CN203870191U - Low-voltage line fault locating terminal of power distribution area - Google Patents

Low-voltage line fault locating terminal of power distribution area Download PDF

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Publication number
CN203870191U
CN203870191U CN201420224449.1U CN201420224449U CN203870191U CN 203870191 U CN203870191 U CN 203870191U CN 201420224449 U CN201420224449 U CN 201420224449U CN 203870191 U CN203870191 U CN 203870191U
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CN
China
Prior art keywords
circuit
transformer monitoring
wireless communication
low
voltage
Prior art date
Application number
CN201420224449.1U
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Chinese (zh)
Inventor
刘明祥
周捷
朱金大
孙国城
吴�琳
胡绍刚
阎际驰
张艳萍
程宇
周磊
Original Assignee
国电南瑞科技股份有限公司
国网辽宁省电力有限公司鞍山供电公司
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Priority to CN201420224449.1U priority Critical patent/CN203870191U/en
Application granted granted Critical
Publication of CN203870191U publication Critical patent/CN203870191U/en

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Abstract

The utility model discloses a low-voltage line fault locating terminal of a power distribution area. The low-voltage line fault locating terminal comprises a distribution transformer monitoring wireless communication module, a distribution transformer monitoring alarm module, a voltage sensor, a current sensor and the like. A distribution transformer monitoring acquisition module is equipped with a power circuit, a fault discriminating circuit, and a signal indicating circuit that are mutually connected. The signal indicating circuit, the distribution transformer monitoring wireless communication module, and the distribution transformer monitoring alarm module are mutually connected. The secondary winding of the voltage sensor is connected with the power circuit and the fault discriminating circuit through a signal cable. The secondary winding of the current sensor is connected with the fault discriminating circuit through a signal cable. The low-voltage line fault locating terminal may communicates with a master station. The access of short-circuit fault current is correctly determined and is located by a master station background system. Thus, locating problems of various line fault line sections and branches are solved.

Description

A kind of low-voltage circuit localization of fault terminal for power distribution station

Technical field

The utility model relates to distribution power automation terminal, relates in particular to a kind of low-voltage circuit localization of fault terminal of power distribution station, belongs to Power System and its Automation field.

Background technology

The collection of the various real-time running datas of the comprehensive circuit in power distribution station, low-voltage network, large user and low pressure residential electricity consumption, for power supply enterprise provides the platform of the information such as the electric power thus supplied of fast, truly, accurately understanding each power supply area and various power consumer reality, the quality of power supply, load condition, electric weight, reactive power; To realize the monitoring low and medium voltage distribution network quality of power supply in real time, improve power consumer power supply reliability, realize distribution line harmonic wave control, saving energy and decreasing loss, reactive-load compensation, improve power supply enterprise's work efficiency, for its intelligent decision provides effective technology measure and the technological means of accurate foundation.At present, when line fault occurs on user's side line road, the fault isolation time is long, even need repeatedly to overlap to fix a breakdown, or manual inspection mode investigates fault zone, has had influence on reliability and the power supply quality of powering.

Summary of the invention

Goal of the invention: in order to overcome the deficiencies in the prior art, the invention provides a kind of low-voltage circuit localization of fault terminal for power distribution station, failure message can be sent to distribution main website, Bing You main website background system positions, thereby has solved the orientation problem of various faulty line sections and branch line.

Technical scheme: for solving the problems of the technologies described above, the technical solution used in the present invention is:

A low-voltage circuit localization of fault terminal for power distribution station, is characterized in that: comprise distributing transformer monitoring acquisition module, distributing transformer monitoring wireless communication module, distributing transformer monitoring alarm module, voltage sensor, current sensor;

Power circuit, failure discriminating circuit and signal indicating circuit are set in distributing transformer monitoring acquisition module;

Between described power circuit, failure discriminating circuit and signal indicating circuit, be connected to each other, signal indicating circuit and distributing transformer monitoring wireless communication module, distributing transformer monitoring alarm module are connected to each other;

The secondary side winding of voltage sensor is connected to power circuit and failure discriminating circuit by signal cable, and the secondary side winding of current sensor is connected to failure discriminating circuit by signal cable; The first side winding of voltage sensor, current sensor gathers respectively voltage, the current signal on electric distribution network overhead wire or cable line;

Communication is carried out in distributing transformer monitoring wireless communication module and the wireless connections of distribution main website.

The failure message of failure discriminating circuit being exported by distributing transformer monitoring wireless communication module is by delivering to main website on wireless GPRS mode or GSM short message mode.

