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What size wire do you need for a 208 volt 3 phase load that draws 10.5 amps?
Wiki User
∙ 9y ago
The size of conductor needed will be a #14. It should be copper and have an insulation factor of 90 degrees C. The fact that it is a three phase load does not enter into the calculation of the wire size.
Wiki User
∙ 8y ago
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What wire size for 3 phase 460 volt 30 amps?
A breaker is sized by the load current. A breaker is used to protect the load feeder from an over current being applied to the conductor. If the load draws up to 30 amps, the wire size needs to be a #10 copper conductor or larger depending on the distance to the load with an insulation rating of 90 degrees C. The 460 volt source has to do with the insulation rating of the conductor. In this case the #10 conductor will need an insulation rating of 600 volts. Do not use 300 volt rated wire.
How many amp do you need to run a house?
Minimal 100. Depends on load draw of home. Can be 200 amps or 400 amps as well.
How to Calculate three phase watts with unbalanced phase current?
You will need to determine the power per phase, and add them up to give the total power of the three-phase load. To do this, you will need to multiply the phase-voltage by the phase current by the power factor -for each phase.
Do I need more then 70 kVA 3 phase power supply for a 4 sunbeds in a tanning salon?
You don't need three-phase power; tanning beds run on single-phase. You've got enough amps.
Can you use 10 AWG wire to run 6000 watts of light drawing 30 amps?
I'm assuming the electrical system is single phase, such as a home. If not, you need to hire someone to do the work for you. First, 6000 watts at 120v is 50 amps, so if your load is truly 6000 watts, 30 amps isn't enough. If your 6000 watts is 240v, which would draw 25 amps, then 30 amps is plenty. Ten gauge wire may not be placed an a breaker or fuse larger than 30 amps.
How many amps does a 18000 watt generator supply at 240 volts?
75 Amps theoretically Need to know if the generator is 3 phase or single phase.
What circuit breaker rating do you need for a 3 phase electric motor?
The circuit breaker is sized to the full load amps of the motor times 250%.
What size diesel generator would you need if there was a power outage?
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.
What size of circuit breaker do you use for 25amperes induction motor?
Read the specification plate on the motor to determine the amount of current that the motor uses, as well as the voltage and phase. Most likely, it will be a 3 phase motor, so you can't simply connect it to your house wiring, but without sufficient information, it is impossible to tell you all of the specifics. <<>> The code book rates the amperage of a three phase 40 HP motor by different voltages. at 200 volts - 120 amps, 230 volts - 104 amps, 460 volts - 52 amps and 575 volts - 52 amps. A breaker for a motor has to be sized to 250% of the motors full load amps. Also the wire size for a motor has to be 125% of the motor full load amps.
How do you calculate the power rating of three phase induction motor when name plate is not available?
For a 3 phase motor, the voltage is 415. Being an inductive load the power factor is commonly .85 The constant for 3 phase circuit is 1.732 You need to run the motor on no load and you use clamp meter to take the no load current. In considering the fact that on no load the measured current should not be more than 0.5 of the rated. Assuming , under normal condition the no load current is 10 amps. Then the load current will be 20 amps. Then from above and in using the formula P=I*V*p.f*1.732 Therefore P= 20*415*0.85*1.732. P=12.3 kw Thank you. Bankole 2348035447224
How do you calculate 3 phase kWh of wye connection measuring amps on each phase?
For a balanced load, you don't have to worry about phase values when you want to determine the power (or, in this case, the energy), whether delta or wye. Rather, you always use line values:P = 1.732 VL IL cos (phase angle)For an unbalanced load, however, you need to measure the phase voltage and phase current and power factor for each of the three phases, and add them together:P = [VpIp cos (phase angle)]phase A +[VpIpcos (phase angle)]phase B+[VpIp cos (phase angle)]phase CTo then calculate the energy expended in kilowatt hours, you need to multiply the total power (as calculated above), expressed in kilowatts, by the time for which the load is operating, expressed in hours.
What type of amps do you need for 900watts?
Current equals power divided by voltage, so with 110 V across the load, a 900 W system draws about 8.18 A (if the voltage potential is double, 220 V, the current is half, 4.09 A).
Is the power rating the same for a load running on single phase or three phase ac?
The power rating is measured in kilowatts and it does not depend on the type of supply. A load of a given power is more efficiently supplied with 3-phase because the current is less and the wire is thinner. For example a 120-kW load at 240 v requires 500 amps, but the same 120 kW could be supplied with a 3-phase 415 v supply at a current of 167 amps. This would need three wires instead of two, but much thinner wires. In the UK and Europe that kind of supply is technically available at most properties.
How do you calculate load in KW?
You have to know 2 things in order to perform the calculation. You will need to know the power (KW) and either the amps or the voltage. If you know voltage you can determine amps and if you know amps you can determine voltage. However with solely the KW you do not have enough information to calculate either. Here is the formula: 1 Phase: KW = (E x I x pf)/ 1000 3 Phase: KW = (1.732 x E x I x pf)/1000 Where E is voltage, I is current, and pf is Power Factor
Do you need only a watt-meter in a three phase power?
To measure the power of a three-phase load, you need to use one less wattmeter than there are conductors supplying that load.
What wire size for 3 phase 460 volt 30 amps?
A breaker is sized by the load current. A breaker is used to protect the load feeder from an over current being applied to the conductor. If the load draws up to 30 amps, the wire size needs to be a #10 copper conductor or larger depending on the distance to the load with an insulation rating of 90 degrees C. The 460 volt source has to do with the insulation rating of the conductor. In this case the #10 conductor will need an insulation rating of 600 volts. Do not use 300 volt rated wire.
Why do you need 20 AMP power outlet?
To apply power to a load greater that 15 amps and smaller than 30 amps.
