CN106199150B - Cable protective layer protector monitors system - Google Patents
Cable protective layer protector monitors system Download PDFInfo
- Publication number
- CN106199150B CN106199150B CN201610487679.0A CN201610487679A CN106199150B CN 106199150 B CN106199150 B CN 106199150B CN 201610487679 A CN201610487679 A CN 201610487679A CN 106199150 B CN106199150 B CN 106199150B
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- Prior art keywords
- protective layer
- cable protective
- cable
- layer protector
- circuit board
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- 230000001012 protector Effects 0.000 title claims abstract description 51
- 239000011241 protective layer Substances 0.000 title claims abstract description 48
- 230000007246 mechanism Effects 0.000 claims abstract description 45
- 238000012544 monitoring process Methods 0.000 claims abstract description 15
- 230000000694 effects Effects 0.000 claims abstract description 8
- 238000003032 molecular docking Methods 0.000 claims abstract description 7
- 230000005611 electricity Effects 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims 1
- 238000005516 engineering process Methods 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 230000009471 action Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16533—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application
- G01R19/16538—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies
Abstract
The present invention gives a kind of cable protective layer protectors to monitor system; including current transformer, remote monitoring terminal; control circuit board, battery case, second protection mechanism and fixed bottom plate; control circuit board and remote monitoring terminal pass through the corresponding connection of wireless network; control circuit board, battery case and second protection mechanism are arranged on fixed bottom plate; second protection mechanism includes activity docking holder, pushing mechanism and the second cable protective layer protector, the connection corresponding with control circuit board of battery case, pushing mechanism and the second cable protective layer protector.Current transformer in through the invention can monitor the electric current on cable protective layer protector in real time; can find in time cable there are the problem of; when the original cable protective layer protector of cable sheath when something goes wrong, by start the second cable protective layer protector to cable sheath carry out second protection.
Description
Technical field
The present invention relates to a kind of cable protective layer protectors to monitor system.
Background technology
With the continuous social and economic development, electric power construction projects are more and more, lead to the erection quantity of high-tension cable
It is more and more.In existing energization technology, the power cable of 35KV, 66KV and above is single-core cable, cable trough
If in, usually by one end parallel three phase of cable metal sheath ground connection, the other end is earth-free, the big section power cables of 35kV and
The power cable of 66kV, 110kV and above is single-core cable, and cable metal sheath one end three-phase is interconnected and connect
Ground, the other end are earth-free.In the normal operational process of cable, when lightning wave or internal overvoltage are flowed along cable core,
The earth-free end of cable metal sheath will appear higher impulse overvoltage, or when system short-circuit fault current flows through cable core
When, the earth-free end of sheath also will appear very high line-frequency induction overvoltage, and it is exhausted that above-mentioned overvoltage may puncture protective coverings of cable
Edge causes cable metal sheath multipoint earth faults, seriously affects power cable normal operation or even cable use is greatly decreased
Service life and avoids forming circulation in sheath for the induced voltage and fault overvoltage on limitation power cable metal sheath, electricity
Cable metal sheath one end is directly grounded, and the other end is then grounded by cable protective layer protector.When longtime running, cable sheath protection
Device is easy aging, breaks down, and when low pressure flows through high current, will destroy cable jacket grounding circulation system at this time, for can be real
It applies the normal operation of monitoring cable protective layer protector and is finding cable protective layer protector when something goes wrong, it can be within first time
Second protection is provided for cable sheath, therefore proposes cable protective layer protector monitoring system.
Invention content
The purpose of the present invention is to provide a kind of cable protective layer protectors to monitor system, can not only be real-time by the system
The operation conditions of cable protective layer protector is monitored, while can also be cable protection when operation troubles occurs in cable protective layer protector
Layer provides second protection measure.
