CN208984741U - A kind of fault detector - Google Patents
A kind of fault detector Download PDFInfo
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- CN208984741U CN208984741U CN201821740698.0U CN201821740698U CN208984741U CN 208984741 U CN208984741 U CN 208984741U CN 201821740698 U CN201821740698 U CN 201821740698U CN 208984741 U CN208984741 U CN 208984741U
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- fixed frame
- cable
- fault
- fault detector
- indicator ontology
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Abstract
The utility model relates to smart electric grid system technical fields, more particularly to a kind of fault detector, aim to solve the problem that conventional failure indicator was difficult to the problem of position of fault is accurately positioned in multi-power supply system, including indicator ontology and the installation shell being sheathed on the indicator ontology, the installation shell includes fixed frame, it is set to the surface of the indicator ontology, for wearing cable；Positioning device is set on the vertical bar of the fixed frame, is used for sandwiched fixed cable；Carriage is set on the cross bar of the fixed frame, is moved up for controlling the indicator ontology in cable dynamic.The utility model is after fixed frame is worn on electric power cable, cable is fixed using positioning device, prevent it from being influenced to shake by wind-force or other extraneous factors, by carriage indicator ontology is moved therewith on cable, fault point present on electric power cable is found effectively with this.
Description
Technical field
The utility model relates to smart electric grid system technical fields, and in particular to a kind of fault detector.
Background technique
In distribution automation technology, it usually needs it is positioned in time when power circuit breaks down, shows abort situation,
So that operation maintenance personnel can quickly and accurately find fault point according to the alarm signal of fault detector, and with chip manufacturing work
The fast development of skill and mechanics of communication, totally digitilized fault detector have already appeared.
Fault detector, which refers to, to be installed on power circuit, short-circuit and singlephase earth fault for monitoring on-line, indicating
Intelligent apparatus.It can be applied to the power equipments such as ring network cabinet, switching station, the power distribution room switchgear of overhead transmission line and cable run.Line
After road is broken down, track walker can determine rapidly fault section, find out fault point by the alarm indication of indicator.Band logical
The teletransmission of fault-signal may be implemented in the fault detector of letter, and in conjunction with communication terminal device and monitoring backstage, it is automatic to constitute failure
Positioning system realizes quick, the accurate positionin of fault section.
But with the further genralrlization application of distributed energy, the power supply point on route increases, when the power supply of more power supplys
The certain point of system is broken down when generating fault current, and relevant multiple fault detectors can all issue same alarm signal
Number, operations staff is misled, at this time, it is impossible to accurate judgement position of failure point.
Utility model content
Therefore, the technical problem to be solved by the present invention is to overcome conventional failure indicator to be difficult to multiple feed
The defect that the position of fault is accurately positioned in system, to provide a kind of fault detector.
The above-mentioned technical purpose of the utility model has the technical scheme that
A kind of fault detector, it is described including indicator ontology and the installation shell being sheathed on the indicator ontology
Installing shell includes: fixed frame, the surface of the indicator ontology is set to, for wearing cable；Positioning device is set to
On the vertical bar of the fixed frame, it to be used for sandwiched fixed cable；Carriage is set on the cross bar of the fixed frame, for controlling
Make the indicator ontology moved up in cable it is dynamic.
It is highly preferred that the cross bar of the fixed frame and vertical bar side are rotatablely connected by articulated shaft, the other side passes through card
Button is fixedly connected.
It is highly preferred that the positioning device includes: at least one set of elastic component, it is set to the two sides vertical bar of the fixed frame
On, and the center line about the fixed frame is axisymmetricly arranged；Locating piece is set to the elastic component far from the fixed frame
One end is used for sandwiched fixed cable.
It is highly preferred that there are two the locating piece sets, and the shape and structure of the locating piece relative resilient part side is arc
Shape.
It is highly preferred that the arc shaped inside face of the locating piece is evenly distributed with several accommodating cavities, the accommodating cavity is built-in with
Ball, the ball diameter are greater than the accommodating cavity opening diameter.
It is highly preferred that the carriage includes: idler wheel, be set to the middle part of the fixed frame cross bar, and with it is described solid
Determine the cross bar rotation connection of frame；External tooth, is set to the idler wheel side, and with the idler wheel integrally connected；Spur gear, and it is described
Outer tooth engagement connection；Driving motor is set on the cross bar of the fixed frame, and the output shaft of the driving motor and described straight
It is fixedly connected at gear axis, for driving the spur gear to rotate.
It is highly preferred that the contact surface of the idler wheel and the cable is equipped with waved flute or fin.
