CN102364349A - Sensor for detecting faults of medium-voltage switch cabinet - Google Patents
Sensor for detecting faults of medium-voltage switch cabinet Download PDFInfo
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- CN102364349A CN102364349A CN2011103037771A CN201110303777A CN102364349A CN 102364349 A CN102364349 A CN 102364349A CN 2011103037771 A CN2011103037771 A CN 2011103037771A CN 201110303777 A CN201110303777 A CN 201110303777A CN 102364349 A CN102364349 A CN 102364349A
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- voltage switch
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- switch cabinet
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- Gas-Insulated Switchgears (AREA)
Abstract
The invention discloses a sensor for detecting faults of a medium-voltage switch cabinet. The sensor comprises a shell made of an insulation material, wherein an antenna for detecting an electromagnetic wave signal is arranged in the shell; the signal receiving range of the antenna is between 300 and 3,000MHz; and a signal wire of the antenna extends out of the shell. The medium-voltage switch cabinet can generate an electromagnetic wave when a discharging fault occurs, and the frequency range of the electromagnetic wave is more than 300MHz; when the sensor is arranged in the medium-voltage switch cabinet and the discharging fault occurs in the medium-voltage switch cabinet, the generated electromagnetic wave can pass through the shell and is induced by the antenna, and the antenna sends an induction signal to determine that the fault occurs in medium and high-voltage switch cabinets, so that medium-voltage switch cabinet equipment is convenient to overhaul; and the medium-voltage switch cabinet can generate a corresponding electromagnetic wave when the fault occurs, so the sensor has higher detection accuracy on the fault of the medium-voltage switch cabinet.
Description
Technical field
The present invention relates to a kind of sensor, particularly a kind of sensor that is used for detecting the Medium Voltage Switchgear fault.
Background technology
Medium Voltage Switchgear is to use extremely wide and the maximum switchgear of quantity; But owing to problem in aspect various degrees such as design, manufacturing, installation and operation maintenances; Thereby accident rate is than higher; In the switch cubicle accident of many character, the insulation fault pilosity is born in 10 kilovolts and above electric pressure, and the consequence that causes also can especially severe.Particularly enclosed switchgear insulation fault rate is higher, and often one accident occurs and also can bring disaster to adjacent cabinet, and then can cause bigger accident.Therefore press for the real equipment operation condition of switch cubicle is carried out in real time and on-line monitoring regularly; Degradation according to equipment running and insulation; Ask and measure when confirming maintenance; To reduce the generation of power off time and accident, improve the safe reliability and the automaticity of Operation of Electric Systems.
The method of traditional monitoring mainly is to monitor the temperature in the Medium Voltage Switchgear through mounting temperature sensor; If might cause equipment heating when discharging because break down in the Medium Voltage Switchgear; But for some disguised faults; Often can not cause equipment heating during generating, therefore adopt this temperature sensor can not well find the fault that some are hidden, so mounting temperature sensor can not play good detection effect.
Summary of the invention
To the deficiency of above-mentioned prior art, the purpose of this invention is to provide a kind of sensor that can play better detection effect to the Medium Voltage Switchgear fault.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of sensor that detects the Medium Voltage Switchgear fault; It comprises the shell of an insulating material; Be provided with the antenna of a detection electromagnetic wave signal in the said shell, the scope of said antenna receiving signal is 300MHz-3000MHz, and the signal wire of said antenna stretches out said shell.
Preferably, said shell is hinged through first rotary handle and a support, and said support is hinged through second rotary handle and a base.
Preferably, said base is provided with magnet.
Preferably, the said signal wire end that stretches out said shell is connected with the N-TYPE connector.
Preferably, the material of said shell is the PE material.Technique scheme has following beneficial effect: can generate electromagnetic waves when generating electricity because Medium Voltage Switchgear breaks down; And electromagnetic frequency range is more than 300MHZ; This sensor is provided with one in the enclosure can receive the antenna of range of signal at 300MHz-3000MHz, works as sensor like this and is installed in the Medium Voltage Switchgear, when discharge fault appears in Medium Voltage Switchgear; The electromagnetic wave of its generation will be passed shell by antenna induction; Antenna sends induced signal, is like this in the decidable middle-high voltage switch fault to have taken place, thereby is convenient to the maintenance of Medium voltage switch or circuit breaker cabinet equipment; Because Medium Voltage Switchgear generally all can produce corresponding electromagnetic wave when breaking down, therefore this sensor is higher to the detection accurate rate of Medium Voltage Switchgear fault.
Description of drawings
Fig. 1 is the front view of the embodiment of the invention.
Fig. 2 is the test pattern of the embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described in detail.
Like Fig. 1, shown in 2, the sensor of this detection Medium Voltage Switchgear fault comprises that the shell 1 of an insulating material, insulating material can select PE material, plastics or other insulating material for use.Be provided with the antenna 2 of a detection electromagnetic wave signal in the shell 1, the scope of antenna receiving signal is 300MHz-3000MHz, and an end of antenna 2 signal wires stretches out shell 1 and is connected with N-TYPE connector 3.Shell 1 is hinged through first rotary handle 5 and a support 4, and support 4 is hinged through second rotary handle 7 and a base 6, and the bottom of base 6 is provided with magnet.First rotary handle, 5 lateral arrangement, second rotary handle 7 is vertically arranged.
