CN202583264U - Electromagnetic shielding shell for on-line monitoring device of transmission line - Google Patents
Electromagnetic shielding shell for on-line monitoring device of transmission line Download PDFInfo
- Publication number
- CN202583264U CN202583264U CN 201220125575 CN201220125575U CN202583264U CN 202583264 U CN202583264 U CN 202583264U CN 201220125575 CN201220125575 CN 201220125575 CN 201220125575 U CN201220125575 U CN 201220125575U CN 202583264 U CN202583264 U CN 202583264U
- Authority
- CN
- China
- Prior art keywords
- line
- jar
- metal
- monitoring device
- transmission line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The utility model discloses an electromagnetic shielding shell used for an on-line monitoring device of a transmission line, which consists of a metal outer shell body, a metal inner shell body and a horizontal metal sleeve, wherein the metal outer shell body is transverse cylindrical jar-shaped; the metal sleeve is sleeved on a high-voltage cable and penetrates the inner part of the metal outer shell; the metal inner shell body is positioned in the metal outer shell body; and the inner part is provided with the on-line monitoring device of the transmission line. The electromagnetic shielding shell disclosed by the utility model has the advantages of small volume, low cost, convenient mounting and the like; the shielding effect is high; and the normal operation of the on-line monitoring device of the transmission line can be guaranteed.
Description
Technical field
The utility model relates to a kind of electromagnetic screen betal can that is used for the on high-tension side on-Line Monitor Device of ultra-high-tension power transmission line, belongs to the detection technique field.
Background technology
The transmission line of electricity state on_line monitoring is the basis of intelligent grid, and the safe and reliable operation of transmission line of electricity is played an important role.Transmission line of electricity high-pressure side state monitoring apparatus is used to gather the correlation behavior data of transmission line wire and insulator, is that the transmission line of electricity status monitoring is indispensable.Owing to be installed in the high-pressure side, this device also directly forms very strong power frequency electric field (being directly proportional with the electric pressure of circuit) in case surface except that the power frequency high-intensity magnetic field that produced by current in wire; In addition, the corona on lead and screening can surface also can produce stronger high-frequency electromagnetic interference to monitoring device.For make monitoring device can be under stronger power frequency and high-frequency electromagnetic environment operate as normal, require shielding case can shield the electromagnetic wave of different frequency range, also to be easy on charged high voltage transmission line, install, and can adapt to open-air four seasons working environment.Existing transmission line of electricity high-pressure side state monitoring apparatus generally adopts single layer enclosure, and owing to sheathing material there are differences different frequency shielding electromagnetic waves performance, thereby the electromagnetic interference (EMI) of some frequency band can not be by effective shielding.In addition, single layer enclosure should guarantee the operate as normal that guarantees internal electronic component again easy for installation, so shell structure is complicated, and overall volume is big, and manufacturing cost is high.
The utility model content
The purpose of the utility model be to overcome prior art deficiency, provide a kind of and be easy to install, with low cost and the electromagnetic screen shell that is used for on-line monitoring device for transmission line that shield effectiveness is good.
The alleged problem of the utility model realizes with following technical proposals:
A kind of electromagnetic screen shell that is used for on-line monitoring device for transmission line; Form by metal shell body, metal inner housing and horizontal metal sleeve pipe; The cylindrical tank type that said metal shell body is a traverse; Said metal sleeve is sleeved on the hi-line and from metal shell body inside and passes, and it is inner that said metal inner housing is positioned at the metal shell body, its inner on-Line Monitor Device that transmission line of electricity is installed.
The above-mentioned electromagnetic screen shell that is used for on-line monitoring device for transmission line; Said metal shell body is formed by two parts butt joint up and down; Be respectively first jar and second jar; First jar is connected through the hinge with a side of second jar, and opposite side connects through housing screw, and the metal inner housing is fixedly connected with second jar; Said hi-line sleeve pipe is also formed by two parts butt joint up and down, is respectively upper tube half and lower tube half, and upper tube half and first jar are affixed, and lower tube half and second jar are affixed.
The above-mentioned electromagnetic screen shell that is used for on-line monitoring device for transmission line; Be provided with rubber sleeve between said hi-line sleeve pipe and the hi-line, said rubber sleeve is formed by two parts butt joint up and down, is respectively first cover and second cover; First cover is affixed with upper tube half, and second cover is affixed with lower tube half.
The above-mentioned electromagnetic screen shell that is used for on-line monitoring device for transmission line, first jar is provided with seam with the joint of second jar and the joint of lower tube half and upper tube half.
The above-mentioned electromagnetic screen shell that is used for on-line monitoring device for transmission line, the surfaces externally and internally of said metal shell body is the shiny surface that does not have corner angle.
