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Watts and horsepower are directly related as they are both measurements of power. 1hp = 745.6998 watts. So 3kW = 3000W / 745.6998 W/hp = 4.023hp You need a minimum of 4hp, which will give you a max of 2982W before any losses in your generator. You should probably go with a 4.5 or 5 horse motor.

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The code book rating of a three phase 230 volt motor is 42 amps. Motor conductors have to be rated at 125% of the full load amps. 42 x 125% = 52.5 amps. A #6 copper wire with an insulation factor of 75 or 90 degrees C is rated at 65 amps. The breaker for a motor load should be 250 % of the full load amperage. 42 x 250% = 105 amps. The next biggest size breaker up from 100 amps is 125 amps which is too big, so a 100 amp breaker will work and still be within the electrical code standards.

2 gaug 100 amp braker

The accurate answer depends on the load on the motor (duty cycle) and efficiency of motor. 15HP motor will not actually give you 15HP worth of work 100% of the time.

If you assume that for sake of simplicity, then:

1 HP = 0.746 kW

Therefore, 15HP = 11.19 kW

If you ran it for an hour straight, it would need 11.19 kWh.

So at the very least you will need a generator that can give you about 12kW. Of course there are transmission losses depending on distance between the two units and cable types used. So, 15kW or more may be a better approximation.

A 10 hp 480 volt 3 phase motor's amperage is 14 amps. To overcome the starting current a factor of 250 % is added. This brings the current up to 35 amps. Watts = Amps x Volts. 480 x 35 = 16800 or 16.8 kW. A 15 kW generator will do the job. Away from the question, the wire size for motors is 125% of the full load amps and breakers size is 250%, fuse size 300% of the full load amps.

It would depend on more specifics of the generator design such as how the coils are wound.

what size generator needed for a 25 h.p. ,10 h.p., 5 h.p.,conveyor sysytem

The generator would be a 230 v 3-phase generator with a rating of 18 HP or 13.5 kW. If the motor has a power factor of 0.8 the generator would need to be 17 kVA.

At least 23kW

A 5 HP motor or engine should do the job.

21 kVA

Q: What Generator size is needed for 10 hp 480 volt 3 phase motor?

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The generator should be about ¾ hp.

The electrical code book states that a single phase 3 HP motor at 230 volts draws 17 amps. This equates to 3910 watts. Allowing for starting inrush current a 5000 watt generator will run the motor but the generator will labor a bit until the motor gets up to speed. Generators with a higher wattage rating would have less trouble with the starting of the 3 horse power motor. <<>> One hp is 746 watts. 3*746=2238. It takes 3 to 6 times as much energy to start as it does to run.

Probably not. The single phase three horse power motor will be much larger in physical size than its three phase counterpart, and will probably not fit.

you need the current of motor or the KW/HP rating

Well, if 80kW is your PEAK value, then you need an 80kw generator. If 80kW is your nominal current, you need to figure out what your peak current is. This will depend on the type of load. Is mostly motor loads? If so, your peak current may be significantly more than nominal, depending on the starting sequences of the motors. Clear as mud?

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The generator should be about ¾ hp.

probably about 50 hp depending on how reliable the efficiency ratings of the various manufacturers are

The size of the generator is based on the size of the load you want to supply. Size up the load in watts or amps along with what phase (single or three) and voltage that the load requires. These are needed to give a complete answer.

you need around 60000 watts on a dc current

As example, at 380V the generator produces 685A per phase. Therefore you will require 2 x 120mm2 cables per phase. (1 x 120mm2 cable will support 365A per phase). In total you will require approximately 1/2km of cable to cover the 50m run between the generator and the ATS panel/Load. i.e. 5 phases in total - 2 x 50m cables per phase.

You should get a 3 phase generator that has 8-12 KW. If you had to you could use a 3 phase 5.5-6 kw but it may wear out faster because you are using 100% power. The 3 phase gen will allow you to select 480 volt which can be converted to 380 for the mixer. The rpm of the motor in irrelevant because the generator is the power source in this situation, once the gen powers the motor it will produce 1140 to power the mixer.

You need a 5.5kw generator to run a 5.5kw motor.

To answer this question the full load amperage of the motor and what phase the motor is, should have been given. This answer uses the motor amperage give in the electrical code book and will be close for your purpose. A 6 HP is not a common size motor. 7.5 HP motor is 25.3 amps. Using a power factor of 90%. W = I x E x 1.73 x pf, W = 25.3 x 220 x 1.73 x .9 = 8666 watts. A 10kW three phase generator will probably start the motor if it is not under load when it starts. A 15 kw generator would be better. A single phase 7.5 HP motor draws 40 amps. W = I x E x pf = 40 x 220 x .9 = 7920. Again A 10kW single phase generator will probably start the motor if it is not under load when it starts. A 15 kw generator would be better.

A 5 kW generator would turn it over but if the full 30 hp of mechanical power is needed, that would require about 30 kW of electric power from the generator.

Yes, a 2800 watt generator should be able to run a 550 watt electric cement mixer motor. The generator's wattage is more than enough to power the motor with some extra capacity for other devices. Be sure to check the starting wattage of the motor as well to ensure the generator can handle the initial surge of power needed.

To answer this question, the voltage whether the supply is single or three phase, of the 1.5 HP motor must be given.

The size of diesel generator varies greatly. The size that is needed would depend on the size of the house.