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Anonymous Poster #1

Transformer Rated in kVA and Not kW

09/10/2013 8:00 AM

Hi

why is transformer rated in kVA and not it kW, i know it doesn't have pf (cos factor), the difference between kVA & kW is pf, but other than that, anything to add, knowledge shared.

thanks in advance.
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PWSlack
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#1

Re: Transformer rated in kVA and not kW

09/10/2013 8:07 AM

Duplicate thread.

http://cr4.globalspec.com/thread/76120#comment828771

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SavvyExacta
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#2
In reply to #1

Re: Transformer rated in kVA and not kW

09/10/2013 8:15 AM

The threads were started by two different users, but this user may find some of those comments useful. Thanks!
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Shyanki Kumar
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Join Date: Sep 2013
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#3

Re: Transformer Rated in kVA and Not kW

09/11/2013 2:43 AM

Rating of any equipment is decided by heating/losses of that equipment.In a transformer

heating is due to ohmic losses which are directly proportional to current,eddy current and hysteresis losses are directly proportional to voltage.so we just use KVA to represent transformer rating.
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Users who posted comments:

PWSlack (1); SavvyExacta (1); Shyanki Kumar (1)

Previous in Forum: Transformer & Electric Motor Working Principle same?   Next in Forum: Running a 60 Hz Heating Element at 50 Hz

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