The utility model adopts double-decker; The metal inner housing adopts aluminum alloy materials to process; Frequency electromagnetic waves there is excellent shielding effect and is beneficial to inner electrical equipment element radiating; The metal shell body adopts mild carbon steel to strike out the cylindrical tank type, and low-frequency electromagnetic wave is had excellent shielding effect and can make the volume of whole device less.The smooth excessively not outstanding corner angle of metal shell body can reduce corona; First jar is provided with seam with the joint of second jar and the joint of lower tube half and upper tube half, can reduce electromagnetic inlet; Metal sleeve is used to prevent hi-line radiated electromagnetic wave in shell, and the effect of rubber sleeve is to make metal sleeve compress hi-line.
The utlity model has advantages such as volume is little, cost is low, easy for installation, and shield effectiveness is good, can guarantee the normal operation of on-line monitoring device for transmission line.
Description of drawings
Below in conjunction with accompanying drawing the utility model is done further to detail.
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the left view of Fig. 1.
Each label is among the figure: 1, hi-line; 2, hinge; 3, first jar; 4, upper tube half fixed mount; 5, upper tube half; 6, lower tube half; 7, the fixed mount of inner casing and lower tube half; 8, metal inner housing; 9, second cover; 10, housing screw; 11, second jar; 12, first cover.
Embodiment
Referring to Fig. 1, Fig. 2, the utility model mainly is made up of metal shell body and metal inner housing.In view of galvanized iron has very strong shielding action to low-frequency electromagnetic wave, and have anti-corrosion and the advantage that is prone to processing, so shell body adopts galvanized iron.Aluminum is good to the shielding action of frequency electromagnetic waves, so inner housing adopts the square housing of selling on the market of aluminium alloy.Shell body is made up of first jar 3, second jar 11, and first jar 3 is connected through hinge 2 with second jar 11 1 sides, and opposite side connects with a housing screw 10, and after housing screw 10 compresses, first jar 3 will be securely fixed on the hi-line 1 with second jar 11.
The inner housing of sealing adopts aluminum alloy materials mainly to shield frequency electromagnetic waves and be beneficial to inner electrical equipment element radiating, and shell adopts mild carbon steel to strike out the cylindrical tank type, and the smooth excessively not outstanding corner angle of tank body can reduce corona; Guaranteed to install the monitoring device of equal volume simultaneously, the cumulative volume of monitoring device is less.Shell body is not done encapsulation process, mainly shields low-frequency electromagnetic wave.For preventing radiated electromagnetic wave in the shell inner high voltage alignment shell; Between shell body and the hi-line 1 the hi-line sleeve pipe is arranged; 6 butt joints form the hi-line sleeve pipe with lower tube half by upper tube half 5; Upper tube half 5 is connected with first jar 3 through upper tube half fixed mount 4, and lower tube half 6 is connected with second jar 11 through fixed mount 7 with metal inner housing 8.For guaranteeing that shell body is pressed on the hi-line 1; Be provided with rubber sleeve between hi-line sleeve pipe and the hi-line 1; This cover promptly has the effect that separates hi-line 1 and housing, can when first jar 3 and second jar 11 fastenings, monitoring device be fixed on the hi-line 1 reliably again, and hi-line 1 is not damaged by pressure.For ease of installing, rubber sleeve also is divided into two parts up and down, second cover 9 and first cover 12, and they are connected with upper tube half 5 with lower tube half 6 respectively.For reducing electromagnetic inlet, first jar 3 all has corresponding seam with second jar 11, second cover 9 and first cover 12, and after first jar 3 fastened with second jar 11, the seam lip was overlapping, can prevent better that electromagnetic wave from getting in the housing from connecting the slit.
The utility model low cost of manufacture, it can shield the interference electromagnetic wave effectively, and monitoring device is worked safely and reliably; Charged installation simultaneously is simple and convenient, only need tighten a housing screw 10.
For making shielding case and hi-line 1 keep same potential, stretch out the part of shell body at the hi-line sleeve pipe and have only a metal holding screw that is pressed on the hi-line.
Claims (5)
1. electromagnetic screen shell that is used for on-line monitoring device for transmission line; It is characterized in that; It is made up of metal shell body, metal inner housing (8) and horizontal metal sleeve pipe, and the cylindrical tank type that said metal shell body is a traverse, said metal sleeve are sleeved on hi-line (1) and go up and pass from metal shell body inside; It is inner that said metal inner housing (8) is positioned at the metal shell body, its inner on-Line Monitor Device that transmission line of electricity is installed.
