CN202583400U - Partial discharge detection device of air insulation metal enclosed switch device and insulator - Google Patents
Partial discharge detection device of air insulation metal enclosed switch device and insulator Download PDFInfo
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- CN202583400U CN202583400U CN 201220229532 CN201220229532U CN202583400U CN 202583400 U CN202583400 U CN 202583400U CN 201220229532 CN201220229532 CN 201220229532 CN 201220229532 U CN201220229532 U CN 201220229532U CN 202583400 U CN202583400 U CN 202583400U
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Abstract
The utility model discloses a partial discharge detection device of an air insulation metal enclosed switch device and an insulator. The partial discharge detection device of the air insulation metal enclosed switch device is connected with the insulator, the insulator comprises an insulation portion, conductor inserts and a metal ring, the partial discharge detection device comprises partial discharge detection antennas, signal leading-out portions and a signal processing unit, wherein the partial discharge detection antennas are embedded in the insulation portion, the signal leading-out portions are connected with the partial discharge detection antennas and lead signals detected by the partial discharge detection antennas to the signal processing unit, and the partial discharge detection antennas are in a spiral spring structure. The partial discharge detection device of the air insulation metal enclosed switch device and the insulator are advantaged in that an opening on a casing is avoided; device modules and sealing steps can be reduced; reliability of the device is improved; cost is reduced; products are made to be more attractive and compact; the spiral spring structure exerts few influences on strength of an insulation material body and insulation performance, can be bent, deformed and easily kept in an original shape, is convenient to be processed and has a small flow resistance to the insulation material body in a molding process; and the spiral spring antennas have great detection signals.
Description
Technical field
The utility model relates to a kind of Cubicle Gas-Insulated Switchgear office and puts pick-up unit and insulator.
Background technology
In Cubicle Gas-Insulated Switchgear, when having inherent vice such as metallic foreign body, because insulation effect is undesirable; So there is the situation of shelf depreciation; This reduces insulating element serviceable life greatly, might cause the damage of equipment, thereby accidents caused.Therefore, switching devices is carried out office and is put detection, trouble-saving generation in early days.
In the existing Cubicle Gas-Insulated Switchgear, the mode that adopts built-in aerial insulation to draw is usually carried out office and is put detection.For example:
In document CN95304213.3, disclose a kind of office and put pick-up unit; It has an annular gap antenna formula sensor; This sensor has smooth outline, can be contained in the flange seat on the metal shell of gas-insulated metal-enclosed high-tension apparatus, and this sensor and metal shell electrical isolation.
In document CN97182201.8, disclose a kind of office and put pick-up unit; Be included in the signal receiving antenna that is provided with in the metal shell; The co-axial seal terminal that passes through that is connected with this signal receiving antenna electrically is drawn out to the outside concentric cable of metal shell, and the determinator that is connected with this concentric cable.Wherein, be installed on the opening flange of housing the receiving antenna electrical isolation.
Because being installed, built-in aerial puts detecting sensor as office in Cubicle Gas-Insulated Switchgear; Need on metal shell, to have increased opening and mounting flange, therefore extra installation and the sealing part of having increased reduced equipment dependability; Simultaneously also increased cost, influenced attractive in appearance.
The utility model content
The utility model provides Cubicle Gas-Insulated Switchgear office to put pick-up unit and insulator, and it has overcome in the background technology Cubicle Gas-Insulated Switchgear office and has put the existing deficiency of pick-up unit.
The utility model solves one of technical scheme that is adopted of its technical matters:
Pick-up unit is put in Cubicle Gas-Insulated Switchgear office; It connects insulator; Said insulator comprises an insulation division (10), at least one conductor inserts (30) and a becket (20) around insulation division (10), and said office puts pick-up unit and comprises that detection antenna (40) is put at least one office, at least one signal extension (50) and is positioned at the outer signal processing unit of insulator; Said office puts detection antenna (40) and is embedded in insulation division (10), and said signal extension (50) connection office puts and detects antenna (40) and signal processing unit, and said office puts and detects antenna (40) spring-like in the shape of a spiral.
Among one preferred embodiment: the through hole (21) that said becket (20) runs through inside and outside establishing, said signal extension (50) pass through hole (21) and detection antenna (40) is put in signal connection office.
