CN101782606A - Structure of high-voltage photoelectric conversion voltage sensor - Google Patents
Structure of high-voltage photoelectric conversion voltage sensor Download PDFInfo
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- CN101782606A CN101782606A CN201010113592A CN201010113592A CN101782606A CN 101782606 A CN101782606 A CN 101782606A CN 201010113592 A CN201010113592 A CN 201010113592A CN 201010113592 A CN201010113592 A CN 201010113592A CN 101782606 A CN101782606 A CN 101782606A
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- transmitting tube
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Abstract
The invention discloses a structure of a high-voltage photoelectric conversion voltage sensor, which belongs to monitoring devices of high-voltage electrical power equipment. An insulating main body is connected with a photovoltaic converter; an electric conductor is connected with a low-voltage resistor by penetrating through an induction power supply coil, the other end of the low-voltage resistor is connected with the photovoltaic converter and a high-voltage resistor, and the other end of the high-voltage resistor is connected with a grounding terminal through a grounding lead; the inner end of the photovoltaic converter is connected with an infrared transmitting tube, the infrared transmitting tube is correspondingly provided with an air gap passage, the infrared transmitting tube is connected with an optical fiber, the optical fiber is connected with the grounding terminal by penetrating through the air gap passage, and the grounding terminal is connected with an external monitoring unit through a connecting line; an infrared receiving tube is arranged at the other end of the air gap passage, and the other end of the infrared receiving tube is connected with a signal output grounding terminal; and a radiation power supply is installed at the bottom of the air gap passage, and the radiation power supply is connected with an external power supply through an input terminal. The invention can realize the voltage on-line monitoring and protection of the high-voltage electrical power equipment, reduce equipment accidents, improve the power supply reliability and facilitate the realization of equipment condition-based maintenance and digitized construction.
Description
Technical field
The present invention relates to the monitoring device of high-voltage power equipment, specifically a kind of structure of high-voltage photoelectric conversion voltage sensor.
Background technology
Sensing voltage has following several in the existing voltage transformer (VT) frame mode: electromagnetic type organic insulation mutual inductor, electromagnetic type oil-filled mutual inductor, electromagnetic type inflation mutual inductor, electronic mutual inductor.Many problems such as the tradition electromagnetic transformer exists that volume is big, Heavy Weight, magnetic saturation, ferroresonance and leakage of oil, gas leakage, the aging puncture of organic insulation.
Electronic type voltage transformer exists imperfect earth or ground wire broken string, resistance or capacitance damage etc. to cause that high pressure scurries into low-pressure system with resistance or capacitance partial pressure.Also therefore, this structure and electromagnetic transformer exist between high and low voltage insulation breakdown to bring high pressure to scurry into unsafe problems such as low-voltage system and shorted to earth accident equally.
At present, China proposes to build strong intelligent grid.One of its main contents are promptly built digital transformer substation.Various advanced persons' digitizing novel sensor is developed in requirement.Along with improving constantly of requiring of the power equipment digitizing of electric system, networking, the computer technology communication technology constantly develop.Therefore, press for high-low pressure and isolate fully, insulation is reliable; safe and do not have potential danger, there is not magnetic saturation, the ferroresonance problem; frequency response is wide, and dynamic range is big, the precision height; volume is little; in light weight, pollution-free, noiseless; high voltage primary voltage sensor with digital data transmission, with satisfy digitizing on-line monitoring protection and repair based on condition of component requirement become when affair urgently.
Summary of the invention
In order to overcome the deficiencies in the prior art, the objective of the invention is to provide a kind of and overcome the high pressure that exists with mutual inductor mode sensing voltage and scurry into low pressure and defective such as shorted to earth accident takes place.Adopt light isolation, induction power supply self-energizing between high-low pressure, do not have conduction between high-pressure side and the low pressure end output terminal and is connected, the structure of infrared light a kind of novel high-voltage photoelectric conversion voltage sensor of optical fiber transmission high voltage voltage digital signal in airtight air gap channel.
The technical solution adopted for the present invention to solve the technical problems is: a kind of structure of high-voltage photoelectric conversion voltage sensor is characterized in that: insulating body is connected with photoelectric transformer; Electric conductor passes the induction power supply coil and is connected with low resistance, and the other end of low resistance is connected with high-tension resistive with photoelectric transformer, and the high-tension resistive other end is connected with ground terminal by ground lead; Photoelectric transformer is inner to be connected with infrared transmitting tube, and infrared transmitting tube is to there being an air gap channel, and infrared transmitting tube is connected with optical fiber, and optical fiber passes air gap channel and is connected with connection terminal, and connection terminal is connected by the monitoring means of connecting line with the outside; The other end of air gap channel is provided with infrared receiving tube, and the infrared receiving tube other end is connected with the signal output wiring terminal; In the air gap channel bottom radiovoltaic generator is housed, radiovoltaic generator is connected with external power source by input terminal.
Described insulating body is the main body of insulating material, injects induction power supply, is connected with photoelectric transformer, and the photoelectric transformer working power is provided.
