Why are transformers rated in volt-amperes (VA) rather than in power (watts)?
What will be an ideal response?
Transformers are rated in volt-amperes (VA) rather than in power (watts). This is because of the loads that can be placed on the secondary winding. If the load is a pure capacitive load, the reactance could cause the current to be excessive. The power rating has little meaning where a volt-ampere rating can identify the maximum current the transformer can handle.
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