CN201811980U - Measuring terminal and isolating switch - Google Patents
Measuring terminal and isolating switch Download PDFInfo
- Publication number
- CN201811980U CN201811980U CN2010202534797U CN201020253479U CN201811980U CN 201811980 U CN201811980 U CN 201811980U CN 2010202534797 U CN2010202534797 U CN 2010202534797U CN 201020253479 U CN201020253479 U CN 201020253479U CN 201811980 U CN201811980 U CN 201811980U
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- CN
- China
- Prior art keywords
- lead wire
- wire lever
- housing
- contact
- measurement terminal
- 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
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Abstract
The utility model relates to a measuring terminal and an isolating switch. The isolating switch comprises a casing and a resistor body arranged in the casing; the measuring terminal is arranged in the position where the casing is opposite to a shielding terminal of the resistor body in an insulated manner and comprises a connecting casing and a lead wire rod penetrating an axial through hole of the connecting casing in a sliding manner and serving as a conductor; and a contact terminal which can be in contact with and conducted with the shielding terminal of the resistor body after the lead wire rod extends out in a sliding manner is arranged at the front end of the lead wire rod. The measuring terminal is arranged on the casing of the isolating switch, as long as the lead wire rod is pushed to extend out, the contact terminal arranged at the front end of the lead wire rod is in contact with and conducted with the shielding terminal of the resistor body, and the measuring points of the resistor body inside the isolating switch are introduced out of the isolating switch, so that the resistance value of the resistor body can be conveniently detected for checking whether the resistor body is in good condition.
Description
Technical field
The utility model relates to field of measuring technique, relates in particular to a kind of measurement terminal that is used to draw electrical equipment internal measurement point, and the utility model also relates to a kind of disconnector simultaneously.
Background technology
In order to suppress the very fast transient overvoltage (Very Fast Transient Overvoltage) that isolator operation produces, in the disconnector of UHV (ultra-high voltage), extra-high voltage GIS, installed parallel resistance additional, because the measurement point at parallel resistance and two ends thereof all is positioned at the inside of disconnector, when disconnector installation or overhaul, be difficult to this resistive element is detected, be difficult to promptly determine whether resistive element is good, there also do not have electrical equipment internal measurement point to be guided to electrical equipment at present to be outside so that the measurement mechanism of measuring.
UHV (ultra-high voltage), breaker in extra high voltage generally adopt the multi-break isolating switch, when carrying out the divide-shut brake attribute testing, if signal wire takes out from the both sides of all fractures, it is that the data of measuring just can not divided for which fracture, the error of Ce Lianging is bigger like this, if detect as signal wire, then can improve the precision of measuring the divide-shut brake characteristic, but not have special instrument the potential measurement point in the middle of the fracture can be drawn so that measure in the middle of the isolating switch fracture at present from the middle extraction potential of fracture.
Summary of the invention
The purpose of this utility model provides a kind of electrical equipment outside of electrical equipment internal measurement point being guided to so that the measurement terminal of measuring.
For achieving the above object, the utility model adopts following technical scheme: a kind of measurement terminal, this measurement terminal comprises and connects housing and slip is installed on the lead wire lever as conductor that is connected in the housing axially extending bore, is provided with the contact that is used for contacting with live end conducting at the front end of lead wire lever.
Described contact releasable connection is at the front end of lead wire lever.
Described lead wire lever front end face is provided with axial jack, and the afterbody of described contact inserts in this jack and is slidingly matched with jack, is provided with the electrically conductive elastic buffer body between at the bottom of the afterbody termination of contact and the jack hole.
The rear end of described lead wire lever is provided with the syndeton that is used to install the lengthening lead wire lever.
The follower head of described connection housing axially extending bore partly is the pre-small post-large bellmouth of diameter, the follower head that connects housing is provided with set nut and the elastic insert that is used for the axial locking lead wire lever, set nut is threaded with the follower head that is connected housing, and elastic insert is connected to and connects between shell ends head part bellmouth hole wall and the set nut.
