What is the update frequency required in case of an RTU failure?

The requirement for update frequency in case of a Remote Terminal Unit (RTU) failure is typically set at every hour. This standard is established to ensure that despite the failure of the RTU, reliable and current data regarding the system's operational status can still be maintained without significant delay.

The rationale behind an hourly update frequency is to strike a balance between timely data acquisition and the practicalities of system management. More frequent updates, such as every 15 or 30 minutes, may not be feasible or necessary given the nature of the failure—a balance must be struck to allow for effective restoration processes. Additionally, a longer interval like every 2 hours would not provide sufficient oversight or responsiveness to potential issues in the transmission system, which are critical for maintaining stability and performance.

By having an update frequency of every hour, operators can ensure a regular check-in on system status, which helps with decision-making and troubleshooting, while still allowing enough time to address the problem without overloading resources.