CN103529309A - Ultrahigh-frequency sensor based on high-voltage shunt reactor - Google Patents
Ultrahigh-frequency sensor based on high-voltage shunt reactor Download PDFInfo
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- CN103529309A CN103529309A CN201310494402.7A CN201310494402A CN103529309A CN 103529309 A CN103529309 A CN 103529309A CN 201310494402 A CN201310494402 A CN 201310494402A CN 103529309 A CN103529309 A CN 103529309A
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Abstract
The invention discloses an ultrahigh-frequency sensor based on a high-voltage shunt reactor. Both ends of a metal housing of the ultrahigh-frequency sensor are respectively connected with a metal cover plate and an epoxy resin board, so that a closed cavity is formed, a shield plate divides the cavity into two closed spaces, a bracket is arranged on the inner wall of the metal housing of the lower space, an amplifier board is mounted on the bracket, an antenna board is mounted on the inner surface of the epoxy resin board, an aviation plug and N type connector is arranged on the wall of the metal housing of the upper space, and the antenna board, the amplifier board and the aviation plug and N type connector are sequentially connected in series through wires; and the lower end of the metal housing is fixedly connected with an annular plate. The ultrahigh-frequency sensor has a good effect of shielding outside electromagnetic signals, can ensure that the amplifier board and the antenna board in the housing can more accurately receive the electromagnetic waves generated by local discharge in the high-voltage shunt reactor, and is convenient to mount; and the ultrahigh-frequency sensor has strong anti-interference capability, great signal bandwidth, a wide dynamic range and high sensitivity.
Description
technical field:
The present invention relates to a kind of power sensor, particularly relate to a kind of superfrequency sensor based on high-voltage shunt reactor.
background technology:
High-voltage shunt reactor is one of visual plant of 500kV transformer station, the safe operation of its reliability effect electrical network.Operating experience shows, high-voltage shunt reactor problem be take insulativity fault as main.As: phylogenetic several the 500kV reactor events of burning of 2005～2010 Nian Guowang companies are the insulativity fault that internal discharge causes.
High-voltage shunt reactor is mainly oil/paper insulation structure, and its insulation moves for a long time under high voltage, strong electric field environment, very responsive to shelf depreciation.Shelf depreciation is the reason of insulation degradation, is again tendency and the form of expression of insulation degradation.Therefore, Partial Discharge Detecting Technology becomes the most effectively monitoring method of current oil/paper insulation Performance Detection.But because high voltage reactor is without low pressure winding, testing equipment cannot obtain required trial voltage by low pressure winding, cause equipment to dispatch from the factory and cannot carry out partial discharge test with scene.The superfrequency sensor also not detecting for high-voltage shunt reactor in the market.
summary of the invention:
Technical matters to be solved by this invention is: overcome the deficiencies in the prior art, provide a kind of reasonable in design, antijamming capability is strong, the highly sensitive and easy-disassembling-assembling superfrequency sensor based on high-voltage shunt reactor.
Technical scheme of the present invention is: a kind of superfrequency sensor based on high-voltage shunt reactor, contain metal shell and barricade, described metal shell is tubular, its upper end is connected with metal cover board, lower end is connected with epoxy resin board, form the cavity of a sealing, the middle part of described cavity is provided with described barricade, described barricade is divided into described cavity in the space of two sealings, on the inwall of the described metal shell between described barricade and epoxy resin board, be provided with fixed mount, on described fixed mount, amplification board is installed, on the inside surface of described epoxy resin board, antenna plate is installed, on described metal shell body wall between described metal cover board and barricade, be provided with aviation plug and N-type head, described antenna plate, amplification board and described aviation plug and N-type head are contacted successively by wire, described metal shell lower end is fixedly connected with a Circular Plate, in described Circular Plate, is evenly equipped with bolt hole.
Bolt hole in described Circular Plate is corresponding with the bolt hole of the manhole door surrounding of high-voltage shunt reactor.Described barricade is bolted on an annular fixed head, the outer ring surface of this annular fixed head and the fixed seal connection of described metal shell inwall.The band bandwidth of superfrequency sensor is 0.5～1.5GHz.The shape of described antenna plate and amplification board is rectangle; Described antenna plate and amplification board are fixing with described epoxy resin board and fixed mount bonding respectively by anaerobic adhesive; The center of described antenna plate and the center superposition of described epoxy resin board; Described Circular Plate is made by metal material.
