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230v 230v In a transformer with a primary connected to 480V Delta and a secondary connected in 480V Star connection, the coil voltages to the star point (ground) are 277 volts 480 / 1.73 = 277 volts. Other star connections are 208/120 (208/1.73 = 120V), 600/347 (600/1.73 = 347V). Because the phase angles are not 180 degrees apart they are not additive, they are 120 degrees apart which is why 1.73 factor comes into play.
Wiki User
∙ 15y ago
Wiki User
∙ 14y agoAnswer for USA, Canada and countries running a 60 Hz power supply service. It is a common electrical system that is used in commercial and industrial installations. In the US the voltages supplied are three phase, wye connected 480/277 volts. In Canada the voltages supplied are three phase, wye connected 600/347volts.
Wiki User
∙ 6y agoA type of electrical supply.
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Is there single phase 460V?
Yes, assuming the panel is 460 volt, three phase. You will need to supply a 2-pole breaker of the proper current rating. The breaker installs on any two adjacent phases, such as A-B. Any two phases of 460 volt, three phase power will yield 460v single phase.IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOBSAFELY AND COMPETENTLYREFER THIS WORK TO QUALIFIED PROFESSIONALS.If you do this work yourself, always turn off the powerat the breaker box/fuse panel BEFORE you attempt to do any work AND always use a meter or voltage indicatorto insure the circuit is, in fact, de-energized.
How many amps equal 3000 watts at 460 voltage?
6.5 amps
How many wires are used for a 460 volt circuit breaker?
If the load is single phase and the load requires 460 volts to operate, then two conductors will be needed and they will connect to a two pole breaker. If the load is three phase and the load requires 460 volts to operate, then three conductors will be needed and they will connected to a three pole breaker. The sizing of the wires will depend upon the current that is drawn by the loads.
Is 277 volt the same as 220 volt?
First, it's 277/480 and 120/240. But you're trying to relate what I call in the trade 'high voltage' 3 phase and 'low voltage' single phase.Let's make it easier, with 'low voltages' only: you want to know the difference between 120/208 (3 phase) and 120/240 (split single phase).First, look at your power source. Commercial services are often 3 phase, meaning you are using all 3 phases of generated AC in the building service. (look up AC generation for more information).Residential services are really only using 1 of those 3 originally generated phases. Let's say a subdivision is made up of 30 houses, there will be approximately 10 houses on each phase from the power company to keep the load balanced.On the ground somewhere (if underground service) or on a pole (overhead service) there is a transformer that converts single phase to split single phase. Some people incorrectly call this two phase power. Keep in mind you only have one phase from the power company's generator.Split single phase enters a residence as two 120 volt conductors, and a neutral conductor. This is done by the pole or ground transformer's center tapped secondary winding. (Google this for more info) This center tap is actually where the neutral conductor is connected, and the two ends of the winding are where the 120v conductors come from.A measurement from hot wire to hot wire in a residence produces about 240 volts, the sum of the two 120 volt legs. In fact, this is how your large electrical appliances operate. Your receptacles are connected to either 120v leg and a neutral.Commercial services are actually simpler to explain. The power company produces 3 phases of power at very high voltages (to aid transmission over long distances), and those voltages are periodically stepped down lower the closer they get to a building's service entrance. As with the example earlier, there will be a ground mounted or pole mounted transformer that does a final step down before the wires enter the building.When they do enter the building, they are the same 3 phases generated miles away at the power company. The difference is they aren't stepped down as low as residential services. Commercial services come in at 277 volts phase to ground, or 480 volts from phase to phase. Inside the building, there are more transformers that produce the 120 volt 'household' voltages for receptacles by stepping down even further.Notice that in the residential example, the voltages are 120v phase to ground and 240 volts phase to phase. (Exactly double)In the commercial example, the voltage is 277v phase to ground and 480v phase to phase, or 120v and 208v (depending on if you are talking high voltage or low). The multiplier here is not 2.0, it is 1.73, due to a different type of transformer used. I won't explain this in detail though. If you want to understand this, you need to do your homework.Long winded, but if this question was easy to explain and understand, everyone could be an electrician overnight!If you don't know what you are doing three phase will kill you dead in half a second, so don't mess with it, call a professional.The 220V takes a phase from the 440V 3 phase, to neutral to give you single phase.Say you had Red Yellow Blue, then take the Red phase (live) and a neutral and you will have half the 440VTo understand 277 3 phase and 440 3 phase you need a knowledge of how AC electricity actually works.The two live power lines of single phase power in a house come from a single pole transformer. They are 180 degrees out of phase, due to the grounded center tap in the transformer winding.The three phases are actually produced at the generator. They are sent down a set of three live wires and one neutral wire. Those are the wires you see on high tension power lines. There is always a multiple of three wires on big insulators, plus one ground wire. Three transformers are needed to step down the power for distribution, and three pole transformers feed the industry the three phases.The three phases are 120 degrees apart from each other. This makes the sum of