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a single phase motor has 2 parts. a stator and rotor.
the supply is fed to the stator windings.as a result of that,a magnetic field is developed on the stator windings which runs at synchronous speed. this magnetic field is induced on the rotor's windings which produces a torque on it and it starts rotating.this is how a single phase motor rotates.
that is partially right
but the ac supply has two half cycles +ve and -ve
due to which there is magnetic field developed which is alternating in nature due to which the net torque developed in the rotor becomes zero and there is no rotation
so to avoid this there is an arrangement of capacitor in the stator to make the rotating magnetic field unidirectional and with a constant magnetic field
after that the answer above is right
Wiki User
∙ 12y ago
Wiki User
∙ 13y agoDefinition Of Transformer: A Transformer is a static electric apparatus to transfer or transform electric power from one circuit to another circuit with same frequency but may be with raise or lower in the voltage with corresponding decrease or increase in current.
Working Principle Of Transformer: Transformer works on the principle of mutual induction.
If two coils are placed such that the flux produced by one coil links the other coil, then by changing current in one coil the emf is induced in the other coil.
Preliminary Construction Of Transformer: In transformer, a coil with numbers of turns is wound over one limb of the laminated core made of silicon steel. On another limb, another coil having numbers of turns is wound. Both the coils may have different numbers of turns depending upon the aim or need.
Single Phase Transformer: Core Type Single Phase Transformer consists of two limbs and Shell Type Single Phase Transformer consists of three limbs.
In the beginning, for system, three single phase Transformers were used which are now a days replaced by one three phase transformer due to its many advantages and merits over three single phase transformers.
Wiki User
∙ 11y agoA single phase transformer is basically used for Home appliances of a single user. it cannot be connected to a grid because if a fault occurs , the entire area is out of power. hence its more of a private use.
AnswerSingle-phase transformers are widely-used throughout the electricity distribution system wherever single-phase (as opposed to three-phase) supplies are needed. For example, an isolated farmhouse or other residence with no requirement for a three-phase supply would be supplied from a single-phase transformer. In the UK, a single-phase transformer would normally be a 11-kV to 230-V step-down transformer.
Wiki User
∙ 12y agoSingle-phase electric power refers to the distribution of electric power using a system in which all the voltages of the supply vary in unison. Single-phase distribution is used when loads are mostly lighting and heating, with few large electric motors.
Do you know that there is a proposed 800-mile high-voltage direct current transmission line from Oklahoma to Tennessee?
Read more about it by clicking on the link.
AnswerA single-phase transformer is a simple transformer which will either step up, or step down, a single-phase voltage. A single-phase supply is a two-conductor alternating-current system, comprising a line conductor and a neutral conductor.
As most high-voltage electrical distribution systems are three-phase systems, comprising three line conductors, a single phase distribution transformer's primary (high voltage) winding is connected between any two of the three high-voltage line conductors. As far as the secondary (low voltage) winding is concerned:
- in Europe, one end of the winding is earthed and provides the neutral terminal , while the opposite end provides the line terminal (L)
- in North America, the winding is centre tapped and grounded, providing the neutral terminal, while opposite ends of the winding provide the line terminals L1 and L2
Wiki User
∙ 15y agohttp://www.meth.it/trasformatori-monofase/descrizione.htm
Wiki User
∙ 13y agothe transformer have two windings one is primary winding another one is secondary winding.the the flux cut and emf induced
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What is the current of 1MVA transformer?
This depends on the voltage, and whether it is a three phase or single phase transformer.
How you differentiate between single phase and three phase transformer?
A single-phase transformer works with a single-phase supply, while a 3-phase transformer is used with a 3-phase supply. A single-phase transformer has 2 wires on the primary and secondary (ignoring taps) while a 3-phase tansformer has 3 or 4 wires on the primary and secondary.
How do you design a transformer with three phase 400v input and single phase 2000v output?