Among one preferred embodiment: said insulation division (10) is employed in the becket (20), conductor inserts (30), office are put and detected antenna (40) and the outer cast making of signal extension (50) moulding.
Among one preferred embodiment: the center line that the coil spring shape that detects antenna (40) is put in said office is the camber line around becket (20) axis.
Among one preferred embodiment: said becket (20), conductor inserts (30) drawn game are put and are detected antenna (40) insulation layout.
Among one preferred embodiment: said signal extension (50) comprises a joint (51) and a terminal screw (52), and said joint (51) signal connection office puts and detects antenna (40) and have a screw hole, and the opening of said screw hole outwardly; Said terminal screw (52) is screwed onto in the screw hole of joint (51) to pass the through hole contact outward toward in.
Among one preferred embodiment: the outer sheathed insulated part of said terminal screw (52), with insulation joint screw (52) and becket (20).
Among one preferred embodiment: said conductor inserts (30) drawn game is put detection antenna numbers such as (40) and all is a plurality of; A plurality of offices put and detect the axis annular array layout of antenna (40) along becket (20), and a plurality of conductor inserts (30) are arranged along becket (20) axis annular array.
Among one preferred embodiment: it is radially corresponding one by one that detection antenna (40) is put in said a plurality of conductor inserts (30) and a plurality of office.
Among one preferred embodiment: said a plurality of conductor inserts (30) and a plurality of office put and detect the staggered correspondence of antenna (40).
Among one preferred embodiment: said insulator is installed in the housing (60), and it is r1 that the least radius around the insulator axis that detects antenna (40) is put in said office, and maximum gauge is r2; The radius around the insulator axis of said shell (60) inwall is r; Said r1 < r < r2.
Two of the technical scheme that is adopted of its technical matters of the utility model solution is:
The insulator that detects antenna is put in band office; It comprises an insulation division (10), at least one conductor inserts (30) and a becket (20) around insulation division (10); It comprises also that at least one office puts and detects antenna (40) and at least one signal extension (50); Said office puts detection antenna (40) and is embedded in insulation division (10), and said signal extension (50) connection office puts and detects antenna (40), and said office puts and detects antenna (40) spring-like in the shape of a spiral.
The present technique scheme is compared with background technology, and it has following advantage:
1, office puts the detection antenna and is integrated in barrier insulation inside; Office puts the detection antenna and is arranged to coil spring shape; It can overcome the existing deficiency of background technology and produce following advantage: a, avoids reducing EM equipment module and sealing part in housing upper shed (being used to fix up an aerial wire), improves equipment dependability; Reduce cost, make product more attractive in appearance, compact; B, need not equipment is changed greatly, can acquisition office put measuring ability; C, coil spring shape are less to the influence of the intensity of insulating material body, insulating property, can flexural deformation be easy to keep shape, and be easy to process, and little to the resistance to flow of insulating material body in forming process; The antenna detection signal of d, coil spring shape is good.
2, office's center line of putting the coil spring shape that detects antenna is the camber line around the becket axis, and the detection better effects if is put in office.
3, becket, the drawn game of conductor inserts are put and are detected the antenna insulation and arrange, can the outside electromagnetic signal of shielded metal ring, and the detection better effects if is put in office.
4, a plurality of conductor inserts and a plurality of office put that to detect antenna radially corresponding one by one, can improve the local Electric Field Distribution of disk insulator earth potential, improve insulating reliability.
5, the signal extension comprises joint and terminal screw, and terminal screw is screwed onto in the screw hole of joint to pass the through hole contact outward toward in, through terminal screw, joint aerial signal is drawn, and efficiency of assembling is high, and assembly cost is low.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Fig. 1 has illustrated the insulator front section view of a preferred embodiment.
Fig. 2 has illustrated the I place partial enlarged drawing of Fig. 1.
Fig. 3 has illustrated the side sectional view of the insulator application example of a preferred embodiment.
Fig. 4 has illustrated the insulator front section view of second preferred embodiment.
Fig. 5 has illustrated the insulator front section view of the 3rd preferred embodiment.
