Hi all,

I am new to motor testing and was wondering if you guys may know where I would be able to get some online study material on motor testing. Any specific books you would sugguest or even documents. Specialy on AC motors fault finding on the different types of motors (Induction, Sync etc. )
Also what to monitor on different types of motors for a good predictive maintenance program on the electrical side ?

For basics of motors, motor theory, and troubleshooting, see Electric Motor Maintenance and Troublshooting by Augie Hand
http://www.licensedelectrician.com/Store/MG/Elec_Motor_MnT.htm

For very detailed discussion motor insulation design, inspection and test methods that will be useful long after you learn the basics:
"Electrical Insulation for Rotating Machines" by Stone, Culbert, etc
http://www.amazon.com/Electrical-Insulation-Rotating-Ma...eering/dp/0471445061

See also the articles here:
http://www.reliabilityweb.com/fa/motor_testing.htm