CN110907745A - Distribution network fault indicator - Google Patents
Distribution network fault indicator Download PDFInfo
- Publication number
- CN110907745A CN110907745A CN201811076522.4A CN201811076522A CN110907745A CN 110907745 A CN110907745 A CN 110907745A CN 201811076522 A CN201811076522 A CN 201811076522A CN 110907745 A CN110907745 A CN 110907745A
- Authority
- CN
- China
- Prior art keywords
- distribution network
- fault indicator
- power distribution
- network fault
- housing
- 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.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Locating Faults (AREA)
Abstract
The invention discloses a power distribution network fault indicator which comprises an upper shell and a lower shell, wherein cable slots are formed in the opposite sides of the upper shell and the lower shell, an upper pressing sheet is arranged in the cable slot of the upper shell, a lower pressing sheet is arranged in the cable slot of the lower shell, a guide rail is arranged between the upper shell and the lower shell, a lead screw is arranged in the guide rail, threads on the lead screw are meshed with threads in the upper pressing sheet and drive the upper pressing sheet to move in the extending direction of the lead screw through rotation, the lower pressing sheet is fixedly connected with the lower shell through bolts, and non-rigid connection is formed between the upper pressing sheet and the upper shell.
Description
Technical Field
The invention relates to the technical field of intelligent monitoring of power distribution networks, in particular to a power distribution network fault indicator.
Background
The power distribution network directly contacts users, and the reliable power supply capacity and the reliable power supply quality of the power distribution network are direct reflection of economic benefits of power enterprises and have immeasurable social benefits. The automatic positioning of the power distribution network fault is an important content of power distribution automation, has great influence on improving the power supply reliability, and is paid more and more attention.
Various fault indicators for power distribution networks have been disclosed in the prior art, such as CN20740843U, which discloses a fault indicator for power distribution networks, comprising a current transformer, an upper shell and a lower shell. According to the structure of the device, the power distribution network fault indicator is characterized in that a space for accommodating a cable is formed by the upper shell and the lower shell, and the fault indicating and positioning device is fixed on the cable by the aid of the wire pressing spring, so that the fixing mode is not firm, and the hidden trouble of loosening is caused.
CN207198282U discloses a smart sensor for a power distribution network. The intelligent sensor comprises an upper shell and a lower shell, wherein a wire pressing locking mechanism used for fixing a power distribution cable, a connecting mechanism used for connecting the upper shell with the lower shell and a connecting hole used for allowing the power distribution cable to pass through are respectively arranged between the upper shell and the lower shell. According to the structural description, the smart sensor for the power distribution network needs at least two locking mechanisms, one is used for locking the cable, and the other is used for closing the upper shell and the lower shell, but in order to ensure the firmness of the cable and the upper shell and the lower shell, the wire pressing locking mechanism and the connecting mechanism are generally screwed in assembly, so that the upper shell and the lower shell are subjected to excessive stress, the shell is possibly deformed, and the hidden danger that equipment falls off from the cable is caused.
It can thus be seen that there is a need in the art for a power distribution network fault indicator that can be securely and reliably secured to a cable.
Disclosure of Invention
The invention aims to achieve the technical purpose that the power distribution network fault indicator can be stably fixed on a cable, and the hidden trouble that the fault indicator is loosened due to cable shaking and equipment aging is eliminated.
The invention provides a power distribution network fault indicator based on the technical purpose, which comprises an upper shell and a lower shell, wherein cable slots are formed in the opposite sides of the upper shell and the lower shell, an upper pressing sheet is arranged in the cable slot of the upper shell, a lower pressing sheet is arranged in the cable slot of the lower shell, a guide rail is arranged between the upper shell and the lower shell, a lead screw is arranged in the guide rail, threads on the lead screw are meshed with threads in the upper pressing sheet and drive the upper pressing sheet to move in the extending direction of the lead screw through rotation, the lower pressing sheet is fixedly connected with the lower shell through bolts, and the upper pressing sheet is in non-rigid connection with the upper shell.