The inner hole surface that is slidingly matched with lead wire lever of described connection housing is provided with seal.
Measurement terminal of the present utility model adopts to slide to be installed on and connects that lead wire lever is a conductor on the housing, as long as promote lead wire lever it is stretched out in use, the contact that is arranged on the lead wire lever front end just can contact conducting with live end to be measured, so just the measurement point of electrical equipment inside can be guided to the outside so that measure.
Another purpose of the present utility model provides a kind of disconnector, when this disconnector installation or overhaul, can measure to confirm whether resistive element is good the resistive element of its inside easily.
For achieving the above object, the utility model adopts following technical scheme: a kind of disconnector, comprise housing and be arranged on the interior resistive element of housing, rectifying right position insulation with resistive element shielding and be provided with measurement terminal at described housing, this measurement terminal comprises connecting housing and sliding and is installed on the lead wire lever as conductor that is connected in the housing axially extending bore, is provided with the contact that can shield the end in contact conducting after the lead wire lever slip is stretched out with resistive element at the front end of lead wire lever.
Described lead wire lever front end face is provided with axial jack, and the afterbody of contact inserts in this jack and is slidingly matched with jack, is provided with the electrically conductive elastic buffer body between at the bottom of the afterbody termination of contact and the jack hole.
The rear end of described lead wire lever is provided with the syndeton that is used to install the lengthening lead wire lever.
The follower head of described connection housing axially extending bore partly is the pre-small post-large bellmouth of diameter, the follower head that connects housing is provided with set nut and the elastic insert that is used for the axial locking lead wire lever, set nut is threaded with the follower head that is connected housing, elastic insert is connected to and connects between shell ends head part bellmouth hole wall and the set nut, and the inner hole surface that is slidingly matched with lead wire lever that connects housing is provided with seal.
The utility model is provided with measurement terminal on the disconnector housing, as long as promote lead wire lever it is stretched out, the contact that is arranged on the lead wire lever front end just can shield the end in contact conducting with resistive element, measurement point with disconnector internal electrical resistance body is drawn out to the disconnector outside like this, and the resistance that just can detect resistive element easily is to confirm its quality.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of measurement terminal of the present utility model;
Fig. 2 is the structural representation of a kind of embodiment of disconnector of the present utility model;
Fig. 3 is the structural representation of measurement terminal when detecting of disconnector of the present utility model.
Embodiment
Shown in Figure 1, a kind of measurement terminal comprises contact 1, lead wire lever 2 and is connected housing 3.Maintenance and replacing for the ease of contact 1, contact 1 releasable connection is at the front end of lead wire lever 2, be provided with axial jack at lead wire lever 2 front end faces, the afterbody of contact 1 inserts in this jack and with jack and is slidingly matched, be provided with the electrically conductive elastic buffer body between at the bottom of the afterbody of contact and the jack hole, this electrically conductive elastic buffer body is a spring 4, it can certainly be the conductive rubber body, the front end of contact 1 is a hemispherical dome structure, conducting when spring 4 two ends reliably are connected with the assurance measurement with the afterbody of contact 1 with lead wire lever 2 respectively simultaneously can also prevent that hard collision from causing device failure; The rear end of described lead wire lever 2 is provided with the syndeton that is used to install the lengthening lead wire lever, this syndeton can be that threaded hole, threaded post, clamping are first-class, it is threaded hole 7 herein, the lengthening lead wire lever of certain-length can be installed so as required, but need to guarantee that the lengthening lead wire lever also can be free to slide in connecting housing; The follower head of described connection housing 3 axially extending bores partly is the pre-small post-large bellmouth of diameter, the follower head that connects housing 3 is provided with set nut 6 and the elastic insert 8 that is used for axial locking lead wire lever 2, set nut 6 is threaded with the follower head that is connected housing 3, elastic insert 8 is connected to and connects between housing 3 end portion bellmouth hole walls and the set nut 6, when releasing lead wire lever, contact 1 with tighten set nut 6 after conducting end to be measured contacts, when tightening set nut 6, set nut 6 axially pushes elastic insert 8 inwards, and thereby the direction extruding elastic insert 8 locking lead wire lever 2 that connect the vertical hole wall of housing 3 follower head bellmouth hole walls are convenient for measuring operation in case lead wire lever 2 retreats; The inner hole surface that is slidingly matched with lead wire lever 2 that connects housing 3 is provided with seal 5, solved the slipper seal structure problem of gas leakage easily so effectively, because the sealing effectiveness of K type seal is better in the slipper seal structure, so seal is selected K type seal herein, certainly if there is not seal request, also seal can be set.
