Why transformer rating in kva not kw?

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Question ajoutée par faris kk , Electrical engineer , Newton trading & contracting WLL
Date de publication: 2013/11/27

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par Aftab Ahmed , Senior Engineer- Technical Service and Coordination Department , Pakistan Oilfields Ltd (POL)

Any Electrical Source shall mostly be rated in KVA. Transformer is also a Type of Electrical Power Source.

Further, any Electrical Load shall mostly be rated in HP or KW..

If Power Factor in the system remains near unity, Source KVA can be taken as KW also.

As Power Factors lowers in an Electrical System, Reduced KW of Source can be calculated as Source KVA X Power Factor.

Hence, an Electrical Technician / Engineer always keeps an eye on Power Factor of Its Electrical System.

Why transformers rating is only kva ?
Top Answer: KVA = Kilo Volt Ampere it is the total power( complex power ) ( apparent power ) and the complex power co ... Voir Plus

Réponses (1)
Why transformer rating is measured in KVA or MVA only, justify it?
Top Answer: Operation of a transformer is highly dependend on the temperature at which it operates and the temperatur ... Voir Plus

Réponses (2)
Why do we let a transformer in KVA not in watt?
Top Answer: Transformer has losses like Hysteresis loss, core losses etc which are Reactive power component. The Acti ... Voir Plus

Réponses (1)
Why Transformers Rated in MVA and not in MW?
Top Answer: HELLO SIR. YOURS QUESTION ANSWER IS . A TRANSFORMER HAVE LOAD OF VOLTS AND AMPERES.WHEN THE LOAD IS UP AN ... Voir Plus

Réponses (1)

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