In one embodiment, the non-rigid connection means that the upper pressing sheet is connected with a limit plate inside the upper shell through a connecting rod, a spring is sleeved outside the connecting rod, one end of the spring is connected with the limit plate, and the other end of the spring is connected with the inner wall of the upper shell.
In one embodiment, the upper pressing plate is provided at an upper portion thereof with guide posts inserted into the guide through holes in the upper housing.
In one embodiment, one end of the screw rod positioned at the lower shell is connected with a torque limiter, and a rotary handle is connected with the screw rod through the torque limiter.
In one embodiment, the upper case is provided with a guide piece at a side for mounting the cable, the guide piece being mounted on the upper case by a pivot shaft.
In one embodiment, the guiding sheet is provided with a bump and a buckle, when the upper shell and the lower shell are closed continuously, the bump is extruded by the upper surface of the lower shell to drive the guiding sheet to be continuously close to the side surfaces of the upper shell and the lower shell, when the upper shell and the lower shell are tightly attached, the guiding sheet is tightly attached to the side surfaces of the upper shell and the lower shell, and the buckle is clamped into the clamping groove at the corresponding position of the lower shell.
In one embodiment, the end of the upper shell is provided with a water guide eaves, so that rainwater is prevented from flowing between the upper shell and the lower shell to form a water film.
In one embodiment, the lower part of the lower shell is provided with an openable transparent end cover, and the interior of the lower shell is also provided with a power distribution network operation data processing unit.
In one embodiment, an alternating current taking coil and a small current detecting coil are provided in the upper case and the lower case.
The invention has the advantages that:
1. the non-rigid connection is used between the upper shell and the upper pressing sheet, so that excessive rigid extrusion between the upper shell and the upper pressing sheet under the condition of pressing a cable is avoided, and the whole fault indicator is prevented from falling off due to aging of the upper shell.
2. According to the invention, the torque limiter is additionally arranged between the screw rod and the rotary handle, so that excessive extrusion is prevented under the condition of meeting the requirement of pressing a cable.
3. In the invention, the water guide eaves are arranged on the upper shell body in a vehicle repairing manner, so that a water film is prevented from being formed between the upper shell body and the lower shell body.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic perspective view of a power distribution network fault indicator according to the present invention;
fig. 2 is an internal cross-sectional view of a power distribution network fault indicator in an open state in accordance with the present invention;
fig. 3 is an internal cross-sectional view of a power distribution network fault indicator in a closed state in accordance with the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to fig. 1 to 3.
The power distribution network fault indicator in the embodiment comprises an upper shell 1 and a lower shell 2, wherein cable slots are arranged on the opposite sides of the upper shell and the lower shell, and the two opposite cable slots form a cable through hole 110 when the upper shell and the lower shell are closed.
Coils for alternating current power take-off and current detection are provided in the upper case 1 and the lower case 2.
The cable wire casing of the upper shell 1 is internally provided with an upper pressing sheet 3, the cable wire casing of the lower shell 2 is internally provided with a lower pressing sheet 4, the upper pressing sheet 3 and the lower pressing sheet 4 are enabled to clamp a cable 100 through the closing of the upper shell 1 and the lower shell 2, a guide rail 5 is arranged between the upper shell and the lower shell, a lead screw 6 is arranged in the guide rail 5, threads on the lead screw 6 are meshed with threads in the upper pressing sheet 3, the upper pressing sheet 3 is driven to move in the extending direction of the lead screw 6 through rotation, one end, located on the lower shell 2, of the lead screw 6 is connected with a torque limiter 7, a rotating handle 8 is connected through the torque limiter 7, when a user operates the rotating handle 8, the lead screw 6 is driven to rotate through the torque limiter 7, when the upper pressing sheet and the lower pressing sheet are closed to the maximum torque position, the rotating handle 8 is.