The invention has the beneficial effects as follows:
1, the present invention has good external electromagnetic signal shielding effect, can allow amplification board and antenna plate in housing receive more accurately the electromagnetic wave that the inner shelf depreciation of high-voltage shunt reactor produces, easy for installation; Its antijamming capability is strong, signal bandwidth is wide, dynamic range is large, highly sensitive.
2, the xsect of housing of the present invention and the corresponding cooperation of the manhole door of high-voltage shunt reactor, install by fastener, do not destroy original structure, and cost is lower.
3, antenna plate of the present invention is close to the installation of epoxy resin board inner side, and steadiness is good, and in addition, barricade is divided into housing inner chamber in the space of two sealings, and shield effectiveness is good.
4, in housing of the present invention, be provided with Circular Plate, barricade is bolted in this Circular Plate, easy accessibility, and good sealing effect.
5, the present invention is reasonable in design, antijamming capability is strong, highly sensitive and be easy to dismounting, be easy to promotion and implementation, there is good economic benefit.
accompanying drawing explanation:
Fig. 1 is the structural representation of the superfrequency sensor based on high-voltage shunt reactor;
Fig. 2 is the side view of the superfrequency sensor based on high-voltage shunt reactor shown in Fig. 1.
embodiment:
Embodiment: referring to Fig. 1 and Fig. 2, in figure, 1-metal cover board; 2-bolt; 3-barricade; 4-amplification board; 5-antenna plate; 6-epoxy resin board; 7-aviation plug and N-type head; The flange of 8-high-voltage shunt reactor manhole door; 9-metal shell, 10-Circular Plate.
Superfrequency sensor based on high-voltage shunt reactor contains metal shell 9 and barricade 3, wherein: metal shell 9 is tubular, its upper end is connected with metal cover board 1, lower end is connected with epoxy resin board 6, form the cavity of a sealing, the middle part of cavity is provided with barricade 3, barricade 3 is divided into cavity in the space of two sealings, on the inwall of the metal shell 9 between barricade 3 and epoxy resin board 6, be provided with fixed mount, amplification board 4 is installed on fixed mount, antenna plate 5 is installed on the inside surface of epoxy resin board 6, on metal shell 9 body walls between metal cover board 1 and barricade 3, be provided with aviation plug and N-type 7, antenna plate 5, amplification board 4 and aviation plug and N-type 7 contacted successively by wire, metal shell 9 lower ends are fixedly connected with the inner ring surface of a Circular Plate 10, in Circular Plate 10, are evenly equipped with bolt hole.
Bolt hole in Circular Plate 10 is corresponding with the bolt hole of the manhole door surrounding of high-voltage shunt reactor 8.Barricade 3 is bolted on an annular fixed head, the outer ring surface of this annular fixed head and metal shell 9 inwall fixed seal connections.Antenna plate 5 and amplification board 4 are rectangle.Antenna plate 5 and amplification board 4 are fixing with epoxy resin board 6 and fixed mount bonding respectively by anaerobic adhesive; The center superposition of the center of antenna plate 5 and epoxy resin board 4; Circular Plate 10 is made by metal material.
During work, metal shell 9 is placed on to the manhole door place of high-voltage shunt reactor 8, be bolted, aviation plug and N-type 7 and outer monitoring equipment connection, barricade 3 falls external electromagnetic signal shielding, amplification board 4 and antenna plate 5 receive the electromagnetic wave that the inner shelf depreciation of high-voltage shunt reactor 8 produces more accurately, and be sent on outer monitoring equipment, for the inner shelf depreciation situation of Real-Time Monitoring high-voltage shunt reactor 8, its antijamming capability is strong, signal bandwidth is wide, dynamic range is large, highly sensitive.Band bandwidth is 0.5～1.5GHz.
