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On-line monitoring method and system for converting station high voltage electrical apparatus

A technology for high-voltage electrical equipment and substations, applied in the field of online monitoring of high-voltage electrical equipment, can solve the problems of large investment, no synchronous measurement solution, and waste of funds

Active Publication Date: 2006-09-06
WUHAN NARI LIABILITY OF STATE GRID ELECTRIC POWER RES INST
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Problems solved by technology

This invention proposes an open online monitoring and early fault prediction and diagnosis system combining wired and wireless technologies. However, this system does not have a unified on-site collection and communication system, and a collection and monitoring workstation is required to monitor a device. Investment Larger, waste of money, heavy daily operation and maintenance workload; moreover, when multiple devices perform synchronous acquisition and monitoring, no synchronous measurement solution is provided

Method used

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  • On-line monitoring method and system for converting station high voltage electrical apparatus
  • On-line monitoring method and system for converting station high voltage electrical apparatus
  • On-line monitoring method and system for converting station high voltage electrical apparatus

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Embodiment

[0037] figure 1 It is a block diagram of the system structure of the present invention, designed according to a layered distributed system, and its basic framework is the sensor unit 1 of the first layer, the online monitoring terminal 2 of the second layer, the station side monitoring station 3 of the third layer and the bureau side monitoring main body of the fourth layer The building block structure of station 4 four-story system is scalable, including the following steps:

[0038] 1) A number of sensor units 1 on the first floor complete the transformation function of online acquisition signals of several high-voltage electrical equipment in the substation; the voltage signal is obtained by the busbar through the voltage sensor, and the current signal is obtained by the core-through sensor installed on the grounding wire of the arrester for the arrester Obtained; for capacitive insulation equipment, it is obtained by the core-through sensor installed on the grounding wire ...

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Abstract

As hierarchical distributed system with open-ended characteristic, the basic frame comprises: the first layer as sensor unit, the second layer as on-line monitor terminal, the third layer for substation monitor, and the fourth layer for bureau monitor. This invention uses uniform communication protocol, and reduces investment and daily maintenance.

Description

technical field [0001] The invention belongs to the field of on-line monitoring of high-voltage electrical equipment, and in particular relates to a method and system for on-line monitoring of high-voltage electrical equipment in substations such as the insulation state of capacitive equipment and lightning arresters, the electrical life and mechanical state of circuit breakers, and the like. Background technique [0002] Since the current regular maintenance system commonly implemented in the power system is no longer suitable for the needs of the reform and development of the power system and the requirements of power users for the reliability of power supply, power companies have urgently needed to implement more advanced state-of-the-art maintenance in the world, that is, according to the equipment The operating status determines whether and how to maintain, and on-line monitoring is a necessary and effective means to implement condition-based maintenance of high-voltage ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00G01R31/12G01R31/327G01R31/06H02J13/00H04L29/06G06Q50/00
CPCY04S10/58
Inventor 王勤吕玲王宇钱冠军钱进
Owner WUHAN NARI LIABILITY OF STATE GRID ELECTRIC POWER RES INST
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