What is the reportable percentage for system-wide voltage reduction under TOP regulations?

The reportable percentage for system-wide voltage reduction under Transmission Operator (TOP) regulations is 3%. This threshold is significant because it serves as a guideline for when a Transmission Operator must report voltage reduction events. A voltage reduction of 3% or more can indicate potential stress on the system and may necessitate further investigation or communication with other entities to ensure the reliability of the electrical grid. Monitoring and reporting voltage levels is critical to maintaining a stable and reliable supply of electricity, as excessive or prolonged reductions can lead to wider system issues.

Understanding these regulations helps Transmission Operators manage and mitigate risks associated with voltage fluctuations, emphasizing the importance of adhering to this reporting standard in operational protocols.