Above embodiment is only the preferred embodiments of the present invention; the invention is not restricted to above-described embodiment; for persons skilled in the art, any apparent change of under the prerequisite that does not deviate from the principle of the invention, it being done, all belongs to protection scope of the present invention.
Claims (5)
1. the superfrequency sensor based on high-voltage shunt reactor, contain metal shell and barricade, it is characterized in that: described metal shell is tubular, its upper end is connected with metal cover board, lower end is connected with epoxy resin board, form the cavity of a sealing, the middle part of described cavity is provided with described barricade, described barricade is divided into described cavity in the space of two sealings, on the inwall of the described metal shell between described barricade and epoxy resin board, be provided with fixed mount, on described fixed mount, amplification board is installed, on the inside surface of described epoxy resin board, antenna plate is installed, on described metal shell body wall between described metal cover board and barricade, be provided with aviation plug and N-type head, described antenna plate, amplification board and described aviation plug and N-type head are contacted successively by wire, described metal shell lower end is fixedly connected with a Circular Plate, in described Circular Plate, is evenly equipped with bolt hole.
2. the superfrequency sensor based on high-voltage shunt reactor according to claim 1, is characterized in that: the bolt hole in described Circular Plate is corresponding with the bolt hole of the manhole door surrounding of high-voltage shunt reactor.
3. the superfrequency sensor based on high-voltage shunt reactor according to claim 1, it is characterized in that: described barricade is bolted on an annular fixed head outer ring surface of this annular fixed head and the fixed seal connection of described metal shell inwall.
4. the superfrequency sensor based on high-voltage shunt reactor according to claim 1, is characterized in that: the band bandwidth of superfrequency sensor is 0.5～1.5GHz.
5. according to the superfrequency sensor based on high-voltage shunt reactor described in claim 1 or 2 or 3 or 4, it is characterized in that: the shape of described antenna plate and amplification board is rectangle; Described antenna plate and amplification board are fixing with described epoxy resin board and fixed mount bonding respectively by anaerobic adhesive; The center of described antenna plate and the center superposition of described epoxy resin board; Described Circular Plate is made by metal material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310494402.7A CN103529309B (en) | 2013-10-21 | 2013-10-21 | Based on the superfrequency sensor of high-voltage shunt reactor |
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| CN201310494402.7A CN103529309B (en) | 2013-10-21 | 2013-10-21 | Based on the superfrequency sensor of high-voltage shunt reactor |
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| CN103529309A true CN103529309A (en) | 2014-01-22 |
| CN103529309B CN103529309B (en) | 2015-09-16 |
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2013
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| CN103529309B (en) | 2015-09-16 |
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Inventor after: Li Yingwen Inventor after: Zhang Hongji Inventor after: Niu Tianye Inventor after: Liu Yalin Inventor after: Wang Min Inventor after: Chen Chao Inventor after: Gan Hongqing Inventor after: Lan Qi Inventor after: Yao Meng Inventor after: Jiang Guoqing Inventor after: Li Zhao Inventor after: Xu Dongsheng Inventor after: Li Lu Inventor after: Wu Wangyang Inventor after: Li Xiandong Inventor after: Lu Yong Inventor after: Zhang Qingjun Inventor before: Jiang Guoqing Inventor before: Niu Tianye Inventor before: Liu Yalin Inventor before: Wang Min Inventor before: Chen Chao Inventor before: Gan Hongqing Inventor before: Lan Qi Inventor before: Yao Meng Inventor before: Li Zhao Inventor before: Xu Dongsheng Inventor before: Li Lu Inventor before: Wu Wangyang Inventor before: Li Xiandong Inventor before: Lu Yong Inventor before: Zhang Qingjun Inventor before: Zhang Hongji |
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Address after: 100033 West Chang'an Avenue, Beijing, No. 86, No. Co-patentee after: MAINTENANCE COMPANY OF STATE GRID HENAN ELECTRIC POWER COMPANY Patentee after: State Grid Corporation of China Address before: 100033 West Chang'an Avenue, Beijing, No. 86, No. Co-patentee before: Overhauling company of Henan Electric Power Company Patentee before: State Grid Corporation of China |
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