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Hi,
The turns ratio depends on the amount of windings in a transformer that are needed to provide a secondary voltage/current that's different from the primary AC source. The ratio is derived from how many windings on the primary side as compared to the secondary side.
Hope this helps,
Cubby
This is the ratio of input voltage (VP) to output voltage (VS). It can also be expressed as the number of turns on the input or primary winding (NP) side of the transformer to the number of turns on output or secondary winding (NS) side of transformer. Also another way of expressing the transformation ratio is output current (IS) to input current(IP) .The transformation ratio a transformer is given the symbol 'a'.
i.e. a= VP/VS=NP/NS=IS/IP
If you have a 10:1 ratio, you willl get 12 volts out if you put 120 volts in (a step down transformer). That is generally about what a wall charger unit runs. Then they rectify it to DC and end up around 9 volts...but that is another story.
The same as for single phase Transformers - there is a 3-phase primary winding, and a 3-phase secondary winding; these have different number of turns, resulting in stepping up / down voltage and current.
It's the ratio of the turns (number of times the wire is wrapped) on the primary versus the secondary coils.
For example, if one side of a transformer has 200 turns, and the other side of the transformer has 100 turns, and you put 6 volts in, you'll get 3 volts out.
The ratio of a transformer is simply the number of turn in the primary divided by the number of turns in the secondary, i.e. the turns ratio. For instance, if the turns ratio from primary to secondary were 10:1, and the transformer was supplied by 120VAC, 1A, you would expect an output of 12VAC, 10A. Of course, there are other factors to consider, but this is the basic premise.
Note: There is no such thing as a multi phase transformer, so including the phrase "single phase" in the question is moot. So called "three phase transformers" are actually three independent transformers operating in tandem. They have separate windings, separate cores, and separate magnetic fields. They might be enclosed in one box, but they are still independent of each other.
The voltage ratio is equal to the turns ratio for an ideal transformer.
It depends on the voltage that is on the primary winding and the voltage coming off of the secondary winding.
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How do you determine transformer turns ratio if the supply source and load is given?
Transformer turns ratio is the ratio of voltages between two windings. For instance, a 24VAC control transformer that runs on 120VAC will have a turns ratio about 5 to 1.
A transformer with a primary of 1200 turns and a secondary of 400 turns has what ratio?
A transformer primary of 1200 turns with a secondary of 400 turns is a ratio of 3 to 1.
What is current ratio on a transformer?
It's approximately the inverse of the voltage- or turns-ratio:
What is mean by 2is to 3 turns ratio Transformer what is primary turns and secondary turns?
with an ideal electrical transformer with an input current of 2 amps and an output current of 1 amp what is the turns ratio of the secondary and primary coils
What is transformer ratios?
ratio of secondry voltage to primary voltage is called voltage transformation ratio
How do you calculate the transformer turns ratio?
For an ideal transformer, the voltage ratio is the same as its turns ratio.
What are the reasons for conducting transformer turns ratio?
The reason for conducting transormer turns ratio is to determine if the transformer is a step-up or step-down.AnswerTo determine the turns ratio if the turns ratio is unknown.
What determines the transformer ratio?
Transformer ratio, more correctly turns ratio, is the number of turns in the primary winding divided by the number of turns in the secondary winding.
Give a brief explanation what is meant by transformer turn ratiok?
K is the ratio of the number of secondary winding turns of wire around the transformer core verses the number of turns on the primary.
How do you determine transformer turns ratio if the supply source and load is given?
Transformer turns ratio is the ratio of voltages between two windings. For instance, a 24VAC control transformer that runs on 120VAC will have a turns ratio about 5 to 1.
A transformer with a primary of 1200 turns and a secondary of 400 turns has what ratio?
A transformer primary of 1200 turns with a secondary of 400 turns is a ratio of 3 to 1.
What reference to a transformer the current times the number of turns is called the?
Transformer turns ratio
What is current ratio on a transformer?
It's approximately the inverse of the voltage- or turns-ratio:
Does the formula used to calculate the turns ratio uses the phase voltages and phase current?
No, the turns ratio formula calculates the ratio of the primary to secondary winding turns on a transformer using the number of turns on each winding. Phase voltages and currents are not directly used in this calculation.
What is mean by 2is to 3 turns ratio Transformer what is primary turns and secondary turns?
with an ideal electrical transformer with an input current of 2 amps and an output current of 1 amp what is the turns ratio of the secondary and primary coils
Full form of TTR?
TTR = Transformer Turns Ratio
How much output voltage is there if input voltage from a transformer is 32v?
It depends on the turns ratio of the transformer.
