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What are the advantages of power transformers over voltage transformers?

Power transformers can be used for power transformation. Voltage transformers are not suitable for high power applications.


What are the functions of current transformers and the difference between current transformers and voltage transformers?

To sense the current flow across the current transformers and to monitor the current ratings. In current transformers no voltage variations occurs. but in voltage transformers it is mainly used to increase or decrease the voltage value.


Who invented transformers?

Henry Orenstein invented transformers.


What are the two types of transformers?

The two general categories of transformer, based on their construction, are (a) mutual transformers and (b) autotransformers.Mutual transformers have two coils, or 'windings', termed the primary (input side) and the secondary (output side), which are electrically isolated from each other, being linked with a magnetic field.Autotransformers have a single, shared, winding and so, do not provide isolation between the primary and secondary sides.Mutual transformers can be further classified, according to their function: e.g. power transformers, distribution transformers, isolation transformers, instrument transformers, matching transformers, etc.


Current transformers vs potential transformers?

Current tranformers transform amps(current) and usually have ratios of 100/1 or 2400/1. They come in different classes and accuracy factors depending on the application which can be for instrumentation or protection. Voltage transformers transform voltage. Either up, like at power stations for transmission to distribution, or down, like your cellphone charger from your house supply to the low voltage your cellphone needs. Ratios are for example 6600/400 Volts or 110/12 Volts. they also come in different classes and ratings as needed.