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You are not really connecting two phases to the primary of the transformer; you are connecting one phase. In delta configuration, each phase is actually the connection of two legs, AB, BC, and CA. Even though you are connecting two legs to the transformer, there is only one phase involved. In star configuration, however, each phase is the connection of one leg to neutral, AN, BN, and CN. In star, you would only use one of AN, BN, or CN to connect to the transformer's primary winding. Star configuration is preferred, and is actually used in the transmission/distribution system, because in delta, loss of one leg takes out two phases. Star configuration, however, would not be preferred if your local distribution was based on a non-centered neutral, such as a quadraplex connection providing split phase simultaneously with three phase. (120/240-240/3) The neutral in that case is not at the center of the star triangle - it would be at the center of one of the phase pairs.

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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 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.


What type of transformer has only a single winding?

the auto transformer is the one winding transformer. it ismaily used in practical purpose.


What is the current of 1MVA transformer?

This depends on the voltage, and whether it is a three phase or single phase transformer.


A single phase transformer has an input voltage of 240v and output voltage of 50v and a rated input power of 4.20kW if their is 1344 windings on the input side how many on the output?

There is (240 / 1344) = 179 milli volts per turn. The output voltage is 50 volts, so 50 / .179 = 280 turns on the secondary.

Related Questions

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 kva rating of single phase transformer?

This is the rated output of the transformer, obtained by multiplying the rated secondary voltage by the rated secondary current. And it's 'kV.A', not 'kva'.


What is a single phase variac?

It is a variable autotransformer, a transformer with a sliding contact on the winding connected to a control knob, that allows the output voltage to be varied.


If two output tubes are run in parallel and the primary impedance of the audio transformer is cut in half will a single-ended amp yield twice the output?

Yes it can if it's connected in a push pull reconfiguration


What is a full load current in single phase transformer?

It is the rated maximum current that can be taken from the transformer. This is equal to the VA rating divided by the output voltage. So a 6 kVA 240 v transformer would have a maximum current rating of 6000/240 or 25 amps.


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.


What will be the output if you apply a single phase on all three wires of supply side of a transformer?

Your question is confusing because you give absolutely no information on the transformer, such as its turns ratio, or any information about the supply voltage. Presumably, though, you are describing a three-phase transformer, as you refer to three wires? Again this is confusing, because you do not describe how you would supply single phase to 'all three wires'!


Function of switched capacitor for three phase power generation from single phase?

usually they say its possible 2 convert a 2phase supply to 3 phase.if its so then how?


Materials used in constructing a full wave rectifier?

Full wave rectifiers consist of two (for a center-tapped transformer) or four (for a single-ended transformer) diodes connected such that as the polarity of the AC input changes, the diodes steer the current flow so the output polarity does not change. The output of a FW rectifier is pulsating DC, which is normally then filtered or smoothed with a capacitor.


What type of transformer has only a single winding?

the auto transformer is the one winding transformer. it ismaily used in practical purpose.


What is the current of 1MVA transformer?

This depends on the voltage, and whether it is a three phase or single phase transformer.


A single phase transformer has an input voltage of 240v and output voltage of 50v and a rated input power of 4.20kW if their is 1344 windings on the input side how many on the output?

There is (240 / 1344) = 179 milli volts per turn. The output voltage is 50 volts, so 50 / .179 = 280 turns on the secondary.