Dear Friends,
I have a situation which is similar to the thread 237-443212.Unfortunately the thread is closed.So I am starting a new thread.The motor current 450 KW centrifugal pump ( Cooling tower pump)driven by Soft starter.It takes high current during stopping.The stop (coasting ) mode...
We need to check the proper functioning of PTC thermistor protection for a 3 phase motor driven by soft starter.The motor name plate says the max measuring voltage of 2.5 volts dc for PTC. However for our application the measuring voltage is derived from the Soft starter and the PTC wires from...