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What wire size do you need for a 3phase 90amp 60hz 220v?
Wire size is based on the amperage capacity of the service it is feeding. You tell me the service amps and I can tell you the wire size.
What is the minimum amps for a 220 outlet?
The gauge of wire is referenced to the capacity of a wire to carry amperage and has nothing to do with the voltage. The voltage of a wire is determined by the type of insulation that surrounds the wire. The size of the wire is determined by the amperage of the load and the distance from the supply.
How many ampere in 85 watts fan motor?
To calculate the amperage, you can use the formula: Amperage (A) = Power (W) / Voltage (V). If you know the voltage the fan motor operates at (e.g., 120V), you can divide 85 watts by the voltage to find the amperage. In this case, if the voltage is 120V, then the amperage would be approximately 0.71 A.
What size ground wire should you use on a 1200 amp service?
You need to say whether it's a 150 amp service or a 1200 amp service it has to be one or the other. <<>> A 1/0 copper conductor with an insulation factor of 90 degrees C is rated at 155 amps. There is no ground wire stated for a 150 amp service so the next size up is a 200 amp service. The ground wire for this size is #6 bare AWG. Without knowing what types of loads that are coming off of the distribution a reduced neutral can not be recommended. The neutral will be the same size as the service conductor which is 1/0.
How much current will flow in service wire?
In a service drop conductor the only limiting factor is the first over current device down stream from the service.
What is the service factor of motor?
service factor of motor is 1.00 or 1.15 . almost all electric motors rated at 1.5 horsepower or more have a service factor of 1.15 or greater. a motor with a 1.00 service factor is usually a very small motor like an exhaust fan in residential bathroom. if a motor has 1.00 service factor all that means is that it can only operate at 100% of its rated amperage. a motor with a 1.15 service factor can periodically be run at 115% of its rated amperage without damaging the motor.
What is the difference between Full load Amps and Service Factor Amps on an electric motor?
Full load amps is the amperage at which the motor was designed to work at to achieve its rated horsepower. Service factor amps is the amount of a periodic overload at which a motor can operate without overload or damage. Continuous operation within the service factor amps will shorten the insulation and motor bearing life of the motor as the motor will be operating at a higher temperature than it was designed to.
What is the minimum size neutral for three sets of parallel 500kcm copper conductors for a service?
On large service entrance services the neutral can be reduced. The amperage of the service and the voltage of the service and the insulation factor of the 500 MCM conductors need to be stated to answer this question correctly.
Is amperage a factor in electric billing?
Yes, two values are used, amperage and voltage. The product of amps times volts is watts. It is the amount of kilowatt per hour used that the utility bill is based upon.
How is cable size calculated when given the HP rating?
Wire sizing is based on the amperage. The formula you need to find amperage from HP for single phase is, I = HP x 746/E x %eff x pf. For three phase 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.I = Amperage, E = Voltage.When you have calculated the amperage ask a electrician to look up the wire size for that specific amperage. He should have a code book and there is a list of wire sizes and amperages. The quickest way of finding the amperage is by looking on the motor's nameplate. There you will find all of the information that you need.
What are the Factors increase in service businesses?
Labor productivity, quality of the service rendered, and machinery are the factor increase in service businesses. Customer service is another factor.
How much is the amps to run a three phase motor?
To find the amperage of a three phase motor, the following equation needs to be used. Amps = HP x 746/1.73 x Volts x % efficiency x power factor. once all of the values are added you can find the amperage of any Horsepower motor at any three phase voltage. 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.
How do you calculate gearbox service factor?
Service factor is gearbox horsepower rating over motor horsepower.
How do you calculate the amperage given the watts and voltage?
Amps = Watts / (Volts x Power Factor). The Power Factor is one for resistive loads and decreases for inductive loads like motors.
Can you run a motor of greater amperage draw with a motor of less amperage draw?
It looks like you are asking if a higher amperage motor can replace a lower amperage motor. It depends on what the amperage difference is. If the amperage is high enough to move the capacity of the wire out of its rated value then it should not be done.Remember motor conductors have to be rated at 125% of the motors nameplate amperage. As the amperage increases so does the HP and the motor's protection will also have to be increased or the motor will trip the lower overload protection settings.Also keep in mind that if the motor is three phase, running a motor with higher HP on a load that does not need the extra HP, it will lower the power factor of the supply distribution.
What size breaker do you need for 9000W at 440V 3phase?
This formula will give you the amperage I = kw x 1000/1.73 x E x pf (pf = power factor). Take the amperage and multiply it by 125%. This will give you the breaker size that you need.
What size wire is required for 277 volt fluorescent lighting?
Wire size is governed by amperage not voltage. Voltage is an insulation factor when talking about wire. Add up the amperage of fixtures you want in the circuit. Once that is found then the size of the wire can be calculated.