It is highly preferred that the indicator ontology includes: detection device, for detecting the fault current of route；Discriminating gear,
It is electrically connected with the detection device, for judging the power direction of fault current；Warning device, it is electrical with the discriminating gear
Connection, for controlling the first alarm signal of output and the second alarm signal.
Technical solutions of the utility model have the advantages that
1. the fault detector of the utility model utilizes positioning device handle after fixed frame is worn on electric power cable
Cable fixes, and prevents it from being influenced to shake by wind-force or other extraneous factors, makes indicator ontology by carriage therewith
It can be moved on cable, fault point present on electric power cable be found effectively with this, and according to earthing detection principle
Come on-line checking, instruction short circuit and singlephase earth fault with short-circuit detecting principle.
2. cable can be fixed between locating piece, simultaneously by the fault detector of the utility model, the setting of positioning device
Because of the presence of elastic component, movement of the carriage on cable is not only facilitated, more can adapt to the power line of different-diameter
Cable, application are wider.
3. the fault detector of the utility model, the setting of carriage is led to when needing to find the fault point on cable
The movement of control driving motor is crossed, and can be rolled with idler wheel, at this time indicator by spur gear with the engaged transmission of external tooth
Ontology is automatically moved in cable main body, solve the problems, such as the position of fault be accurately positioned it is difficult, in addition this structure with
There is self-locking function by means of driving motor.
4. the fault detector of the utility model, the setting of indicator ontology, when the power direction of fault current is forward direction
When, warning device exports the first alarm signal, when the power direction of fault current is reversed, the second alarm of warning device output
Signal, the power direction of fault current is judged with this according to the type of alarm signal, and further learns fault point and failure
Section positional relationship between indicator.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of cross-sectional view of the fault detector of embodiment of the utility model；
Fig. 2 is the module connection signal of indicator ontology in a kind of fault detector of embodiment of the utility model
Figure.
Description of symbols:
1, indicator ontology；11, detection device；12, discriminating gear；13, warning device；2, shell is installed；21, fixed
Frame；211, articulated shaft；212, it buckles；22, positioning device；221, elastic component；222, locating piece；223, accommodating cavity；224, ball；
23, carriage；231, idler wheel；232, external tooth；233, spur gear；234, driving motor.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
A kind of fault detector is arranged with mounting shell on the indicator ontology 1 as shown in Figure 1, including indicator ontology 1
Indicator ontology 1 can be mounted on power circuit by installing shell 2, be examined with this according to earthing detection principle and short circuit by body 2
It surveys principle and comes on-line checking, instruction short circuit and singlephase earth fault.
But when the certain point of multi-power supply system breaks down and generates fault current, relevant multiple indicating fault
Device can all issue same alarm signal, mislead operations staff.To solve this problem, as shown in Figure 1, above-mentioned installation shell 2
Including the fixed frame 21 right above indicator ontology 1 is arranged in, can be used to wear cable；Specifically, in this reality of the utility model
It applies in example, fixed frame 21 is made of two vertical bars and a cross bar (not indicating in figure), is wherein arranged on the vertical bar of fixed frame 21
There is the positioning device 22 for sandwiched fixed cable, and is provided on the cross bar of fixed frame 21 and exists for control instructions device ontology 1
The carriage 23 moved on cable.Therefore, multi-power supply system is divided into several regions, each region is mounted on
This fault detector is prevented so that cable is fixed using positioning device 22 after fixed frame 21 is worn on electric power cable
Only it is influenced to shake by wind-force or other extraneous factors, enables indicator ontology 1 in cable by carriage 23 therewith
On moved, electric power cable is effectively found with this present on fault point, solve be difficult to carry out the position of fault it is accurate
The problem of positioning.
As shown in Figure 1, the side of 21 cross bar of fixed frame and vertical bar is rotatablely connected by articulated shaft 211, the other side passes through
Buckle 212 is fixedly connected, so that cable is placed on the top of fixed frame 21 by user, and is rotated articulated shaft 211, is plugged together buckle
212, allow fixed frame 21 to be integrally threaded through on electric power cable, in order to which the erection of subsequent positioning device 22 is fixed, easy to operate,
It is convenient.
As shown in Figure 1, positioning device 22 includes at least one set of elastic component 221, and in this embodiment of the utility model, elasticity
Part 221 is spring, and the center line on the two sides vertical bar of fixed frame 21 and about fixed frame 21 is arranged in and is axisymmetricly arranged；Separately
Outside, which is provided with the locating piece 222 for fixed cable far from 21 one end of fixed frame.This structure can be well by cable
It is fixed between locating piece 222, simultaneously as the presence of elastic component 221, not only facilitates shifting of the carriage 23 on cable
It is dynamic, it more can adapt to the electric power cable of different-diameter, application is wider.
