Phasor Diagram

[aradhana]

Hi ,
This relates to Clarification for phasor diagram.
My query is as follows,


I want the phasor diagram properly displayed according
to the convention of Zigzag Star 0 ,Zigzag Delta 0,
Zigzag Delta 6,Zigzag Star 6,Star Delta +90,Star Delta
-90,Delta Star -90 ,Connection of Three Phase Transformer.
Plz write down the norms & conventions of drawing
Such Phasor Diagram.All notation carry usual and conventional standard meaning.

 

[RRaghunath]

Aradhana,

With Star / Delta or Delta / Star connected transformers, 90 degrees phase shift is not possible. You can only have +/- 30 or +/- 150 degrees phase shift.

I think J&P Transformer Book is a good reference in this regard.

 

[jbartos]

Suggestion: Visit

http://www.masterytech.com/tbphs.htm

etc. for more info

 

[busbar]

Applicable information in IEEE C57.12.70, indexed at standards.ieee.org/reading/ieee/std_public/description/ dtransformers/C57.12.70-1978_desc.html and C75.105, indexed at standards.ieee.org/reading/ieee/std_public/description/ dtransformers/C57.105-1978_desc.html

 

[jOmega]

Busbar,

If anyone copies and pastes the IEEE links you provided in your post, they'll obtain a 404 error.... not found.

Reason: you inadvertently included a space as follows...

..... std_public/description/ dtransformers/ .....


Eliminating the space as shown below will make it work.

..... std_public/description/dtransformers/ ....

 

[busbar]

Sorry--try

standards.ieee.org/reading/ieee/std_public/description/ dtransformers/C57.12.70-1978_desc.html


standards.ieee.org/reading/ieee/std_public/description/ dtransformers/C57.105-1978_desc.html

 

[jbartos]

Suggestion: Visit

http://www.riedel-trafobau.de/english/pdf_eng/b/b1_neu.pdf

http://www.sestech.com/software_packages/pdf/User99_A.pdf

etc. for more info