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Comprehensive automatic transformer substation snow slide testing device based on time synchronization system

A time synchronization system and comprehensive automation technology, applied in measuring devices, clocks driven by synchronous motors, synchronization, etc., can solve the problems that cannot satisfy the synchronization and accuracy of multiple remote signaling points, and achieve the accuracy of action time Improve and ensure the effect of accuracy and synchronization

Active Publication Date: 2013-08-28
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the manual test avalanche test cannot satisfy the synchronization and accuracy of the actions of multiple remote signaling points, and proposes a comprehensive automatic substation avalanche test device based on a time synchronization system

Method used

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  • Comprehensive automatic transformer substation snow slide testing device based on time synchronization system
  • Comprehensive automatic transformer substation snow slide testing device based on time synchronization system

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Experimental program
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specific Embodiment approach 1

[0026] Specific implementation mode 1: see figure 1 This embodiment is described. A comprehensive automated substation avalanche test device based on a time synchronization system described in this embodiment includes an external clock input unit, a serial communication unit 1, a timekeeping unit 2, an external clock receiving unit 3, and N Pulse output unit 4, main microprocessor unit 5 and clock source selection circuit 6; N is an integer greater than 0,

[0027] The signal output end of the external clock input unit is connected with the clock signal input end of the external clock receiving unit 3; the signal output end of the external clock receiving unit 3 is connected with the first clock signal input end of the clock source selection circuit 6 ,

[0028] The first control signal output end of the main microprocessor unit 5 is connected to the first control signal input end of the clock source selection circuit 6, and the second control signal output end of the main mi...

specific Embodiment approach 2

[0029] Specific implementation two: see figure 2 Describing this embodiment, the difference between this embodiment and the comprehensive automatic substation avalanche testing device based on the time synchronization system described in the first embodiment is that the main microprocessor unit 5 includes a main microprocessor 5-1 , keyboard circuit 5-2, liquid crystal display 5-3, first serial port drive unit 5-4, RS422 bus drive unit 5-6 and LED indication circuit 5-7;

[0030] The first serial port of the main microprocessor 5-1 is connected to the signal input and output end of the first serial port drive unit 5-4, and the RS422 serial communication port of the main microprocessor 5-1 is connected to the RS422 bus drive unit The signal input and output ends of 5-6 are connected, the indicator light control signal output end of the main microprocessor 5-1 is connected with the control signal input end of the LED indication circuit 5-7, and the key signal input end of the m...

specific Embodiment approach 3

[0033] Specific implementation mode three: see figure 1 Illustrating this embodiment, the difference between this embodiment and the time synchronization system-based comprehensive automatic substation avalanche test device described in the first embodiment is that the pulse feedback signal output terminal of the external clock receiving unit 3 outputs the A time synchronization signal containing year, month, day, hour, minute, and second information.

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Abstract

The invention discloses a comprehensive automatic transformer substation snow slide testing device based on a time synchronization system, which belongs to the field of testing of transformer substation comprehensive automatic systems, particularly relates to an ideal testing and verifying tool of an electric power dispatching system, and aims to the problem of incapability of satisfying the acting synchronism and accuracy of a plurality of remote signaling points existing in manual test of snow slide. The comprehensive automatic transformer substation snow slide testing device comprises an external clock input unit, a serial port communication unit, a timing unit, an external clock receiving unit, N pulse output units, a main microprocessor unit and a clock source selecting circuit. According to the design scheme of time synchronization information transmitted by the external clock receiving unit, the main microprocessor unit is used for receiving a time synchronization information signal transmitted by the external clock receiving unit for serving as a clock source of a system, and the selected signal is taken as an output standard pulse per second signal by using the clock source selecting circuit; and the comprehensive automatic transformer substation snow slide testing device is mainly applied to the field of detection of electric power equipment.

Description

technical field [0001] The invention belongs to the testing field of a comprehensive automation system of a substation, in particular to an ideal testing and calibration tool for a power dispatching system. Background technique [0002] In the detection of power equipment, it is necessary to perform avalanche tests on the equipment, that is, multiple remote signaling points are tested at the same time to judge the consistency and accuracy of events. Multiple remote signaling points are required to act at the same time and ensure the synchronization and accuracy of the action time. The manual test cannot meet the synchronization and accuracy of the actions of multiple remote signaling points. The accuracy of the action time of the manual test can reach 10ms. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to solve the problem that the manual test avalanche test test cannot satisfy the synchronization and accuracy of the actions of multiple remote s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00G04G7/00
Inventor 王长东梁岩姚文明孙红李伟都兴云于建武胡宝臣
Owner STATE GRID CORP OF CHINA