CN103575325A - High-voltage photoelectric temperature, current and voltage compound sensor structure - Google Patents
High-voltage photoelectric temperature, current and voltage compound sensor structure Download PDFInfo
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- CN103575325A CN103575325A CN201210258662.XA CN201210258662A CN103575325A CN 103575325 A CN103575325 A CN 103575325A CN 201210258662 A CN201210258662 A CN 201210258662A CN 103575325 A CN103575325 A CN 103575325A
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Abstract
The invention discloses a high-voltage photoelectric temperature, current and voltage compound sensor structure and belongs to on-line monitoring devices for high-voltage electrical equipment. A non-magnetic framework coil, a light-load coil and an induction power supply coil are connected with a photoelectric converter on an insulating lantern ring body, wherein the non-magnetic framework coil, the light-load coil and the induction power supply coil are arranged in the insulating lantern ring body; an electric conductor of the insulating lantern ring body penetrates through the non-magnetic framework coil, the light-load coil and the induction power supply coil to be connected with a low-voltage resistor, the low-voltage resistor is connected with the photoelectric converter and a high-voltage resistor, and the high-voltage resistor is connected with an earth terminal; a thermal detector making contact with an external detection part is connected to the photoelectric converter; the photoelectric converter is connected with an infrared transmitting tube, the infrared transmitting tube is connected with an optical fiber, and an optical fiber plug is connected with an external detection unit; a radiation power supply is connected with an external power supply through an input terminal. According to the high-voltage photoelectric temperature, current and voltage compound sensor structure, high voltage is isolated through infrared light, temperature, current and voltage can be accurately sensed, and the accident that the high voltage is merged into a low-voltage communication system and the to-earth short-circuit accident of the sensor are eliminated; high-potential temperature signals, high-potential current signals and high-potential voltage signals can be safely and reliably sensed, and accurate diagnosis and treatment are facilitated.
Description
Technical field
The present invention relates to the on-Line Monitor Device of high-voltage power equipment, specifically a kind of structure of high voltage photo-electric temperature current voltage compound sensor.
Background technology
In existing current-voltage transformer frame mode, sense current voltage has following several: electromagnetic type organic insulation mutual inductor, electromagnetic type oil-filled mutual inductor, electromagnetic type inflation mutual inductor, electronic mutual inductor.Tradition electromagnetic transformer exists that volume is large, Heavy Weight, magnetic saturation, ferroresonance and leakage of oil, gas leakage, organic insulation are aging many problems such as punctures.Electronic mutual inductor and electromagnetic transformer exist insulation breakdown between high-low voltage to bring high voltage to scurry into the unsafe problems such as low-voltage system and shorted to earth accident equally.
The electric contact state of power equipment conduction junction, splicing position is bad is the major reason that causes this place's excess Temperature, even also can surpass maximum permissible temperature under normal current.The position that switchgear often breaks down is contact and line end cable junction.These equipment mostly are enclosed construction, during operation, can not open block infrared radiation door or cover plate carry out infrared detection; Some outdoor equipment inconvenience detects, and detected temperatures is inaccurate.
For current withdrawing switch apparatus on-line temperature monitoring, have the infrared radiation detection apparatus of employing non-contacting sensor, because it is subject to humidity in cabinet, temperature, air pressure, filth, light and infrared source and strong-electromagnetic field, disturb, measuring error is very large.Can only measure again the infrared position that can look at straight, have little significance.And the temperature sensor of contact directly and measurement point contact position at high voltage end, the monitoring means of Check processing is in low-pressure system.In order to prevent that high voltage from scurrying into low-voltage system, have at present the optical fiber direct of employing to be connected in air to connect, by infrared light three kinds of mode isolated high voltage such as signal transmission and wireless electromagnetic transmitting and transmission temperature signal in air simply.Because they are subject to environment filth, electro-conductive dust, humidity or the interference of electromagnetic field etc., affect, bring new hidden danger.GIS does not also have safe and reliable on-line temperature monitoring product at present.
The electric current of power equipment, voltage monitoring be the more important thing is safeguard protection except measuring.Yet the deteriorated rule of power equipment is just towards multifactor (comprising electricity, heat, machinery, optics, environment etc.) aging future development.At present power equipment detects and has broken through traditional measurement parameter and searched out the deteriorated rule parameter of new sign as temperature etc.18 great anti-accident measures of electrical network of State Grid Corporation of China (2012 editions) regulation strengthen carrying out switch cabinet temperature detection, and switch cubicle intensively monitoring, analysis and processing to temperature anomaly, prevent the cabinet internal short-circuit fault that overheat of conducting circuit causes.Along with the needs that national intelligent grid is built, temperature is combined with current/voltage and forms compound sensor, safe and reliable temperature, electric current, voltage monitoring data are provided simultaneously, contribute to health status diagnosis and the maintenance of power equipment.
Summary of the invention
In order to overcome the deficiencies in the prior art, the object of the invention is to provide a kind of and have under high-voltage state, adopt photo-electric temperature current voltage compound sensor to realize the device of on-line monitoring.