2. according to the said electromagnetic screen shell that is used for on-line monitoring device for transmission line of claim 1; It is characterized in that; Said metal shell body is formed by two parts butt joint up and down, is respectively first jar (3) and second jar (11), and first jar (3) is connected through hinge (2) with a side of second jar (11); Opposite side connects through housing screw (10), and metal inner housing (8) is fixedly connected with second jar (11); Said hi-line sleeve pipe is also formed by two parts butt joint up and down, is respectively upper tube half (5) and lower tube half (6), and upper tube half (5) is affixed with first jar (3), and lower tube half (6) is affixed with second jar (11).
3. according to the said electromagnetic screen shell that is used for on-line monitoring device for transmission line of claim 2; It is characterized in that; Be provided with rubber sleeve between said hi-line sleeve pipe and the hi-line (1), said rubber sleeve is formed by two parts butt joint up and down, is respectively first cover (12) and second cover (9); First cover (12) is affixed with upper tube half (5), and second cover (9) is affixed with lower tube half (6).
4. according to the said electromagnetic screen shell that is used for on-line monitoring device for transmission line of claim 3, it is characterized in that first jar (3) is provided with seam with the joint of second jar (11) and the joint of lower tube half (6) and upper tube half (5).
5. according to the said electromagnetic screen shell that is used for on-line monitoring device for transmission line of claim 4, it is characterized in that the surfaces externally and internally of said metal shell body is the shiny surface that does not have corner angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220125575 CN202583264U (en) | 2012-03-29 | 2012-03-29 | Electromagnetic shielding shell for on-line monitoring device of transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220125575 CN202583264U (en) | 2012-03-29 | 2012-03-29 | Electromagnetic shielding shell for on-line monitoring device of transmission line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202583264U true CN202583264U (en) | 2012-12-05 |
Family
ID=47252665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220125575 Expired - Lifetime CN202583264U (en) | 2012-03-29 | 2012-03-29 | Electromagnetic shielding shell for on-line monitoring device of transmission line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202583264U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102628881A (en) * | 2012-03-29 | 2012-08-08 | 山西省电力公司太原供电分公司 | Electromagnetic shielding shell for power transmission line one-line monitoring device |
| CN104502643B (en) * | 2014-11-05 | 2017-05-31 | 国网河南省电力公司电力科学研究院 | A kind of fully-sealed electric magnetic screen impedance box |
-
2012
- 2012-03-29 CN CN 201220125575 patent/CN202583264U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102628881A (en) * | 2012-03-29 | 2012-08-08 | 山西省电力公司太原供电分公司 | Electromagnetic shielding shell for power transmission line one-line monitoring device |
| CN104502643B (en) * | 2014-11-05 | 2017-05-31 | 国网河南省电力公司电力科学研究院 | A kind of fully-sealed electric magnetic screen impedance box |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202978201U (en) | Intelligent high-voltage cable joint of built-in partial discharge sensor | |
| CN102628881A (en) | Electromagnetic shielding shell for power transmission line one-line monitoring device | |
| CN202583264U (en) | Electromagnetic shielding shell for on-line monitoring device of transmission line | |
| CN105606976B (en) | A kind of anti-interference method for GIS partial discharge superfrequency on-line monitoring | |
| CN204945169U (en) | High-tension cable now monitors seal box | |
| CN202907409U (en) | Electromagnetic shielding sheath device | |
| CN201681655U (en) | Multipurpose ultrahigh-pressure DC shielded cable | |
| CN204349065U (en) | Comprise the device of EMC and waterproof construction | |
| CN205921100U (en) | Insulating processing apparatus of insulating tube generating line | |
| CN210956419U (en) | Outdoor transformer lightning arrester for power engineering | |
| CN205790741U (en) | A kind of cable connection assembly | |
| CN203011444U (en) | High-frequency electromagnetic interference preventing device of electromagnetic flowmeter | |
| CN206412738U (en) | A kind of cable grounding housing | |
| CN207250956U (en) | A kind of switch board with shielding electromagnetic interference | |
| CN208151505U (en) | Protective device is electroplated | |
| CN204229917U (en) | Electromagnetic shielded cable | |
| CN108429183A (en) | A kind of cross arm insulator mask | |
| CN205861087U (en) | Tube type bus Humidity Detection structure | |
| CN218388500U (en) | Movable shielding interference box | |
| CN203787867U (en) | Single-core high-voltage cable drawing head | |
| CN211148740U (en) | Non-isolated contact conductivity detector | |
| CN203590514U (en) | Microwave shielding structure of microwave heating wall | |
| CN208923708U (en) | A kind of cross arm insulator mask | |
| CN204215763U (en) | Electromagnetic shielding wire | |
| CN204066855U (en) | The special tensile cable of variable-frequency motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121205 |
|
| CX01 | Expiry of patent term |