Product of the present invention can be used for switchgear and uses on overhead transmission line, the power equipment out of doors.
The invention has the beneficial effects as follows:, stop high voltage and scurry into low-voltage, communication system and sensor self shorted to earth accident because the present invention adopts infrared light isolated high voltage, accurate sensing voltage.Realize high safety, high-precision sensing high-potential voltage, build needs so can satisfy digital transformer substation.Product of the present invention can be realized the protection of high-voltage power equipment voltage on-line monitoring, to reducing equipment breakdown, improves power supply reliability, is convenient to realize equipment state overhauling and digital Construction, has good social benefit and economic benefit.
Description of drawings
Below in conjunction with drawings and Examples the present invention is further described.
Fig. 1 is a front view of the present invention.
Fig. 2 is the right view of Fig. 1.
Fig. 3 has the infrared receiving tube topology view.
Fig. 4 is the right view of Fig. 3.
Among the figure 1, insulating body, 2, induction power supply, 3 electric conductors, 4 low resistances, 5 photoelectric transformer, 6 high-tension resistives, 7, ground lead, 8 ground terminals, 9 input terminals, 10 radiovoltaic generators, 11 connection terminals, 12 optical fiber, 13 air gap channel, 14 infrared transmitting tubes.
Embodiment
Embodiment 1:
See also Fig. 1 Fig. 2, the structure of the high-voltage photoelectric conversion voltage sensor of embodiment is: insulating body 1 is connected with photoelectric transformer 5; Electric conductor 3 passes induction power supply 2 coils and is connected with low resistance 4, and the other end of low resistance is connected with high-tension resistive 6 with photoelectric transformer, and the high-tension resistive other end is connected with ground terminal 8 by ground lead 7; Photoelectric transformer is inner to be connected with infrared transmitting tube 14, infrared transmitting tube is to there being an air gap channel 13, infrared transmitting tube is connected with optical fiber 12, and optical fiber passes air gap channel and is connected with connection terminal 11, and connection terminal is connected by the monitoring means of connecting line with the outside; Radiovoltaic generator 10 is equipped with in the air gap channel bottom, and radiovoltaic generator is connected with external power source by input terminal 9.
Embodiment 2:
See also Fig. 3 Fig. 4, the structure of the high-voltage photoelectric conversion voltage sensor of embodiment is: insulating body 1 is connected with photoelectric transformer 5; Electric conductor 3 passes induction power supply 2 coils and is connected with low resistance 4, and the other end of low resistance is connected with high-tension resistive 6 with photoelectric transformer, and the high-tension resistive other end is connected with ground terminal 8 by ground lead 7; Photoelectric transformer is inner to be connected with infrared transmitting tube 14, and infrared transmitting tube is to there being an air gap channel 13, and the other end of air gap channel is provided with infrared receiving tube 15, and the infrared receiving tube other end is connected with signal output wiring terminal 11; Connection terminal is connected by the monitoring means of connecting line with the outside, in the air gap channel bottom radiovoltaic generator 10 is housed, and radiovoltaic generator is connected with external power source by input terminal 9.
Claims (2)
1. the structure of a high-voltage photoelectric conversion voltage sensor, it is characterized in that: insulating body is connected with photoelectric transformer; Electric conductor passes the induction power supply coil and is connected with low resistance, and the other end of low resistance is connected with high-tension resistive with photoelectric transformer, and the high-tension resistive other end is connected with ground terminal by ground lead; Photoelectric transformer is inner to be connected with infrared transmitting tube, and infrared transmitting tube is to there being an air gap channel, and infrared transmitting tube is connected with optical fiber, and optical fiber passes air gap channel and is connected with connection terminal, and connection terminal is connected by the monitoring means of connecting line with the outside; The other end of air gap channel is provided with infrared receiving tube, and the infrared receiving tube other end is connected with the signal output wiring terminal; In the 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 photoelectric conversion voltage sensor according to claim 1, it is characterized in that: described insulating body is the main body of insulating material, injects induction power supply, is connected with photoelectric transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010113592A CN101782606A (en) | 2010-02-24 | 2010-02-24 | Structure of high-voltage photoelectric conversion voltage sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010113592A CN101782606A (en) | 2010-02-24 | 2010-02-24 | Structure of high-voltage photoelectric conversion voltage sensor |
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| CN101782606A true CN101782606A (en) | 2010-07-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201010113592A Pending CN101782606A (en) | 2010-02-24 | 2010-02-24 | Structure of high-voltage photoelectric conversion voltage sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103575325A (en) * | 2012-07-20 | 2014-02-12 | 陈津 | High-voltage photoelectric temperature, current and voltage compound sensor structure |
-
2010
- 2010-02-24 CN CN201010113592A patent/CN101782606A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103575325A (en) * | 2012-07-20 | 2014-02-12 | 陈津 | High-voltage photoelectric temperature, current and voltage compound sensor structure |
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Addressee: Chen Jin Document name: Decision of Rejection |
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Application publication date: 20100721 |