Ask Experts Questions for FREE Help !
Ask
    hearteye99's Avatar
    hearteye99 Posts: 2, Reputation: 1
    New Member
    		  
    #1

    Mar 6, 2009, 01:07 PM
    Transformer
    We have main transmission line 11 KVA and our 25 kva Tranformer convert into 220 volt

    If transmission line is 11 kva then why we use 25 kva transformer ?
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
    Uber Member
    		  
    #2

    Mar 6, 2009, 09:45 PM

    Again, suspicious of a homework problem.

    Besides, units are kVA not any other combination.

    Volt is a proper name. Ampere is a proper name and k is x1000 and K = Kelvin.

    Any guesses?
    Perito's Avatar
    Perito Posts: 3,139, Reputation: 150
    Ultra Member
    		  
    #3

    Mar 9, 2009, 05:40 AM

    Overrating transformers is common -- to keep them from burning out prematurely in case of surges.

    K is not Kelvin in this case. KVA is thousands of Volt-Amperes. It's a common rating found on electrical equipment like transformers.

    A Volt-Ampere would be a Watt on a purely resistive system so KVA would be Kilowatts on a purely resistive system.
Not your question? Ask your question View similar questions
 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

24 V Transformer Bad, No AC [ 2 Answers ]

One hot Summer day, My Central Air went out, but the fan continued to run even when the thermostat was turned off. The smell of burnt electrical wiring throughout the house. I removed the front cover of the air handler, unplugged the 120 VAC power cord and When I checked the circuit it was...

Where is the transformer? [ 1 Answers ]

Hi, Thanks for the reply to my previous message. Can you tell me where I can locate the transformer to hook up the common terminal?

Transformer [ 3 Answers ]

What happens inside a transformer that increases or decreases the voltage?When a transformer steps up voltages,from where it creates thes voltages?

Possible bad transformer? [ 9 Answers ]

I wanted to get a second opinion if the transformer on my ac is dead. I've been all over the net looking up info, and I think I got it figured out. Here's an overview of what was wrong and what I've done: Two units, one upstairs one down. Downstairs stopped working. No display on digital...

Transformer [ 1 Answers ]

I have a Goodman Heat Pump. The transformer in the air handler burnt out and I replaced it with one protected with a reset button. Now, when I use unit, I can only use in emergency heat. When I use in heat or cool mode it will trip the transformer in 30 seconds. Is this a low voltage problem? Air...

View more questions Search