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Assuming it is a 400 V three-phase motor, the phase current is 11 amps, or more if the power factor is less than 1.0 (or the supply voltage is different).
If it is a 400 V motor the cable should be capable of carrying 16 amps, so a 2.5 mm-sq 4-core cable is needed.
Wiki User
∙ 11y ago
Wiki User
∙ 12y ago3 core 4 Sq.mm cable is sufficient for 7.5 HP motor.
Eswaran
Wiki User
∙ 11y agoType your answer here... for 7.5 kw motor,10 sq mm aluminum or 6 to 8 sq mm copper cabal is sufficient
Wiki User
∙ 11y agoCable size is based on amperage. The formula for amperage is I W/E. Amps = Watts/Volts. As you can see without a voltage given this question can not be answered.
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What is the cable size of 110 KW motor?
The cable size depends on a few factors, such as the supply voltage, the method of starting the motor, (direct-on-line, or star delta) and the length of cable required to compensate for voltage drop. Also, if the cable is copper or aluminum.110 kW motor has a rated current of 200 amps at 415 volts, so the correct copper cable size would have a cross-sectional area of 75 square mm., if the motor is started direct-on-line.At 660 volts, the rated current would be 118 volts and the cable size would be 35 square mm.
How do you convert hp to amp?
HP/.00134= Watts Then Watts divided by Volts = AMPS For expample. a .75 HP electric motor running on 220VAC uses 2.544 amps .75 / .00134 = 559.7015 Watts then 559.7015 / 220 = 2.544
How many amps load taken to 75 hp motor?
The answer is that it depends upon the a. efficiency (to determine its input power). b. supply voltage. c. nature of the supply (single-phase, three-phase, d.c., 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 size power cable is needed for 30KW 440V 3phase 50Hz induction motor?
Use this formula to find amperage when kW is shown. Amps = kW x 1000/1.73 x Volts x pf. Use a power factor of .85 for the formula. Once the current is calculated re-ask the question for cable size for the calculated current.
What should be the current of siemens 75 kw motor at no load?
starting current of 3 phase 75 KW induction motor
What is the cable size of 110 KW motor?
The cable size depends on a few factors, such as the supply voltage, the method of starting the motor, (direct-on-line, or star delta) and the length of cable required to compensate for voltage drop. Also, if the cable is copper or aluminum.110 kW motor has a rated current of 200 amps at 415 volts, so the correct copper cable size would have a cross-sectional area of 75 square mm., if the motor is started direct-on-line.At 660 volts, the rated current would be 118 volts and the cable size would be 35 square mm.
What size of breaker is use for 75 horsepower 220 volts 3 phase induction motor?
500 amp breaker with 250 mcm cu conductors, NEC list this motor as drawing 192 amps X 250% = 480amps go to the next standard size of breaker which would be a 500.
How many wires for single phase 100 amp 240 volt service?
cable size for 90 amps 3 phase 440 v <<>> A #3 copper conductor with an insulation factor of 75 or 90 degrees C is rated at 100 and 105 amps respectively. If this feeder is for a motor connection the wire size has to be increased to 125% of the full load amps of the motor.
How do you convert hp to amp?
HP/.00134= Watts Then Watts divided by Volts = AMPS For expample. a .75 HP electric motor running on 220VAC uses 2.544 amps .75 / .00134 = 559.7015 Watts then 559.7015 / 220 = 2.544
How many amps load taken to 75 hp motor?
The answer is that it depends upon the a. efficiency (to determine its input power). b. supply voltage. c. nature of the supply (single-phase, three-phase, d.c., etc.)
What is the size of 3 core copper cable for 3 phase 125 amps current for 10 meter length indoor cable tray?
Allowable ampacities for not more that 3 copper conductors in a cable based on an ambient temperature of 30 degrees C. A #1 copper conductor with an insulation factor of 75 or 90 degrees C is rated at 130 and 140 amps respectively.
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 size power cable is needed for 30KW 440V 3phase 50Hz induction motor?
Use this formula to find amperage when kW is shown. Amps = kW x 1000/1.73 x Volts x pf. Use a power factor of .85 for the formula. Once the current is calculated re-ask the question for cable size for the calculated current.
What size armoured copper cable needed for 75 kW motor?
Wire sizing is based on the motors full load amperage. The amperage can be calculated but a voltage has to be stated. I = W/E. Amps = Watts/Volts. Restate the question with a voltage and an answer can be given.
What will be the cable size for 300 A if the 3 phase voltage is 220 volts?
At least 50mm but with all the de-rating factors it might be 70mm that's if its 2 cable single phase non armoured clipped direct. Check out the tables dopey!!!! FYI 50 mm = 2 inches, 70 mm = 2.75 inches these are not wire sizes, sound more like cable outside diameters. Correct answer The wire size is dependant on the insulation factor on the wire. A few common insulations and corresponding wire sizes for 150 amps are - Size 0 R90 good for 155 amps, also with insulations of RW 75, TWH, TW75, good for 150 amps. Size 000 TW good for 165 amps.
What phase is water in at 75 C and 9atm?
Liquid phase