the currents in the three hot wires equal to zero. The currents flowing in one direction exactly equal the currents flowing in other direction in other hot wires. If the three phase system is properly loaded, no current flows through the neutral.Three phases are the perfect source for a heavy motor. The three phases naturally provide a rotating magnetic field. A single phase motor needs a capacitor or shading coils to make the magnetic field rotate. And to reverse a three phase motor, a switch trades two of the phase wires.The 120 degree difference in timing between the phases is why the voltages of two phases do not add to twice the voltage. Due to the phase difference, two 120 volt phases produce 208 volts, and two 277 volt phases produce 480 volts.The 440 or 480 confusion exists because there is also 440/760 three phase power available.ANSWER:You need to think of the relationship between the voltages in terms of vectors. Start at a point in the center of your paper and draw 3 lines originating from that point 120 degrees apart (Like a clock with one hand at the 12, another at the 4 and a third at the 7 - Approx). Each line should be the same length and end with an arrow pointing out. Now draw three dotted lines connecting the three arrow heads together. These dotted lines represent the potential (voltage) between each hot leg of the 3 phase system... So pick one (480V, 240, 208, [400 Europe]) and label your dotted lines with this voltage. The dot in the middle of your drawing = ground and we are interested what the voltage to ground is going to be.Time for some trig! We know the angle between our 3 arrow lines is 120 degrees and we know the line opposite that angle = (Your voltage) mine is 208V. We are looking for the voltage of the adjacent line to my 120 degree angle, so we use the TAN function to give us the ratio between these two sides TAN of 120 degrees = -1.732. Since we don't care about the vector location, I can eliminate the "-" sign and call it 1.732. Since TAN = Opposite / Adjacent I can write the equation: 1.732 = 208 / Adjacent then 1.732(adjacent) = 208 then adjacent = 208 / 1.732 or adjacent = 120.09V. As you can see, 208 3phase was chosen for the availability of our common 120v single phase.If you do the same calculation on 480V, you end up with 277V to ground. This is why you see so many light ballasts rated for 208/277V. If you run the calculation at 400V you get 240V to ground - the common European single phase voltage.
What is the amp load of 125 hp 480 volts 3 phase motor?
The electrical code states that a 50 HP 460 volt three phase motor draws 65 amps. The ideal amperage would be taken from the motors nameplate as different motors of the same horsepower will have different amperage's depending on what they are designed to do.
What is the measurement on a 460 volt 3 phase circuit from 1 leg to ground?
The formula you are looking for is 460 divided by the square root of 3 (1.73).
What household current do you need to power 460 volt motor?
There is no household current with which you can power a 460 volt motor.Normal US household power is 120/240VAC split phase. (Other countries have different configurations, but the answer remains the same.) Without a transformer, and a substantial power flow, you are not going to develop the voltage necessary to run a 460 volt motor. Even if you could generate that voltage, you still only have one phase available, and most 460 volt motors require three phase power.You could do this with an inverter, or a motor-generator set, but to be blunt, you are asking about a commercial application, not a household application.
What is the measured Voltage between L1 and Earth on 3 phase system?
Wouldn't this depend on the voltage of the system? Like if it is a 460 or 208v system it would be 208 or 460v. There should be 3 lines L1 L2 and L3 all measure the input voltage. The wye or star point voltage on a three phase system is the square root of three. This number (1.73) is divided into the three phase voltage to get the voltage to neutral (ground). 208/1.73 = 120 volts, 415/1.73 = 240 volts, 480/1.73 = 277 volts, 600/1.73 = 347 volts.
Is there a single phase 460 volt variable speed control?
No you need a Roto Phase
Is there single phase 460V?
Yes, assuming the panel is 460 volt, three phase. You will need to supply a 2-pole breaker of the proper current rating. The breaker installs on any two adjacent phases, such as A-B. Any two phases of 460 volt, three phase power will yield 460v single phase.IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOBSAFELY AND COMPETENTLYREFER THIS WORK TO QUALIFIED PROFESSIONALS.If you do this work yourself, always turn off the powerat the breaker box/fuse panel BEFORE you attempt to do any work AND always use a meter or voltage indicatorto insure the circuit is, in fact, de-energized.
Where is the voltage regulator on a 1987 f-250 with a 460?
voltage regulator on 1987 ford f250
How do you measure 3 phase voltage?
Three phase voltage can be measure line to line (L1-L2, L2-L3, or L1-L3) with a quality digital voltmeter. In the United States, typical 3 phase voltage is 208-230VAC, or 460-480VAC measured line to line. Line to ground or neutral with a 208-230V system will yield 110-120VAC, which provides standard household power for things like televisions and microwave ovens.
Well Pump Installation?
form_title=Well Pump Installation form_header=12353 Are you in need of single or three phase power?*= () Single phase () Three phase () Don't Know Do you know the voltage of you power supply?*= () 155 volts () 208 volts () 230 volts () 460 volts () Don't Know () Other
What ground clearance does the 2014 Lexus LS-460 have?
The ground clearance of the 2014 Lexus LS-460 is 0 ft. 5.1 in. (5.1 in.).
What ground clearance does the 2011 Lexus LS-460 have?
The ground clearance of the 2011 Lexus LS-460 is 0 ft. 5.5 in. (5.5 in.).
What ground clearance does the 2008 Lexus LS-460 have?
The ground clearance of the 2008 Lexus LS-460 is 0 ft. 6.1 in. (6.1 in.).
What ground clearance does the 2013 Lexus GX-460 have?
The ground clearance of the 2013 Lexus GX-460 is 0 ft. 8.1 in. (8.1 in.).
