0
One horsepower electric is 746 watts, so 30 horsepower is 22.4 KW. You don't specify the power factor or motor efficiency, so I am going to assume a power factor of 0.92 and an efficiency of 0.97, fair values for a 30 horsepower motor. Divide 22.4 KW by 0.92 and then by 0.97 and you get 25.1 KVA. Divide that by three and you get 8.4 KVA per winding. You don't say if the motor is delta or wye connected, so I'm going to assume delta, and multiply by the square root of 3 (1.732) to get 14.5 KVA per phase.
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
How many amps do you need to power 1hp?
The amperage of a motor is governed by the voltage that the motor operates on. Without a voltage given, an answer can not be given.
What size breaker do you need for 9000W at 440V 3phase?
This formula will give you the amperage I = kw x 1000/1.73 x E x pf (pf = power factor). Take the amperage and multiply it by 125%. This will give you the breaker size that you need.
What is the circuit for reversing an electric motor?
I HAVE A SMALL ELECTRIC CLOCK MOTOR THAT I NEED TO REVERSE. WHAT IS THE CIRCUIT I NEED TO REVERSE IT?
How do you do motor solo run test?
To do a motor solo run test you need to connect the motor to a power supply. Next, you observe the motor's vibration, temperature, and sounds.
Why capacitors are not used in three phase motor?
There is no need. The three-phase supply provides a rotating field in the motor, rotating in the right direction, so there is no need for a starting capacitor.
How many AMPs does a 7.5HP motor need?
depending on 1phase or 3phase voltage motor , the amphere requirement is found outfor 3phase AC motor use this formula: (HP x 746)/(1.73 x E x Eff x PF)for 1phase AC motor : (HP x 746) / (E x Eff x PF)
How many microfarad of running capacitor is best for a 1.5 hp 220volt motor?
There are many different 'run' capacitors on motors. It depends on the motor make and use. You need to consult your manual or local electric motor shop.See related links below for good information on how capacitors effect motor starting.
How do you determine the proper cable for 240V 3phase 15hp induction motor for a distance of 1000 ft?
This wouldn't be on a farm would it? 1000' line would need it's own utility pole, and transformer.
How many watts does a motor need to run for 30 minutes?
75 kw motor
How many motor mounts on 3.8 buick?
Transmission mounts are they considered motor mounts? After saying that how many motor mounts do I need to replace, if I change out all of them.
What parts of physics do I need to know in order to make a motor?
Technically, you can make a motor without knowing any physics. However, to understand a motor you will need to know many aspects of physics, from friction, to gas laws, and many others.
Where is the electric motor located on a Lincoln?
There are many electric motors on a Lincoln, need to know the year and which electric motor you are looking for.
How many amps does a 50 horse power electric motor use?
Need to know the voltage of the motor.
How many watt transformer is needed for 2.5 amp motor?
Need to know the voltage of the motor and primary voltage of the transformer.
How many quarts of oil does your 3.3 liter dodge motor need?
five
How many amps do you need to power 1hp?
The amperage of a motor is governed by the voltage that the motor operates on. Without a voltage given, an answer can not be given.
How many horse power does a 5.7 motor have?
Need to know the year. they are all different.
