Hi
I am new to electrical engineering. I want to measure the 3 phase voltage near the water pumpset motors.
I have connected phase lines to earth through a diode and six 1 mega ohm resistors (measuring the voltage across resistor). The same earthing wire is connected to ground in my dc circuit.
Now my motor is damaged and the winding is burned.
I am not sure what is the reason? Will this circuit causes damage to the motor windings? Please suggest.
What is the minimum resistance required between 440v to earthing during motor on ( carying current of 20 amps).
P.s: I have taken earthing as i dont have neutral point
Thanks
Manjunath
I am new to electrical engineering. I want to measure the 3 phase voltage near the water pumpset motors.
I have connected phase lines to earth through a diode and six 1 mega ohm resistors (measuring the voltage across resistor). The same earthing wire is connected to ground in my dc circuit.
Now my motor is damaged and the winding is burned.
I am not sure what is the reason? Will this circuit causes damage to the motor windings? Please suggest.
What is the minimum resistance required between 440v to earthing during motor on ( carying current of 20 amps).
P.s: I have taken earthing as i dont have neutral point
Thanks
Manjunath