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What wire size for 100 amp single phase 3 wire commercial service?
Wiki User
∙ 11y ago
2 copper
Wiki User
∙ 11y ago
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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
What size tech cable for 480 feet 100 amp?
This is a voltage drop to establish wire size question. For a correct answer to this question two values are needed. One value needed is the voltage and the other is whether it is three phase or a single phase installation.
What size wire and breaker for a 240 volt single phase 20 kw electric furnace rated at 83.3 amps?
AWG #3 copper.
Can you run two 2 pole single phase circuits in the same conduit?
Yes, this only adds up to four wires. The wire sizing is dependant on the amperage of the two single phase loads. Remember to calculate the conduit fill of the four wires to make sure that you have the correct size conduit for the installation.
How many volts from a double pole 15 amp breaker?
Answer for USA, Canada and countries running a 60 Hz power supply service. 230 to 240 volts on any size two pole breaker on single phase installations. The voltage varies from location to location from different utility power companies.
What are the size and door requirements for a 600 amp 240 volt single phase commercial electrical room?
The only requirement would be the distances in front and on the sides of the service boxes for access. 3 feet.
What size service conductors do you need for a single phase 600 amp commercial panel?
The size of wire for service entrance conductors for a 400 amp 3 phase service could be 500 MCM copper. This is very large size wire and difficult to bend and shape, to connect to terminals in the main disconnect and distribution panel. This problem is solved by using parallel conductors or on higher ampacities triple conductors. Using parallel conductors the wire size would be three ought (3/0) copper.
What size motor do you need to run a compressor 2 stage 80 gallon tank i have a 3 phase on it and want to change motor?
You probably need a 5hp or 7hp motor. Look for HP rating o the 3 phase motor and select the same for single phase. 3 phase has same power but is more efficient at electricity use. Also consider a 3 phase converter. It allows a 3 phase motor to run on single phase service.
Why you use only single phase and three phase supply?
Single phase requires 2 wires - a hot, and a return (both wires of the same size. Three phase requires three (same size), and if it is grounded will require a forth (doesn't normally carry current so it can be small). Two phase requires three wires (two phase conductors of one size, and a return that can handle double the current of the phase conductors), or four wires (same size for all, effectively two separate single phase supplies). It isn't economical is the bottom line. It costs ~the same (in wire) for two phase as three, and you get 50% more power delivering capability with three phase.
What size service conductors for a 225 amp 3 phase service?
4/0 copper phases and neutral
Can you replace a three phase motor 3 Hp RPM 1420 with a single phase motor for a planer?
Probably not. The single phase three horse power motor will be much larger in physical size than its three phase counterpart, and will probably not fit.
What is the standard voltage and amperage in Toronto Canada?
The standard home voltage connection is single phase 120/240 volts. The amperage is what ever the service size requires. For new homes it is usually 200 amps. For business voltages it usually is three phase 120/208, amperage demand governed by equipment. For new industrial and commercial buildings the voltages are three phase 347/600 volts, amperage demand governed by equipment. For old industrial and commercial buildings the voltages are three phase 277/480 volts, amperage demand governed by equipment. The three phase 277/480 systems are being phased out for newer 347/600 systems.
How do you determine the of wire size for a single phase 100 amp service?
I'd ask my local building inspection office. If anyone is going to know the safety issues involved, as well as the legal requirements, it will be them.
What size copper wire to use for a 100amp single phase three meter service feed from the riser?
A #3 copper conductor with an insulation factor of 90 degrees C is rated at 115 amps.
Can you run single phase on three phase?
Yes, you can use one of the three phase service lines to run the single phase device. However, before you connect it, you must first make sure that both the voltage and the current rating of the device will be suitable for the single phase service that your new connections to the service wiring will produce.The single phase voltage you will get between any one phase line and the neutral point is less than the voltage between any two of the three phase service lines by a factor of 1/1.73. So, because 415/1.73 is about 240, a 415V 3-phase service will produce a single phase voltage of 240V.If you are in one of the many countries which use split single phase wiring - such as USA and Canada - that 240V will actually be available as two 120V "hots" (usually with red and black colored insulation) balanced about the neutral point i.e. +120V / Neutral / -120V.Thus you can actually connect up a new branch circuit either for one 240V single phase device or two 120V branch circuits to supply power to 120V devices.After you have made sure that the current demanded by your single phase device can be supplied by the available 3-phase service, it is vital that you make sure you install the correct size of circuit breaker (voltage and ampacity) and branch circuit wiring having the correct wire size to carry the current load drawn by the single phase device, together with the correct types and sizes of socket outlets. All these details are specified in your country's national electrical codes or regulations.(1.73 is the square root of 3).As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.Before you do any work yourself,on electrical circuits, equipment or appliances,always use a test meter to ensure the circuit is, in fact, de-energized.IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOBSAFELY AND COMPETENTLYREFER THIS WORK TO QUALIFIED PROFESSIONALS.
What is the advantage of 3 phase system compared to single phase system?
3 phase motors are more efficient than single phase motors. That is why many factories use 3 phase, because they save on their electricity bills. However, it is more expensive to supply the wiring to bring in 3 phase electricity; so it is not used in residences.AnswerThere are three main reasons for generating three-phase electricity. The first reason is that, for a given load, a three-phase supply uses less volume of copper (around 25% less) and is, therefore, more economical than a corresponding single-phase supply. The second reason is that it delivers continuous energy, rather than in a series of 'pulses', which is the case with single phase. The third reason is that a.c. motors are self-starting and more compact than a single-phase motor of similar power rating.Incidentally, three-phase residential supplies are common in some countries, because service conductor size is lower, therefore less expensive, than the corresponding single-phase conductors.
What is the formula of 2 phase power?
The formula which are needed for making of a single phase transformeri.e o/p voltage,watt,current,turn,core size,coil number,bobin size etc
