What is RGMO and FGMO?
- FG stands for “free governor”,
- RG for “restricted governor” and
- MO for “mode of operation”.
- FGMO is the basic mode: if frequency tends to raise, increase the turbine load and vice versa.
- However, this may cause load and frequency imbalances across the grid, so that large machines (> 200 MW or so) operate with RGMO.
FGMO full form: Free Governor Mode Operation
The mode of governor operation which compensates the change in frequency by changing the generation is called Free Governor Mode Operation(FGNO). In a word, FGMO is the variation of generation according to the frequency.