0
Commercial lighting. In a facility where 3 phase 480 volts is needed for machinery, 277 is also readily available because each leg of 480 to ground is 277 volts. This way numerous supply Transformers are not needed in a commercial building.
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
What voltage reading would you get from a 277 480 volt system?
From a three phase four wire distribution system the voltages would be as follows. From L1 to N - 277 volts. From L2 to N - 277 volts. From L3 to N - 277 volts. From L1 to L2 - 480 volts. From L2 to L3 - 480 volts. From L3 to L1 -480 volts.
Will a switching power supply work on 277 volts?
Not unless it is rated for that voltage. You can likely find a step down transformer from 277 volt sto 120 volts.
What is 277 volts?
277 volts is the Hot to Neutral voltage in a 277/480 volt 3-phase "Y" electrical system. This is a commercial and industrial application voltage. The purpose of using higher voltages in these applications is to supply higher power levels [watts or kVA] than at lower voltages for the same size of conductor. <><><> A 277 volt service is used for industrial lighting. <><><> A 480 volt 3-phase power service is common in factories in USA and other countries which use 60 Hz ac electrical services. If you use the 480 volt service lines in the 'star' or 'Y' configuration you will have a central neutral point to connect a neutral line. You can then get a 277 volt single phase service by using one of the three phase lines along with that neutral
Can you get 120 volts from a 480 volts 3 phase Y generator?
NO, the 480 Volts Y -- is 4 wire system, with three wires which are hot legs @ 480 volts between each three hot legs. A mid tap is a neutral leg (ground) the white wire. Which gives 277 volts between it and any of the three hot legs. so a 4wire 480 volt Y system. Gives 480 /277 volts.
How many wires needed for 220 volts ac though emt?
Two wires are needed for 220 volts.
How do you read 277 volts on meter?
To read 277 volts on a meter, simply ensure the meter is set to the appropriate voltage scale (typically AC). Then, connect the meter leads to the circuit or outlet you are measuring. The display should show the voltage reading, which in this case would be 277 volts. Be sure to take appropriate safety precautions when working with electricity.
What voltage reading would you get from a 277 480 volt system?
From a three phase four wire distribution system the voltages would be as follows. From L1 to N - 277 volts. From L2 to N - 277 volts. From L3 to N - 277 volts. From L1 to L2 - 480 volts. From L2 to L3 - 480 volts. From L3 to L1 -480 volts.
Is 277 volt one hot wire?
No, 277 volts is the line to neutral of a 480 volt wye three phase system. L1- N, L2 - N and L3 - N will give you 277 volts. L1 to L2. L2 to L3 and L3 to L1 will give you 480 volts.
How do you calculate the ac amps when you have the DC volts DC amps and the ac volts?
the answer is dc volts are rectified from ac volts and the amperage will be the same unless you account for the slight drop from the rectifier. dc volts from a battery have no relationship to ac volts. you can derive ac volts from a dc source using an inverter.
Can you convert a 277 volt ac unit to 230 volt?
It is not recommended to convert a 277 volt AC unit to operate at 230 volts as it can lead to potential safety hazards and void the warranty. It is best to either use a transformer to step down the voltage from 277V to 230V or replace the unit with one designed to operate at 230V.
Will a switching power supply work on 277 volts?
Not unless it is rated for that voltage. You can likely find a step down transformer from 277 volt sto 120 volts.
In WYE 480VAC each leg to neutral is equal to how many volts?
In a WYE 480VAC system, each leg to neutral voltage is approximately 277 volts.
Can you get 110 volts from 277volts?
The voltage of 277 is the wye connection of a 480 volt three phase supply. The only way to reduce 277 to 120 volts is with a step down transformer.
How do you come up with 277 volts?
The star point or wye voltage of a 480 volt three phase four wire system is 277 volts. The 480 voltage is divided by the sq root of 3 (for 3 phases). The sq root of 3 is 1.73. 480 volts/1.73 = 277 volts. The same formula is used on all three phase four wire systems. 208 volts /1.73 = 120 volts, 416 volts /1.73 = 240 volts, 600 volts / 1.73 = 347 volts.
How can 240 vOLTS power a 277 vOLT light?
Slightly dimmly
Is a converter considered ac out put volts?
is an 120 volt ac converter that we are using for 12 volts considered AC output power.
What is a 277 volt fluorescent fixture?
A 277 volt lighting fixture is one that is usually used in an industrial application. The reason for this is the voltage rating. A voltage potential of 277 volts is the voltage to neutral (ground) of a three phase four wire 480 volt distribution system. 480 volts / 1.73 = 277 volts. Rather than having to add a transformer to the system to provide 120 volts for lighting, manufactures produced a ballast for fluorescent fixtures that operates on the 227 volt potential.