The lower pressing piece 4 is fixedly connected with the lower shell 2 through a bolt, the upper pressing piece 3 is connected with a limiting plate 14 inside the upper shell 1 through a connecting rod 12, a guide column 13 is arranged on the upper portion of the upper pressing piece 3, the guide column 13 is inserted into a guide through hole 15 in the upper shell 1, a spring 11 is sleeved outside the connecting rod 12, one end of the spring 11 is connected with the limiting plate 14, and the other end of the spring is connected with the inner wall of the upper shell 1. Constitute non-rigid connection between preforming 3 and the last casing 1 through above-mentioned structure to avoided last preforming 3 and last casing 1 because the rigid extrusion that the demand of locking cable caused, and then the hidden danger that drops that forms.
The upper case 1 is provided with a guide piece 9 at a side for installing the cable, the guide piece 9 is installed on the upper case 1 through a pivot shaft 19, when the upper case 1 and the lower case 2 are in an opened state, as shown in fig. 2, the guide piece 9 is in an opened position, and at this time, if the fault indicator needs to be installed on the cable, the guide piece 9 easily guides the cable into the interior of the fault indicator. Be provided with lug 18 and buckle 16 on the guide piece 9, when last casing 1 and casing 2 constantly closed down, thereby lug 18 receives the extrusion of casing 2 upper surface down to drive guide piece 9 and constantly presses close to the side of going up casing 1 with casing 2 down, and when the casing pastes tightly down, the side of casing about the guide piece 9 pastes tightly, and buckle 16 card is gone into the draw-in groove 17 that casing 2 corresponds the position down simultaneously.
The end part of the upper shell 1 is provided with a water guide brim 21, so that rainwater is prevented from flowing between the upper shell and the lower shell to form a water film, and the work of the fault indicator is influenced.
The lower part of the lower shell 2 is provided with a transparent end cover 10, the transparent end cover 10 is detachable, an alarm signal can be displayed through the transparent end cover 10, and simultaneously the SIM card in the lower shell 2 can be replaced through an opening or a circuit in the lower shell 2 can be debugged after the transparent end cover 10 is opened. Meanwhile, a power distribution network operation data processing unit is arranged in the lower shell 2, and the data processing unit can realize at least one of the following functions: 1. judging the fault location of the power distribution network; 2. recording fault waveforms when the power distribution network faults occur; 3. collecting fault waveform data; 4. collecting the running annular information of the power distribution network, such as temperature, humidity, wind speed, vibration, images and the like.
Claims (9)
1. The utility model provides a distribution network fault indicator, its characterized in that, distribution network fault indicator includes casing 1 and lower casing 2, upper and lower casing opposite side all is provided with the cable groove, is provided with preforming 3 in the cable groove of upper casing 1, is provided with preforming 4 down in the cable groove of lower casing 2, is provided with guide rail 5 between upper casing 1 and the lower casing 2, is provided with lead screw 6 in the guide rail 5, and the screw thread on the lead screw 6 and the interior thread engagement of last preforming 3 to through rotatory drive going up preforming 3 and moving in the extending direction of lead screw 6, preforming 4 passes through bolt fixed connection with lower casing 2 down, constitute non-rigid connection between last preforming 3 and the upper casing 1.
2. The power distribution network fault indicator of claim 1, wherein the non-rigid connection is that the upper pressing sheet 3 is connected to a limiting plate 14 inside the upper housing 1 through a connecting rod 12, a spring 11 is sleeved outside the connecting rod 12, one end of the spring 11 is connected to the limiting plate 14, and the other end is connected to the inner wall of the upper housing 1.
3. The power distribution network fault indicator of claim 2, characterized in that the upper press plate 3 is provided with a guide post 13 at an upper portion thereof, and the guide post 13 is inserted into a guide through hole 15 in the upper housing 1.
4. The power distribution network fault indicator of claim 1, wherein the end of the lead screw 6 located at the lower housing 2 is connected with a torque limiter 7, and a rotary handle 8 is connected through the torque limiter 7.
5. Power distribution network fault indicator according to claim 1, characterized in that the upper housing 1 is provided with a guiding tab 9 at the side for mounting the cable, said guiding tab 9 being mounted on the upper housing 1 by means of a pivot shaft 19.