Embodiment
Please refer to Fig. 1, Fig. 2 and Fig. 3; Pick-up unit is put in Cubicle Gas-Insulated Switchgear office; It is installed in insulator; Barrier insulation for example, it comprises an insulation division 10, at least one conductor inserts 30 and a becket 20 around insulation division 10, said office puts pick-up unit and comprises that at least one office puts and detect antenna 40, at least one signal extension 50 and a signal processing unit.Said office puts and detects antenna 40 and be embedded in insulation division 10, and said signal extension 50 connection offices put and detect antenna 40 and detect antenna 40 detected signals and lead to signal processing unit so that office is put.Said conductor inserts 30 also is located at insulation division 10.
Said office puts and detects antenna 40 spring-like in the shape of a spiral, its material selection aluminium or copper, and the electric conductivity of aluminium, copper is good, helps the reception of signal.And the center line that the coil spring shape that detects antenna 40 is put in said office is the camber line around becket 20 axis.Among the present embodiment, said central angle is 60 degree.
Among the present embodiment, said conductor inserts 30 drawn games are put and are detected antenna 40 numbers such as grade and all be three, but not as limit, as required, can all be one also, or, also can one be one, another is two or the like.Among the embodiment; Said three offices put and detect the axis annular array layout of antenna 40 along becket 20; Said three a plurality of conductor inserts 30 are arranged along becket 20 axis annular arrays, and the radius of said conductor inserts 30 annular arrays is put the radius that detects antenna 40 annular arrays less than office.Best, it is r1 that the least radius around the insulator axis that detects antenna 40 is put in said office, and maximum radius is r2; The radius around the insulator axis of said shell 60 inwalls is r; Said r1 < < r is put and is detected antenna and have radius around the insulator axis less than the part of housing 60 inwalls around the radius of insulator axis, has again greater than the part of housing 60 inwalls around the radius of insulator axis by r2, the office of making; Also be, office puts and detects antenna part and stretch within housing 60 inwalls in projection, and part is positioned at outside housing 60 inwalls; Adopt this mode that the radius of annular array is remained in the OK range; The signal that radius then receives too greatly a little less than, influence office and put the detection effect, the too little Electric Field Distribution that can influence insulator of radius; When this radius value is suitable; Like Fig. 3, not only can the office of making put that to detect effect better, can also improve the Electric Field Distribution of insulator.Among the present embodiment, said three conductor inserts 30 and a plurality of offices put that to detect antenna 40 radially corresponding one by one, among the said conductor inserts 30 between drawn game put be positioned between detecting among the antenna 40 radially same.
Said signal extension 50 numbers are two, and two ends 41 of stretching out of detecting antenna 40 are put outwardly in their offices of being connected to.
Said signal extension 50 comprises a joint 51 and a terminal screw 52; Two ends of said joint 51 are established a patchhole 511 and a screw hole 512 respectively, and the annexation that the end 41 of detecting antenna 40 is inserted in the patchhole 511 and constitutes location, contact is put in office, and the opening of said screw hole 512 outwardly; The through hole 21 that said becket 20 runs through inside and outside establishing; Said terminal screw 52 to outside pass through hole 21 contacts toward in and be screwed onto in the screw hole 512 of joint 51; Draw aerial signal is put detection antenna 40 from the inner office of insulator through joint 51, terminal screw 52; Deliver to signal processing unit through concentric cable again, with fixing or strengthen fixing metal ring, insulation division, office put detect antenna, signal is drawn the connection between the unit.Said signal processing unit can adopt existing office to put the signal processing unit of pick-up unit.Adopt this structure can be convenient to processing and manufacturing, be convenient to install, and do not influence insulator strength, and can effectively transmit signal.When terminal screw was connected with the concentric cable core, preferably the screen layer of concentric cable was connected with becket, and the other end of concentric cable is connected to outside signal processing unit.