A kind of disconnector shown in Figure 2, comprise housing 19 and be arranged on the interior resistive element of housing, described housing 19 with two of resistive element shielding ends 13 over against the position all insulate to be provided with only illustrate among the measurement terminal 20(figure and corresponding measurement terminal of shielding end of resistive element), the structure of measurement terminal 20 is identical with the structure of measurement terminal shown in Figure 1, will not describe in detail herein.Measurement terminal among Fig. 2 is in the state of measurement; at this moment; screw 7 screw-ins one bolt that is used for installing the lengthening lead wire lever of the rear end of measurement terminal; main dustproof, position-limiting action; add a gland bonnet 17 that is installed on the disconnector housing 19 in the outer end of measurement terminal, mainly play sealing, dustproof, protection.
Shown in Figure 3, when measuring resistance body resistance, earlier 2 in the bolt that gland bonnet 17 is fixed on the housing 19 are unscrewed about 5mm, after slowly emitting the residual gas in the gland bonnet 17, other bolts of pulling down fixing seal lid 17 again are to take off gland bonnet 17, unload the termination bolt that screws in the threaded hole of lead wire lever rear end of measurement terminal 20, in the rear end of lead wire lever one lengthening lead wire lever 18(is installed and determines whether install as required), unscrew set nut, by promoting the lengthening lead wire lever contact that is inserted in the lead wire lever front end jack is contacted with the resistive element shielding end 13 of disconnector, tighten described set nut with fixing lengthening lead wire lever, so just can guide to the outside of disconnector to the resistive element of disconnector inside shielding end 13 so that measure.After using end, unscrew set nut earlier, pull out and unload the lengthening lead wire lever, and lead wire lever is resetted, tighten set nut then, make the rear end end portion of lead wire lever be in the outside that connects housing, the installation of lengthening lead wire lever 18 when being convenient to like this use next time, is loaded onto gland bonnet at last screw terminal hook bolt.
When the measurement terminal in the utility model is applied in the divide-shut brake attribute testing of isolating switch fracture, the lead wire lever that is arranged on the measurement terminal of the positive correspondence position of isolating switch fracture by promotion makes the contact of its front end be inserted into the fracture centre to take out electric potential signal, and its concrete operation method is the same.
Claims (10)
1. measurement terminal is characterized in that: this measurement terminal comprises and connects housing and slip is installed on the lead wire lever as conductor that is connected in the housing axially extending bore, is provided with the contact that is used for contacting with live end conducting at the front end of lead wire lever.
2. measurement terminal according to claim 1 is characterized in that: described contact releasable connection is at the front end of lead wire lever.
3. measurement terminal according to claim 2, it is characterized in that: described lead wire lever front end face is provided with axial jack, the afterbody of described contact inserts in this jack and is slidingly matched with jack, is provided with the electrically conductive elastic buffer body between at the bottom of the afterbody termination of contact and the jack hole.
4. according to claim 1 or 2 or 3 described measurement terminal, it is characterized in that: the rear end of described lead wire lever is provided with the syndeton that is used to install the lengthening lead wire lever.
