CN207114676U - The short circuit of EKL cable-types and earth-fault indicator - Google Patents
The short circuit of EKL cable-types and earth-fault indicator Download PDFInfo
- Publication number
- CN207114676U CN207114676U CN201621395134.9U CN201621395134U CN207114676U CN 207114676 U CN207114676 U CN 207114676U CN 201621395134 U CN201621395134 U CN 201621395134U CN 207114676 U CN207114676 U CN 207114676U
- Authority
- CN
- China
- Prior art keywords
- signal
- reset
- sensor
- cable
- short
- 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.)
- Active
Links
Landscapes
- Locating Faults (AREA)
Abstract
The utility model discloses a kind of short circuit of EKL cable-types and earth-fault indicator, belong to monitoring technical field.The fault detector includes main frame, short-circuit signal sensor and ground signalling sensor, and the main frame is connected with short-circuit signal sensor and ground signalling sensor by optical fiber；The main frame includes housing 1, the power supply being placed in inside housing 1 and logic judgment and control board；The logic judgment and control board include microprocessor, the microprocessor is connected to signal acquisition module, drive module and reset test module, the signal acquisition module is connected with short-circuit sensor, grounding sensor and voltage detection module respectively, the drive module is connected with signal lamp and binding post, and the reset test module is connected with reset test button.By the utility model without blindness line walking, trouble point can be accurately and real-time locked, saves substantial amounts of manpower financial capacity, operating efficiency is high.
Description
Technical field
The utility model belongs to monitoring technical field, and in particular to a kind of EKL cable-types short circuit and earth-fault indicator.
Background technology
At present, it is violent to the demand of electric power to be in all trades and professions such as the period of high speed development, industry, agricultural for China's economy
Increasing, excess load power supply turns into universal phenomenon caused by shortage of electric power, and consequence caused by excess load is powered is very serious, than
Such as cable short circuit, cause to have a power failure for a long time, or even trigger fire etc..In a power distribution system, short circuit is to match somebody with somebody with earth fault
The major failure of power network line, these failures impact to power system, cause a range of power failure.If in power train
Fail to check in time in system and be out of order and repaired, faulty equipment power off time will be greatly prolonged, reduce operational efficiency with supplying
Electric reliability.
The distribution automation system carried out at present does not carry out the monitoring of necessary parameter and state to cable outlet, causes event
Barrier is searched and operation maintenance personnel can not obtain necessary information from Surveillance center, and is relied primarily on artificial formula line walking paragraph by paragraph and searched,
The substantial amounts of time is not only wasted, and efficiency is low.
The content of the invention
In order to overcome deficiency of the prior art, the utility model provides a kind of EKL cable-types short circuit and earth fault
Indicator, without blindness line walking, trouble point can be accurately and real-time locked, judge whether power circuit occurs short circuit or ground connection
Failure is simultaneously alarmed, and saves substantial amounts of manpower financial capacity, and operating efficiency is high.
In order to achieve the above object, the technical solution adopted in the utility model is as follows：
A kind of EKL cable-types short circuit and earth-fault indicator, the fault detector include being arranged on distribution network system
Main frame in system, the short-circuit signal sensor in the single-phase branch of threephase cable and connecing in threephase cable bus
Earth signal sensor, the main frame are connected with short-circuit signal sensor and ground signalling sensor by optical fiber；
The main frame includes housing 1, the power supply being placed in inside housing 1 and logic judgment and control board；The housing 1
Front include control panel, the control panel includes reset test button 2, power storehouse 3, short-circuit signal indicator lamp 4, ground connection
Signal lamp 5, low-voltage signal indicator lamp 6, the reset test button 2 are located at the lower right of control panel, the power storehouse 3
Positioned at the upper right side of control panel, power supply is conveniently replaceable；
The back side of the housing 1 includes short-circuiting optical fiber interface, ground connection optical fiber interface and binding post；The short-circuiting optical fiber connects
Mouth is connected by optical fiber with short-circuit signal sensor, and the ground connection optical fiber interface is connected by optical fiber with ground signalling sensor；
The binding post includes communication interface, remote reset contact, fault-signal dry contact；The remote reset contact is used for will be multiple
Position signal is connected to DTU or resetted by rem ote reset button come control main frame, realizes remote reset；When indicator produces failure
During alarm indication signal, the fault-signal dry contact passes through magnetic latching relay-fault-signal directly is remained into answering for setting
Position time, alarm signal can guide to distant place distribution automation terminal equipment by wire.
