What size generator do I need for a 75 hp motor?
Table of Contents
What size generator do I need for a 75 hp motor?
Rule of Thumb
| Electric Motor Size | Minimum Generator Req’d (KVA) by Starting Method | |
|---|---|---|
| HP | KW | D.O.L to KVA Size (Note 1) |
| 25 | 19.6 | 60.5 |
| 30 | 22 | 75 |
| 40 | 30 | 100 |
How many kilowatts does a 100 hp motor use?
This 100-horsepower centrifugal pump motor, if fully loaded, should be consuming nearly 80,000 watts (80 kW).
What kVA generator do I need to run a motor?
The Full load input of the motor assuming an efficiency of 80\% and a power factor of 0.8 lag the KVA input at FL = 20 x 0.75 / (0.8 x 0.8) = 23.44 KVA. If the motor is started with FL on the shaft and a starter to limit the starting current, may be you will require about 40 to 45 KVA generator.
What size generator do I need to start a 240 volt motor?
The generator must produce 31 Amps at 240 Volts, to safely start this motor. Multiply 31 amps x 240 Volts = 7400 Watts or 7.5 KW generator size. Sizing a generator for three phase motor starting LRA : The formula is: Motor HP x KVA per HP x (1000 / (Volts x 1.73)) = LRA.
How do you size a generator for a 3 phase motor?
Multiply 31 amps x 240 Volts = 7400 Watts or 7.5 KW generator size. Sizing a generator for three phase motor starting LRA : The formula is: Motor HP x KVA per HP x (1000 / (Volts x 1.73)) = LRA.
What size generator do I need for a 31 LRA motor?
7.425×4.167 = 30.9 = 31 LRA. The generator must produce 31 Amps at 240 Volts, to safely start this motor. Multiply 31 amps x 240 Volts = 7400 Watts or 7.5 KW generator size. Sizing a generator for three phase motor starting LRA : The formula is: Motor HP x KVA per HP x (1000 / (Volts x 1.73)) = LRA. Example: A 20 HP Code G motor connected to 460