CN206848414U - Detect the external sensor of GIS device discharge signal - Google Patents
Detect the external sensor of GIS device discharge signal Download PDFInfo
- Publication number
- CN206848414U CN206848414U CN201720750494.4U CN201720750494U CN206848414U CN 206848414 U CN206848414 U CN 206848414U CN 201720750494 U CN201720750494 U CN 201720750494U CN 206848414 U CN206848414 U CN 206848414U
- Authority
- CN
- China
- Prior art keywords
- metal
- discharge signal
- gis device
- external sensor
- device discharge
- 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.)
- Active
Links
Landscapes
- Testing Relating To Insulation (AREA)
Abstract
It the utility model is related to a kind of external sensor for detecting GIS device discharge signal, include the metal-back of a bottom opening, the antenna of detection discharge signal is provided with the metal-back, the signal wire of the antenna stretches out the metal-back, the outer cup of the metal-back is provided with metal cap, the metal-back is connected with disc insulator, the metal-back also includes the shield ring being located on the disc insulator, and the external sensor of the detection GIS device discharge signal can effectively prevent external interference and anti-tampering effect is good.
Description
Technical field
GIS device field is the utility model is related to, more particularly to a kind of external sensing for detecting GIS device discharge signal
Device.
Background technology
In recent years, with the development of Construction of Intercity Network, the quantity of GIS device (Cubicle Gas-Insulated Switchgear)
It is continuously increased, with increasing for GIS device quantity, the probability that GIS device breaks down also is increasing.Research shows, GIS device
Internal fault is more using insulation failure.The shelf depreciation of GIS device is often the tendency and the form of expression of insulation failure, and one
As think in GIS device that electric discharge decomposes SF6 gases and will have a strong impact on Electric Field Distribution, cause electric field distortion, make insulating materials rotten
Erosion, finally triggers insulation breakdown.It was verified that carry out Partial Discharge Detection it is possible to prevente effectively from the generation of GIS accidents.
SF6 gases in GIS device have very high dielectric strength.Research shows, in hyperbar SF6 gaseous environments
In shelf depreciation its discharge signal rising edge and the duration it is extremely short, generally ns levels, typical GIS equipment partial discharge letter
Number frequency spectrum can from low frequency to hundreds of MHz even more than 1GHz.Discharge pulse ripple in GIS equipment is not only with transverse electromagnetic wave
The form of (TEM ripples) is propagated, but also can be propagated in a manner of TE wave (TE ripples) and transverse magnetic wave (TM ripples).For
A lower-cut-off frequency, generally hundreds of MHz be present in TE ripple and TM ripple.Because the metal coaxial configuration of GIS device is one
Good waveguide, ultra-high frequency signal caused by shelf depreciation can effectively ducting, many places are equipped with benzvalene form in GIS device
Insulator, these insulators are nonferromagnetic material, can transmit uhf electromagnetic wave signal, when GIS equipment partial discharge is produced
Raw electromagnetic wave along metal shaft (cylinder) propagate when, part signal can be by insulator to external radiation.
Compared with traditional method for measurement of partial discharge, the method (i.e. UHF methods) for detecting this ultra high frequency discharge signal has
Its unique noiseproof feature.In general, the interference signal encountered in measurement of partial discharge mainly comes from electricity in power network
The interference of magnetic signal, as caused interference and various high voltage electric equipments produce electric discharge during corona interference, switching manipulation
Deng, these interference belong to impulse type interference signal, and its feature is often close with local discharge signal, or even unanimously.Therefore,
For Partial Discharge Detecting Technology, it is in current traditional measurement of partial discharge to solve the interference problem encountered in measurement process
Major Difficulties.
The content of the invention
In view of the shortcomings of the prior art, the utility model, which provides one kind, can effectively prevent external interference and anti-tampering
The external sensor of the good detection GIS device discharge signal of effect.
To achieve these goals, the utility model can be realized by the following technical solutions：One kind detection GIS is set
The external sensor of standby discharge signal, include the metal-back of a bottom opening, detection discharge signal is provided with the metal-back
Antenna, the signal wire of the antenna stretches out the metal-back, and the outer cup of the metal-back is provided with metal cap, the metal-back
It is connected with disc insulator, the metal-back also includes the shield ring being located on the disc insulator.
