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they are winding wound in such a way that they deliver three times the power
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∙ 9y ago
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How should the resistance reading compare in each winding of a three phase motor?
The three windings are made the same to maintain a balance in the motor.
How you determine the starting and running winding of a capacitor start single phase motor?
I think the resistance value of starting winding is less than the running winding of the single phase motor
What types names of windings does the transformer have?
The primary winding is connected to the supply. The secondary winding is connected to the load. A tertiary winding (if used) is a third winding, which may be connected in various ways.If the transformer is a three-phase transformer, then there are three common configurations: wye (also known as 'star'), delta (also known as 'mesh'), and zig-zag.
What are the possible causes if load is not same on all the three phases?
You may have single phase loads on one winding, turn to turn faults within one winding, the three phase voltage applied to the transformer may not be balanced, and so on. If you have only three phase loads attached, and the load impedance is not balanced, you may have a partially failed piece of equipment. Part of one of the motor windings may be shorted out, for example.
Do all single phase motors have a start and run winding?
No, commutator motors as used in vaccum cleaners for example do not use a starting winding. Single-phase induction motors need a starting winding without which they will start in either direction if given an initial twist.
What is a y configuration on a 3 phase circuit?
On a wye connection all three ends of the phase winding coils are connected together and grounded. The other end of the three phase winding are connected to the supply voltage.
How does a star winding shifts to a delta winding in a three phase motor?
u can change in the terminal box..
How should the resistance reading compare in each winding of a three phase motor?
The three windings are made the same to maintain a balance in the motor.
Why the voltage applied to each winding in a STAR configuration of three phase is reduced?
In a star configuration, often called "Y", the voltage across one winding is from a phase to ground. Phase to phase you have voltage across 2 windings. And at the risk of confusing you, the phase to phase voltage is not double the other because the windings are only 120 degrees out of phase and not 180 degrees. To calculate this you take the voltage of one winding, 120v for example, and multiply by the square root of 3, or about 1.732, and get 208v. Or you take 277v and get 480v.
What is concentrated winding?
a winding is called concentrated winding when the number of slots per pole per phase is fractional
How you determine the starting and running winding of a capacitor start single phase motor?
I think the resistance value of starting winding is less than the running winding of the single phase motor
How do you determine a 3 phase motor and each winding?
To see if the motor is three phase or single phase look at the motor's nameplate. There it will tell you what the voltage needs to be and what system phase the motor needs to be connected to operate properly.
What types names of windings does the transformer have?
The primary winding is connected to the supply. The secondary winding is connected to the load. A tertiary winding (if used) is a third winding, which may be connected in various ways.If the transformer is a three-phase transformer, then there are three common configurations: wye (also known as 'star'), delta (also known as 'mesh'), and zig-zag.
How is three phase12 slots 4-pole winding designed?
Total slots per phase =12/3=4 slots to be occupied. Slots per pole per phase = 12/(3*4)=1 hence for A phase, the slots to be occupied are 1,4,7,10;for B phase, the slots to be occupied are 5,8,11,2;for C phase, the slots to be occupied are 9,12,3,6 and winding to we wave type.
Do all single phase motors have a start and run winding?
No, commutator motors as used in vaccum cleaners for example do not use a starting winding. Single-phase induction motors need a starting winding without which they will start in either direction if given an initial twist.
What are the possible causes if load is not same on all the three phases?
You may have single phase loads on one winding, turn to turn faults within one winding, the three phase voltage applied to the transformer may not be balanced, and so on. If you have only three phase loads attached, and the load impedance is not balanced, you may have a partially failed piece of equipment. Part of one of the motor windings may be shorted out, for example.
How do you wire a three phase motor with two speed to a three phase power supply lead numbers not specified?
There are many types of winding on a two speed three phase motor. The number of wires from the motor should have been stated. This is a guess that the motor is a six lead. The diagram is for a six lead out two speed, one winding, single voltage constant horsepower motor.See sources and related link below
