Executing load shedding can be accomplished through which means?
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Answer: D. Any of the above
Explanation
Physically switching off distribution feeders drops connected load instantly. Reducing system frequency forces motor loads to consume less active power. Lowering system voltage decreases power drawn by voltage-sensitive electrical loads. Load shedding is an emergency control action to prevent total grid collapse. Voltage reduction acts as a temporary measure to shed resistive power demand. Frequency reduction slows down rotational equipment reducing aggregate grid load.
Operators execute emergency load shedding when spinning reserves are exhausted. Automated schemes use under-frequency and under-voltage relays to shed loads fast. These methods help stabilize grid parameters during severe generation shortages. Option A covers physical switching but ignores frequency and voltage reduction methods. Option B covers frequency reduction while missing physical switching and voltage drops. Option C covers voltage reduction but omits physical switching and frequency control.
- Subject
- Engineering
- Category
- Electrical Engineering
- Topic
- —
- Difficulty
- medium
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