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A comment on Continuing frequency deviation in the Continental European Power System. Parent comment

Re:Continuing frequency deviation in the Continental Europea... by blattimwind on Wednesday March 07, 2018 @08:58AM (#16536322)
The rotor in a synchronous machine is coupled magnetically to the grid (basically a spring-mass system where the spring is a rotary field); there is virtually no reaction time in this mechanism.

(It should be noted that other motors, including asynchronous machines, contribute as well)

AIUI the HPR has reaction times on the order of a few seconds.

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Re:Continuing frequency deviation in the Continental Europea... by toomuchtodo on Wednesday March 07, 2018 @09:23AM (#16536505)
HPR reaction time is milliseconds for frequency response. It reacts faster than the grid operator’s data logger resolution.
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