CN201514454U - Intelligent long-range cable short circuit earth fault alarm device - Google Patents
Intelligent long-range cable short circuit earth fault alarm device Download PDFInfo
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- CN201514454U CN201514454U CN2009201879044U CN200920187904U CN201514454U CN 201514454 U CN201514454 U CN 201514454U CN 2009201879044 U CN2009201879044 U CN 2009201879044U CN 200920187904 U CN200920187904 U CN 200920187904U CN 201514454 U CN201514454 U CN 201514454U
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Abstract
The utility model relates to an intelligent long-range cable short circuit earth fault alarm device, which is characterized in that the device comprises a system host machine which consists of a photoelectric signal converting module, a microprocessor control system, an LED display module, a long-range communication module, a power source module and a key insert module; an earth sensor and a short circuit sensor are adopted to collect the power grid fault signals which are converted into optical signals through the photoelectric signal converting module so as to be transmitted to the system host machine through the cable. Through the utility model, not only the fault point and the fault type can be detected reliably with rapidity, but also the diagnostic-information can be transmitted to remote control end, so as to facilitate the management and the maintenance.
Description
Technical field
The utility model relates to a kind of accident warning device, refers in particular to the accident warning device that is used for the high pressure transmission and distribution network, belongs to the electronic alarm technical field.
Background technology
Transmission and distribution network is the same as extending everywhere like cobweb, and its circuit is long to distribute extensively, and every electric substation's power supply area tens is to the hundreds of kilometer, some electric line passes complex-terrains such as field, grassland, high mountain and desert, away from highway, under few, the ungetable situation of personnel, management difficulty is big; Particularly present many urban distribution network networks all are embedded in the underground pipeline, be short-circuited or during earth fault in electrical network branch at present, line attendant branch's patrol one by one certainly will cause long-time power failure like this, influences the production and the people's lives of this area.Manually fixing a breakdown on the other hand just restores electricity when inaccurate and can make high-power high-current switch tripping operation, and switch life is subjected to very big influence.
The utility model content
The utility model is for avoiding above-mentioned existing in prior technology weak point, a kind of intelligent remote cable short circuit earth fault warning device is provided, can be reliably and reflect trouble spot and fault type apace, these diagnostic messages can be uploaded to the far-end control end again, conveniently administer and maintain.
The utility model technical solution problem adopts following technical scheme:
The design feature of the utility model intelligent remote cable short circuit earth fault warning device is:
The system host that setting is made of photosignal modular converter, microprocessor control system, LED display module, remote communication module, power module and button insert module;
Gather the electric network fault signal with grounding sensor and short-circuit sensor, described electric network fault signal is transferred to system host by optical cable after converting light signal to through the electro-optical signal modular converter;
The light signal that receives the optical cable input with the photosignal modular converter in the described system host also is converted to electric signal, described electric signal is encoded in micro treatment control system, decoding and judge after output signal to LED display module and remote communication module respectively; By described remote communication module modulation remote transmission;
The design feature of the utility model intelligent remote cable short circuit earth fault warning device is that also described grounding sensor, short-circuit sensor are to be made of rectifier bridge heap D1-4, diode D5, D6, resistance R 1, R2, R3, R4, R5, R6, adjustable resistance TR1, inductance L 1, capacitor C 1, C2, stabilivolt ZD1, thyristor U1 and LED 1; With described inductance L 1 is signal detection device, is control device with described thyristor U1, is display device with described LED1 luminotron.
Compared with the prior art, the utility model beneficial effect is embodied in:
1, the utility model can be directly installed on electric equipments such as high-tension switch cabinet, looped network case, cable distribution box and feeds out on the cable of loop and transformation and distribution system, and intelligent and good energy-saving effect is guaranteed grid automation control and intelligent the operation substantially with it.
2, the utility model can guarantee not to be subjected to external interference under the big electric current environment of high-intensity magnetic field, exactly electric network fault is carried out intelligent diagnostics, and can be with fault upload to the remote monitoring chamber, is beneficial to electrical network and safeguards and fix a breakdown.
Description of drawings
Fig. 1 is a total system functional diagram of the present utility model;
Fig. 2 is a sensor circuit schematic diagram of the present utility model;
Fig. 3 is the construction and erection drawing of the utility model at trunk type electrical network;
Fig. 4 is the construction and erection drawing at the closed-loop type electrical network of the present utility model.
Embodiment
Below pass through embodiment, and the utility model is described in further detail in conjunction with the accompanying drawings.
Referring to Fig. 1, the system host that the present embodiment setting is made of photosignal modular converter, microprocessor control system, LED display module, remote communication module, power module and button insert module;
Gather the electric network fault signal with grounding sensor and short-circuit sensor, the electric network fault signal is transferred to system host by optical cable after converting light signal to through the electro-optical signal modular converter;
Shown in Figure 1, the light signal that receives the optical cable input with the photosignal modular converter in the system host also is converted to electric signal, electric signal is encoded in micro treatment control system, decoding and judge after output signal to LED display module and remote communication module respectively; By remote communication module modulation remote transmission;
Sensor comprises grounding sensor and short-circuit sensor, sensor can be directly installed on electrical network high-tension switch cabinet, ring main unit or cable distribution box and feed out on the cable of loop and transformation and distribution system, become equipotential with cable, and sensor adopts high insulation, barrier material cast, partly directly do not contact with the conduction of cable, it is little influenced by forceful electric power.
