System for collecting displacements of breaker contact terminal and method for collecting displacements of breaker contact terminal

Abstract

The invention discloses a system for collecting displacements of a breaker contact terminal and a method for collecting the displacements of the breaker contact terminal. The system mainly comprises a displacement sensor, a trigger circuit, an SPI, a DSP system and an ARM system, wherein an output end of the displacement sensor is connected to the DSP system, the DSP system is connected to the ARM system by the SPI, and an output contact point of the trigger circuit is connected to the DSP system. The system also comprises a touch display screen, wherein the touch display screen is connected to the ARM system, the displacement sensor is used to measure the displacement of the breaker contact terminal, the trigger circuit is used to trigger external interruption of the DSP so as to realize sampling, the DSP system is used to carry out AD sampling and data processing and sends data to the ARM system by the SPI, and the ARM system is used to receive the data sent by the DSP, store the data and display the data on the touch display screen. The system for collecting the displacements of the breaker contact terminal and the method for collecting the displacements of the breaker contact terminal disclosed by the invention can detect and store the contact terminal displacement of each time of breaker switching or closing. In addition, the device is based on an embedded system, requires small space and realizes friendly human-computer interactions.

Description

technical field [0001] The invention relates to the field of circuit breaker monitoring, in particular to a circuit breaker contact displacement acquisition system and a circuit breaker contact displacement acquisition method. Background technique [0002] In the power system, according to the operation and scheduling requirements of the power grid, circuit breakers are used to reliably switch on or off lines and electrical equipment. The circuit breaker disconnects and closes the circuit through the opening and closing of the contacts. Since the displacement curve of the moving contact can partially reflect the mechanical characteristics of the circuit breaker such as opening and closing speed and overtravel, it is very important to monitor the contact displacement of the circuit breaker. Necessary, and in the existing displacement display system, there are generally disadvantages such as large volume, unfriendly human-computer interaction display, and no storage function. ...

AI Technical Summary

Problems solved by technology

The circuit breaker disconnects and closes the circuit through the opening and closing of the contacts. Since the displacement curve of the moving contact can partially reflect the mechanical characteristics of the circuit breaker such as opening and closing speed and overtravel, it is very important to monitor the contact displacement of the circuit breaker. Necessary, and in the existing displacement display system, there are generally disadvantages such as large size, unfriendly human-computer interaction display, and no save function

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