Phase Shift Monitoring

[ccdubs]

Hi,

Could someone please tell me what phase shift monitoring is, how it works and what it protects interms of grid generation?

From what I have read it seems to me that it provides a function similar to over/under frequency protection.

Thanks

 

[busbar]

You may be looking for something like

http://www.arbiter.com

In their 1133 info they refer to “synchrophasors.” There is some online documentation. Lower left side of the 1133 page. They are supposed to have a field-portable version eventually.

I think BC Hydro was doing some work on power-system state estimation—I’m not sure of that’s related to what you need—search on that phrase. Also in IEEE you might search for C Henville.

ERCOT did some studies ~8 yr ago. Their paper described a visualization of "twisting" in their transmission system. ISTR they used GOES or GPS synchronization, but the individual nodes were a bit pricey. Don't know if they have anything online.