The technical scheme adopted by the invention to solve the technical problem is that：A kind of cable protective layer protector monitoring system, packet
Include current transformer, remote monitoring terminal, control circuit board, battery case, second protection mechanism and fixed bottom plate, the control electricity
Road plate and the remote monitoring terminal pass through the corresponding connection of wireless network, the control circuit board, battery case and second protection
Mechanism is arranged on the fixed bottom plate；
The second protection mechanism includes activity docking holder, pushing mechanism and the second cable protective layer protector, the work
Dynamic docking holder includes sheath buttcover plate and the guide rod that is arranged below sheath buttcover plate, and the lower end of the guide rod is nested with
In one guide pipe, and the guide pipe is fixed on the fixed bottom plate, is provided on the lateral wall of the guide rod
Opposite upper L-type support and lower L-type support, and the upper L-type support and lower L-type support are above and below the guide rod axial direction
Distribution, the upper L-type support is connected by a conducting wire with second cable protective layer protector upper end, the lower L-type support and
A push rod head end on the pushing mechanism is connected, and the lower end of second cable protective layer protector is located at the fixed bottom plate
On in the through-hole that opens up, and connect an earth lead in the lower end of second cable protective layer protector；
The connection corresponding with the control circuit board of the battery case, pushing mechanism and current transformer.
Preferably, the guide rod includes conducting rod and insulating bar, and the conducting rod is fixed on the insulating bar,
The upper L-type support is fixedly linked with the conducting rod, and upper L-type support have conductive capability, the lower L-type support with it is described
Insulating bar is fixedly linked, and lower L-type support 421 has insulating capacity.
Preferably, the sheath buttcover plate is an arc panel to match with cable lateral wall.
Preferably, the sheath buttcover plate is the type of falling a Ω elastic plate to match with cable lateral wall.
Preferably, the pushing mechanism is an electric pushrod.
Preferably, the pushing mechanism is an electromagnetism push rod.
Preferably, an audible-visual annunciator, the audible-visual annunciator and control electricity are also set up on the fixed bottom plate
The corresponding connection of road plate.
Further, the control circuit board includes current signal processing unit, pushing mechanism control unit and acousto-optic report
Alert device control unit.
Preferably, one spring is set in the bottom end of the guide pipe, and the spring is located at the guide rod lower end.
The beneficial effects of the invention are as follows：
1, the current transformer in the present invention can monitor the electric current on cable protective layer protector in real time, when current value is more than
When the current threshold being arranged in control circuit board, control circuit board will send warning signal to remote monitoring terminal, prompt work
Make personnel and checks corresponding cable protective layer protector in time.
2, when generation electric current is excessive, current processing unit transmits a signal to pushing mechanism control unit, pushing mechanism list
First rapid unlatching pushing mechanism so that the sheath buttcover plate on movable buttcover plate is contacted with cable sheath rapidly, so that the
Two cable protective layer protectors play the protective effect to cable sheath, can avoid cable sheath and are further damaged；It is oriented to
The spring being arranged in pipe can contact of the effective guarantee activity buttcover plate with cable sheath.
3, when generation electric current is excessive, the audible-visual annunciator control unit in control circuit board may turn on fixed bottom plate
The audible-visual annunciator of setting, audible-visual annunciator prompt staff to determine location of accident rapidly by sound and light, simultaneously
It can warning cable periphery non-working person cable beyond this point.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is the present invention
Part preferred embodiment for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is second protection mechanism structure schematic diagram in the present invention；
Fig. 2 is second protection mechanism structure side view in the present invention；
Fig. 3 is activity docking holder longitudinal sectional view；
Fig. 4 is that guide rod docks place's sectional view with guide pipe；
Fig. 5 is the general frame schematic diagram of the present invention；
In figure：1 fixes bottom plate, 2 current transformers, 3 control circuit boards, 4 second protection mechanisms, 41 guide pipes, 42 guiding
Bar, 42 ' conducting rods, 42 " insulating bars, 421 times L-type supports, L-type support, 423 sheath buttcover plates, 43 pushing mechanisms, 431 on 422
Push rod, 44 second cable protective layer protectors, 441 earth leads, 45 conducting wires, 5 audible-visual annunciators, 6 springs, 7 battery cases.
Specific implementation mode
Below in conjunction with specific embodiment and attached drawing 1-5, technical solution in the embodiment of the present invention carries out clear, complete
Ground describes, it is clear that described embodiment is only a part of preferred embodiment of the present invention, instead of all the embodiments.
