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How to calculate kVA?


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Hello toprange

KWhr is measured by the use of a rotating disk KWHr meter (or an electronic equivilent). This responds to KW drawn from the supply and accumulates this.

KVA is measured by a peak reading ameter that has a slow response. This meter is generally refered to as a MDI or a Maximum Demand Indicator.

The KVA is the maximum current times the phase voltage times root three.


Best regards,

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