Preferably, longitudinal Communication Protocol Implementation Interface of the low-voltage circuit localization of fault terminal of described power distribution station comprises IEC60870-5-101 protocol interface, IEC60870-5-104 protocol interface or DL645 protocol interface, by above stipulations, failure message is sent to distribution main website, or is sent to operating maintenance personnel's handheld terminal on the spot.

Preferably, the communication interface of the low-voltage circuit localization of fault terminal of described power distribution station comprises RJ45 Ethernet interface, RS232/485 serial port, infrared interface and/or wireless GPRS communication interface etc., and distributing transformer monitoring wireless communication module carries out information interaction by these interfaces and main website.Such as 1 RJ45 Ethernet interface and 2 RS232/485 serial ports, 1 infrared interface and 1 wireless GPRS communication interface.

This locating terminal mainly arranges on the distribution line that is applied to 10kV and 380V.

Preferably, in described distributing transformer monitoring acquisition module, power circuit is set, failure discriminating circuit and signal indicating circuit, power circuit, between failure discriminating circuit and signal indicating circuit, be connected to each other, signal indicating circuit and distributing transformer monitoring wireless communication module, distributing transformer monitoring alarm module is connected to each other, the secondary side winding of voltage sensor is connected to power circuit and the failure discriminating circuit in signal box by signal cable, the secondary side winding of current sensor is connected to the failure discriminating circuit in signal box by signal cable, voltage on main collection circuit, the magnitude of current and other digital informations.

Preferably, described distributing transformer monitoring wireless communication module, mainly comprise wireless communication unit, sim card socket, radio antenna etc., form wireless communication module, sim card socket and radio antenna and wireless communication unit carry out signal transmission, and wireless communication unit passes through communication interaction data through radio antenna and main website.

Preferably, described distributing transformer monitoring alarm module, mainly comprises the alarm indication of various ways, as alarm indicator, and alarm display board.

Beneficial effect:

The low-voltage circuit localization of fault terminal of power distribution station of the present utility model can correctly judge the path of short-circuit current, and by radio communication, fault position information is sent to background system and positions, thereby solved the orientation problem of various faulty line sections and branch line, reduce fault handling time, reduce power off time, improve power supply reliability.

Accompanying drawing explanation

Fig. 1 is that a terminal of the present utility model forms schematic block diagram;

Fig. 2 is an application example schematic diagram of the present utility model.

Embodiment

Below in conjunction with accompanying drawing, this patent is further described.

The low-voltage circuit localization of fault terminal that is a power distribution station of the present utility model as Fig. 1 forms schematic block diagram, and the low-voltage circuit localization of fault terminal of power distribution station mainly comprises path monitoring acquisition module, path monitoring wireless communication module, path monitoring alarm module, voltage sensor, current sensor etc.; Power circuit, failure discriminating circuit and signal indicating circuit are set in path monitoring acquisition module, between power circuit, failure discriminating circuit and signal indicating circuit, be connected to each other, signal indicating circuit and path monitoring wireless communication module, path monitoring alarm module are connected to each other, the secondary side winding of voltage sensor is connected to power circuit and the failure discriminating circuit in signal box by signal cable, and the secondary side winding of current sensor is connected to the failure discriminating circuit in signal box by signal cable.It can correctly judge the path of short-circuit current, and by radio communication, fault position information is sent to background system and positions.

Be illustrated in figure 2 an application example schematic diagram that adopts the utility model work.

(1) on electric distribution network overhead wire or cable line, install the low-voltage circuit localization of fault terminal of power distribution station additional;

(2) malfunction of the real-time detection line of failure discriminating circuit arranging in distributing transformer monitoring acquisition module, when having short circuit or earth fault to occur, distributing transformer monitoring alarm module sends alarm signal, and produces warning information;

(3) distributing transformer monitoring acquisition module sends to main website backstage by wireless GPRS mode or GSM short message mode by failure message;

(4) by main website backstage to reporting signal to carry out Macro or mass analysis, realize abort situation location, arrange personnel's handling failure.

The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims (6)