Best, said becket 20,30 drawn games of conductor inserts are put and are detected antenna 40 insulation and arrange.Therefore, said terminal screw 52 outer sheathed insulated parts are with insulation joint screw 52 and becket 20.Among the present embodiment, said insulated part comprises one first insulation sleeve 53 and one second insulation sleeve 54.Said first insulation sleeve, 53 endoporus are the little shoulder hole of outer imperial palace.Said through hole 21 be outer large, medium and small in big shoulder hole, it has an outer hole section, a mesopore section and an endoporus section.It is outer big stepped in little that said second insulation sleeve, 54 outer walls are, and its outer wall has an external wall section and an inner wall section.Said first insulation sleeve 53 is installed in the outer hole section of through hole 21, and the inner face of first insulation sleeve 53 leans against the cascaded surface outwardly of through hole 21.The mesopore section of the adaptive insertion through hole of external wall section of said second insulation sleeve, 54 outer walls, the diameter of the endoporus section of the diameter of the inner wall section of said outer wall and shoulder hole is adaptive, and the inner wall section of said outer wall stretches out becket and inner face and joint end face backward and is abutted against.When being spirally connected installation connection screw 52; Its screw crown is against the cascaded surface outwardly of first insulation sleeve 53; And first insulation sleeve, becket, joint and second insulation sleeve are fixed together, and said first, second insulation sleeve not only seals and also plays the enhanced positioning effect.
Said insulation division 10 is employed in the becket 20, conductor inserts 30, office put detect antenna 40, moulding are made in the 50 outer cast of signal extension.Among the present embodiment, the rounded plate-like of said insulator, its material selection epoxy resin is filled.Among the present embodiment, said conductor inserts 30 is arranged on the radially middle part of insulation division.
Second preferred embodiment
It and the first preferred embodiment difference are: please refer to Fig. 4, said three conductor inserts 30 and three offices put and detect antenna 40 correspondence of also can interlocking.
The 3rd preferred embodiment
It and the first preferred embodiment difference are: please refer to Fig. 5, said signal extension 50 numbers are one, and said office establishes an extension line 42 in the middle of putting and detecting antenna 40, and said extension line 42 is inserted in the patchhole 511 of joint 51.Office puts two ends detecting antenna 40 and can insulate or short circuit with becket.
The 4th preferred embodiment
It and the first preferred embodiment difference are: office puts when detecting antenna amount more than one, can all or part of as required office of being used for put detection.Be used for office and put when detecting, an end of antenna is connected with signal output unit, connects delivering to signal processing unit through concentric cable, and insulate with becket, and the other end can insulate or short circuit with becket.Certainly during short circuit, also can be through the impedance short circuit.
Be not used in office and put the antenna need and the becket short circuit of detection, produce high pressure, jeopardize equipment and personal safety to avoid floating potential.When needing short circuit, the taking-up of first insulation sleeve is got final product, make terminal screw and becket short circuit.
The 5th preferred embodiment
The insulator that detects antenna is put in band office; It comprises an insulation division 10, at least one conductor inserts 30 and a becket 20 around insulation division 10; It comprises also that at least one office puts and detects antenna 40 and at least one signal extension 50; Said office puts and detects antenna 40 and be embedded in insulation division 10, and said signal extension 50 connection offices put and detect antenna 40 so that signal is drawn, and said office puts and detects antenna 40 spring-like in the shape of a spiral.Put about insulation division 10, becket 20, conductor inserts 30, office and to detect antenna 40 and signal extension 50 can be with reference to first, second, third, fourth preferred embodiment.
The above; Be merely the utility model preferred embodiment; So can not limit the scope that the utility model is implemented according to this, the equivalence of promptly doing according to the utility model claim and description changes and modifies, and all should still belong in the scope that the utility model contains.
Claims (12)
1. pick-up unit is put in a Cubicle Gas-Insulated Switchgear office; It is characterized in that: it connects insulator; Said insulator comprises an insulation division (10), at least one conductor inserts (30) and a becket (20) around insulation division (10), and said office puts pick-up unit and comprises that detection antenna (40) is put at least one office, at least one signal extension (50) and is positioned at the outer signal processing unit of insulator; Said office puts detection antenna (40) and is embedded in insulation division (10), and said signal extension (50) connection office puts and detects antenna (40) and signal processing unit, and said office puts and detects antenna (40) spring-like in the shape of a spiral.
2. pick-up unit is put in a kind of Cubicle Gas-Insulated Switchgear according to claim 1 office; It is characterized in that: the through hole (21) that said becket (20) runs through inside and outside establishing, said signal extension (50) pass through hole (21) and detection antenna (40) is put in signal connection office.