Those skilled in the art can do similar deformation without violating the connotation of the present invention, therefore the present invention is not by described below
Specific embodiment limitation.
Remote monitoring terminal in the present invention includes host, display, mouse and keyboard, and host can receive control electricity
The wireless alarm signal that road plate 3 is sent out, when host receives wireless alarm signal, host will be shown by display and be alarmed,
To prompt staff's electric cable protector corresponding with alarm signal over-current phenomenon avoidance occur, staff should rush for scene immediately
It goes to check, in case taking corresponding maintenance measures in time.
The present invention provides a kind of cable protective layer protector monitoring system (as shown in Figure 5), including current transformer 2, far
Journey monitors terminal, control circuit board 3, battery case 7, second protection mechanism 4 and fixed bottom plate 1, the control circuit board 3 with it is described
Remote monitoring terminal uses wireless network by wireless network corresponding connection between control circuit board 3 and remote monitoring terminal
The wireless network communication technology of mechanics of communication and existing maturation in the market, here, not being discussed in detail, the control circuit board
3, battery case 7 and second protection mechanism 4 are arranged on the fixed bottom plate 1, and control circuit board 3 includes that current signal processing is single
Member, pushing mechanism control unit and audible-visual annunciator control unit；
The second protection mechanism 4 (as shown in Figure 1) includes activity docking holder, pushing mechanism 43 and the second cable sheath
Protector 44, the guide rod that the activity docking holder includes sheath buttcover plate 423 and is arranged below sheath buttcover plate 423
42, sheath buttcover plate 423 is used to fit closely with protected cable in practical applications, in this embodiment, preferably
Two kinds of specific embodiments of sheath buttcover plate 423, the first specific embodiment of sheath buttcover plate 423 are：Sheath buttcover plate
423 be an arc panel to match with cable lateral wall；To make sheath buttcover plate 423 after being contacted with sheath buttcover plate 423,
Sheath buttcover plate 423 is not easily disconnected from, and devises the first specific embodiment of sheath buttcover plate 423：Sheath buttcover plate 423 is one
The type of the falling Ω elastic plate that can be matched with cable lateral wall, when cable snaps onto the type of falling Ω elastic plate, the type of falling Ω elastic plate pair
Cable plays certain snap action.
The lower end of the guide rod 42 is nested in a guide pipe 41 (as shown in Figure 4), and the fixation of the guide pipe 41 is set
It sets on the fixed bottom plate 1, there are two opposite upper L-type support 422 and lower L for setting on the lateral wall of the guide rod 42
Type holder 421, and the upper L-type support 422 and lower L-type support 421 are distributed up and down along 42 axial direction of the guide rod, it is described
Upper L-type support 422 is connected by a conducting wire 45 with 44 upper end of the second cable protective layer protector, the lower L-type support 421 with
431 head end of a push rod on the pushing mechanism 43 is connected, and the lower end of second cable protective layer protector 44 is positioned at described
In the through-hole opened up on fixed bottom plate 1, and an earth lead is connected in the lower end of second cable protective layer protector 44
441, the second cable protective layer protector 44 is fixed at fixation by a holder (to keep attached drawing clear, being not drawn into attached drawing)
On bottom plate 1, the lower end of the second electric cable protector 44 is not contacted with fixed bottom plate 1；Guide rod 42 in practical applications one be to shield
Guiding role is played in the up and down motion of layer buttcover plate 423, but when original cable protective layer protector breaks down, it is responsible for
Electric current on cable sheath is drained on the second cable protective layer protector 44, in this embodiment will in view of the foregoing
Guide rod 42 is designed to be made of conducting rod 42 ' and insulating bar 42 ", and the conducting rod 42 ' is fixed at the insulating bar 42 "
On, the upper L-type support 422 is fixedly linked with the conducting rod 42 ', and upper L-type support 422 has conductive capability, the lower L
Type holder 421 is fixedly linked with the insulating bar 42 ", and there is lower L-type support 421 insulating capacity, above-mentioned guide rod 42 to design
The reason is that the second electric sheath cable protection device 44 of making provision against emergencies goes wrong, leads to circuit damage pushing mechanism, protected in the second cable
In the case that shield device 44 is excellent, electric current can be directly grounded by the earth lead 441 on the second cable protective layer protector 44.