Further, the power supply is 14505 lithium batteries.
Further, the minimum operating voltage of the main frame is 2.7V, and when operating voltage is less than 2.7V, low-voltage signal refers to
Show that lamp 6 flashes.
Further, the power supply is attached with logic judgment and control board.
Further, the logic judgment and control board include microprocessor, signal acquisition module, drive module,
Reset test module and voltage detection module, the microprocessor connect signal acquisition module, drive module and resetted and survey respectively
Die trial block, the signal acquisition module are connected with short-circuit sensor, grounding sensor and voltage detection module respectively, the driving
Module is connected with signal lamp and binding post, and the reset test module is connected with reset test button.
Further, after signal indicator sends alarm signal, the button of reset test button 2 on control panel is passed through
Manually release alarm within 1 second.
Further, after indicator sends alarm signal, if prosthetic is resetted, default resetting time is reached
Afterwards, signal indicator can be resetted automatically.
Further, the resetting time is four kinds of states, is 2h, 4h, 8h, 24h respectively, the resetting time can lead to
Toggle switch is crossed to be selected.
Further, the communication interface is that RS-485 communicates spare interface.
Beneficial effect：Compared with prior art, a kind of EKL cable-types short circuit provided by the utility model and earth fault refer to
Show that utensil has the advantage that：
1st, when line failure, without blindness line walking, you can accurately and real-time lock trouble point, judge power line
Whether road occurs short circuit or earth fault and is alarmed, and saves substantial amounts of manpower financial capacity, and operating efficiency is high；
2nd, there is the function of low pressure alarming, when operating voltage is less than 2.7V, the flicker of low-voltage signal indicator lamp 6 sends alarm
Signal；
3rd, have automatically reset function, after indicator sends alarm signal, if prosthetic is resetted, reach pre-
If resetting time after, indicator can be resetted automatically, and resetting time can set according to the time that user requires；
4th, reset signal is connected to by DTU by remote reset contact or resetted by rem ote reset button come control main frame,
Realize remote reset function；
5th, there is the function of remote alarm, when indicator produces fault alarm indication signal, fault-signal dry contact leads to
The resetting time of magnetic latching relay-directly remain to fault-signal setting is spent, alarm signal can guide to a distant place by wire and match somebody with somebody
Automation terminal device.
Brief description of the drawings
Fig. 1 is the utility model main frame front-panel structure schematic diagram；
Fig. 2 is the utility model main frame rear panel structure schematic diagram；
Fig. 3 is the utility model logic judgment and control circuit plate structure schematic diagram；
In figure：1- housings, 2- reset tests button, 3- power storehouses, 4- short-circuit signals indicator lamp, the instruction of 5- ground signallings
Lamp, 6- low-voltage signal indicator lamps.
Embodiment
The utility model is further elaborated with reference to the accompanying drawings and examples.
With reference to figure 1-3, a kind of EKL cable-types short circuit and earth-fault indicator, the fault detector include being arranged on
Main frame in distribution network system, the short-circuit signal sensor in the single-phase branch of threephase cable and installed in threephase cable
Ground signalling sensor in bus, the main frame are connected with short-circuit signal sensor and ground signalling sensor by optical fiber；
With reference to figure 1, the main frame includes housing 1, the power supply being placed in inside housing 1 and logic judgment and control board；
The front of the housing 1 includes control panel, and the control panel includes reset test button 2, power storehouse 3, short-circuit signal and referred to
Showing lamp 4, ground signalling indicator lamp 5, low-voltage signal indicator lamp 6, the reset test button 2 is located at the lower right of control panel,
The power storehouse 3 is located at the upper right side of control panel, is conveniently replaceable power supply；The power supply enters with logic judgment and control board
Row connection.