3. pick-up unit is put in a kind of Cubicle Gas-Insulated Switchgear according to claim 2 office, it is characterized in that: said insulation division (10) is employed in the becket (20), conductor inserts (30), office are put and detected antenna (40) and the outer cast making of signal extension (50) moulding.
4. pick-up unit is put in a kind of Cubicle Gas-Insulated Switchgear according to claim 1 office, and it is characterized in that: the center line that the coil spring shape that detects antenna (40) is put in said office is the camber line around becket (20) axis.
5. pick-up unit is put in a kind of Cubicle Gas-Insulated Switchgear according to claim 1 office, it is characterized in that: said becket (20), conductor inserts (30) drawn game are put and are detected antenna (40) insulation and arrange.
6. pick-up unit is put in a kind of Cubicle Gas-Insulated Switchgear according to claim 2 office; It is characterized in that: said signal extension (50) comprises a joint (51) and a terminal screw (52); Said joint (51) signal connection office puts and detects antenna (40) and have a screw hole; And the opening of said screw hole outwardly; Said terminal screw (52) is screwed onto in the screw hole of joint (51) to pass the through hole contact outward toward in.
7. pick-up unit is put in a kind of Cubicle Gas-Insulated Switchgear according to claim 6 office, it is characterized in that: the outer sheathed insulated part of said terminal screw (52), and through insulated part insulation joint screw (52) and becket (20).
8. pick-up unit is put in a kind of Cubicle Gas-Insulated Switchgear according to claim 1 office; It is characterized in that: said conductor inserts (30) drawn game is put detection antenna numbers such as (40) and all is a plurality of; A plurality of offices put and detect the axis annular array layout of antenna (40) along becket (20), and a plurality of conductor inserts (30) are arranged along becket (20) axis annular array.
9. pick-up unit is put in a kind of Cubicle Gas-Insulated Switchgear according to claim 8 office, it is characterized in that: said a plurality of conductor inserts (30) and a plurality of office put that to detect antenna (40) radially corresponding one by one.
10. pick-up unit is put in a kind of Cubicle Gas-Insulated Switchgear according to claim 8 office, it is characterized in that: said a plurality of conductor inserts (30) and a plurality of office put that to detect antenna (40) staggered corresponding.
11. pick-up unit is put in a kind of Cubicle Gas-Insulated Switchgear according to claim 1 office; It is characterized in that: said insulator is installed in the housing (60); It is r1 that the least radius around the insulator axis that detects antenna (40) is put in said office, and maximum radius is r2; The radius around the insulator axis of said shell (60) inwall is r; Said r1 < r < r2.
12. insulator of putting the detection antenna with office; It comprises an insulation division (10), at least one conductor inserts (30) and a becket (20) around insulation division (10); It is characterized in that: it comprises also that at least one office puts and detects antenna (40) and at least one signal extension (50); Said office puts detection antenna (40) and is embedded in insulation division (10); Said signal extension (50) connection office puts and detects antenna (40), and said office puts and detects antenna (40) spring-like in the shape of a spiral.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220229532 CN202583400U (en) | 2012-05-21 | 2012-05-21 | Partial discharge detection device of air insulation metal enclosed switch device and insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220229532 CN202583400U (en) | 2012-05-21 | 2012-05-21 | Partial discharge detection device of air insulation metal enclosed switch device and insulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202583400U true CN202583400U (en) | 2012-12-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220229532 Withdrawn - After Issue CN202583400U (en) | 2012-05-21 | 2012-05-21 | Partial discharge detection device of air insulation metal enclosed switch device and insulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202583400U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102955106A (en) * | 2012-05-21 | 2013-03-06 | 厦门华电开关有限公司 | Partial discharging detection device of gas insulation metal sealing switching equipment and insulator |
-
2012
- 2012-05-21 CN CN 201220229532 patent/CN202583400U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102955106A (en) * | 2012-05-21 | 2013-03-06 | 厦门华电开关有限公司 | Partial discharging detection device of gas insulation metal sealing switching equipment and insulator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121205 Effective date of abandoning: 20150826 |
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| RGAV | Abandon patent right to avoid regrant |