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2900 rpm instead of 1440rpm motor

Question asked by rahul7580 in #Coffee Room on Jul 24, 2012
rahul7580
rahul7580 · Jul 24, 2012
Rank E2 - BEGINNER
what will be the current drawn if we use same kw rating but different rpm motor?? Posted in: #Coffee Room
Ramani Aswath
Ramani Aswath · Jul 24, 2012
Rank A1 - PRO
What has RPM to do with current? Torque will increase as speed decreases. At the same line voltage if the current changes, will the power rating remain the same?
rahul7580
rahul7580 · Jul 25, 2012
Rank E2 - BEGINNER
bioramani
What has RPM to do with current? Torque will increase as speed decreases. At the same line voltage if the current changes, will the power rating remain the same?
sir,
pump design is @1440 rpm but motor connected later is 2900rpm 15 kw. so definately linw current drawn will be around 60 to 70 pc more then wht 1440 rpm 15kw motor.wht will be the effect on pumping application and motor that i wanted to know??
Ramani Aswath
Ramani Aswath · Jul 25, 2012
Rank A1 - PRO
If the pump is designed for 1440 RPM and consumes 15 KW, connecting a 15 KW 2900 RPM motor to it will severely overload the motor and cause a burn out.
Mahesh Manekar
Mahesh Manekar · Jul 24, 2018
Rank E1 - BEGINNER

If the pump is designed for 2900 rpm with 7.5 kw motor and we want to run the pump in 1440 rpm with 7.5 kw motor what will be the result

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