CONTROL APPARATUS OF CIRCUIT BREAKER

摘要

PROBLEM TO BE SOLVED: To provide a control apparatus of a circuit breaker so configured as to reduce the frequency of unnecessary power failures.SOLUTION: The control apparatus of a circuit breaker includes: an estimation device for estimating a temperature of a power line on the basis of an actual current value supplied to the power line provided on a downstream side of the circuit breaker and meteorological information at a position where the power line is provided; and a power interruption device for interrupting the circuit breaker when the actual current value exceeds a predetermined value and when the estimated temperature of the power line estimated by the estimation device exceeds a predetermined temperature.SELECTED DRAWING: Figure 3