If loads are unnecessarily without power due to lack of selective coordination, the owner or management of the facility should be advised of the cause.

If loads are unnecessarily without power due to lack of selective coordination, the owner or management of the facility should be advised of the cause.

• A. True
• B. False
• C. Not specified
• D. Sometimes

Answer: (A)

Protection coordination and its impact on power availability. When the protection scheme isn’t selective, a fault can cause tripping that takes out more loads than necessary, leaving parts of the facility without power even though they aren’t directly involved in the fault. The reason this happens is that upstream devices clear faults in a way that doesn’t minimize the outage to only the affected section, so non-faulted loads lose power unnecessarily. Advising the owner or facility management of the cause is appropriate because it communicates the reliability risk, potential downtime costs, and safety implications. Management can authorize corrective actions, such as conducting a protective coordination study, adjusting device settings, or upgrading protection schemes to ensure only the failing area is isolated in future faults. This keeps the business informed, supports budgeting for improvements, and aligns operations with safety and reliability goals. In contrast, keeping this information to engineers alone or delaying communication would miss a critical opportunity to address root causes and reduce unnecessary outages.

Protection coordination and its impact on power availability. When the protection scheme isn’t selective, a fault can cause tripping that takes out more loads than necessary, leaving parts of the facility without power even though they aren’t directly involved in the fault. The reason this happens is that upstream devices clear faults in a way that doesn’t minimize the outage to only the affected section, so non-faulted loads lose power unnecessarily.

Advising the owner or facility management of the cause is appropriate because it communicates the reliability risk, potential downtime costs, and safety implications. Management can authorize corrective actions, such as conducting a protective coordination study, adjusting device settings, or upgrading protection schemes to ensure only the failing area is isolated in future faults. This keeps the business informed, supports budgeting for improvements, and aligns operations with safety and reliability goals.

In contrast, keeping this information to engineers alone or delaying communication would miss a critical opportunity to address root causes and reduce unnecessary outages.