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Three phase means just that- three phases in the windings of the motor. Therefore three leads (outputs) are used to supply power. A lot depends on the number of wires coming out of the motor. In large industrial motors, you can have 9 leads. The wiring of the motor depends on the application- the motor will either be wired in series (leads 1-4-7, 2-5-8 & 3-6-9 combination) or parallel (4-7, 5-8 & 6-9 with the first three leads connected separate).
To change the direction of the output shaft, simply reverse any two of the three leads.
Wiki User
∙ 14y ago
Wiki User
∙ 10y agoThe voltage that should be applied to the motor is the voltage that is requested by the manufacturer and it is found on the motor's nameplate.
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Should 2 legs of 480 volt 3 phase each have 480 volts?
Across a 480 volt three phase system, 480 volts should appear across L1 and L2, L2 and L3 and L3 and L1.
Can you replace a 3 phase motor with a gas motor?
by using dc volts across pairs and with an analog meter to check the deflection of the needle to determine if they are in phase
What is the voltage rating of a motor on a 3 phase 4 wire 277V lighting circuit?
If the motor is a three phase the most likely voltage the motor operates on will be 480 volts.
How is it possible that a chicken rotisserie that uses 208v 3 phase can have a motor that uses 208v?
Two scenarios are that the motor could be a three phase motor. These three phase motors are manufactured in smaller sizes. The other scenario is that the motor is a 208/220 volt single phase motor. It will operate on 208 volts by taking two legs of the three phase supply for its operation.
Can a 380volt's 3 phase motor can be converted to 230volt's three phase motor?
Only if you want to damage it. "277" Volt 3-phase will usually mean 277 from each phase to neutral, and 480 from phase to phase. By "230 3-phase", you likely mean 120 phase-to-neutral, and 208 phase-to-phase. If you really mean 230, then you are probably NOT talking about a three phase motor.
Should 2 legs of 480 volt 3 phase each have 480 volts?
Across a 480 volt three phase system, 480 volts should appear across L1 and L2, L2 and L3 and L3 and L1.
Is 380 volts electric motor a single phase or 3 Phase?
It is probably a three phase 50 Hz motor.
What happens when you connect a 110 volt motor to 220 volts?
On a three wire supply system if you connect the two 110V wires together and they are across the phase they will short out and trip the breaker. If the two 110V wires are supplied from across the phase and connected to a motor then the motor will run. If the 110V wires are on the same phase nothing will happen.
Can you replace a 3 phase motor with a gas motor?
by using dc volts across pairs and with an analog meter to check the deflection of the needle to determine if they are in phase
What is SPL horsepower?
SPL means the motor is Split-Phase, on the motor where you found that it should have two numbers, i.e. 120/240 SPL HP. Meaning the motor operates different given 120 volts compared with 240 volts.
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 is the voltage rating of a motor on a 3 phase 4 wire 277V lighting circuit?
If the motor is a three phase the most likely voltage the motor operates on will be 480 volts.
How is it possible that a chicken rotisserie that uses 208v 3 phase can have a motor that uses 208v?
Two scenarios are that the motor could be a three phase motor. These three phase motors are manufactured in smaller sizes. The other scenario is that the motor is a 208/220 volt single phase motor. It will operate on 208 volts by taking two legs of the three phase supply for its operation.
What is max single phase hp as per nec?
The maximum single phase HP motor listed in the CEC is 10 HP. At 115 volts 100 amps and 230 volts 50 amps.
When trouble shooting a single pahse 208 volt hid ballast with your voltmeter you read 120 volts to ground on each phase wire but 0 volts across the phase wires what is wrong?
Sounds like both phase wires are connected to the same phase.
What is the maximum volts that can be used on a 208 230 volt motor?
You should not go above 240 volts for that type of motor.
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).
