Synchronous Machine - Zero-Sequence Impedance, Parallel Circuit Method

[akyip]

Hey guys

While working on Cram for Exam questions, one of the questions is about finding a synchronous machine's zero-sequence impedance, using given readings from a voltmeter and ammeter in a "parallel circuit method".

I tried to look up a bit more on the parallel circuit method, but couldn't find anything. Is there any sort of text, literature, etc. that elaborates more on this parallel circuit method? And any other methods of determining sequence impedances for synchronous machines that you guys think would be important for the PE exam?

Thanks!

 

[Cram For The PE]

Hey guys

While working on Cram for Exam questions, one of the questions is about finding a synchronous machine's zero-sequence impedance, using given readings from a voltmeter and ammeter in a "parallel circuit method".

I tried to look up a bit more on the parallel circuit method, but couldn't find anything. Is there any sort of text, literature, etc. that elaborates more on this parallel circuit method? And any other methods of determining sequence impedances for synchronous machines that you guys think would be important for the PE exam?

Thanks!

What is the exam number and question number you are referencing?

 

[Dude99]

This may help

you know V and I

https://www.delorenzoglobal.com/documenti/prodotti/140417_Prova_sincrona.pdf

 

[akyip]

What is the exam number and question number you are referencing?

Cram for Exam Vol 2, question 47.

 

[Cram For The PE]

Cram for Exam Vol 2, question 47.

See IEEE standard 115 "IEEE Guide for Test Procedures for Synchronous Machines" year 2009 section 10.6.1.2.

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