0
whats the voltage??? at480 volts the Fla would be 33.75 or 35 amps. at 230 volts it would be 70 amps. i would go with the 480 myself because its less amps.
<<>>
The voltage stated in the question is 600 volts. There are 746 watts in 1 HP so in 20 HP there would be 746 x 20 = 14920 watts. I = W/E. 14920/ 600 = 24.8 amps. The proper formula to use would be I = HP x 746/1.73 x E x %Eff x pf. Without knowing the efficiency and power factor of the motor an accurate answer can not be given. In the trade, a quick rule of thumb is, for 600 volt motor installations, it is 1 amp per horsepower which is close enough to calculate the feeder wire size.
Wiki User
∙ 12y ago
Wiki User
∙ 11y agocurrent, Amps= 4 (746)/240(0.8)
=746/60*08
=746/48
= 15.5 amperes.
<<>>
This is the formula that you are looking for. I = HP x 746/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.
Wiki User
∙ 13y agoIt depends on the motor's efficiency, and power factor. At least 24A (100% efficient, 1.0 pf).
I searched for a few 7.5hp, 240v singe phase motors and found 30 - 45A.
Wiki User
∙ 10y agoOn 240 v the current can be estimated as 7 amps per horse power, so that is 35 amps for 5 HP.
Wiki User
∙ 11y ago1 hp = 746 watts
total power = 746 * 7.5 =5595 W
voltage = 240 V
P=V*I
5595=240 *I
I=23.3125 A
Add your answer:
Earn +20 pts
How many amps will a 24 volt dc motor draw if running at 12 volts?
Depends on how big the motor is. A stronger motor will draw more amps then a weaker or less efficient motor. For example a wiper motor draws far less then a starter motor.
How many amps does a 5 hp 208 volt 3 phase motor draw?
read the name plate on the motor
Will a 10 hp 220 volt motor draw large amounts of electricity?
A single phase 10 HP motor will draw aproximately 50 amps. A three phase 10 HP motor will draw aproximately 28 amps.
How many amps does a 2 hp 210 volt single phase motor draw?
Then you are trying to get more HP out of the motor that it can supply. Back off on the load that the motor is driving or put a bigger motor onto the load.
How many amps does a 110 volt 1.3 kw motor draw?
110 volts divided by 1,300 watts(1.3 kw) = .09 kw or 900 watts.
How many amps will a 24 volt dc motor draw if running at 12 volts?
Depends on how big the motor is. A stronger motor will draw more amps then a weaker or less efficient motor. For example a wiper motor draws far less then a starter motor.
How many amps does a 5 hp 208 volt 3 phase motor draw?
read the name plate on the motor
Will a 10 hp 220 volt motor draw large amounts of electricity?
A single phase 10 HP motor will draw aproximately 50 amps. A three phase 10 HP motor will draw aproximately 28 amps.
How many amps will a 3 phase 480 volt 4kw heater draw?
8,33 Amps
How many amps does a 240 volt and 8 hp motor draw?
24.87amps 1 hp=746 watts P=IxV ... (746x8)/240
How many amps does a 5000-watt inverter draw from a 24 volt system?
it draws 210 amps
How many amps does a 120 volt AC 8 watt led bulb draw?
It is drawing .06 amps.
How many amps does a 2 hp 210 volt single phase motor draw?
Then you are trying to get more HP out of the motor that it can supply. Back off on the load that the motor is driving or put a bigger motor onto the load.
How many amps does a 110 volt 1.3 kw motor draw?
110 volts divided by 1,300 watts(1.3 kw) = .09 kw or 900 watts.
How many amps does a 3000w inverter 240 v draw from a 12 volt system?
It would be at least 250 amps, maybe 300 amps.
How many amps would a 15watt radio draw in the transmit mode with 12 volt being supplied to the radio?
1.25 amps
How many amps are in a twelve volt motor?
That depends entirely upon the type of motor. A car starting motor may take a few hundred Amps for the short period.