The connection corresponding with the control circuit board 3 of the battery case 7, pushing mechanism 43 and current transformer 2；It pushes
Mechanism 43 is used for that guide rod 42 is driven to move up and down in practical applications, in the preset implementation, devises pushing mechanism 43
The first embodiment of two kinds of embodiments, pushing mechanism 43 is：The pushing mechanism 43 is an electric pushrod, push rod 431
Push rod as on electric pushrod entrained by itself, the pushing mechanism control unit in control circuit board 3 can control electronic push away
The stretching of bar and retraction；Because electric pushrod extending action is slower, to improve the stretching speed of push rod 431, pushed away here, devising
Second of specific embodiment of motivation structure 43：Pushing mechanism 43 is an electromagnetism push rod, and push rod 431 is itself on electromagnetism push rod
Entrained push rod.To ensure the smooth stretching of guide rod 42, it is mounted with a spring 6 in the bottom end of guide pipe 41, and spring 6 is set
It sets in the lower end of guide rod 42, when push rod 431 moves upwards, spring 6 being capable of the upward fortune of the promotion guide rod 42 of auxiliary push-rod 431
It is dynamic.
To ensure that staff can smoothly find the cable protective layer protector of failure, here, on fixed bottom plate 1
It is also provided with an audible-visual annunciator 5, the connection corresponding with the control circuit board 3 of the audible-visual annunciator 5, in audible-visual annunciator
Under the control of control unit, when over-current phenomenon avoidance occurs, audible-visual annunciator control unit can open audible-visual annunciator 5 and be reported
Alert, audible-visual annunciator 5 can also prompt surrounding masses alarm region beyond this point, so as to avoid an accident.
Current transformer 2 is nested on the ground path of cable protective layer protector, when monitored cable protective layer protector
When over-current phenomenon avoidance occurs, the current signal of induction is passed to control circuit board 3 by current transformer 2, and control circuit board 3 receives
After signal, second protection mechanism 2 and audible-visual annunciator 5 can be opened, meanwhile, over-current signal is transmitted to far by wireless network
Journey monitors terminal, is checked with prompting staff to carry out scene, in case preparing for subsequent maintenance.After repair is good, pass through
The transmittable instruction of remote monitoring terminal makes guide rod 42 return to original operating states, in case follow-up work is prepared.
It is the known technology of those skilled in the art in addition to the technical characteristic described in specification.
The above combination attached drawing is described above in detail the preferred embodiment of the present invention and embodiment, but the present invention is not
The above-described embodiment and examples are confined to, for those skilled in the art, are not departing from structure of the present invention
Under the premise of think of, several improvements and modifications can also be made, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of cable protective layer protector monitors system, including current transformer and remote monitoring terminal, characterized in that the monitoring
System further includes control circuit board, battery case, second protection mechanism and fixed bottom plate, the control circuit board and the long-range prison
Terminal is surveyed by the corresponding connection of wireless network, the control circuit board, battery case and second protection mechanism are arranged at described
On fixed bottom plate；
The second protection mechanism includes that activity docking holder, pushing mechanism and the second cable protective layer protector, the activity are right
It includes sheath buttcover plate and the guide rod that is arranged below sheath buttcover plate to connect holder, and the lower end of the guide rod is nested with leads one
Into pipe, and the guide pipe is fixed on the fixed bottom plate, is provided on the lateral wall of the guide rod opposite
Upper L-type support and lower L-type support, and the upper L-type support and lower L-type support along the guide rod axial direction up and down point
Cloth, the upper L-type support are connected by a conducting wire with second cable protective layer protector upper end, the lower L-type support and institute
The push rod head end stated on pushing mechanism is connected, and the lower end of second cable protective layer protector is located on the fixed bottom plate
In the through-hole opened up, and an earth lead is connected in the lower end of second cable protective layer protector；
The connection corresponding with the control circuit board of the battery case, pushing mechanism and current transformer；
The guide rod includes conducting rod and insulating bar, and the conducting rod is fixed on the insulating bar, the upper L-type branch
Frame is fixedly linked with the conducting rod, and there is upper L-type support conductive capability, the lower L-type support to be fixed with the insulating bar
It is connected, and lower L-type support 421 has insulating capacity.
