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The same as a split single phase service, except with 3 phase panelboards, and the size of the service equipment can differ greatly. If the service voltage is 480v, you'll have to install your own Transformers to use 120v equipment. I'm not sure as to the purpose of this question. If you're trying to do it yourself, you probably shouldn't have to ask how. It's a pretty large thing to do. If you're just curious, the above answer should suffice.
Wiki User
∙ 15y ago
Wiki User
∙ 15y agoTo install a new electrical service you need to contact a licensed professional electrical contractor. that depends on where you live. but even where a licensed electrician is needed you can still do the grunt work. first determine where the service will enter the dwelling. next , after checking code determine where you will place your meter pan. it should be about 5- 5.5 feet above grade ( eyelevel) then attach mast, again make sure you meet requirements concerning height to the weatherhead.. the total feet above grade (usually 15 feet) and that you do not exceed the allowable height on the high side of the roof line ( usually 32-34 inches). then drop the three 4/0 aluminum cables down the mast and after coating the exposed ends, connect to the appropiate lugs the two hot and one ground. next drive a grounding rod at least six feet into the ground within one foot of the foundation and using an acorn nut connect to meter pan with copper cable. at ths point you would be ready for your first rough inspection
Wiki User
∙ 13y agoYou'll need to provide some more details. Is it 3 wire because you're running 240, are you discussing 2 power and 1 ground? Are you putting in 2 or more light switches on a circuit? Is it a fan with a light?
Too many variables to answer your question as asked.
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Is there an advantage to changing to a 3 phase system if we have no 3 phase motors or ACs in our load?
None what so ever. The cost of changing all of your equipment and new service would be high. The electrical bill is based on wattage used be it single phase or three phase.
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
How can you get 3 phase supply from single phase supply by using only transformers?
You cannot. By definition, the potential of each line must be displaced from each other by 120 electrical degrees, and this is only achievable from a three-phase source.
What wire size for 100 amp single phase 3 wire commercial service?
2 copper
How do you get 380 volt from 220 3 phase?
Only with a 3 phase transformer.
How can you get 3 phase connection?
If you have single phase now, you have two options. One, is to install a three phase service or Two, install a roto phase device.
What is the electrical engineering 3 phase?
The electrical engineering 3 phase is calculated by mathematics. The total active power is equivalent to three times the power of an individual phase.
Is there an advantage to changing to a 3 phase system if we have no 3 phase motors or ACs in our load?
None what so ever. The cost of changing all of your equipment and new service would be high. The electrical bill is based on wattage used be it single phase or three phase.
what is the cheapest electric supply cost single phase or 3 phase?
The cheapest service to construct is a single phase service. A three phase service requires more equipment and materials to complete a service.
How many wires come in from the weather head?
If single phase - 2 wire service > two wires If single phase - 3 wire service > three wires If three phase - 3 wire service > three wires If three phase - 4 wire service > four wires US residential service is usually single phase 3 wire service: Two hots and neutral.
What would cause a loss of a phase in a 3-phase electrical supply panel connected to a refrigeration system?
You have to follow the lines. Could be blown fuse or any number of other things. Follow it back to the service.
Will a 3 phase motor work on grounded B phase?
If the motor is connected to an ungrounded delta supply service there will be no effect on the operation of the motor. If the motor is connected to a wye system supply service and the B phase grounds out, the motor's overload protection would take the motor off line from the electrical supply.
Can you install 200 amp service Panel in washer Dryer closet?
No, you can not install a service panel in a washer/dryer closet. The National Electrical Code (US) requires you to maintain work space in front of the panel (3' deep and 30" wide)
Why is electricity generated as 3 phase?
It is more economical especially for running motors. Most motors start much better with 3 phase service. It also takes less current than single phase for a motor to run, therefore the power meter spins less for electrical cost.
Can you use a 3 phase pressure washer off a house electrical system?
No, because household electrical systems are only comprised of a single phase.
When connecting a external generator 3 phase to an existing 3 phase electrical network how do you know that the 2 systems are in phase?
use a rotor phaser or simply connect a 3 phase motor and check dirrection
Can you plug a 2 phase welder on a 3 phase plug?
No. Three phase service is something that you would need to request from your power company. You'd need to not only have service, you also need to have an electrician run 3 phase service into your home.
