Method for testing capacitive current switching of a circuit breaker
AssigneeSchneider Electric Industries SAS
InventorsDiego Alberto, Jean-Pierre Gauthier, Anthony Papillon, Xavier Godechot
Life of this patent
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Abstract
A method for testing capacitive current switching of a circuit breaker, including: realizing a capacitive current switching by the circuit breaker, measuring voltage at the terminals of the circuit breaker after the capacitive current switching, calculating the gradient of the measured voltage, determining whether there is at least one point of gradient whose amplitude exhibits an absolute value greater than a first predetermined threshold, and when such a point is determined, identifying the instant of appearance of the determined point and of the amplitude of variation of the voltage at that instant, as voltage drop.
Claims10
A method for testing capacitive current switching of a circuit breaker, comprising:
- realizing a capacitive current switching by the circuit breaker,
- measuring voltage at the terminals of the circuit breaker after the capacitive current switching,
- calculating the gradient of the measured voltage,
- determining whether there is at least one point of gradient whose amplitude exhibits an absolute value greater than a first predetermined threshold, and when such a point is determined,
- identifying the instant of appearance of the determined point and of the amplitude of variation of the voltage at that instant, as voltage drop.
A station for testing capacitive current switching of a circuit breaker, comprising:
- electrical modules suitable for carrying out a capacitive current switching by the circuit breaker, and
- a data acquisition and processing chain suitable for measuring the voltage at the terminals of the circuit breaker after the capacitive current switching, to calculate the gradient of the measured voltage, to determine whether there is at least one point of gradient whose amplitude exhibits an absolute value greater than a first predetermined threshold, and when such a point is determined, and to identify the instant of appearance of the determined point and the amplitude of variation of the voltage at that instant, as voltage drop.
Dependencies are inferred from the claim text.