The technical solution adopted for the present invention to solve the technical problems is: a kind of structure of high voltage photo-electric temperature current voltage compound sensor, it is characterized in that: having a front end is circular insulation collar main body, insulation collar body interior is marked with non magnetic shaped framework coil, underloading coil and induction power supply coil, and non magnetic shaped framework coil, underloading coil and induction power supply coil are connected with the photoelectric transformer in insulation collar main body respectively; Insulation collar main body circular central is provided with electric conductor, electric conductor is connected with low resistance with induction power supply coil through non magnetic shaped framework coil, underloading coil, the low resistance other end is connected with high-tension resistive with photoelectric transformer, and the high-tension resistive other end is connected with ground terminal; In photoelectric transformer, be connected with thermal detector, the thermal detector other end and external detection position are touched; Photoelectric transformer is inner to be connected with infrared transmitting tube, infrared transmitting tube is to there being an air gap channel, infrared transmitting tube is connected with optical fiber, and optical fiber is connected with fiber-optical socket through air gap channel, and fiber-optical socket is connected with outside monitoring means by the Optical fiber plug with optical fiber; In air gap channel bottom, radiovoltaic generator is housed, radiovoltaic generator is connected with external power source by input terminal.
The optical fiber that described infrared transmitting tube connects can not adopt penetrating air gap channel perforation and directly be embedded in insulation collar main body, is connected on outside monitoring means.
Described insulation collar main body axially has perpendicular with infrared light transmission direction and parallels two kinds of patterns at it.
Temperature, electric current in high voltage photo-electric temperature current voltage compound sensor of the present invention, voltage three structure can combination in any.
In the present invention, arrangement of temperature sensor includes insulation collar main body, induction power supply coil, photoelectric transformer, infrared transmitting tube, air gap channel, optical fiber, fiber-optical socket, thermal detector; Current sensor structure includes insulation collar main body, induction power supply coil, underloading coil, non magnetic shaped framework coil, photoelectric transformer, infrared transmitting tube, air gap channel, optical fiber, fiber-optical socket, input terminal, radiovoltaic generator; Voltage sensor structure includes insulation collar main body, induction power supply coil, electric conductor, photoelectric transformer, infrared transmitting tube, air gap channel, optical fiber, fiber-optical socket, input terminal, ground connection, radiovoltaic generator, high-tension resistive, low resistance.
The present invention can be arranged on the handcart of withdrawing switch apparatus, is applicable to new equipment installation and is more convenient for using in fortune scrap build.It can also be arranged on the power equipment such as switch, transformer of GIS high pressure gas insulation metal sealing switch equipment, overhead transmission line.It is a modular structure, uses safety, reliable, convenient.
The invention has the beneficial effects as follows: because the present invention adopts infrared light isolated high voltage, accurate sensing temperature, electric current, voltage, stop high voltage and scurry into low-voltage, communication system and sensor self shorted to earth accident.Realize temperature, electric current, the voltage signal at high safety, the same position of highly reliable sensing noble potential, the accurate rash of being more convenient for is broken and is processed.Realize the protection of high-voltage power equipment on-line monitoring, reduce equipment breakdown, improve power supply reliability, be convenient to realize equipment state overhauling and Centralized Monitoring, there is good social benefit.The present invention is creatively combined into a sensor temperature sensor and current sensor, voltage sensor three, and three shares same induction power supply coil, shares same optical fiber, dwindles sensor bulk.So not only save installing space, be conducive to dwindle power equipment volume and realize miniaturization change, and can simplify installation, lead-in wire and wiring.Can reduce sensor manufacturing cost and reduce total cost, realize good and cheap simultaneously.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is conducted further description.
Fig. 1 be insulation sleeve annulate shaft of the present invention to the perpendicular topology view of infrared light transmission direction.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is that insulation collar body shaft of the present invention is to paralleling topology view with infrared light transmission direction.
Fig. 4 is the right view of Fig. 3.
In figure 1, insulation collar main body, 2, induction power supply coil, 3, underloading coil, 4, non magnetic shaped framework coil, 5, electric conductor, 6, photoelectric transformer, 7, infrared transmitting tube, 8, air gap channel, 9, optical fiber, 10, fiber-optical socket, 11, input terminal, 12, ground terminal, 13, radiovoltaic generator, 14, high-tension resistive, 15, low resistance, 16, thermal detector.
Embodiment
Embodiment 1:
Having a front end is circular insulation collar main body 1, insulation collar body interior is marked with non magnetic shaped framework coil 4, underloading coil 3 and induction power supply coil 2, and non magnetic shaped framework coil, underloading coil and induction power supply coil are connected with the photoelectric transformer 6 in insulation collar main body respectively; Collar main body circular central is provided with electric conductor 5, electric conductor is connected with low resistance 15 with induction power supply coil through non magnetic shaped framework coil, underloading coil, the low resistance other end is connected with high-tension resistive 14 with photoelectric transformer, and the high-tension resistive other end is connected with ground terminal 12; In photoelectric transformer, be connected with thermal detector 16, detected temperatures is touched at the thermal detector other end and external detection position; Photoelectric transformer is inner to be connected with infrared transmitting tube 7, infrared transmitting tube is to there being an air gap channel 8, infrared transmitting tube is connected with optical fiber 9, and optical fiber is connected with fiber-optical socket 10 through air gap channel, and fiber-optical socket is connected enforcement monitoring by the Optical fiber plug with optical fiber with outside monitoring means; In air gap channel bottom, radiovoltaic generator 13 is housed, radiovoltaic generator is connected with external power source and is implemented power supply by input terminal 11.