Further：The metal cap and the shield ring insulation set.
Further：The shield ring is annularly arranged on disc insulator.
Further：The shield ring, which includes enclosing, to be set in a ring body enclosed and two extended from ring body to the metal-back
Extension, the extension are symmetrical set.
Further：The metal-back is not connected to each other with the metal cap.
Further：The metal-back is set in distance with the metal cap.
Compared to prior art, a kind of external sensor for detecting GIS device discharge signal of the present utility model is at least
Advantages below be present：The external sensor of the detection GIS device discharge signal includes metal-back, is located at outside metal-back
Metal cap and the shield ring being located on disc insulator, metal-back can play a part of avoiding various interference signals, while
The outside mask of metal-back is provided with metal cap, can be very good to prevent the interference of outer signals, and anti-tampering effect is good, and in benzvalene form
Insulator is provided with shield ring, can not only prevent the signal interference in the external world, and transmits signal caused by shelf depreciation, prevents dry
It is good to disturb effect.
Brief description of the drawings
Describe the utility model in detail with reference to the accompanying drawings and detailed description；
Fig. 1 is schematic diagram of the present utility model.
Description of reference numerals：1st, disc insulator；2nd, shield ring；3rd, extension；4th, metal-back；5th, antenna；6、N-TYPE
Joint；7th, metal cap.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in the embodiment of the utility model is clearly and completely described, it is clear that is retouched
The embodiment stated is part of the embodiment of the present utility model, rather than whole embodiments.Based on the reality in the utility model
Example is applied, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, is all belonged to
In the scope of protection of the utility model.
As shown in figure 1, it illustrates it is of the present utility model it is a kind of detect GIS device discharge signal external sensor,
Metal-back 4 including a bottom opening, the interior antenna 5 for being provided with detection discharge signal of the metal-back 4, the signal of the antenna 5
Line stretches out the metal-back 4, and the outer cup of the metal-back 4 is provided with metal cap 7, and the metal-back 4 connects with disc insulator 1
Connect, the metal-back 4 also includes the shield ring 2 being located on the disc insulator 1.The signal wire of antenna 5 stretches out metal-back 4,
The one end for stretching out metal-back 4 is connected with N-TYPE joints 6.The metal cap 7 and the insulation set of shield ring 2.The masking
Ring 2 is annularly arranged on disc insulator 1.The shield ring 2, which includes enclosing, to be set in the ring body of a circle and from ring body to the gold
Belong to two extensions 3 that shell 4 extends, the extension 3 is symmetrical set.The metal-back 4 and the metal cap 7 are each other not
Connection.The metal-back 4 is set in distance with the metal cap 7.
The external sensor of detection GIS device discharge signal of the present utility model includes metal-back 4, is located at metal-back
Metal cap 7 outside 4 and the shield ring 2 being located on disc insulator 1, metal-back 4 can play the work for avoiding various interference signals
With, while metal cap 7 is provided with the outside mask of metal-back 4, it can be very good to prevent the interference of outer signals, anti-tampering effect
It is good, and shield ring 2 is provided with disc insulator 1, the signal interference in the external world can be not only prevented, and transmit shelf depreciation
Caused signal, anti-tampering effect are good.
The advantages of general principle and principal character of the present utility model and the utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification
Simply illustrate principle of the present utility model, on the premise of the spirit and scope of the utility model is not departed from, the utility model is also
Various changes and modifications are had, these changes and improvements are both fallen within claimed the scope of the utility model.The utility model
Claimed scope is by appended claims and its equivalent thereof.
Claims (6)
- A kind of 1. external sensor for detecting GIS device discharge signal, it is characterised in that：Include the metal of a bottom opening Shell, the interior antenna for being provided with detection discharge signal of the metal-back, the signal wire of the antenna stretch out the metal-back, the metal The outer cup of shell is provided with metal cap, and the metal-back is connected with disc insulator, and the metal-back also includes being located at the benzvalene form Shield ring on insulator.
