Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.

What are QRF and PRF in the generator table?

April 26, 2017generator qrf Table

0

Posted

What are QRF and PRF in the generator table?

1 Answer

0

Posted

For multiple generators regulating the same bus, this is the fraction of the total MVAR (QRF) or the total MW (PRF) to be served from the individual generator. For example, if generator 1 is 80 MVAR and generator 2 is 20 MVAR: The QRF factor is 80÷(20+80) = 0.8 for generator 1 The QRF factor is 20÷(20+80) = 0.2 for generator 2 If you enter a value of 1 for QRF, the PSLF software automatically adds the individual factors to obtain the total. If three units have a QRF of 1, each generator contributes 1/3 or 0.333 to the total MVAR. The PRF is used only for area interchange MW adjustment.