System for diagnosing and positioning ground grid faults of electric system

A fault diagnosis and positioning system technology, applied in fault location, information technology support system, etc., can solve the problems of limited operating conditions, large workload, slow speed, etc., to achieve the effect of small workload, fast speed, and portable equipment

Inactive Publication Date: 2009-11-04
NANJING VOCATIONAL UNIV OF IND TECH
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  • Abstract
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Problems solved by technology

[0004] In the past, it was generally found that the grounding resistance was unqualified or an accident occurred, and the electrical connection fault point of the ground grid was found by excavation. This method has great blindness, heavy workload, and slow speed. It is affected by operating conditions limit

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  • System for diagnosing and positioning ground grid faults of electric system
  • System for diagnosing and positioning ground grid faults of electric system

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Embodiment Construction

[0019] A power system grounding grid fault diagnosis and positioning system, see figure 1 , The fault diagnosis and location system includes a host workstation, a data measurement and acquisition device, a communication server, a network device, a voice alarm device and a display device. The host workstation includes database management, processes the data transmitted by the data measurement and acquisition device, and obtains various information required; the data measurement and acquisition device measures the voltage of the measurable nodes, and transmits the data to the host workstation; The communication server completes the communication with the on-board dispatching and other computer systems, and inquires the operation status of the current power station equipment online, and automatically alarms when necessary; the network equipment is connected to a fast Ethernet network through a network switch; the voice alarm device can respond to power station failures and acciden...

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Abstract

The invention discloses a system for diagnosing and positioning ground grid faults of an electric system, which comprises a host computer working station, a data measuring and acquiring device, a communication server, a network device, a voice alarm device and a display device, wherein the host computer working station comprises data base management for processing data sent by the data measuring and acquiring device and obtaining various required information; the data measuring and acquiring device measures the voltage of a measurable node; the communication server finishes the communications with computer scheduling and other computer systems; the network device is connected into a fast Ethernet through a network switch; the voice alarm device performs voice alarm on electric station faults and accidents; and the display device outputs and displays the required information. As an independently operated working station, the system can be combined with various devices to form a comprehensive automatic system for a transformer substation. The system has the advantages of small workload, high speed, portable devices and the like, and does not influence the normal operation of the electric system.

Description

technical field [0001] The invention relates to a grounding grid fault diagnosis and positioning system of a power system, specifically a grounding grid fault diagnosis and positioning system for diagnosing and locating grounding grid corrosion faults without being limited by operating conditions, without power failure and without excavation . Background technique [0002] As a basic industry in the national economy, the electric power industry's basic task is to provide "sufficient, reliable, qualified and cheap" electric energy for the national economy and people's lives. The grounding grid is an important facility to maintain the safe and reliable operation of the power system and ensure the safety of operating personnel and electrical equipment. Whether the grounding network is good or not is one of the keys to safe production. Fault diagnosis can predict potential faults and hidden dangers in the grounding network. This will gradually become a strategic task. An impor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/08
CPCY04S10/522Y04S10/52
Inventor 许慧中
Owner NANJING VOCATIONAL UNIV OF IND TECH
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