With reference to figure 2, the back side of the housing 1 includes short-circuiting optical fiber interface, ground connection optical fiber interface and binding post；It is described short
Road optical fiber interface is connected by optical fiber with short-circuit signal sensor, and the ground connection optical fiber interface is sensed by optical fiber and ground signalling
Device connects；The binding post includes communication interface, remote reset contact, fault-signal dry contact；The communication interface wiring
Terminal 7-10 is that RS-485 communicates spare interface；The remote reset contact binding post 11 and 12 is used to connect reset signal
Resetted to DTU or by rem ote reset button come control main frame, realize remote reset；The fault-signal dry contact binding post
L3, l4 pin are normally closed contact, and l3, l5 pin connect to be normally opened, when indicator produces fault alarm indication signal, the fault-signal
Dry contact binding post l3, l5 pin switchs to normally closed by normally opened, and is set by magnetic latching relay-directly remain to fault-signal
Fixed resetting time, alarm signal can guide to distant place distribution automation terminal equipment by wire.
With reference to figure 3, the logic judgment and control board include microprocessor, drive module, reset test module and
Voltage detection module, the microprocessor connect signal acquisition module, drive module and reset test module, the signal respectively
Acquisition module is connected with short-circuit sensor, grounding sensor and voltage detection module respectively, and the drive module is connected with signal
Indicator lamp and binding post, the reset test module are connected with reset test button.
After signal indicator sends alarm signal, by 2 button of reset test button on control panel 1 second come artificial
Release alarm.After indicator sends alarm signal, if prosthetic is resetted, after reaching default resetting time, signal
Indicator can be resetted automatically, be 2h, 4h, 8h, 24h respectively wherein the resetting time is four kinds of states, during the reset
Between can be selected by toggle switch.Control panel delay time has four kinds of states:Be respectively 40ms, 60ms, 80ms,
L60ms, it can be needed to be set before dispatching from the factory according to user, particular state is selected by toggle switch.
In the present embodiment, mechanical dimensions are：96mm (width) × 49mm (height) × 80mm (depth).The power supply is 14505 lithiums
Battery.The minimum operating voltage of the main frame is 2.7V, and when operating voltage is less than 2.7V, low-voltage signal indicator lamp 6 flashes, this
When can turn on the power storehouse 3 change power supply.
Alert operation principle：
Short-circuit alarming indicates：Short-circuit sensor detects the short circuit current of circuit at work, when short trouble occurs for circuit
When short circuit current when meeting or exceeding the setting valve of short circuit current, short-circuit sensor sends alarm signal, is transferred to by optical fiber
Main frame, main frame send order to signal indicator after signal acquisition module gathers alarm signal, by drive module, produce phase
The alarm indication signal answered.
Grounding alarm indicates：Grounding sensor detects the zero-sequence current of circuit at work, when earth fault occurs for circuit
When earth current when meeting or exceeding the setting valve of earth current, grounding sensor sends alarm signal, is transferred to by optical fiber
Main frame, main frame send order to signal indicator after signal acquisition module gathers alarm signal, by drive module, produce phase
The alarm indication signal answered.
Claims (9)
1. a kind of EKL cable-types short circuit and earth-fault indicator, it is characterised in that：The fault detector includes being arranged on and matched somebody with somebody
Main frame in electric network system, the short-circuit signal sensor in the single-phase branch of threephase cable and total installed in threephase cable
Ground signalling sensor on line, the main frame are connected with short-circuit signal sensor and ground signalling sensor by optical fiber；
The main frame includes housing (1), is placed in the internal power supply of housing (1) and logic judgment and control board；The housing
(1) front includes control panel, and the control panel includes reset test button (2), power storehouse (3), short-circuit signal instruction
Lamp (4), ground signalling indicator lamp (5), low-voltage signal indicator lamp (6), the reset test button (2) are located at the right side of control panel
Lower section, the power storehouse (3) are located at the upper right side of control panel, are conveniently replaceable power supply；
The back side of the housing (1) includes short-circuiting optical fiber interface, ground connection optical fiber interface and binding post；The short-circuiting optical fiber interface
It is connected by optical fiber with short-circuit signal sensor, the ground connection optical fiber interface is connected by optical fiber with ground signalling sensor；Institute
Stating binding post includes communication interface, remote reset contact, fault-signal dry contact；The remote reset contact is used to reset
Signal is connected to DTU or resetted by rem ote reset button come control main frame, realizes remote reset；When indicator produces fault alarm
During indication signal, when the fault-signal dry contact is by magnetic latching relay-fault-signal is directly remained to the reset of setting
Between, alarm signal can guide to distant place distribution automation terminal equipment by wire.
