When load shedding is implemented, who typically executes it automatically?

When load shedding is implemented, who typically executes it automatically?

• A. Manually by operators.
• B. Automatically by EMS in stages.
• C. Only during fault conditions.
• D. At a pre-set time of day.

Answer: (B)

Load shedding in practice is an automatic, staged response driven by the Energy Management System. The EMS constantly monitors important grid indicators like frequency, voltage, and line loading. When these indicators show stress beyond predefined limits, the EMS kicks off a sequence of shedding steps, cutting non‑essential loads in a controlled order and in stages. This automated approach is faster and more coordinated than manual actions, helping to steady the system and prevent a larger outage while generation and transmission adjust. The staging also allows operators to observe the impact and make fine-tuned decisions if needed. It’s a condition‑based action, not tied to a fixed time of day or limited only to fault conditions.

Load shedding in practice is an automatic, staged response driven by the Energy Management System. The EMS constantly monitors important grid indicators like frequency, voltage, and line loading. When these indicators show stress beyond predefined limits, the EMS kicks off a sequence of shedding steps, cutting non‑essential loads in a controlled order and in stages. This automated approach is faster and more coordinated than manual actions, helping to steady the system and prevent a larger outage while generation and transmission adjust. The staging also allows operators to observe the impact and make fine-tuned decisions if needed. It’s a condition‑based action, not tied to a fixed time of day or limited only to fault conditions.