PLEASE HELP!! Wiring a 25 hp 3 phase ac motor with 12 leads

Thread Starter


Joined Nov 16, 2015
It's a 25 hp Hawker Siddeley 3 phase ac motor with 12 leads. I found the proper wiring diagram from a guy in Korea but the motor leads are labelled 6,6,7,7,8,8,T6,T6,T7,T7,T8 and T8.

The like leads are twisted together at the end, so there's 6 pairs.

Doesn't follow the typical 1-12 convention.

Can anybody help????

I can post pics if needed.


Joined Nov 4, 2013
On each matching pair there should be a second indicator on one label (line or dot over under or beside one number set on one lead) that designates which end of the winding it is.

Once you have that you can relabel each winding end with the more standard code you are familiar with.