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Switch detection device

A technology of switch monitoring and single-chip microcomputer, applied in the field of power devices, can solve problems such as hidden dangers of power grids and inability to play a role in control and protection.

Inactive Publication Date: 2012-10-31
周杨一帆
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the switchgear itself fails, it will not be able to play the role of control and protection, and there will be a major hidden danger to the power grid.

Method used

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  • Switch detection device

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Embodiment Construction

[0019] Such as figure 1 The on-off coil current and voltage sampling circuit 2 and the sensing signal of the infrared temperature sensor array 3 are sent to the single-chip microcomputer system 1 with 80C196 single-chip microcomputer as the core after filtering, amplifying, and analog-to-digital conversion processing, the linear displacement sensor 4, and the rotary photoelectric encoder The sensing signal of 5 is sent to the single-chip microcomputer system 1 after being processed by displacement sampling current, the power supply system 7 supplies power for the single-chip microcomputer system 1 and the corresponding signal processing circuit, and the processing result is sent to the host computer through the RS232 interface 9, and the peripheral keyboard display circuit 8 and the single-chip microcomputer System 1 is connected.

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Abstract

The invention discloses a switch detection device, which is characterized in that sensing signals of an on-off coil current and voltage sampling circuit and an infrared temperature sensor array are sent into a single chip microcomputer (SCM) system taking a 80C 196 SCM as the core after being filtered, amplified and subject to analog-to-digital conversion; sensing signals of a linear displacement sensor and a rotary photoelectric encoder are sent into the SCM system after being processed by a displacement sampling current; a power source system supplies power to the SCM system and a corresponding signal processing circuit; a processing result is sent to an upper computer through an RS232 interface; and a peripheral keyboard display circuit is connected with the MCU system.

Description

technical field [0001] The present invention relates to an electric device, and more specifically, relates to an on-line switch monitoring device for a circuit breaker. Background technique [0002] As an important device in the power system, the circuit breaker plays a role in control and protection in the power grid. Therefore, the operating state of the switchgear is very important. If the switchgear itself fails, it will not be able to play the role of control and protection, and there will be a major hidden danger to the power grid. [0003] With the development of science and technology, the diagnostic technology of power equipment has undergone a change from periodic maintenance to condition-based maintenance. The so-called condition-based maintenance refers to the arrangement of maintenance according to the actual operating status of each equipment, rather than isolated phenomena such as the number of operations and years stipulated in the provisions. The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/327
Inventor 周杨一帆
Owner 周杨一帆