CN205333703U - Test interfering signal shield assembly is put in office - Google Patents
Test interfering signal shield assembly is put in office Download PDFInfo
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- CN205333703U CN205333703U CN201620032435.9U CN201620032435U CN205333703U CN 205333703 U CN205333703 U CN 205333703U CN 201620032435 U CN201620032435 U CN 201620032435U CN 205333703 U CN205333703 U CN 205333703U
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Abstract
The utility model provides a test interfering signal shield assembly is put in office, is including the electromagnetic shield that can buckle cover, and the electromagnetic shield cover is the strip, and both ends are equipped with connection structure, when electromagnetic shield covers the connection structure be connected together at both ends, make the electromagnetic shield cover forms one and is used for the parcel at the equipment test point position outlying housing that awaits measuring. The utility model discloses an interfering signal shield assembly mainly comprises electromagnetic shield cover, and the structure is very simple, will the utility model discloses a connection structure that electromagnetic shield covers both ends is connected around in the equipment test point position periphery of awaiting measuring to the electromagnetic shield cover, has accomplished promptly the utility model discloses interfering signal shield assembly's installation is loosened connection structure is left behind the electromagnetic shield cover has been accomplished promptly interfering signal shield assembly's dismantlement, it is very convenient to load and unload.
Description
Technical field
This utility model relates to a kind of when transformer station carries out the Partial discharge signal test of converting equipment inside, and interference signal can carry out the device of effectively shielding。
Background technology
The general charging equipment in transformer station's inner high voltage place is intensive, when carrying out the Partial discharge signal test of converting equipment inside, if the contiguous high voltage alive equipment in test loop, ultra-high-tension power transmission line, transmitting set or other such as equipment such as controllable silicon, brush, the high-frequency signal that these equipment produces, all can be coupled to test loop with the form of electromagnetic induction, electromagnetic radiation through stray electrical perhaps stray inductance, test process is produced interference, it is necessary to take shielding measure。
Adopt the screening arrangement screening experiment loop being made up of semi-conducting material at present, but the sensor being used for gathering the internal Partial discharge signal (abbreviation of local discharge signal) of converting equipment is shielded。The process of current converting equipment internal Partial discharge signal test is as follows, and sensor is placed in the hole place on converting equipment shell, the internal Partial discharge signal of detection converting equipment。For the inside Partial discharge signal test of GIS device and gas-insulated switchgear, as it is shown in figure 1, GIS device 15 flange 16 position is provided with a circle hole for injecting glue 17, during test, sensor is placed in hole for injecting glue 17 place, the Partial discharge signal within GIS device can be detected。From the process of above-mentioned GIS device internal Partial discharge signal test it may be seen that following problem, on the one hand, the interference signal that external equipment produces can enter inside GIS device by hole for injecting glue, the Partial discharge signal within GIS device is produced interference, makes testing result inaccurate；It addition, sensor shields, the interference signal that external equipment produces can directly affect the testing result of sensor。So, existing screening arrangement shielding measure is comprehensive not, to such an extent as to when converting equipment carrying out office and putting test, is difficult to obtain exactly the local signal of device interior, thus causing to put, by above-mentioned office, the operation conditions testing judgment device exactly。
Utility model content
Technical problem to be solved in the utility model is to provide a kind of simple in construction, test interference signal shielding device of automobile is put in convenient disassembly, office that shield effectiveness is good, to make up the deficiency in existing shield technology, makes device interior office put test result more accurate。
This utility model solves its technical problem by following technical solution: test interference signal shielding device of automobile is put in a kind of office, including the electro-magnetic shielding cover that can bend, electro-magnetic shielding cover is strip, two ends are provided with attachment structure, when the attachment structure at described electro-magnetic shielding cover two ends connects together, described electro-magnetic shielding cover is made to form a housing peripheral for being wrapped in Devices to test test point position。
Carry out converting equipment office when putting test, as carry out GIS device office put test time, after sensor is placed in hole for injecting glue place, electro-magnetic shielding cover of the present utility model is utilized to be wrapped in GIS device flange section peripheral, prevent the high-frequency signal that external equipment produces from entering inside GIS device by the hole for injecting glue of a circle on flange position, also being wrapped in electro-magnetic shielding cover by sensor, high-frequency signal isolation sensor and external equipment produced is left simultaneously, so that the signal of sensor detection is more accurate。