Claims (4)
1. the structure of a high voltage photo-electric temperature current voltage compound sensor, it is characterized in that: having a front end is circular insulation collar main body, insulation collar body interior is marked with non magnetic shaped framework coil, underloading coil and induction power supply coil, and non magnetic shaped framework coil, underloading coil and induction power supply coil are connected with the photoelectric transformer in insulation collar main body respectively; Insulation collar main body circular central is provided with electric conductor, electric conductor is connected with low resistance with induction power supply coil through non magnetic shaped framework coil, underloading coil, the low resistance other end is connected with high-tension resistive with photoelectric transformer, and the high-tension resistive other end is connected with ground terminal; In photoelectric transformer, be connected with thermal detector, the thermal detector other end and external detection position are touched; Photoelectric transformer is inner to be connected with infrared transmitting tube, infrared transmitting tube is to there being an air gap channel, infrared transmitting tube is connected with optical fiber, and optical fiber is connected with fiber-optical socket through air gap channel, and fiber-optical socket is connected with outside monitoring means by the Optical fiber plug with optical fiber; In air gap channel bottom, radiovoltaic generator is housed, radiovoltaic generator is connected with external power source by input terminal.
2. the structure of a kind of high voltage photo-electric temperature current voltage compound sensor according to claim 1, it is characterized in that: the optical fiber that described infrared transmitting tube connects can not adopt penetrating air gap channel perforation and directly be embedded in insulation collar main body, is connected on outside monitoring means.
3. the structure of a kind of high voltage photo-electric temperature current voltage compound sensor according to claim 1, is characterized in that: described insulation collar main body axially has perpendicular with infrared light transmission direction and parallels two kinds at it.
4. the structure of a kind of high voltage photo-electric temperature current voltage compound sensor according to claim 1, is characterized in that: temperature, the electric current in described high voltage photo-electric temperature current voltage compound sensor, voltage three structure can combination in any.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210258662.XA CN103575325A (en) | 2012-07-20 | 2012-07-20 | High-voltage photoelectric temperature, current and voltage compound sensor structure |
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| CN201210258662.XA CN103575325A (en) | 2012-07-20 | 2012-07-20 | High-voltage photoelectric temperature, current and voltage compound sensor structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106601457A (en) * | 2017-01-24 | 2017-04-26 | 北京合锐赛尔电力科技股份有限公司 | Current transformer with temperature measuring device |
| CN107727968A (en) * | 2017-10-20 | 2018-02-23 | 珠海多监测科技有限公司 | A kind of dry-type transformer condition monitoring device |
| WO2020102973A1 (en) * | 2018-11-20 | 2020-05-28 | Abb Schweiz Ag | Apparatus for monitoring temperature and voltage of cable joint of cable connected to gas insulated switchgear, and associated manufacturing method |
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| CN202305039U (en) * | 2011-10-25 | 2012-07-04 | 陈津 | High voltage temperature on-line monitoring wireless emission fixation and encapsulation pole structure |
| CN203163768U (en) * | 2012-07-20 | 2013-08-28 | 陈津 | Structure of high voltage photoelectric temperature current and voltage complex sensor |
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Patent Citations (7)
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| US20010036242A1 (en) * | 1998-08-25 | 2001-11-01 | Kabushiki Kaisha Toshiba | In-core fixed nuclear instrumentation system and power distribution monitoring system |
| CN101226080A (en) * | 2008-02-04 | 2008-07-23 | 陈津 | High pressure temperature on-line monitoring photoelectricity inversion thimble structure |
| CN101672697A (en) * | 2009-10-13 | 2010-03-17 | 陈津 | Structure for high-voltage on-line temperature monitoring of photo-electric conversion embedded pole |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106601457A (en) * | 2017-01-24 | 2017-04-26 | 北京合锐赛尔电力科技股份有限公司 | Current transformer with temperature measuring device |
| CN107727968A (en) * | 2017-10-20 | 2018-02-23 | 珠海多监测科技有限公司 | A kind of dry-type transformer condition monitoring device |
| WO2020102973A1 (en) * | 2018-11-20 | 2020-05-28 | Abb Schweiz Ag | Apparatus for monitoring temperature and voltage of cable joint of cable connected to gas insulated switchgear, and associated manufacturing method |
| CN112449677A (en) * | 2018-11-20 | 2021-03-05 | Abb瑞士股份有限公司 | Device for monitoring the temperature and voltage of a cable joint of a cable connected to a gas-insulated switchgear and associated manufacturing method |
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Application publication date: 20140212 |