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240 volt delta systems were used a lot in automotive garages and small manufacturing facilities. This system works great for motor loads because of the phase to phase voltage of 240 vac, motors run better (lots of motors were manufactured to operate on 240 only) on the higher voltage compared to 208 vac. Also the availability of 120 vac on the same system was a plus, however on a delta system you have one phase with a higher voltage to ground (high leg) usually about 190 vac. You have to be careful not to use this phase in certain applications.
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Can you use 240 volt 3 phase to run a machine that is 240 volt single phase?
Yes, if the motor is rated 240 volts 3 phase.There is such a thing as 240 volt 3 phase power.However if you are asking if you can use 240 volts single phase on a three phase motor, then the answer is no.
Can 1 phase be used with 3 phase?
If you have a 208Y/120 volt 3 phase system, you can use any one of the three phases (hot or ungrounded conductor) with the neutral for 120 volt load or you can use any two phases of the three phase for a single phase 208 volt load. If you have a 120/240 volt 3 phase system, you can use any two phases of the three phase for a single phase 240 volt load or you can use either the A phase or C phase with the neutral for a 120 volt load. You can not use the B phase with a neutral (you would have 208 Volts!).
How do you change 3 1phase transformer in to 3 phase?
Three-phase transformation can be obtained using two Transformers, by connecting them in what is known as an 'open delta' connection.
How do you use a one phase motor in place of a three phase motor?
To use a single/one phase motor instead of a three phase motor is possible if you have a three phase power supply as you will only need to tap one of the three phases together with neutral and an earthwire, however to use a three phase motor instead of a single phase will require the provision of three phase power supply.
How do you connect 480 vac three phase power to a 480 vac single phase transformer?
If the primary and the secondary windings of the three phase transformer are connected in delta, you cannot get a healthy neutral from it but why bother? You simply drive a rod into earth and use it as a neutral. Alternatively either the primary or the secondary windings must be connected as star and you use the common point as neutral.
Can you use 240 volt 3 phase to run a machine that is 240 volt single phase?
Yes, if the motor is rated 240 volts 3 phase.There is such a thing as 240 volt 3 phase power.However if you are asking if you can use 240 volts single phase on a three phase motor, then the answer is no.
What size wire do you need for a 200 Amp 240 Volt 3 phase 4 wire service on a doctors office?
You might be out of luck. Three phase delta 240 volt services are a thing of the past. As far as I know there never was a 240 volt three phase four wire. The line to neutral voltage would be 240/1.73 = 139 volts which is of no use to anyone. Three phase four wire system for business and commercial use these days is 120/208 volts. A 3/0 copper conductor with an insulation factor of 90 degrees C is rated at 225 amps.
Why delta connection is used in load side?
There are a number of advantages why three phase (delta or Y configuration) is preferred over single phase circuit. The best advantage is that the each of the three lines in a three phase circuit can act as single phase thus effectively getting three single phase circuits in one transmission. Another advantage is whether it's single phase or three phase, the generation is the same, therefore three phase has more practical value. Also, the instantaneous power in single phase falls to zero but in three phase system, the net power from all the phases is continuous.
What is a 240 volt 3 phase 3 wire grounded b phase system?
It's highly probably that the '240 V' refers to the machine's phase voltage. In which case, its line voltage will be 1.732 times larger -i.e. 415 V. Phase voltages are measured between any line conductor and the neutral conductor, whereas line voltages are measured between any pair of the three line conductors.
Can you use 600VOLT motor in 220VOLT supply through a transformer?
Usually with a voltage of 600 volts the motor will be three phase. To use a transformer with that motor you will need a three phase 240 volt service. These days utility companies are moving away from three phase 240 and substituting it with 120/208. The 208 three phase service has the added bonus that 120 volts can be obtained from the star point (grounded neutral).
How can you get 230v single phase from 240v single phase supply?
Most modern homes have 240 Volts supplied. The 240 volts are measured between the two main busbars in the electric panel. The way the panel is organized you just need a 240 breaker that spans both busbars. They are double the height of a 120 V breaker. If you have an electric dryer, stove or whole house air conditioner you are likely already using 240 V. If for some strange reason you don't already have 240 V then you would need a transformer rated to your intended use.
Difference between single phase and three phase?
