Connection problem
Connection problem
(OP)
Hi all
I have a 3 phase 4 pole winding, 3 leads out 400v its a fan motor, at first glance it looked like a 3 tier winding 4 groups per phase 12 singles 24 slots, top to top connection.
the problem is its actually 8 coils 2 tiers 16 slots 1-4 pitch, it actually looks like a single phase winding, but the name plate is clear 3 phase 4 poles 400v, i cant see how i can get 4 poles from this kind of coil configration, can anyone help??
I have a 3 phase 4 pole winding, 3 leads out 400v its a fan motor, at first glance it looked like a 3 tier winding 4 groups per phase 12 singles 24 slots, top to top connection.
the problem is its actually 8 coils 2 tiers 16 slots 1-4 pitch, it actually looks like a single phase winding, but the name plate is clear 3 phase 4 poles 400v, i cant see how i can get 4 poles from this kind of coil configration, can anyone help??





RE: Connection problem
hope this helps
kind regds.
RE: Connection problem
That's interesting. First time, I've heard of scott t connected motor. Any websites that explain this kind of connection in motors ?
RE: Connection problem
hope this helps
kind regds
RE: Connection problem
RE: Connection problem
RE: Connection problem
Btw it is a Woods Fan motor and is 50 hz, aolalde, the info i gave in my original post is accurat 8 coils probably singles 1-4 span 16 slots, no shared or vacant slots and the winding is 2 layer with 3 leads out 4 poles,
Teco i have never seen a "t" connected motor, and am having trouble comprehending it, anymore info you could supply me with would be great, if anyone knows how to connect this winding, could you use the info below to help me
ie
left of group 1 = supply lead U
right of group 1 goes to right of group 4 (cross conn) etc
--- --- --- --- --- --- --- ---
1 2 3 4 5 6 7 8
RE: Connection problem
RE: Connection problem
Make Woods
Voltage 400/440
Hz 50
1380 rpm
0.22 amps
RE: Connection problem
http://www.woods-fans.com
http://www.engnetglobal.com/search/brands.asp?startat=420&brandid=&search=&ch=&companyid=HVA001
for more info
RE: Connection problem
The best option to get 4 poles, 3-phase is to connect it as a consequent pole with six ( 6) active groups and one dead coil. Note the dashes in each group show the coils in the group.
A1 - - - A2 B1 - - B2 C1 - - - C2
A3 - - A4 B3 - - - B4 C3 - - C4 “-“
For WYE 1 circuit:
T1=A1, T2=B1, T3=C1; jumpers A2&A3, B2&B3, C2&C3, neutral A4&B4&C4
For DELTA 1 circuit:
T1= A1&C4, T2=B1&A4, T3=C1&B4; jumpers A2&A3, B2&B3, C2&C3
Check flux densities to decide the connection and circuits.
RE: Connection problem
if u still need connection drawing,i can provide.
RE: Connection problem
RE: Connection problem
RE: Connection problem