By design are you going to wind the transformer yourself? In your design you need a 5:1 ratio. On the output side of the transformer any two legs of a three phase transformer is considered single phase voltage. Good luck on your project.
Would you install three-phase transformer or bank of three single phase transformer in a large power station and justify by comparing the two schemes?
A three-phase transformer bank is often used in power stations because it is easier to construct and transport very large single-phase transformers, compared with constructing and transforming an equivalent-capacity three-phase transformer.
Can 3 single phase transformers can replace 1 three phase transformer?
Yes, you can use three single phase transformers on three phase applications and interconnect them to serve as a single transformer or you could use one single phase transformer fed from two of the three lines in a step down application.
What is the current of 1MVA transformer?
This depends on the voltage, and whether it is a three phase or single phase transformer.
How do you convert a 3-phase system to a single phase?
By having a transformer with 3 phase input and single phase out put
Why the need of harmonics in single phase transformer?
Harmonics are really not needed in single phase transformers.
What is this system called with three single phase transformer?
Your question is rather vague. If you are asking what do you call a group of single-phase transformers, connected to supply three phase, then the answer is a 'three-phase transformer bank'.
How you differentiate between single phase and three phase transformer?
A single-phase transformer works with a single-phase supply, while a 3-phase transformer is used with a 3-phase supply. A single-phase transformer has 2 wires on the primary and secondary (ignoring taps) while a 3-phase tansformer has 3 or 4 wires on the primary and secondary.
How do you design a transformer with three phase 400v input and single phase 2000v output?
By design are you going to wind the transformer yourself? In your design you need a 5:1 ratio. On the output side of the transformer any two legs of a three phase transformer is considered single phase voltage. Good luck on your project.
What is the purpose of conducting sc and oc test of single phase transformer?
to determine the transformer characteristics...
Would you install three-phase transformer or bank of three single phase transformer in a large power station and justify by comparing the two schemes?
A three-phase transformer bank is often used in power stations because it is easier to construct and transport very large single-phase transformers, compared with constructing and transforming an equivalent-capacity three-phase transformer.
How do you test a single phase transformer?
with an meg ohm meter
Can 3 single phase transformers can replace 1 three phase transformer?
Yes, you can use three single phase transformers on three phase applications and interconnect them to serve as a single transformer or you could use one single phase transformer fed from two of the three lines in a step down application.
How many 16 Amps per phase welding outlet can you install to a 30 KvA rating transformer?
..the questions does not say wether the 30kVA transformer is 3 phase transformer or single phase transformer..but it is implying that a single phase welding load at 16A per phase is to be connect to it, it is assumed then that the transformer is 3 phase transformer..we assume load is rated 240V.. ..though not much details is given about the transformer voltage specs. but if is rated 3 phase 415/240V, the approx full load current per phase is given by 30KVAx1.3912=41.736A.. ..but if the transformer was rated single phase 240V say, the approx full load current FLC=30000/240V gives 125ampers.. ..if you further devide the FLC by the intended load current.. ..Recommended no of welders per for a 3 phase 415V transformer and assuming single welding sets =41.736/16=2.6..so you can connect max two welding sets to this transformer per phase,..max 6 weld sets can connect at an approx load factor of 76%.. ..for the single phase transformer, FLC/16=125/16, gives 7.8 but is also recommended not to connect more than 6 welding sets to such transformer for the same reasons..
What will happen if apply two phase supply to a three phase transformer?
A three phase transformer is simply three transformers so, supplying one phase to a set of three transformers will result in only one phase output. Any loads connected to that transformer that are expecting three phase power will malfunction, and could fail.AnswerA three-phase transformer is NOT 'three separate single-phase transformers', as suggested in the original answer. It is a single transformer with three primary and secondary phase-windings wound around a common three-limb ('core') or five-limb ('shell') core. If a single-phase supply was applied to one of the three primary windings, then single phase voltages would appear across each of the three secondary windings and the remaining two primary windings. These voltages would not be out of phase with each other.