In concrete the enforcement, microprocessor control system is operated according to each system of user's different key operation control accordingly by embedded program, and in real time the signal of sensor acquisition is carried out analysis and judgement, keeps the communication function with remote communication module.Microprocessor control system is judged sensor signal by adopting the FUZZY ALGORITHMS FOR CONTROL express analysis, and built-in watchdog function realization Software Anti-interference, also adopts the dormancy awakening function to guarantee the low-power consumption of system.
Power module independently is arranged in the battery case, battery case is provided with an independent panel of opening, this independent openable panel is embedded in system's complete machine panel, open the battery case cover plate separately and can change battery, need not open main frame and just can carry out the battery altering operation, this form also helps the airtight of system host, and is dustproof anti-interference to reach protection against the tide, and the steady operation that is fit to system under the abominable installation environment more.
Referring to Fig. 2, in the present embodiment, the circuit of grounding sensor, short-circuit sensor is piled D1-4, diode D5, D6, resistance R 1, R2, R3, R4, R5, R6, adjustable resistance TR1, inductance L 1, capacitor C 1, capacitor C 2, stabilivolt ZD1, thyristor U1 and LED 1 by rectifier bridge and is formed sensor detection circuit, wherein the difference of grounding sensor and short-circuit sensor is that the parameter of L1 is different, both sensing detection principle unanimities all are that current break is produced cue.Its groundwork principle is: the electric current of electrical network cable is undergone mutation, peripheral magnetic field will be changed, be converted to current signal through inductance L 1 magnetoelectricity, through resistance R 1, capacitor C 1, rectifier bridge heap D1-4 filter rectification, compare with voltage stabilizer ZD1, surpass the fault-signal conducting thyristor U1 of voltage stabilizing value, and make LED1 luminous.
The microprocessor control system of system host of the present utility model adopts fuzzy algorithm, can judge electric network fault quickly and accurately, and send warning message.
The utility model be illustrated in respectively in the trunk type electrical network the construction and installation mode and in the construction and installation mode of closed-loop type electrical network, the utility model device is installed between each parallel circuit node, can judge the trouble spot of electrical network according to the LED alarm module indication of each node.Example as shown in Figure 3, Figure 4, when a G broke down, all devices of its superior node all had indicating fault, indicated that the trouble spot has indicating fault node and non-fault to show between node in final stage.
Claims (2)
1. intelligent remote cable short circuit earth fault warning device is characterized in that:
The system host that setting is made of photosignal modular converter, microprocessor control system, LED display module, remote communication module, power module and button insert module;
Gather the electric network fault signal with grounding sensor and short-circuit sensor, described electric network fault signal is transferred to system host by optical cable after converting light signal to through the electro-optical signal modular converter;
The light signal that receives the optical cable input with the photosignal modular converter in the described system host also is converted to electric signal, described electric signal is encoded in micro treatment control system, decoding and judge after output signal to LED display module and remote communication module respectively; By described remote communication module modulation remote transmission.
2. intelligent remote cable short circuit earth fault warning device according to claim 1 is characterized in that described grounding sensor, short-circuit sensor are to be made of rectifier bridge heap D1-4, diode D5, D6, resistance R 1, R2, R3, R4, R5, R6, adjustable resistance TR1, inductance L 1, capacitor C 1, C2, stabilivolt ZD1, thyristor U1 and LED 1; With described inductance L 1 is signal detection device, is control device with described thyristor U1, is display device with described LED1 luminotron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201879044U CN201514454U (en) | 2009-09-30 | 2009-09-30 | Intelligent long-range cable short circuit earth fault alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201879044U CN201514454U (en) | 2009-09-30 | 2009-09-30 | Intelligent long-range cable short circuit earth fault alarm device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201514454U true CN201514454U (en) | 2010-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201879044U Expired - Fee Related CN201514454U (en) | 2009-09-30 | 2009-09-30 | Intelligent long-range cable short circuit earth fault alarm device |
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| Country | Link |
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| CN (1) | CN201514454U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103217657A (en) * | 2013-03-23 | 2013-07-24 | 国家电网公司 | Detection method of switch cabinet measuring and controlling device of converting station |
| CN106199245A (en) * | 2016-06-24 | 2016-12-07 | 山东联合电力设计有限公司 | The malfunction detection system of a kind of high tension cable and method |
| CN108710017A (en) * | 2018-05-03 | 2018-10-26 | 南京蓝园精瑞电气有限公司 | It is a kind of that electricity and measurement switching apparatus and system are taken based on single magnetic loop |
-
2009
- 2009-09-30 CN CN2009201879044U patent/CN201514454U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103217657A (en) * | 2013-03-23 | 2013-07-24 | 国家电网公司 | Detection method of switch cabinet measuring and controlling device of converting station |
| CN103217657B (en) * | 2013-03-23 | 2015-06-10 | 国家电网公司 | Detection method of switch cabinet measuring and controlling device of converting station |
| CN106199245A (en) * | 2016-06-24 | 2016-12-07 | 山东联合电力设计有限公司 | The malfunction detection system of a kind of high tension cable and method |
| CN108710017A (en) * | 2018-05-03 | 2018-10-26 | 南京蓝园精瑞电气有限公司 | It is a kind of that electricity and measurement switching apparatus and system are taken based on single magnetic loop |
| CN108710017B (en) * | 2018-05-03 | 2024-04-02 | 深圳市蓝希望电子有限公司 | Electricity taking and measuring switching device and system based on single magnetic loop |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100623 Termination date: 20120930 |