1. for a low-voltage circuit localization of fault terminal for power distribution station, it is characterized in that: comprise distributing transformer monitoring acquisition module, distributing transformer monitoring wireless communication module, distributing transformer monitoring alarm module, voltage sensor, current sensor;
Power circuit, failure discriminating circuit and signal indicating circuit are set in distributing transformer monitoring acquisition module;
Between described power circuit, failure discriminating circuit and signal indicating circuit, be connected to each other, signal indicating circuit and distributing transformer monitoring wireless communication module, distributing transformer monitoring alarm module are connected to each other;
The secondary side winding of voltage sensor is connected to power circuit and failure discriminating circuit by signal cable, and the secondary side winding of current sensor is connected to failure discriminating circuit by signal cable; The first side winding of voltage sensor, current sensor gathers respectively voltage, the current signal on electric distribution network overhead wire or cable line;
Communication is carried out in distributing transformer monitoring wireless communication module and the wireless connections of distribution main website.
2. the low-voltage circuit localization of fault terminal for power distribution station according to claim 1, is characterized in that: the failure message of failure discriminating circuit being exported by distributing transformer monitoring wireless communication module is by delivering to main website on wireless GPRS mode or GSM short message mode.
3. the low-voltage circuit localization of fault terminal for power distribution station according to claim 1, it is characterized in that: a plurality of communication interfaces are set, comprise RJ45 Ethernet interface, RS232/485 serial port, infrared interface and/or wireless GPRS communication interface, distributing transformer monitoring wireless communication module carries out information interaction by these interfaces and main website.
4. the low-voltage circuit localization of fault terminal for power distribution station according to claim 1, it is characterized in that: configure longitudinal Communication Protocol Implementation Interface, comprise IEC60870-5-101 protocol interface, IEC60870-5-104 protocol interface or DL645 protocol interface, by above stipulations, failure message is sent to distribution main website, or is sent to operating maintenance personnel's handheld terminal on the spot.
5. the low-voltage circuit localization of fault terminal for power distribution station according to claim 1, is characterized in that: be arranged on the distribution line of 10kV or 380V.
6. the low-voltage circuit localization of fault terminal for power distribution station according to claim 1 and 2, it is characterized in that: sim card socket and radio antenna that distributing transformer monitoring wireless communication module comprises wireless communication unit, carries out signal transmission with wireless communication unit, wireless communication unit passes through communication interaction data through radio antenna with main website.
CN201420224449.1U 2014-05-05 2014-05-05 Low-voltage line fault locating terminal of power distribution area CN203870191U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420224449.1U CN203870191U (en) 2014-05-05 2014-05-05 Low-voltage line fault locating terminal of power distribution area

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420224449.1U CN203870191U (en) 2014-05-05 2014-05-05 Low-voltage line fault locating terminal of power distribution area

Publications (1)

Publication Number Publication Date
CN203870191U true CN203870191U (en) 2014-10-08

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103983885A (en) * 2014-05-05 2014-08-13 国电南瑞科技股份有限公司 Low-voltage circuit fault locating terminal and method used for power distribution substation region
CN104297633A (en) * 2014-10-14 2015-01-21 安徽科盟电子科技有限公司 Power distribution network fault positioning system
CN104330704A (en) * 2014-11-13 2015-02-04 上海萌烨电力科技有限公司 Transmission and distribution power grid fault positioning system
CN106249675A (en) * 2016-08-03 2016-12-21 合肥奇也信息科技有限公司 A kind of production line job failure on-line monitoring processing system
CN106291212A (en) * 2015-05-29 2017-01-04 梁克标 A kind of Novel fault indicator
CN106451442A (en) * 2016-11-26 2017-02-22 国网安徽省电力公司宿州供电公司 Power failure time determination method based on power distribution network topological structure
CN106771873A (en) * 2016-12-30 2017-05-31 国网上海市电力公司 A kind of distribution network failure quick positioning system
CN106814285A (en) * 2016-12-30 2017-06-09 国网上海市电力公司 A kind of method for rapidly positioning of distribution network failure

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103983885A (en) * 2014-05-05 2014-08-13 国电南瑞科技股份有限公司 Low-voltage circuit fault locating terminal and method used for power distribution substation region
CN104297633A (en) * 2014-10-14 2015-01-21 安徽科盟电子科技有限公司 Power distribution network fault positioning system
CN104330704A (en) * 2014-11-13 2015-02-04 上海萌烨电力科技有限公司 Transmission and distribution power grid fault positioning system
CN104330704B (en) * 2014-11-13 2017-02-22 上海萌烨电力科技有限公司 Transmission and distribution power grid fault positioning system
CN106291212A (en) * 2015-05-29 2017-01-04 梁克标 A kind of Novel fault indicator
CN106249675A (en) * 2016-08-03 2016-12-21 合肥奇也信息科技有限公司 A kind of production line job failure on-line monitoring processing system
CN106451442A (en) * 2016-11-26 2017-02-22 国网安徽省电力公司宿州供电公司 Power failure time determination method based on power distribution network topological structure
CN106771873A (en) * 2016-12-30 2017-05-31 国网上海市电力公司 A kind of distribution network failure quick positioning system
CN106814285A (en) * 2016-12-30 2017-06-09 国网上海市电力公司 A kind of method for rapidly positioning of distribution network failure

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