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Time for a Motor and Pump to Reach Operating Speed

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OverviewAssumptions
  1. This calculator allows users to determine the rotational acceleration time expected for given electric motor directly coupled to a centrifugal pump.
  1. Direct coupled, i.e. no gearbox between pump and motor
  2. Pump follows the HP=KQ^3 relationship, i.e. no static head
Step 1: Motor Pump Acceleration Time
1.1 Rotational inertia of motor rotor (lb*ft2)
1.2 Motor and pump rpm (rpm)
1.3 Rotational inertia of pump rotor (lb*ft2)
1.4 Rated horsepower of pump (hp)
1.5 Motor breakdown torque (lb-*ft)
1.6 Motor full-load torque (lb-*ft)
1.7 Motor lock-rotor torque (lb-*ft)
Step 2: Solve
2.1 Proof steps  Show proof steps
2.2 Solve for Motor Pump Acceleration Time