What is Under Frequency Load Shedding?

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  • Опубліковано 8 січ 2025

КОМЕНТАРІ • 4

  • @jameslo9004
    @jameslo9004 5 років тому +4

    As the primary generator and transmitter of electricity on the island of Newfoundland, we are constantly monitoring and adjusting generation to match customer demand. The frequency is the speed at which an electric current flow. The standard frequency is 60 hertz. Our goal is to keep the frequency as close to 60 hertz as possible. Maintain frequency at 60hertz is delicate balance between demand and generation. When there is an imbalance between generation and demand, the frequency will move away from 60 hertz. If we suddenly lose a large amount of generation from a trip of generation unit, the frequency will drop. If the frequency drops too low, it can result in a system overload. Meaning more demand than supply, and potentially cause an extensive outage. Under frequency load shedding prevents this from happening. If the frequency drop below a certain level, predetermined blocks of customers are automatically dropped to protect the system from going into a widespread blackout. In other word, we turn off the power in certain areas if we suddenly lose a large chunk of generation by shedding some of the demand in a controlled manner we restore balance and stabilise the power system. Other generation can then ramp up bringing the frequency back up to 60 hertz ad we can start to restore power to those customers. On average, under frequency event occur 5-8 times in per year on the island. Part of the province and power outages are usually less than 30 mins. Different blocks of customers are affected each time.

  • @NBspark
    @NBspark 4 роки тому +1

    nice