s/c fault.
Which fuses Ipf ? On the circuit board? Yes there's one which Belleyed out.
theres 400v at sol starter but on 230v at motor casing
The squirrel cage is a robust motor hahahahhahahahhhahahah
stupid boy, pike.But as said why only getting 230v motor connections,
why nit not just break live with e stops , forget control boards ...
Any motor in good condition will survive if the protection is set right and adequate ... the problem is this is not the case with half the crap out there .... ...if the motor hums and doesn't move you are turning the windings into a heater coil tht will self destruct if not stopped ( In the case of a standard squirrel cage)
why nit not just break live with e stops , forget control boards ...��
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