Density relay comprehensive checking instrument of sulfur hexafluoride breaker

A technology of density relay and calibrator, which is applied in the direction of circuit breaker testing, instruments, scientific instruments, etc., and can solve the problem of excessive water content in gas

Inactive Publication Date: 2011-04-27
BEIHANG UNIV +2
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  • Abstract
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  • Application Information

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Problems solved by technology

These factors may lead to SF 6 Ga

Method used

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  • Density relay comprehensive checking instrument of sulfur hexafluoride breaker
  • Density relay comprehensive checking instrument of sulfur hexafluoride breaker
  • Density relay comprehensive checking instrument of sulfur hexafluoride breaker

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[0051] see Picture 11 As shown, a comprehensive calibrator for the density relay of a sulfur hexafluoride circuit breaker of the present invention includes three parts: a hardware structure, a software structure, and an external pneumatic unit. The relationship between the three is: the hardware structure drives the external pneumatic unit under the control of the software structure, performs data collection and analysis, and communicates with the monitoring center server unit of the hardware structure. The hardware structure is divided into two parts: the hardware structure of the lower computer and the hardware structure of the upper computer. The relationship between the two parts is: the hardware structure of the lower computer is installed in the field SF 6 Under the circuit breaker mechanism counter, the hardware structure of the host computer is installed on the power measurement counter in the main control room, and communication between them is realized through the CAN...

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Abstract

The invention provides a density relay comprehensive checking instrument of a sulfur hexafluoride (SF6) breaker. The density relay comprehensive checking instrument consists of a hardware structure, a software structure and a pneumatic unit. Under the control of the software structure, the hardware structure drives the pneumatic unit to perform data acquisition and data analysis, and to communicate with a monitoring centre server unit; the hardware structure is divided into lower computer hardware and upper computer hardware; the lower computer hardware is arranged under a spot SF6 breaker, and the upper computer hardware is arranged on a main control chamber power measuring counter, so the communication is realized by a controller area network (CAN) bus network; the software structure is also divided into lower computer software and upper computer software; the lower computer software controls the lower computer hardware to monitor a checking spot and transmits relevant data to the upper computer hardware; the upper computer software controls the upper computer hardware to receive and process the data; the pneumatic unit consists of an air cylinder and a pipeline; a piston in the air cylinder performs stretching and propelling under the driving of a stepping motor; and under the control of an intelligent control output unit, a pressure value of air in an air path can be changed. The density relay comprehensive checking instrument of the SF6 breaker has wide application prospect in the monitoring technical field.

Description

(1) Technical field: [0001] The present invention relates to a kind of sulfur hexafluoride (SF 6 ) Integrated calibrator for circuit breaker density relay (hereinafter referred to as integrated calibrator). The integrated calibrator can 6 The circuit breaker density relay is verified on-site and can be used for SF 6 The performance of the circuit breaker density relay is comprehensively evaluated to realize the equipment inspection, thereby improving the automation level and reliability of the power system, and effectively preventing the power system from SF 6 Disaster caused by failure of circuit breaker density relay. Which involves data acquisition technology, signal processing technology, intelligent reasoning technology, advanced control technology and CAN bus communication technology. The comprehensive calibrator belongs to the technical field of signal processing and monitoring. (2) Background technology: [0002] With the development of technology and economy, with SF 6 ...

Claims

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Application Information

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IPC IPC(8): G01R31/327G01N9/00G01N7/00G01M3/26
Inventor 胡晓光刘天羽乔晨曦杨树权张宏志傅新宇
Owner BEIHANG UNIV
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