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A #8 AWG copper conductor with an insulation factor of 90 degrees C will limit the voltage drop to 2.26% or less when supplying 30 amps for 120 feet on a 220 volt system.
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What wire size needed for a RV 30 amp 120v at 90 feet?
For single phase 30 amps at 120 volts you would need a #8 copper wire with an insulation rating of 90 degrees C.
How many output amps is a 45 kva transformer?
There is not enough information provided to answer. KVA is short for "Kilo Volt Amperes". That is, thousands of Volt Amps. In order to determine how many Amperes are flowing, you must know at what voltage it is operating. Amperes = 45,000 ÷ volts Bill Slugg
How do you solve for the size of wire when the given is kva?
The V stands for volts and A is amps. If for example you have a 12kVA device and are running off a voltage of 120 volts then Amps = 12000/120 = 100. You then use the calculated amps in a wire size table to get the correct size.
If you have a circuit breaker box containing 650 amps of circuit breakers it is 3 phase 480 volts what size kva generator do you need?
The question isn't the number of amps total on your branch circuits, but rather, what your MAIN breaker(s) are rated at. This will determine what size of generator you will need. And be certain that the generator is 3-phase. <<>> The formula you are looking for is Amps = kva x 1000/1.73 x voltage.
What size wire do you need for 650 watts?
To answer this question a voltage needs to be stated. Wire is sized by the amount of amperage the load takes. W = Amps x Volts. Amps = 650/ volts.
What wire size needed for a RV 30 amp 120v at 90 feet?
For single phase 30 amps at 120 volts you would need a #8 copper wire with an insulation rating of 90 degrees C.
What size wire to carry 8 amps at 120 volts?
A # 14 copper conductor will be fine to carry 8 amps at 120 volts. This size conductor is rated at 15 amps.
How many output amps is a 45 kva transformer?
There is not enough information provided to answer. KVA is short for "Kilo Volt Amperes". That is, thousands of Volt Amps. In order to determine how many Amperes are flowing, you must know at what voltage it is operating. Amperes = 45,000 ÷ volts Bill Slugg
What size wire do you need to carry nineteen amps for two hundred feet at two hundred forty volts ac?
10 guage
Are all large motors three-phase?
Yes, most large motors are three phase. Usually single phase motors only go up to 10 HP. Larger than this and the wire size and contactors used to control the motors becomes extreme. For example a single phase 10 HP motor on 115 volts draws 100 amps. The same single phase motor on 230 volts draws 50 amps. The same 10 HP motor on three phase system draws the following amperage; 230 volts is a 28 amp draw, 460 volts is a 14 amp draw and 575 volts is a 11 amp draw. As you can see the higher the voltage becomes, the smaller the wire feeder size is needed and much smaller size contactor can be used to control the motor.
800 feet run for 50 amp service what size wire?
To answer this question the following is needed. The voltage of the circuit, whether single or three phase. To calculate whether additional de-rates have to be applied the type of wiring system should be stated, overhead, direct bury or conduit system. A single conductor single phase will need a #3 copper conductor and will limit the voltage drop to 2.93% when supplying 30 amps for 250 feet at 120 volts. A single conductor single phase will need a #6 copper conductor and will limit the voltage drop to 2.76% when supplying 30 amps for 250 feet at 240 volts. A single conductor single phase will need a #8 copper conductor and will limit the voltage drop to 2.16% when supplying 30 amps for 250 feet at 480 volts. A single conductor single phase will need a #10 copper conductor and will limit the voltage drop to 2.62% when supplying 30 amps for 250 feet at 600 volts. A single conductor three phase will need a #10 copper conductor and will limit the voltage drop to 2.84% when supplying 30 amps for 250 feet at 480 volts. A single conductor three phase will need a #10 copper conductor and will limit the voltage drop to 2.27% when supplying 30 amps for 250 feet at 600 volts. <<>> Single phase or 3 phase it doesn't matter. 30 amps is 30 amps.. Above your head or in the ground its still 30 amps.. 10awg is usually good for 30 amps but, with this voltage drop I would run 6awg.
How do you solve for the size of wire when the given is kva?
The V stands for volts and A is amps. If for example you have a 12kVA device and are running off a voltage of 120 volts then Amps = 12000/120 = 100. You then use the calculated amps in a wire size table to get the correct size.
If you have a circuit breaker box containing 650 amps of circuit breakers it is 3 phase 480 volts what size kva generator do you need?
The question isn't the number of amps total on your branch circuits, but rather, what your MAIN breaker(s) are rated at. This will determine what size of generator you will need. And be certain that the generator is 3-phase. <<>> The formula you are looking for is Amps = kva x 1000/1.73 x voltage.
What effect are there when resistance is increased in the size of the current?
Current is inversely proportional to resistance. If you double the resistance, you halve the current. Ohm's Law: Volts = Amps * Ohms Solve for Amps: Amps = Volts / Ohms
Are fuses sized on amps and volts?
Fuses are rated in Amps. Although the physical size of a fuse is to do with volts; the further the terminals are apart the less likelihood there is of 'sparkover' between them.
How many amps does a one horse power motor draw?
depends what the source voltage isone horsepower equals to 746watts (assuming 100% efficiency)746 watts divided by voltage source equals current (amps)AnswerIn countries, such as the USA, where the horsepower is still used as a means of measuring power, it is always used to measure the output power of a motor.So, in order to determine the current drawn by the motor, you will first need to find out its input power. The input power is the output power divided by the machine's efficiency. Once you know its input power, then you can find its current by dividing the input power by the supply voltage. In practise, you will need to use a wattmeter to determine its input power.
What is the wire size for 50 feet distance 120 volts 12 amps?
For a 50 feet distance with 120 volts and 12 amps, you should use a 14-gauge wire to ensure electrical safety and efficiency. A 14-gauge wire is rated to handle up to 15 amps for household wiring applications.
