CN201788223U - High-voltage photoelectric conversion current sensor structure - Google Patents
High-voltage photoelectric conversion current sensor structure Download PDFInfo
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- CN201788223U CN201788223U CN2010201183083U CN201020118308U CN201788223U CN 201788223 U CN201788223 U CN 201788223U CN 2010201183083 U CN2010201183083 U CN 2010201183083U CN 201020118308 U CN201020118308 U CN 201020118308U CN 201788223 U CN201788223 U CN 201788223U
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Abstract
The utility model discloses a high-voltage photoelectric conversion current sensor structure, which belongs to a monitoring device of high-voltage power equipment. The high-voltage photoelectric conversion current sensor structure is characterized in that an insulation body is respectively connected with a photoelectric converter, a conductive body penetrates through a non-magnetic framework coil, a light load coil and an induction power coil, an inner end of the photoelectric converter is connected with an infrared transmitting tube, the infrared transmitting tube is correspondingly provided with an air gap passage and connected with optical fibers, the optical fibers penetrate through the air gas passage to be connected with a wiring terminal, the wiring terminal is connected with an external monitoring unit through a connecting wire, and a radiation power source is mounted at the bottom of the air gap passage and connected with an external power source through an input terminal. The high-voltage photoelectric conversion current sensor structure adopts an infrared light to isolate high voltage, accurately senses current, stops high voltage from being mixed into low voltage, stops short circuit of a communication system and a sensor to ground, realizes high-safety and high-precision sensing of high-potential current, and meets requirements of building digital transformer substations.
Description
Technical field
The utility model relates to the monitoring device of high-voltage power equipment, specifically a kind of structure of high-voltage photoelectric conversion current sensor.
Background technology
Sense current has following several in the existing current transformer 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 mutual inductor 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.
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 the power equipment digitizing of electric system, networked improving constantly of requiring, the computer technology communication technology constantly develops.Therefore, press for high-low pressure and isolate fully, insulation is reliable, safe do not have a potential danger, do not have magnetic saturation, the ferroresonance problem, frequency response is wide, dynamic range is big, the precision height, and volume is little, in light weight, pollution-free, noiseless, high voltage primary current 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 purpose of this utility model is to provide a kind of high pressure that overcomes existing mutual inductor mode sense current existence to scurry into defectives such as low pressure and generation shorted to earth accident.Adopt between high-low pressure light to isolate, do not have conduction between the induction power supply self-energizing, high-pressure side and low pressure end and is connected the structure of infrared light a kind of novel high-voltage photoelectric conversion current sensor of optical fiber transmission high voltage and current digital signal in airtight air gap channel.
The technical scheme that its technical matters that solves the utility model adopts is: a kind of structure of high-voltage photoelectric conversion current sensor, it is characterized in that: the insulating body that is marked with non magnetic shaped framework coil, underloading coil and induction power supply, be connected the non magnetic shaped framework coil of electric conductor break-through, underloading coil and induction power supply coil respectively with photoelectric transformer; 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; 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 insulating material main body, the non magnetic shaped framework coil of injection, and the underloading coil is connected with photoelectric transformer respectively with induction power supply, and current signal and photoelectric transformer working power are provided.
Described non magnetic shaped framework coil is referred to as Luo-coil again.
Product of the present invention can be used for switchgear and the on-line monitoring on overhead transmission line, the power equipment out of doors.
The beneficial effects of the utility model are: adopt infrared light isolated high voltage, accurate sense current, stop high voltage and scurry into low-voltage, communication system and sensor self shorted to earth accident.Realize high safety, high-precision sensing high-potential current, satisfy digital transformer substation and build needs.The present invention is mainly used in switchgear, uses on overhead transmission line, the power equipment out of doors.Realize the protection of high-voltage power device current on-line monitoring, to reducing equipment breakdown.Improve power supply reliability, be convenient to realize equipment state overhauling and digital Construction, have good social benefit.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described.
Fig. 1 is a front view of the present utility model.
Fig. 2 is the right view of the utility model Fig. 1.
Fig. 3 has the infrared receiving tube topology view.
Fig. 4 is the right view of Fig. 3.
1 insulating body among the figure, 2 induction power supplies, 3 underloading coils, 4 Luo-coils, 5 electric conductors, 6 photoelectric transformer, 7 infrared transmitting tubes, 8 air gap channel, 9 optical fiber, 10 connection terminals, 11 input terminals, 12 radiovoltaic generators.
Embodiment
Embodiment 1:
See also Fig. 1 and Fig. 2, be marked with the insulating body 1 of Luo-coil 4, underloading coil 3 and induction power supply 2, be connected with photoelectric transformer 6 respectively, electric conductor 5 break-through Luo-coils, underloading coil and induction power supply coil; Photoelectric transformer is inner to be connected with infrared transmitting tube 7, and infrared transmitting tube is to there being an air gap channel 8, and infrared transmitting tube is connected with optical fiber 9, and optical fiber passes air gap channel and is connected with connection terminal 10, and connection terminal is connected by the monitoring means of connecting line with the outside; Radiovoltaic generator 12 is equipped with in the air gap channel bottom, and radiovoltaic generator is connected with external power source by input terminal 11.
Embodiment 2:
See also Fig. 3 and Fig. 4, be marked with the insulating body 1 of Luo-coil 4, underloading coil 3 and induction power supply 2, be connected with photoelectric transformer 6 respectively, electric conductor 5 break-through Luo-coils, underloading coil and induction power supply coil; Photoelectric transformer is inner to be connected with infrared transmitting tube 7, and infrared transmitting tube is to there being an air gap channel 8, and the other end of air gap channel is provided with infrared receiving tube 13, and the infrared receiving tube other end is connected with signal output wiring terminal 10; Connection terminal is connected by the monitoring means of connecting line with the outside; In the air gap channel bottom radiovoltaic generator 12 is housed, radiovoltaic generator is connected with external power source by input terminal 11.
Claims (1)
1. the structure of a high-voltage photoelectric conversion current sensor, it is characterized in that: the insulating body that is marked with non magnetic shaped framework coil, underloading coil and induction power supply, be connected the non magnetic shaped framework coil of electric conductor break-through, underloading coil and induction power supply coil respectively with photoelectric transformer; 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; In the air gap channel bottom radiovoltaic generator is housed, radiovoltaic generator is connected with external power source by input terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201183083U CN201788223U (en) | 2010-02-24 | 2010-02-24 | High-voltage photoelectric conversion current sensor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201183083U CN201788223U (en) | 2010-02-24 | 2010-02-24 | High-voltage photoelectric conversion current sensor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201788223U true CN201788223U (en) | 2011-04-06 |
Family
ID=43820182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201183083U Expired - Fee Related CN201788223U (en) | 2010-02-24 | 2010-02-24 | High-voltage photoelectric conversion current sensor structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201788223U (en) |
-
2010
- 2010-02-24 CN CN2010201183083U patent/CN201788223U/en not_active Expired - Fee Related
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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: 20110406 Termination date: 20130224 |