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250 kW= 250,000 watts
1 horsepower=746 watts (The motor is approx. 335 horsepower. (just FYI))
The Ohm's Law formula for this is:
P(Power in watts)=I(Current in amps) x E(Voltage)
Since the voltage is unknown, I will give you different options based on input voltage.
I will assume three phase power for a motor this size.
So, back to the formula:
250,000=I x E
Let's assume voltage (E) to be 480v:
250,000=I x 480
I=520 amps
For a voltage of 208 (much less likely for this size motor):
250,000=I x 208
I=1201 amps
These are 'running' currents only. The amount of starting current will be much, much higher, but only for a brief period.
AnswerThe above answer assumes that the motor's input power is 250 kW. But this is not the case.
The power of a motor is always expressed in terms of its output power, not its input power! In North America, this is expressed in horse power, whereas everywhere else it's expressed in watts. So, to determine the current drawn by the motor, you have to start by determining its input power (input power is output power times efficiency); if you don't have a means of determining the motor's efficiency, then you cannot really find out its input power, in which case, you cannot find its current.
What else can I help you with?
How can a 55kw motor running current be 27amps?
The running current of a 55 kW motor can be 27 amps if it operates at a specific voltage and efficiency. For example, using the formula ( P = V \times I \times \sqrt{3} \times \text{PF} ) for a three-phase motor, if the motor operates at around 400 volts with a power factor (PF) of about 0.9, the current can be calculated to be approximately 27 amps. This indicates a well-designed motor operating efficiently under load conditions.
What is the armour cable size for 45kw 3phase ac motor 2965rpm?
At 2965 rpm it sounds like an induction motor for a 50 Hz supply. A 45 kW motor would draw about 55 kW from the supply with a power factor of 0.85, so that is 65 kVA, and on a 415 v 3-phase supply that is a current of 90 amps. For armoured XLPE cale the size needed is at least 16 mm2 Probably 25 mm2 would be preferred for a permanent installation but it would depend on how the cable is installed, how much free air movement there is around it etc.
What will be the size of cable for 75 HP 220 Volts 3 phase motor?
75 HP = 55 KW 55 = 31/2 x 0.220 x I x cos φ = 31/2 x 0.220 x 0.8 x I I = 55/(31/2 x 0.220 x 0.8) = 180,42 A 3 x 70 mm2 is the size of cable for 75 HP 220 Volts 3 phase motor
What is circuit breaker rating when electric load of a machine is 11.5 kW?
This question cannot be answered as asked. you would need to know also the voltage and phasing. Assuming we are dealing with 120-volt, single phase, 11,500 watts would be 55-running amps. Assuming we are dealing 208-volts, three phase, 11,500 watts would be 32 running amps and assuming we are dealing with 250-volt three phase, 11,500 watts would be 26.5 running amps. I hope I have answered your question.
What should be the rating of the transformer in KVA to cater to 55KW motor?
To determine the transformer rating in KVA for a 55 kW motor, you can use the formula: KVA = KW / Power Factor. Assuming a typical power factor of 0.8 for motors, the calculation would be KVA = 55 kW / 0.8 = 68.75 KVA. It's advisable to round up, so a transformer rated at 75 KVA would be appropriate to ensure adequate capacity.
12 volt 55watt how many amps?
55/12=4.6
How can a 55kw motor running current be 27amps?
The running current of a 55 kW motor can be 27 amps if it operates at a specific voltage and efficiency. For example, using the formula ( P = V \times I \times \sqrt{3} \times \text{PF} ) for a three-phase motor, if the motor operates at around 400 volts with a power factor (PF) of about 0.9, the current can be calculated to be approximately 27 amps. This indicates a well-designed motor operating efficiently under load conditions.
How many amps does a 55kva transformer can provide?
To determine the amperage a 55 kVA transformer can provide, you can use the formula: Amps = kVA × 1000 / Voltage. For example, at a standard voltage of 400V, a 55 kVA transformer can provide approximately 79 amps (55,000 / 400 = 137.5). The actual amperage will vary depending on the specific voltage used in the application.
How many amps can a number six wire hold?
A number six wire, also known as 6 AWG wire, can typically hold around 55-65 amps of current, depending on the insulation type and installation conditions. It is important to follow local electrical codes and consult with a qualified electrician to ensure proper sizing and safety.
Fit a starter motor on vectra cdti 55?
Yes, a starter motor can be placed in a Vectra CDTI 55.
10kw heater at 220V draws how many amps?
45-50 amps. But your overcurrent protection and wire must be designed for 125% of load so the max overcurrent protection is 55 amps or 60
What size of wire and breaker do you need for a 10 KW electric furnace?
To answer this question, wire size is rated in the amount of amperage that it can legally carry. The formula to find amperage when the HP is known is I = HP x 746/1.73 x E x %eff x pf. A standard motor's efficiency between 5 to 100 HP is .84 to .91. A standard motor's power factor between 10 to 100 HP is .86 to .92. Amps = 10 x 746 = 7460 = 7460/1.73 x 220 x .84 x .86 = 7460/275 = 27.1 amps. The electrical code states that a motor conductor has to be rated at 125% of the motors full load amperage. 27.1 x 125% = 33.8 A #8 copper conductor with an insulation factor of 60, 75 or 90 degrees C is rated at 40, 50 and 55 amps respectively.
How many hours will it take to drive 55 miles?
55 minutes at 60 mph
How many amps is 55kw at 460 volts?
To calculate the amperage, use the formula: Amperes = Watts / Volts. In this case, 55 kW is 55,000 watts. So, Amperes = 55,000 watts / 460 volts ≈ 119.57 amps.
How many amperes does a standard 60 watt light bulb use?
Watts = Volts X Amps. Amps=Watt / Volts. So, with a 240V mains, a 60W bulb draws 0.25amps. On a 12 system (car/auto) a 60W bulb draws 5 amps. On a 110V mains, a 60W bulb draws .55 Amps.
How many amps in a mega amp?
One Megawatt = 1,000,000 watts. Watts = Volts x Amps or voltage x current. Hence if you know the voltage then Amps = 1,000,000 watts / Volts.
How many amps can 6 aluminum carry?
The ampacity of 6 AWG aluminum wire typically ranges from 40 to 55 amps, depending on the installation conditions and the type of insulation used. In general, for residential applications with typical insulation, it is common to consider a capacity of around 55 amps. Always refer to the National Electrical Code (NEC) or local regulations for specific guidelines and adjustments based on the installation environment.
