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It is typically accepted to be 440 to 500, based on 110 to 125V for common power outlets.

This is based on experience in the USA with 60Hz power supplied by utility companies.

Since 3-phase is mentioned, you should also state if this is delta or wye configuration, and whether you are measuring from phase to phas or phase to neutral.

For a more competent answer, an electrician should refine this answer, or you could look up the relevant standard, probably an ANSI standard.

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Q: In 480 volt three phase what is the tolerance of the voltage?
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Can you run a 570 volt motor on 480 volt three phase power supply?

No, the voltage difference is too much. A 570 volt motor falls in the 600 volt range which is separate from the 480 volt range of three phase systems.


What is the total of a phase to earth voltage on 11000 volts?

An 11,000 volt three-phase supply has a voltage of 6351 from live to neutral, when there is a neutral wire.


What is the benefits of using 277 volt electrical equipment?

with 3 phase lighting you do not have to use as large of wire and can use one neutral for every 3 current carrying conductors so it cut down on material costs ( as voltage increases current decreases) <<>> The voltage 277 is the star-point voltage of a 480 volt three phase system. By using a 480 volt wye system you have the dual ability of running 480 volt three phase equipment along with 277 volt lighting. The side advantage is the ability of using the phase voltage to ground (neutral) 480 / 1.73 = 277 volts for general lighting of the building the 480 volt equipment is located in.


Why is it stated - 3 phase 440 VAC when one phase voltage is 220 VAC?

In three-phase there are three live wires and a neutral. The voltage of a three-phase system is always quoted as the live-to-live voltage, and the voltage from one live wire to neutral is 57.7% of that. A 440 v 3-ph system has 254 volts between live and neutral. <<>> The question statement is not correct. Two legs from a three phase three wire 440 volt system will still be 440 but classed a single phase. On a three phase four wire system supply, the voltages will be determined by the following equation. 440/(square root of 3) 1.73 = 254 volts. The second single phase voltage attainable from this source connection is any one of the three phase legs to grounded neutral center point. This is known as a wye or star point connected voltage supply. To obtain a 220 volt single phase voltage, the three phase system would have to have a voltage of 220 x 1.73 = 380 volts.


How many volt each phase in three phase?

600 volts between any two wires. The phase has nothing to do with voltages, only current relationship.

Related questions

Can you run a 570 volt motor on 480 volt three phase power supply?

No, the voltage difference is too much. A 570 volt motor falls in the 600 volt range which is separate from the 480 volt range of three phase systems.


What is the total of a phase to earth voltage on 11000 volts?

An 11,000 volt three-phase supply has a voltage of 6351 from live to neutral, when there is a neutral wire.


In a three phase four wire wye system having 277V for lighting the three phase motors operate on what voltage?

480 Volt


What transformer do you need if you have primary voltage of 600 3 phase and require 240 volt 1 phase?

A single phase 600 to 240 Volt transformer using two phases of the three phase primary.


Can you connect a 277V ballast to 208V line service?

No. A 277 volt ballast needs the correct voltage to operate. The 277 voltage is derived from the star point voltage of a 480 volt three phase system (277/480). The 208 voltage is a three phase line voltage whose star-point voltage is 120 volts (120/208).


What is the voltage for Sweden?

Outlet for standard electronics is 230 Volt , 50HzThe master feed into Swedish houses is 400 Volt three-phase , 50Hz.When 400 Volt three-phase is split in three single phases it becomes threesingle 230 VoltBigger appliances , e.g Washing-machines, dryers, stoves, used to be400 Volt three-phase, but nowadays most washing-machines and dryersare built for 230 Volt single-phase.


What is voltage phase to phase 380 3 phase?

let me clear difference between phase voltage and line voltage. phase voltage is measure line to neutral and line voltage is measure line to line.there is correct answer that 380 volt is sum of multiply of square root 3 to phase voltage 220 volt.phase volt line volt220 volt x 1.732 = 381 volt230 volt x 1.732 = 400 volt240 volt x 1.732 = 415 voltM. Asif ALi


What is the benefits of using 277 volt electrical equipment?

with 3 phase lighting you do not have to use as large of wire and can use one neutral for every 3 current carrying conductors so it cut down on material costs ( as voltage increases current decreases) <<>> The voltage 277 is the star-point voltage of a 480 volt three phase system. By using a 480 volt wye system you have the dual ability of running 480 volt three phase equipment along with 277 volt lighting. The side advantage is the ability of using the phase voltage to ground (neutral) 480 / 1.73 = 277 volts for general lighting of the building the 480 volt equipment is located in.


Can you run a three phase appliance on 240 volt power supply?

No. You need a 3-phase supply that matches the voltage and current rating of your appliance.


Why is it stated - 3 phase 440 VAC when one phase voltage is 220 VAC?

In three-phase there are three live wires and a neutral. The voltage of a three-phase system is always quoted as the live-to-live voltage, and the voltage from one live wire to neutral is 57.7% of that. A 440 v 3-ph system has 254 volts between live and neutral. <<>> The question statement is not correct. Two legs from a three phase three wire 440 volt system will still be 440 but classed a single phase. On a three phase four wire system supply, the voltages will be determined by the following equation. 440/(square root of 3) 1.73 = 254 volts. The second single phase voltage attainable from this source connection is any one of the three phase legs to grounded neutral center point. This is known as a wye or star point connected voltage supply. To obtain a 220 volt single phase voltage, the three phase system would have to have a voltage of 220 x 1.73 = 380 volts.


In a 3 phase 480 panel what voltage should you get phase to phase?

The voltage you are referring to is a 'line-to-line' voltage ('line voltage'), as there is no such thing as a 'phase-to-phase' voltage.480 volts. In real life, the voltage will vary slightly by up to 3% (14 V) on a properly sized circuit. Line to neutral will measure 277 volts, plus or minus 3%.


What is the voltage of a 3 phase 4 wire 277 volt lighting circuit?

The voltage of 277 volts is the wye of a three phase 480 volt system. Just as the voltage of 347 is the wye voltage of a three phase 600 volt system. To obtain these voltages for any three phase system, take the three phase voltage and divide it by 1.73. 480/1.73 = 277 volts, 600/1.73 = 347 volts.