- #1
Su Solberg
- 75
- 0
Hi Guys,
I have a problem about the starting current of a pump's electrical motor.
I have the working condition of the pump (torque, power, speed, P and Q)
But how could I calculate the start up current of an IEC standard motor?
Seems I has to gather a Torque-speed curve from the supplier, right?
Also, in case it is not provided, how can I estimate the starting current and how to protect my motor to burn (since the starting current is 3 times more!? than the operation current )
p.s. since it's a a 10" pump, starting with inverter would not an economic choice. Direct on line would be better, I think.
Thanks in advance.
Regards,
Solberg
I have a problem about the starting current of a pump's electrical motor.
I have the working condition of the pump (torque, power, speed, P and Q)
But how could I calculate the start up current of an IEC standard motor?
Seems I has to gather a Torque-speed curve from the supplier, right?
Also, in case it is not provided, how can I estimate the starting current and how to protect my motor to burn (since the starting current is 3 times more!? than the operation current )
p.s. since it's a a 10" pump, starting with inverter would not an economic choice. Direct on line would be better, I think.
Thanks in advance.
Regards,
Solberg