A sectionalizer can interrupt the flow of electricity through an energized distribution line.

A sectionalizer can interrupt the flow of electricity through an energized distribution line.

• A. False
• B. True
• C. It depends on the circuit
• D. Only during automated restoration

Answer: (A)

Sectionalizers are devices that work with reclosers to isolate a faulted section, not protective devices that interrupt current on their own. Under normal conditions they stay closed and carry the load, but after a preset number of consecutive faults, they open their sectionalizing switch to isolate the affected section. The actual interruption of current on an energized line is performed by the upstream protective equipment (the recloser), not by the sectionalizer itself. For that reason, the statement is false.

Sectionalizers are devices that work with reclosers to isolate a faulted section, not protective devices that interrupt current on their own. Under normal conditions they stay closed and carry the load, but after a preset number of consecutive faults, they open their sectionalizing switch to isolate the affected section. The actual interruption of current on an energized line is performed by the upstream protective equipment (the recloser), not by the sectionalizer itself. For that reason, the statement is false.