As shown in Figure 1, there are two the settings of locating piece 222, and the shape and structure of 222 relative resilient part of locating piece, 221 side
For arc, in this way convenient for the shape of fitting cable itself to wrap cable, thus be not easily susceptible to wind-force or other it is extraneous because
Element influences that radial displacement occurs.
As shown in Figure 1, the arc shaped inside face of locating piece 222 is evenly distributed with several accommodating cavities 223, these accommodating cavities 223
It is inside equipped with ball 224,224 diameter of ball is greater than 223 opening diameter of accommodating cavity.Using ball 224 arrange in pairs or groups carriage 23, from
And during the axial movement of indicator ontology 1, locating piece 222, which will not generate frictional force, leads to abrasion and/or the position of cable
It moves and hinders.Meanwhile 224 diameter of ball is greater than 223 opening diameter of accommodating cavity, it can be ensured that ball 224 is in rolling contact with cable, depending on
Position block 222 not with cable contact.
As shown in Figure 1, carriage 23 includes idler wheel 231, external tooth 232, spur gear 233 and driving motor 234, wherein rolling
Wheel 231 is arranged in the middle part of 21 cross bar of fixed frame and is rotatablely connected with 21 cross bar of fixed frame, which connects perpendicular to cable
The side of touching is provided with a circle external tooth 232, idler wheel 231 and 232 integrally connected of external tooth, and driving motor 234 is mounted on fixation
It on the cross bar of frame 21, is fixedly connected at the output shaft and 233 axis of spur gear of driving motor 234, spur gear 233 and external tooth 232
Engagement connection.When needing to find the fault point on cable, acted by control driving motor 234, and same by spur gear 233
The engaged transmission of external tooth 232 can be rolled with idler wheel 231, and indicator ontology 1 automatically carries out in cable main body at this time
It is mobile, effectively to realize on-line checking, instruction short circuit and singlephase earth fault；In addition this structure has self-locking by driving motor
Function.
As shown in Figure 1, being provided with waved flute or fin on the contact surface of idler wheel 231 and cable, contact is increased with this
Area improves frictional force, prevents idler wheel 231 from slipping phenomenon occurs in rotation.
As shown in Fig. 2, indicator ontology 1 includes detection device 11, discriminating gear 12, warning device 13, wherein detection dress
11 are set for detecting the fault current of route；Discriminating gear 12 and detection device 11 are electrically connected, and can be used for judging fault current
Direction；Warning device 13 and discriminating gear 12 are electrically connected, for controlling output alarm signal.When the power side of fault current
To be positive when, warning device 13 exports the first alarm signal, when the power direction of fault current is reversed, warning device 13
Export the second alarm signal.In the present embodiment, fault detector is equipped with reference current Directional Sign, when fault current and reference
Current direction is identical, then the power direction of fault current is forward direction；When fault current is contrary with reference current, then failure is electric
The power direction of stream is reversed.Therefore, the power direction that fault current can be judged according to the type of alarm signal, goes forward side by side one
Step learns the section positional relationship between fault point and fault detector.
The working principle of this fault detector: cable is placed on the top of fixed frame 21 by user, and rotates articulated shaft
211, buckle 212 is plugged together, fixed frame 21 is allowed integrally to be threaded through on electric power cable.It is worn on electric power cable in fixed frame 21
Afterwards, elastic component 221 is squeezed, so that locating piece 222 is drawn close to fixed frame 21, after cable is located among two locating piece 222, pine
Elastic component 221 is opened, cable is wrapped by locating piece 222 at this time, and ball 224 is in rolling contact with cable, passes through control driving therewith
Motor 234 acts, and can be rolled with idler wheel 231, be indicated at this time with the engaged transmission of external tooth 232 by spur gear 233
Device ontology 1 is automatically moved in cable main body, effectively finds fault point present on electric power cable with this.Work as detection
When power direction to fault current is positive, warning device 13 exports the first alarm signal, when the power direction of fault current
When being reversed, warning device 13 exports the second alarm signal, the power direction of fault current is judged with this, and further learn
Section positional relationship between fault point and fault detector.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes among the protection scope created still in the utility model.
