STATOR WINDING


             STATOR WINDING PROCESS


First connections are noted down  and then
connections are opened.                                                                                          Old coils are removed  one by one by means of special long chisel tool.







A 6600 V 4 POLE STATOR READY FOR VPI                                                                                      TREATMENT

New coils are placed in stator after testing them in air at 2 X Un +1 Kv for 60 sec withstand capacity.
IR value is also checked and it should be greater than 100 M ohms.
coils in stator also tested for group of 3-4 coils and leakage current is noted down.
Either VPI or Press Moulding process is used for HT motor stator manufacturing
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