On Oct 28, 1:35*am, Andy Dingley wrote:
On 27 Oct, 11:54, "Man at B&Q" wrote:

Lots of teasing shots of grid frequency display but no detail of what
the varying frequency means or how and why it is controlled.

"Droop Speed Control" is your search term

I know how it works. Just thought it would have made the prog more
interesting to others.

MBQ