Single phase power is one AC power source. Sometimes it is center-tapped (the term comes from the center-tap on the transformer secondary, which is grounded and called neutral) in which case it is called 120/240 VAC split phase, connectable as 120, 120, or 240. Sometimes, such as in Europe, it is 220 VAC, with one end grounded and (maybe?) called neutral. Sometimes, is is various voltages, one end grounded and called neutral, being one of three phases in wye configuration.Three phase power is three AC power sources that are 120 degrees out of phase with respect to each other. In the wye configuration, you have three hots, and one common, grounded, neutral. In this case, the loads are connected between each hot and the neutral. In the delta configuration, you have three hots, with no neutral, though there is still an ultimate ground reference someplace upstream so as to limit the maximum phase to ground voltage. In this case, the loads are connected between each of the three pairs of hots.In larger motors, you often have three phase delta, with a neutral. In this configuration, the motor is started in wye configuration, at 1/3 normal power, and then switched over to delta configuration once it reaches some percentage of normal operating speed.Single phase power is used for residential and light commercial/industrial services. Three phase power is used for heavier commercial/industrial services.In some intermediate services, you have a combined 120/240 VAC split phase, with 240 VAC three phase. While not in common use today, this configuration has one of the three phases center-tapped and providing a neutral, in what we call the quadraplex configuration. You have "residential style" 120/240 VAC with a neutral, and 240 VAC delta-only three phase. Wye is not supported, unless you use isolation transformers. This configuration can save the cost of a transformer. We used it in one of my previous employers, running the office building on the 120/240 VAC split phase, and running the light factory on the 240 VAC three phase, with the occasional 480 VAC three phase load begin supplied by 1:2 step up transformers.
What would be the effect on the neutral bar of a 3 phase D B if the main incoming neutral is lost?
A three phase delta system does not use a neutral in its operation.
Is 240 Volt 3 phase 60 Hz electricity available in Toluca Mexico?
There are still three phase delta 240 volt systems connected to the grid. Theyconsist of two smaller KVA transformers for two phase coils and a larger KVA transformer to complete the third phase. This larger transformer's secondary is center tapped to supply the split 120 volts to ground (neutral). To use a 240 volt wye system the voltage to ground would be 240 / 1.73 = 139 volts which is too high for North American standards. They are slowly being phased out by 120/208 systems. This allows for a three phase distribution and 208 / 1.73 = 120 volts to ground.240V is a common single split-phase voltage, not a 3 phase voltage. Did you mean 208V? 208 is a common 3-phase voltage.I'm not sure what's available in Mexico but you could just buy a transformer.
What is the standard voltage used in homes and businesses in New York City?
Standard household and business power in the entire US is 120V single phase and 240V double phase. Light industry will likely use 208V three phase, 240V three phase, 400V three phase, 415V three phase, or 480V three phase. Heavy industry and subway systems use higher AC voltages and sometimes DC.
What do you mean by star delta connection?
A star connection is one with 3 hot conductors returning power to a (usually grounded) common return (neutral) conductor. If the three hots are called A, B, and C, and the neutral is called N, then the three phases are connected AN, BN, and CN. If the star connection is balanced, (it must be, for efficient use of power), then the three hots are also equidistant from each other, though with a different voltage, so you could rewire as delta. (A typical 13.2kv system in the US is 13.2kv phase to phase, and 7.6kv phase to ground.) A delta connection is one with three hot conductors returning power to each other. Using the earlier convention, the three phases would be connected AB, BC, and CA. The ground connection is connected to the frame as a safety, but it provides no power. The choice between star and delta is one of design objective. If your load requires three phase power, then it cannot tolerate loss of even one phase. In that case, it would not matter if you chose star or delta, but you must consider the different voltage in each configuration. If your loads, such as in multiple and distinct star connections, do not require three phase power, then loss of one phase only affects one third of the system, but it you wired delta, then loss of that one phase leaves you with only one third of the system operational. If the neutral conductor is not balanced, such as in a quadraplex connection where there are three phases, with the neutral being at the 120/240 split phase point in the middle of one phase, then star connection is not possible. If you wanted star in this case, you would need three transformers with the primaries wired delta and the secondaries wired star.
Reverse running of three phase meter?
The reverse running of a three phase meter is possible when one of the meter's two potential coils fails. This is a problem found typically on a Delta service. A three phase meter in this condition is damaged and will report lower energy use than actual.
