3 Phase Inverters output waveform

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#1 21676282 03 Aug 2016 03:38

Electronic Engineer Electronic Engineer

Anonymous

Post #1
21676282 03 Aug 2016 03:38

Dear

Please answer this question, I found it as an MCQ:

What is the output waveform of Three Phase inverter connected in Star connection and conduction angle is 120 degrees?

Different options were square wave, quasi square wave, six step square wave etc?

Thanks
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#2 21676283 03 Aug 2016 20:11

Kevin Angelo Ma Kevin Angelo Ma

Anonymous

Post #2
21676283 03 Aug 2016 20:11

hi,

The output would most likely be just the same with a three single phase with 120 degrees phase difference between them. It could be any of the options depending on the input you used.
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#3 21676284 04 Aug 2016 01:37

Dean Franks Dean Franks

Anonymous

Post #3
21676284 04 Aug 2016 01:37

The question is a little ambiguous, but if the conduction angle is 120 degrees it is likely a square wave output. The conduction angle for sinusoidal three phase is 180 degrees which is approximately what quasi-square or six-step square would use.
#4 21676285 04 Aug 2016 19:27

Kevin Angelo Ma Kevin Angelo Ma

Anonymous

Post #4
21676285 04 Aug 2016 19:27

I think you are right Dean. Thanks for the inputs.
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