Described electro-magnetic shielding cover is made up of Antiradiation protection cloth。
Arch upward in the middle part of the housing formed by described electro-magnetic shielding cover, the upper end open of described housing and lower ending opening constitute be positioned at described housing two ends tighten mouth, so that the upper and lower end opening of housing can fit tightly with the periphery at Devices to test test point position, thus forming the space of a closing in the middle part of housing, arcuate configuration in the middle part of housing, be equivalent to expand the internal diameter of housing, housing can be facilitated in the installation of equipment periphery。
Described electro-magnetic shielding cover is provided with testing window, and described testing window includes the opening being opened on described electro-magnetic shielding cover, and is flexibly connected, is used for covering the testing window radome of described opening with the electro-magnetic shielding cover of described opening。
Described testing window radome cover over said opening time, fitting in the edge of edge and described opening, arches upward in middle part。
Electro-magnetic shielding cover near described testing window radome one lateral edges and described opening is connected, and other lateral edges is connected by VELCRO with the electro-magnetic shielding cover near described opening。
The attachment structure at described electro-magnetic shielding cover two ends is be fixed on the VELCRO matched in described electro-magnetic shielding cover two ends, and described VELCRO has certain width, in order to adjust the area of both sides VELCRO docking, the Devices to test of adaptive sizes。
Relative to prior art, this utility model has the advantages that
1) interference signal shielding device of automobile of the present utility model is mainly made up of an electro-magnetic shielding cover, structure is very simple, electro-magnetic shielding cover of the present utility model is wound on Devices to test test point position peripheral, connect the attachment structure at electro-magnetic shielding cover two ends, namely complete the installation of this utility model interference signal shielding device of automobile, unclamp described attachment structure, described electro-magnetic shielding cover of leaving behind, namely complete the dismounting of described interference signal shielding device of automobile, load and unload very convenient；After electro-magnetic shielding cover of the present utility model is wrapped in Devices to test test point periphery, the high-frequency signal that not only can prevent the external world enters inside Devices to test, but also sensor has been wrapped in inside electro-magnetic shielding cover, mask office and put the interference signal of test experiments loop data collection terminal, shield effectiveness is good, compensate for converting equipment office and put the deficiency testing existing shield technology, make device interior office put test result more accurately, be conducive to putting test by office and carry out the accurate judgement of equipment running status；
2) this utility model adopts Antiradiation protection cloth as shielding material, and shield effectiveness is good, and cost is low, lightweight, durable in use；
3) electro-magnetic shielding cover of the present utility model is provided with special testing window, facilitates while sensor is installed and again sensor has been carried out good shielding；
4) attachment structure of the present utility model is VELCRO, not only makes interference signal shielding device of automobile easy accessibility of the present utility model, and can adaptive various sizes of equipment, there is certain versatility；It addition, arch upward in the middle part of electro-magnetic shielding cover of the present utility model, make housing have bigger internal diameter, be easily installed in the periphery of Devices to test。
Accompanying drawing explanation
Fig. 1 is the structural representation at GIS device test point position；
Fig. 2 is the structural representation that test interference signal shielding device of automobile is put in this utility model office。
Detailed description of the invention
As shown in Figure 2, the interference signal shielding device of automobile of the present embodiment includes the electro-magnetic shielding cover 11 that can bend, electro-magnetic shielding cover 11 is in strip, and electro-magnetic shielding cover 11 two ends are provided with the VELCRO 13 being connected, so that dismounting the more convenient to operate of interference signal shielding device of automobile of the present utility model。The VELCRO 13 at this place has certain thickness, in order to can easily by adjusting the area of the VELCRO docking at two ends, the Devices to test of adaptive sizes。When the VELCRO 13 at electro-magnetic shielding cover 11 two ends fits together, electro-magnetic shielding cover 11 is made to form a housing peripheral for being wrapped in Devices to test test point position。Arch upward in the middle part of housing, be equivalent to expand the internal diameter of housing, housing can be facilitated in the installation of equipment periphery, the upper end open of housing and lower ending opening constitute be positioned at housing two ends tighten mouth, so that the upper and lower end opening of housing can fit tightly with the periphery at Devices to test test point position, it is prevented that external interference signals enters Devices to test inside or interference sensor by the gap between the upper and lower port of housing and Devices to test shell。