- A kind of 2. external sensor for detecting GIS device discharge signal as claimed in claim 1, it is characterised in that：It is described Metal cap and the shield ring insulation set.
- A kind of 3. external sensor for detecting GIS device discharge signal as claimed in claim 1, it is characterised in that：It is described Shield ring is annularly arranged on disc insulator.
- A kind of 4. external sensor for detecting GIS device discharge signal as claimed in claim 3, it is characterised in that：It is described Shield ring, which includes enclosing, to be set in a ring body enclosed and two extensions extended from ring body to the metal-back, and the extension is in pair Claim to set.
- A kind of 5. external sensor for detecting GIS device discharge signal as claimed in claim 1, it is characterised in that：It is described Metal-back is not connected to each other with the metal cap.
- A kind of 6. external sensor for detecting GIS device discharge signal as claimed in claim 4, it is characterised in that：It is described Metal-back is set in distance with the metal cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720750494.4U CN206848414U (en) | 2017-06-26 | 2017-06-26 | Detect the external sensor of GIS device discharge signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720750494.4U CN206848414U (en) | 2017-06-26 | 2017-06-26 | Detect the external sensor of GIS device discharge signal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206848414U true CN206848414U (en) | 2018-01-05 |
Family
ID=60802563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720750494.4U Active CN206848414U (en) | 2017-06-26 | 2017-06-26 | Detect the external sensor of GIS device discharge signal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206848414U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112469303A (en) * | 2018-08-13 | 2021-03-09 | 郑智秀 | Metal jewelry with non-contact short-distance wireless communication function and manufacturing method thereof |
-
2017
- 2017-06-26 CN CN201720750494.4U patent/CN206848414U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112469303A (en) * | 2018-08-13 | 2021-03-09 | 郑智秀 | Metal jewelry with non-contact short-distance wireless communication function and manufacturing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100363747C (en) | Gas insulation combined electric device local discharge superhigh frequency detection apparatus and method | |
| CN204559041U (en) | Composite high-voltage insulator wall bushing | |
| CN204044296U (en) | A kind of partial discharge detecting system | |
| CN103235166B (en) | Hand-hole type capacitive voltage divider | |
| CN206848414U (en) | Detect the external sensor of GIS device discharge signal | |
| Zhang et al. | A novel partial discharge detection method for power transformers on site adopting its component as ultra-high frequency sensor | |
| CN203732677U (en) | Insulation state detection apparatus of all-insulation tubular busbar | |
| CN203981829U (en) | Local discharge detection device in a kind of high-tension switch cabinet | |
| CN202839308U (en) | High-voltage standard capacitor | |
| CN106025959B (en) | A kind of 550kV GIS inlet-outlet line porcelain bushing shell and its assembly method | |
| CN209946302U (en) | Basin-type insulator embedded with partial discharge sensor | |
| CN102323525A (en) | The above voltage withstand class lead wire insulation of a kind of 35kV performance test method of testing | |
| CN202256589U (en) | External sensor detecting discharging signal of GIS device | |
| CN109216919A (en) | A kind of 1/4 wavelength ultra wide band arrester of 5G communication | |
| CN203535183U (en) | Interturn short circuit test device for current transformer cone capacitor | |
| CN207868779U (en) | A kind of inner cone plugging formula solid insulated busbar terminal | |
| CN209843481U (en) | Multi-turn link type sulfur hexafluoride gas insulation current transformer | |
| CN102800476B (en) | High-voltage standard capacitor | |
| CN106405340A (en) | GIS fault indication system based on partial discharge sensor | |
| CN205960554U (en) | 550kVGIS is with business turn over line porcelain bushing | |
| CN203535175U (en) | Point discharge test device for current-transformer secondary winding | |
| Duan et al. | Study on Characteristics of Different Internal UHF Sensors in GIS | |
| Fujimoto et al. | Propagation properties of PD-emitted electromagnetic wave in three phase encapsulated type GIS with series arrangement and relation between defect position and sensor output | |
| CN204347081U (en) | A kind of power system measuring cable single-ended shielding cover | |
| CN204989396U (en) | Multi -functional insulating property live test appearance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |