Reply #36: I don't mean to be rude but that is not posible. [View All]

[sce56]

When you sync with the grid you are magnetically locked into the grid, if you can not keep up with the speed your unit is pulled along with the grid this is called "Motoring" and it is bad for the machine as it will possibly pull the rotors bars apart. If you can not keep up magnetically with the voltage you will pull in KVAR or reactive power the magnetizing power that makes up the revolving filed that creates the electricity then you will be "Leading" If your are the base loaded unit and are set to zero speed droop then you are considered the Isochronous machine and set the bus frequency all other machines follow your lead. In those cases where you are being pulled along by the buss (nmotoring) your 32 device (Directional Power Relay)will take you out some units use the 67 Device (AC Directional Overcurrent Relay)to do this, and if you are leading normally the 55 Device (Power Factor Relay) takes you out. You can look up the ANSI device numbers here. http://www.kilowattclassroom.com/Archive/DevNos.pdf

Hope that helps as I have to unplug and get some off grid time and rest my node to get back to work at the power plant tomorrow!