Which category of switching includes actions such as isolating trouble and restoring service?

Which category of switching includes actions such as isolating trouble and restoring service?

• A. Routine
• B. Automatic
• C. Emergency
• D. Protective

Answer: (C)

Emergency switching covers actions taken in response to faults or abnormal conditions to quickly isolate the trouble and then restore service. The goal is to protect people and equipment while getting the grid energized again for as many customers as possible. In practice, this means using switching devices to isolate the faulted section, verify it's de-energized, and then reconfigure the network so power can be restored to unaffected areas. This sequence—isolate the problem, then restore service—defines emergency switching. Routine switching is planned and non-emergency, automatic switching happens via protection devices without human intervention, and protective switching focuses on operation of protection to clear faults, not the overall restoration process.

Emergency switching covers actions taken in response to faults or abnormal conditions to quickly isolate the trouble and then restore service. The goal is to protect people and equipment while getting the grid energized again for as many customers as possible. In practice, this means using switching devices to isolate the faulted section, verify it's de-energized, and then reconfigure the network so power can be restored to unaffected areas. This sequence—isolate the problem, then restore service—defines emergency switching. Routine switching is planned and non-emergency, automatic switching happens via protection devices without human intervention, and protective switching focuses on operation of protection to clear faults, not the overall restoration process.