What does ZPB mean in power systems?

[jaus tail]

Hi,
So my power system book has a diagram for zero sequence impedance. I cannot find the full form of ZPB. I googled it up but couldn't come across anything.

 

[Tom.G]

I'm guessing here, but how about "Zero Potential Branch", i.e the branch that the other branches are referred to for a voltage measurement; the "local ground" for measurements.

Paging @jim hardy. Jim is the local power guy here and can likely come up with a knowledgeable answer.

 

[Baarken]

From https://madeeasy.in/document/postgate/bookPdf/13PowerSystems.pdf page 10, section 5.3

ZPB = zero power bus (reference bus)​

 

[anorlunda]

We have so many people on PF knowledgeable about so many things.

 

[jim hardy]

From https://madeeasy.in/document/postgate/bookPdf/13PowerSystems.pdf page 10, section 5.3

ZPB = zero power bus (reference bus)

We have so many people on PF knowledgeable about so many things.

Indeed. I never had a course in power system analysis so what little i know came about mostly by osmosis. The abbreviation was not familiar to me.

Thanks @Baarken . That makes sense . Balanced Zero sequence returns through neutral so it's intuitive to declare that as reference. "Today i learned.."

Thanks all.

old jim

 

[mgknp]

from the reference of https://madchemclasses.online/
ZPB = zero power bus (reference bus)