It is unusual for star connections to burn as they are effectively neutral with no potential difference. To have 3 out of 6 fail is even more unusual. I have seen smaller sub-m pumps that have a star-point thermal overload. Sometimes the overload fails creating a high resistance joint which...
Hi Petronila,
Dynamometric testing is different for a large variety of motors. One can also get many types of dynomometers such as hydraulic, electro-magnetic, frictional.
Please be more specific about the type of motor, its mountings, the type of cooling the motor usually needs and what you...
