Load shedding High speed

However, it is also possible to introdnce a high-speed load shedding scheme into the power system when Fg is fonnd to be above 105%. Snch a scheme will compute in an anticipatory manner how much consumption should be deleted in the event of a loss of one generator. The designer will be able to predetermine enough low priority consumers to achieve the necessary corrective action. See Chapter 16. 

The PMS will receive this shut-down signal from one of the 86 lock-out relays, and will respond in exactly the same way as with the high-speed load shedding, see sub-section 16.3.1. 

The low-speed load shedding will be more active when the ambient temperature is high i.e. near to the site high limit. 

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