6. The distribution network fault indicator of claim 5, wherein the guiding plate 9 is provided with a protrusion 18 and a buckle 16, when the upper housing 1 and the lower housing 2 are not closed, the protrusion 18 is pressed by the upper surface of the lower housing 2 to drive the guiding plate 9 to be close to the side surfaces of the upper housing 1 and the lower housing 2, when the upper housing and the lower housing are close to each other, the guiding plate 9 is close to the side surfaces of the upper housing and the lower housing, and the buckle 16 is clamped into the clamping groove 17 at the corresponding position of the lower housing 2.
7. The power distribution network fault indicator of claim 1, wherein the end of the upper housing 1 is provided with a water guiding eaves 21 to prevent rainwater from flowing between the upper and lower housings to form a water film.
8. The power distribution network fault indicator of claim 1, wherein the lower part of the lower shell 2 is provided with an openable transparent end cover 10, and the inside of the lower shell 2 is further provided with a power distribution network operation data processing unit.
9. The power distribution network fault indicator of claim 1, characterized in that ac pick-up coils and current detection coils are provided in the upper housing 1 and the lower housing 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811076522.4A CN110907745A (en) | 2018-09-14 | 2018-09-14 | Distribution network fault indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811076522.4A CN110907745A (en) | 2018-09-14 | 2018-09-14 | Distribution network fault indicator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110907745A true CN110907745A (en) | 2020-03-24 |
Family
ID=69812387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811076522.4A Pending CN110907745A (en) | 2018-09-14 | 2018-09-14 | Distribution network fault indicator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110907745A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111830433A (en) * | 2020-06-03 | 2020-10-27 | 深圳华物信联科技有限公司 | High-precision cable monitor |
| CN112067860A (en) * | 2020-09-07 | 2020-12-11 | 广东电网有限责任公司 | Distribution lines fault locating device |
-
2018
- 2018-09-14 CN CN201811076522.4A patent/CN110907745A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111830433A (en) * | 2020-06-03 | 2020-10-27 | 深圳华物信联科技有限公司 | High-precision cable monitor |
| CN111830433B (en) * | 2020-06-03 | 2022-11-29 | 深圳华物信联科技有限公司 | High-precision cable monitor |
| CN112067860A (en) * | 2020-09-07 | 2020-12-11 | 广东电网有限责任公司 | Distribution lines fault locating device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208953644U (en) | A kind of distribution network failure indicator | |
| CN110907745A (en) | Distribution network fault indicator | |
| CN101515520A (en) | Intelligent self-diagnosis medium-pressure vacuum circuit breaker | |
| CN210155242U (en) | Fault monitoring device for power distribution network | |
| CN201600275U (en) | Water flow distributor of water quality sampler | |
| CN113884728B (en) | Self-monitoring wireless Internet of things electric energy meter | |
| CN111381009A (en) | Detection sensor adjusting mechanism for air pollution detection equipment | |
| CN104458434B (en) | Service life test device of car connecting wire | |
| CN208874282U (en) | Intellectual computer harmonic elimination apparatus | |
| CN213337404U (en) | Unmanned aerial vehicle for X-ray detection of wire clamp | |
| CN201748019U (en) | Self check type intelligent valve electric actuator | |
| CN203929910U (en) | A kind of indicator of replaceable battery | |
| CN212675140U (en) | Lightning stroke flow measuring and temperature measuring sensor | |
| CN112067856A (en) | A gui ji device for automatically controlled circuit line fault monitoring of car | |
| CN216775191U (en) | Monitoring box | |
| CN218976742U (en) | Video monitoring equipment with anomaly detection function | |
| CN208635869U (en) | A kind of sensor of oiling machine flow meter | |
| CN218848121U (en) | Water quality detection pen | |
| CN218865153U (en) | Intelligent hardware diagnosis frock of high integration | |
| CN217063402U (en) | Ultra-thin direct drive motor convenient to assembly | |
| CN217112657U (en) | ICP sensor state detection device | |
| CN217241120U (en) | Indoor environment regulation and control equipment cabinet between power equipment | |
| CN215219886U (en) | Thing networking device alarm device | |
| CN217239561U (en) | Measuring device for internal temperature of lithium ion battery | |
| CN216645681U (en) | Clamping force testing device and system for rail transit scissor door channel blocking mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |