Device for detection of mechanical characteristics and diagnosis of faults of high-voltage circuit breaker

Abstract

The invention discloses a device for detection of mechanical characteristics and diagnosis of faults of a high-voltage circuit breaker, and relates to a switch device in the technical field of electric power. The device for detection of the mechanical characteristics and diagnosis of the faults of the high-voltage circuit breaker comprises a power module, an AD conversion module, a USB / RS232 communication module, a computer, a signal processing module, a control module, a collection module and a USB / RS232 communication module. The device for detection of the mechanical characteristics and diagnosis of the faults of the high-voltage circuit breaker integrates a plurality of paths of collection signals which comprise a loop current of an energy storage motor of the high-voltage circuit breaker of a spring operating mechanism, a coil current of a switch-on releaser, a coil current of a switch-off releaser, vibration signals of the high-voltage breaker, and information content of the angular displacement and the speed of rotation of a main shaft, local information of the mechanical characteristic state of the high-voltage circuit breaker is obtained by collecting information content with different forms, analysis is carried out on the local information through the signal processing module of the device, and the local information is combined, superposed and deduced to generate judgment information of the mechanical characteristics of the high-voltage circuit breaker. The device for detection of the mechanical characteristics and diagnosis of the faults of the high-voltage circuit breaker is simple in structure, convenient to use and stable in monitoring.

Description

technical field [0001] The invention relates to a switchgear in the field of electric power technology, in particular to a device for detecting and diagnosing mechanical characteristics of a high-voltage circuit breaker. Background technique [0002] With the rapid development of my country's national economy, the growth of power demand has also accelerated in recent years, which puts forward higher requirements for the reliability and economy of power grid power supply. The circuit breaker is the most important control and protection equipment in the power system, and it is also the equipment with the most frequent mechanical and electrical actions in the substation. Its safe and reliable operation has very important engineering practical significance. The high-voltage circuit breaker should be able to break, close and carry the normal working current of the running line, and also carry, close and break the specified abnormal current within the specified time, such as overl...

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Problems solved by technology

[0004] Aiming at the deficiencies in the existing technology, the purpose of the present invention is to improve the defect that the existing high-voltage circuit breaker mechanical characteristic monitoring and fault diagnosis device cannot be transmitted over a long distance, and provide a high-voltage circuit breaker mechanical characteristic detection and fault diagnosis device to realize the Accurate Monitoring of High Voltage Circuit Breaker's Operating State

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