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Fault positioning system for 10kV power distribution network circuit

A line fault and positioning system technology, applied in the direction of fault location, information technology support system, etc., can solve the problems of fast power loss, poor real-time communication, high communication frequency, etc., and achieve the effect of solving the high communication cost

Active Publication Date: 2015-04-01
中航机场设备有限公司
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Problems solved by technology

The main problem of the former is poor real-time communication, especially when the line is long and multi-level relay is required, it takes a long time for the terminal data to be transmitted to the master station, and because the front-end fault indicator needs to forward the back-end data, communication The frequency is too high, and the power loss is very fast; the problem of the latter is that each group of fault indicators is equipped with a GPRS forwarding device, and the later communication costs are too high, and in the case of GPRS blind spots, reliable communication cannot be achieved

Method used

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  • Fault positioning system for 10kV power distribution network circuit
  • Fault positioning system for 10kV power distribution network circuit
  • Fault positioning system for 10kV power distribution network circuit

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Embodiment

[0026] The concentrator of the present invention has radio frequency communication and GPRS communication functions, and 1 to 4 groups of fault indicators can be respectively installed before and after the concentrator according to actual conditions. The cascading communication between the fault indicators at all levels is carried out through radio frequency. The concentrator receives the data of the fault indicator through the radio frequency communication module, and then sends it to the master station through the GPRS module to complete the communication of the whole system. The main advantages of this system are: the system can be flexibly networked according to the actual needs, there is no need to provide concentrators for each group of fault indicators, and the fault indicators do not need to be cascaded for communication, which is a combination of economy and real-time Consider a reasonable solution to the situation.

[0027] Such as figure 1 As shown, a line fault lo...

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Abstract

The invention relates to a fault positioning system for a 10kV power distribution network circuit. The fault positioning system comprises a main station, a concentrator, and fault indicators; the main station is connected with the concentrator in a GPRS (general packet radio service) communication manner, and the concentrator is connected with the fault indicators in a radio frequency communication manner. Compared with the prior art, the fault positioning system is flexible in networking, economical and practical, and problems that communication cost is over high, data is redundant, the fault indicators are arranged too densely and communication reliability is poor due to an unreasonable networking mode of the fault positioning system for the power distribution network circuit at present are solved.

Description

technical field [0001] The invention relates to a line fault location system of a distribution network, in particular to a line fault location system for a 10kV distribution network. Background technique [0002] With the advancement of smart grid construction, the demand for power grid companies to include medium and low voltage distribution lines in the scope of monitoring is becoming stronger and stronger. The 10kV distribution network directly faces power consumers, so the line structure is complex, and the joints are prone to short circuits, grounding, etc. Faults affect normal power supply. As a fault detection and positioning device, the fault indicator has been widely used in the distribution network. At present, the fault indicator is mainly divided into two types: mechanical and electronic. The mechanical fault indicator has simple functions and can only deal with short-circuit faults. It is helpless for ground faults, and it must cooperate with manual line inspec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/08
CPCY04S10/522Y04S10/52
Inventor 熊晨阳钱博宓欣佘益辉吴军生
Owner 中航机场设备有限公司
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