230v single phase motor - Electricians Forum | Electrical Forum | An electrical forum for electricians in the UK

wannabesparky · 03-07-2008

single phase 230v motor to a lathe, red & blue together and black & yellow are together, which is live

Ross Trician · 03-07-2008

I dont think it matters which way you put the live and neutral,,,the windings are only a circuit to cause a magnetic field.

Spudmiester · 04-07-2008

has this thing got a capacitor ? it wont run unless it has

wayne · 04-07-2008

spud,- you're asuming a capacitor start-run motor ,there are other ,less used ways of doing it (but your'e probably right

)
sorry for being thick when you say red/blue together ........do you mean the motor or the supply cable ?

Spudmiester · 04-07-2008

Quote:

Originally Posted by wayne

spud,- you're asuming a capacitor start-run motor ,there are other ,less used ways of doing it (but your'e probably right

)
sorry for being thick when you say red/blue together ........do you mean the motor or the supply cable ?

You are right Wayne, realised what i had said after posting !

rumrunner · 04-07-2008

hi
Red and blue together would be correct if it has a capacitor ,but it will still work connected the other way ,if it goes the wrong way reverse the field connection

atvbitwww

wayne · 04-07-2008

hi rum

rumrunner · 04-07-2008

Quote:

Originally Posted by wayne

hi rum

Hi Wayne

Shakey · 05-07-2008

Quote:

Originally Posted by rumrunner

hi
Red and blue together would be correct if it has a capacitor ,but it will still work connected the other way ,if it goes the wrong way reverse the field connection

atvbitwww

rum old chum

where you been fella?

missed you!

Moog · 06-07-2008

I take it he is saying single phase motor on three phase supply. Dont single phase motors usually have the start and run winding internal to the motor and you simply take a phase and neutral from star as live and neutral? so red or yellow or blue for phase and black for neutral?