This sensor can directly be fixed on Medium voltage switch or circuit breaker cashier's office in a shop through the magnet of base 6 bottoms in use, regulates first rotary handle 5, second rotary handle 7 simultaneously respectively, makes antenna 2 can play better detection effect like this over against detection resources.Because breaking down, Medium Voltage Switchgear can generate electromagnetic waves when generating electricity; And electromagnetic frequency range is more than 300MHZ; Therefore when discharge fault appearred in the Medium voltage switch or circuit breaker cabinet, the electromagnetic wave of its generation will be passed shell 1 by antenna 2 inductions, and antenna 2 sends induced signal; Induced signal sends corresponding electric signal process unit to through signal wire, N-TYPE joint 3; Carry out signal Processing, utilize diagnostic routine analysis shelf depreciation kind and clutter to confirm again, can judge the failure condition and the type of Medium Voltage Switchgear device interior like this.
Because Medium Voltage Switchgear generally all can produce corresponding electromagnetic wave when breaking down, therefore this sensor is higher to the detection accurate rate of Medium Voltage Switchgear fault.This sensor can also be used to monitoring the undesired signal in the environment in the power equipment simultaneously, as around the high-voltage switch gear or the undesired signal around the transformer, like TV; Broadcasting, motor, corona; Mobile phone; Various undesired signals such as radar in the time of the discharge signal of monitoring high-voltage switch gear and transformer, are used to compare signal.
More than a kind of sensor that detects the Medium Voltage Switchgear fault that the embodiment of the invention provided has been carried out detailed introduction; For one of ordinary skill in the art; According to the thought of the embodiment of the invention, the part that on embodiment and range of application, all can change, in sum; This description should not be construed as limitation of the present invention, and all any changes of making according to design philosophy of the present invention are all within protection scope of the present invention.
Claims (5)
1. sensor that detects the Medium Voltage Switchgear fault; It is characterized in that: it comprises the shell of an insulating material; Be provided with the antenna of a detection electromagnetic wave signal in the said shell, the scope of said antenna receiving signal is 300MHz-3000MHz, and the signal wire of said antenna stretches out said shell.
2. the sensor of detection Medium Voltage Switchgear fault according to claim 1 is characterized in that: said shell is hinged through first rotary handle and a support, and said support is hinged through second rotary handle and a base.
3. the sensor of detection Medium Voltage Switchgear fault according to claim 2 is characterized in that: said base is provided with magnet.
4. the sensor of detection Medium Voltage Switchgear fault according to claim 1 is characterized in that: the end that said signal wire stretches out said shell is connected with the N-TYPE connector.
5. the sensor of detection Medium Voltage Switchgear fault according to claim 1 is characterized in that: the material of said shell is the PE material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103037771A CN102364349A (en) | 2011-10-10 | 2011-10-10 | Sensor for detecting faults of medium-voltage switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103037771A CN102364349A (en) | 2011-10-10 | 2011-10-10 | Sensor for detecting faults of medium-voltage switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102364349A true CN102364349A (en) | 2012-02-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103037771A Pending CN102364349A (en) | 2011-10-10 | 2011-10-10 | Sensor for detecting faults of medium-voltage switch cabinet |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104569752A (en) * | 2014-12-27 | 2015-04-29 | 国家电网公司 | System for monitoring partial discharge of power distribution facilities |
| CN110187244A (en) * | 2019-04-30 | 2019-08-30 | 国网山西省电力公司电力科学研究院 | A kind of fault detection means and method for switchgear |
Citations (6)
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| CN201355384Y (en) * | 2009-02-20 | 2009-12-02 | 厦门红相电力设备股份有限公司 | System for detecting and managing partial discharge of switch cabinet on-line |
| CN101612062A (en) * | 2008-06-26 | 2009-12-30 | 北京石油化工学院 | Method for navigating and positioning multi-joint arm mechanical sensing type ultrasonic image |
| CN101927391A (en) * | 2010-08-27 | 2010-12-29 | 大连海事大学 | Method for performing automatic surfacing repair on damaged metal part |
| CN201803970U (en) * | 2010-08-23 | 2011-04-20 | 上海市电力公司超高压输变电公司 | Internal fault detector for switch cabinet |
| CN102053008A (en) * | 2009-11-10 | 2011-05-11 | 深圳市巨烽显示科技有限公司 | Display equipment evaluation system and display equipment evaluation method |
| CN201852904U (en) * | 2010-10-22 | 2011-06-01 | 河南省电力公司平顶山供电公司 | Partial discharge detection device for GIS (gas insulated switchgear) |
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2011
- 2011-10-10 CN CN2011103037771A patent/CN102364349A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101612062A (en) * | 2008-06-26 | 2009-12-30 | 北京石油化工学院 | Method for navigating and positioning multi-joint arm mechanical sensing type ultrasonic image |
| CN201355384Y (en) * | 2009-02-20 | 2009-12-02 | 厦门红相电力设备股份有限公司 | System for detecting and managing partial discharge of switch cabinet on-line |
| CN102053008A (en) * | 2009-11-10 | 2011-05-11 | 深圳市巨烽显示科技有限公司 | Display equipment evaluation system and display equipment evaluation method |
| CN201803970U (en) * | 2010-08-23 | 2011-04-20 | 上海市电力公司超高压输变电公司 | Internal fault detector for switch cabinet |
| CN101927391A (en) * | 2010-08-27 | 2010-12-29 | 大连海事大学 | Method for performing automatic surfacing repair on damaged metal part |
| CN201852904U (en) * | 2010-10-22 | 2011-06-01 | 河南省电力公司平顶山供电公司 | Partial discharge detection device for GIS (gas insulated switchgear) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104569752A (en) * | 2014-12-27 | 2015-04-29 | 国家电网公司 | System for monitoring partial discharge of power distribution facilities |
| CN110187244A (en) * | 2019-04-30 | 2019-08-30 | 国网山西省电力公司电力科学研究院 | A kind of fault detection means and method for switchgear |
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Application publication date: 20120229 |