2. cable protective layer protector according to claim 1 monitors system, characterized in that the sheath buttcover plate be one with
The arc panel that cable lateral wall matches.
3. cable protective layer protector according to claim 1 monitors system, characterized in that the sheath buttcover plate be one with
The type of the falling Ω elastic plate that cable lateral wall matches.
4. cable protective layer protector according to claim 1 monitors system, characterized in that the pushing mechanism is one electronic
Push rod.
5. cable protective layer protector according to claim 1 monitors system, characterized in that the pushing mechanism is an electromagnetism
Push rod.
6. cable protective layer protector according to claim 1 monitors system, characterized in that also set on the fixed bottom plate
Set an audible-visual annunciator, audible-visual annunciator connection corresponding with the control circuit board.
7. cable protective layer protector according to claim 6 monitors system, characterized in that the control circuit board includes electricity
Flow signal processing unit, pushing mechanism control unit and audible-visual annunciator control unit.
8. cable protective layer protector according to claim 1 monitors system, characterized in that set in the bottom end of the guide pipe
A spring is set, and the spring is located at the guide rod lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610487679.0A CN106199150B (en) | 2016-06-27 | 2016-06-27 | Cable protective layer protector monitors system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610487679.0A CN106199150B (en) | 2016-06-27 | 2016-06-27 | Cable protective layer protector monitors system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106199150A CN106199150A (en) | 2016-12-07 |
| CN106199150B true CN106199150B (en) | 2018-08-31 |
Family
ID=57462189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610487679.0A Active CN106199150B (en) | 2016-06-27 | 2016-06-27 | Cable protective layer protector monitors system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106199150B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111257690B (en) * | 2020-02-17 | 2022-02-18 | 广东电网有限责任公司 | Fault diagnosis and positioning method for cross-connection high-voltage cable sheath protector |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2039066U (en) * | 1988-05-28 | 1989-06-07 | 单让 | Protector and alarm for limiting excess current or voltage |
| CN2466669Y (en) * | 2001-02-19 | 2001-12-19 | 刘世春 | Multifunctional electric cable failure detector |
| CN203704981U (en) * | 2013-12-24 | 2014-07-09 | 浙江图维电力科技有限公司 | Cable operating state intelligent monitoring system |
| CN104965125A (en) * | 2015-06-25 | 2015-10-07 | 国网智能电网研究院 | Measuring system for cable accessory insulating material interface conductivity |
| CN104977513A (en) * | 2015-06-30 | 2015-10-14 | 国家电网公司 | High-voltage cable outer sheath insulation state on-line monitoring system and control method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2388482B (en) * | 2002-05-07 | 2005-06-15 | Alstom | Improved power line protection |
| WO2015143885A1 (en) * | 2014-03-28 | 2015-10-01 | 江苏省电力公司常州供电公司 | Power cable intelligent grounding box |
-
2016
- 2016-06-27 CN CN201610487679.0A patent/CN106199150B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2039066U (en) * | 1988-05-28 | 1989-06-07 | 单让 | Protector and alarm for limiting excess current or voltage |
| CN2466669Y (en) * | 2001-02-19 | 2001-12-19 | 刘世春 | Multifunctional electric cable failure detector |
| CN203704981U (en) * | 2013-12-24 | 2014-07-09 | 浙江图维电力科技有限公司 | Cable operating state intelligent monitoring system |
| CN104965125A (en) * | 2015-06-25 | 2015-10-07 | 国网智能电网研究院 | Measuring system for cable accessory insulating material interface conductivity |
| CN104977513A (en) * | 2015-06-30 | 2015-10-14 | 国家电网公司 | High-voltage cable outer sheath insulation state on-line monitoring system and control method thereof |
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| Publication number | Publication date |
|---|---|
| CN106199150A (en) | 2016-12-07 |
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