5. according to claim 1 or 2 or 3 described measurement terminal, it is characterized in that: the follower head of described connection housing axially extending bore partly is the pre-small post-large bellmouth of diameter, the follower head that connects housing is provided with set nut and the elastic insert that is used for the axial locking lead wire lever, set nut is threaded with the follower head that is connected housing, and elastic insert is connected to and connects between shell ends head part bellmouth hole wall and the set nut.
6. according to claim 1 or 2 or 3 described measurement terminal, it is characterized in that: the inner hole surface that is slidingly matched with lead wire lever of described connection housing is provided with seal.
7. disconnector, comprise housing and be arranged on the interior resistive element of housing, it is characterized in that: rectifying right position insulation with resistive element shielding and be provided with measurement terminal at described housing, this measurement terminal comprises connecting housing and sliding and is installed on the lead wire lever as conductor that is connected in the housing axially extending bore, is provided with the contact that can shield the end in contact conducting after the lead wire lever slip is stretched out with resistive element at the front end of lead wire lever.
8. disconnector according to claim 7, it is characterized in that: described lead wire lever front end face is provided with axial jack, the afterbody of contact inserts in this jack and is slidingly matched with jack, is provided with the electrically conductive elastic buffer body between at the bottom of the afterbody termination of contact and the jack hole.
9. according to claim 7 or 8 described disconnectores, it is characterized in that: the rear end of described lead wire lever is provided with the syndeton that is used to install the lengthening lead wire lever.
10. according to claim 7 or 8 described disconnectores, it is characterized in that: the follower head of described connection housing axially extending bore partly is the pre-small post-large bellmouth of diameter, the follower head that connects housing is provided with set nut and the elastic insert that is used for the axial locking lead wire lever, set nut is threaded with the follower head that is connected housing, elastic insert is connected to and connects between shell ends head part bellmouth hole wall and the set nut, and the inner hole surface that is slidingly matched with lead wire lever that connects housing is provided with seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202534797U CN201811980U (en) | 2010-07-09 | 2010-07-09 | Measuring terminal and isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202534797U CN201811980U (en) | 2010-07-09 | 2010-07-09 | Measuring terminal and isolating switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201811980U true CN201811980U (en) | 2011-04-27 |
Family
ID=43894922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202534797U Expired - Lifetime CN201811980U (en) | 2010-07-09 | 2010-07-09 | Measuring terminal and isolating switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201811980U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101887071A (en) * | 2010-07-09 | 2010-11-17 | 河南平高电气股份有限公司 | Measurement terminal and isolating switch |
| CN107578944A (en) * | 2017-07-24 | 2018-01-12 | 许继集团有限公司 | Disconnecting switch and its moving contact |
-
2010
- 2010-07-09 CN CN2010202534797U patent/CN201811980U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101887071A (en) * | 2010-07-09 | 2010-11-17 | 河南平高电气股份有限公司 | Measurement terminal and isolating switch |
| CN101887071B (en) * | 2010-07-09 | 2015-05-13 | 河南平高电气股份有限公司 | Measurement terminal and isolating switch |
| CN107578944A (en) * | 2017-07-24 | 2018-01-12 | 许继集团有限公司 | Disconnecting switch and its moving contact |
| CN107578944B (en) * | 2017-07-24 | 2019-05-14 | 许继集团有限公司 | Disconnecting switch and its moving contact |
| CN110473735A (en) * | 2017-07-24 | 2019-11-19 | 许继集团有限公司 | Disconnecting switch and its moving contact |
| CN110491714A (en) * | 2017-07-24 | 2019-11-22 | 许继集团有限公司 | Disconnecting switch and its moving contact |
| CN110491714B (en) * | 2017-07-24 | 2021-08-03 | 许继集团有限公司 | Isolating switch and moving contact thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Lu Peng Inventor after: Fang Yuying Inventor after: Zhao Wenqiang Inventor before: Lu Peng Inventor before: Fang Yuying Inventor before: Zhao Wenqiang |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110427 |
|
| CX01 | Expiry of patent term |