Method of dismantling a cooling tube in a stator tooth and...

Details Method of dismantling a cooling tube in a stator tooth and... Method of dismantling a cooling tube in a stator tooth and...

H - Electricity

02

K

H02K 15/00 (2006.01) H02K 1/20 (2006.01) H02K 9/00 (2006.01)

Patent

CA 2437723

The invention concerns a method of dismantling a cooling tube (1) of polymer material and are elongate cut- ting tool used in said method. According to the method said tube (1) being fixed in an axially running cooling duct (2) in a stator tooth (3) of a stator (4) of a high- voltage rotating electric machine is cut at an axial level close to the stator (4) at both ends of the stator tooth (3). Then the cutting tool having a radially pro- truding cutting edge is inserted into the cut tube (1) at one of said ends, said tool being forced through the tube (1) along said duct (2) thereby slitting the tube (1) from inside. Thereafter the slit tube (1) is pulled out of the duct (2) with a twisting movement that causes breakage of the tube wall along the slit (7) and thus re- duction of the tube diameter.

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