Electro-magnetic shielding cover 11 is provided with testing window, and testing window includes the opening 12 being opened on electro-magnetic shielding cover, and for covering the testing window radome 14 of opening 12。Testing window radome 14 1 lateral edges is fixing with the electro-magnetic shielding cover 11 at opening 12 position to be connected, and other lateral edges is connected (not shown in FIG.) with the electro-magnetic shielding cover 11 near opening 12 by VELCRO。Arch upward in the middle part of testing window radome 14, to facilitate the installation of sensor。Electro-magnetic shielding cover 11 is when being arranged on Devices to test, testing window thereon is relative with the test point of Devices to test, open the testing window radome 14 of testing window, sensor is arranged on described test point, the lead-in wire of sensor passes housing from the opening 12 of testing window, Guan Bi testing window radome 14, is sealed in sensor inside housing。
The electro-magnetic shielding cover 11 of the present embodiment is made up of Antiradiation protection cloth。Described Antiradiation protection cloth is made up of metallic fiber radiation-proof fabric or copper/nickel ion fabric, there is high electric conductivity and shield effectiveness, there is antioxidation, etch-proof characteristic simultaneously, used as electro-magnetic shielding cover of the present utility model, not only durable in use, and light weight, cost is low, and shield effectiveness is good。
Claims (7)
1. test interference signal shielding device of automobile is put in an office, it is characterized in that, including the electro-magnetic shielding cover that can bend, electro-magnetic shielding cover is strip, two ends are provided with attachment structure, when the attachment structure at described electro-magnetic shielding cover two ends connects together, described electro-magnetic shielding cover is made to form a housing peripheral for being wrapped in Devices to test test point position。
2. test interference signal shielding device of automobile is put in office according to claim 1, it is characterised in that described electro-magnetic shielding cover is made up of Antiradiation protection cloth。
3. test interference signal shielding device of automobile is put in office according to claim 2, it is characterised in that arch upward in the middle part of the housing formed by described electro-magnetic shielding cover, the upper end open of described housing and lower ending opening constitute be positioned at described housing two ends tighten mouth。
4. test interference signal shielding device of automobile is put in office according to claim 3, it is characterized in that, described electro-magnetic shielding cover is provided with testing window, described testing window includes the opening being opened on described electro-magnetic shielding cover, and is flexibly connected, is used for covering the testing window radome of described opening with the electro-magnetic shielding cover of described opening。
5. test interference signal shielding device of automobile is put in office according to claim 4, it is characterised in that described testing window radome cover over said opening time, fitting in the edge of edge and described opening, arches upward in middle part。
6. test interference signal shielding device of automobile is put in office according to claim 5, it is characterized in that, electro-magnetic shielding cover near described testing window radome one lateral edges and described opening is connected, and other lateral edges is connected by VELCRO with the electro-magnetic shielding cover near described opening。
7. test interference signal shielding device of automobile is put in the office according to claim 1 ~ 6 any one claim, it is characterized in that, the attachment structure at described electro-magnetic shielding cover two ends is be fixed on the VELCRO matched in described electro-magnetic shielding cover two ends, and described VELCRO has certain width。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620032435.9U CN205333703U (en) | 2016-01-13 | 2016-01-13 | Test interfering signal shield assembly is put in office |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620032435.9U CN205333703U (en) | 2016-01-13 | 2016-01-13 | Test interfering signal shield assembly is put in office |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205333703U true CN205333703U (en) | 2016-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620032435.9U Active CN205333703U (en) | 2016-01-13 | 2016-01-13 | Test interfering signal shield assembly is put in office |
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| Country | Link |
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| CN (1) | CN205333703U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107677856A (en) * | 2017-08-01 | 2018-02-09 | 国网浙江省电力公司嘉兴供电公司 | A kind of GIS insulating basins superfrequency test interference shielding method and its device |
-
2016
- 2016-01-13 CN CN201620032435.9U patent/CN205333703U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107677856A (en) * | 2017-08-01 | 2018-02-09 | 国网浙江省电力公司嘉兴供电公司 | A kind of GIS insulating basins superfrequency test interference shielding method and its device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |