Method and device for determining closing time of circuit breaker, and computer-readable medium

A device for determining a closing time of a circuit breaker, the circuit breaker being configured to output a three-phase voltage signal, the device comprising:

• a sampling module configured to sample a voltage signal of a target phase in the three-phase voltage signal of the circuit breaker;
• a first time period determination module configured to determine a first time period according to a voltage value of the voltage signal sampled, a voltage signal in the first time period including a voltage jump point of a voltage value;
• a jump point search module configured to find a voltage jump point of a voltage value in the first time period according to a change in a voltage value of the voltage signal in the first time period;
• and
• a first closing time determination module configured to determine a closing time of a target phase of the circuit breaker according to the sampling time found, of the voltage jump point.

A device for determining the closing time of a circuit breaker, comprising:

• at least one memory configured to store a machine-readable program;
• and
• at least one processor configured to invoke the machine-readable program for implementing at least
• sampling a voltage signal of a target phase in the three-phase voltage signal of a circuit breaker;
• determining a first time period according to a voltage value of the voltage signal sampled, a voltage signal in the first time period comprising a voltage jump point of the voltage value;
• finding a voltage jump point of the voltage value in the first time period according to a change in the voltage value of the voltage signal in the first time period;
• and
• determining a closing time of a target phase of the circuit breaker according to a sampling time found, of the voltage jump point.