Claims (8)
1. a kind of fault detector, including indicator ontology (1) and the installation shell being sheathed on the indicator ontology (1)
(2), which is characterized in that the installation shell (2) includes:
Fixed frame (21) is set to the surface of the indicator ontology (1), for wearing cable；
Positioning device (22), is set on the vertical bar of the fixed frame (21), is used for sandwiched fixed cable；
Carriage (23), is set on the cross bar of the fixed frame (21), for controlling the indicator ontology (1) in cable
Upper movement.
2. a kind of fault detector according to claim 1, which is characterized in that the cross bar and vertical bar of the fixed frame (21)
Side is rotatablely connected by articulated shaft (211), and the other side is fixedly connected by buckling (212).
3. a kind of fault detector according to claim 1, which is characterized in that the positioning device (22) include:
At least one set of elastic component (221), is set on the two sides vertical bar of the fixed frame (21), and about the fixed frame (21)
Center line be axisymmetricly arranged；
Locating piece (222) is set to the elastic component (221) far from the fixed frame (21) one end, is used for sandwiched fixed cable.
4. a kind of fault detector according to claim 3, which is characterized in that there are two the locating piece (222) sets, and
The shape and structure of locating piece (222) relative resilient part (221) side is arc.
5. a kind of fault detector according to claim 4, which is characterized in that the arc shaped inside of the locating piece (222)
Face is evenly distributed with several accommodating cavities (223), and the accommodating cavity (223) is built-in with ball (224), ball (224) diameter
Greater than the accommodating cavity (223) opening diameter.
6. a kind of fault detector according to claim 1, which is characterized in that the carriage (23) includes:
Idler wheel (231) is set to the middle part of the fixed frame (21) cross bar, and rotates and connect with the cross bar of the fixed frame (21)
It connects；
External tooth (232), is set to the idler wheel (231) side, and with the idler wheel (231) integrally connected；
Spur gear (233) engages connection with the external tooth (232)；
Driving motor (234), is set on the cross bar of the fixed frame (21), and the output shaft of the driving motor (234) with
It is fixedly connected at spur gear (233) axis, for driving the spur gear (233) to rotate.
7. a kind of fault detector according to claim 6, which is characterized in that the idler wheel (231) and the cable
Contact surface is equipped with waved flute or fin.
8. a kind of fault detector described in any claim in -7 according to claim 1, which is characterized in that the indicator
Ontology (1) includes:
Detection device (11), for detecting the fault current of route；
Discriminating gear (12) is electrically connected, for judging the power direction of fault current with the detection device (11)；
Warning device (13) is electrically connected with the discriminating gear (12), for controlling the first alarm signal of output and the second report
Alert signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821740698.0U CN208984741U (en) | 2018-10-25 | 2018-10-25 | A kind of fault detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821740698.0U CN208984741U (en) | 2018-10-25 | 2018-10-25 | A kind of fault detector |
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| Publication Number | Publication Date |
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| CN208984741U true CN208984741U (en) | 2019-06-14 |
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| CN201821740698.0U Active CN208984741U (en) | 2018-10-25 | 2018-10-25 | A kind of fault detector |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111965491A (en) * | 2020-08-24 | 2020-11-20 | 山东梅格彤天电气有限公司 | On-site high-precision fault indicator device based on edge computing technology |
| CN112034208A (en) * | 2020-09-08 | 2020-12-04 | 河南省三禾电气有限公司 | Fault indicator collection system |
| CN113295965A (en) * | 2021-05-25 | 2021-08-24 | 国网山东省电力公司济南市济阳区供电公司 | Distribution network ground fault positioning method, system and terminal |
| CN113433422A (en) * | 2021-06-22 | 2021-09-24 | 国家电网有限公司技术学院分公司 | Device for positioning power distribution network line fault |
-
2018
- 2018-10-25 CN CN201821740698.0U patent/CN208984741U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111965491A (en) * | 2020-08-24 | 2020-11-20 | 山东梅格彤天电气有限公司 | On-site high-precision fault indicator device based on edge computing technology |
| CN112034208A (en) * | 2020-09-08 | 2020-12-04 | 河南省三禾电气有限公司 | Fault indicator collection system |
| CN113295965A (en) * | 2021-05-25 | 2021-08-24 | 国网山东省电力公司济南市济阳区供电公司 | Distribution network ground fault positioning method, system and terminal |
| CN113433422A (en) * | 2021-06-22 | 2021-09-24 | 国家电网有限公司技术学院分公司 | Device for positioning power distribution network line fault |
| CN113433422B (en) * | 2021-06-22 | 2023-01-03 | 国家电网有限公司技术学院分公司 | Device for positioning power distribution network line fault |
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