How can i obtain parameters of a siemens ac indcution motor like stator/rotor resistance, leakage inductances etc? Are there any source which contains that kind of information about siemens motors?
Siemens A&D in Manchester are a pretty helpful bunch once you get through to the technical guys - have you tried contacting the manufacturer's tech support?
it provides various levels of documentation etc, as well as the contact points for the people in your country. The type of information you require is not typically available in the general manuals so I would find the contact person, give them the motor type you have and hopefully they will find the info you are looking for.
Note: the info you get from Siemens would be for a new motor. Obviously, if the motor you has been re-wound then the characteristics will be different from how they come out of the factory.