2. a kind of EKL cable-types short circuit according to claim 1 and earth-fault indicator, it is characterised in that：The electricity
Source is 14505 lithium batteries.
3. a kind of EKL cable-types short circuit according to claim 1 and earth-fault indicator, it is characterised in that：The master
The minimum operating voltage of machine is 2.7V, when operating voltage is less than 2.7V, low-voltage signal indicator lamp (6) flicker.
4. a kind of EKL cable-types short circuit according to claim 1 and earth-fault indicator, it is characterised in that：The electricity
Source is attached with logic judgment and control board.
5. a kind of EKL cable-types short circuit according to claim 1 and earth-fault indicator, it is characterised in that：It is described to patrol
Collecting judgement and control board includes microprocessor, signal acquisition module, drive module, reset test module and voltage detecting mould
Block, the microprocessor connect signal acquisition module, drive module and reset test module, the signal acquisition module point respectively
It is not connected with short-circuit sensor, grounding sensor and voltage detection module, the drive module is connected with signal lamp and connect
Line terminals, the reset test module are connected with reset test button.
6. a kind of EKL cable-types short circuit according to claim 1 and earth-fault indicator, it is characterised in that：Work as signal
After indicator sends alarm signal, alarm was manually released by reset test button (2) button on control panel 1 second.
7. a kind of EKL cable-types short circuit according to claim 1 and earth-fault indicator, it is characterised in that：Work as instruction
After device sends alarm signal, if prosthetic is resetted, after reaching default resetting time, signal indicator can be carried out automatically
Reset.
8. a kind of EKL cable-types short circuit according to claim 1 and earth-fault indicator, it is characterised in that：During reset
Between be four kinds of states, be 2h, 4h, 8h, 24h respectively, the resetting time can be selected by toggle switch.
9. a kind of EKL cable-types short circuit according to claim 1 and earth-fault indicator, it is characterised in that：It is described logical
Communication interface is that RS-485 communicates spare interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621395134.9U CN207114676U (en) | 2016-12-19 | 2016-12-19 | The short circuit of EKL cable-types and earth-fault indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621395134.9U CN207114676U (en) | 2016-12-19 | 2016-12-19 | The short circuit of EKL cable-types and earth-fault indicator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207114676U true CN207114676U (en) | 2018-03-16 |
Family
ID=61596183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621395134.9U Active CN207114676U (en) | 2016-12-19 | 2016-12-19 | The short circuit of EKL cable-types and earth-fault indicator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207114676U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108983031A (en) * | 2018-09-05 | 2018-12-11 | 安徽康能电气有限公司 | A kind of electrical cable intelligent type fault detector based on RF wireless communication |
| CN110398614A (en) * | 2019-08-02 | 2019-11-01 | 浙江帕博电力科技有限公司 | A kind of temperature measuring type fault detector that can be achieved stablize to route clamping |
-
2016
- 2016-12-19 CN CN201621395134.9U patent/CN207114676U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108983031A (en) * | 2018-09-05 | 2018-12-11 | 安徽康能电气有限公司 | A kind of electrical cable intelligent type fault detector based on RF wireless communication |
| CN110398614A (en) * | 2019-08-02 | 2019-11-01 | 浙江帕博电力科技有限公司 | A kind of temperature measuring type fault detector that can be achieved stablize to route clamping |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106451794A (en) | Storage battery leaving direct-current bus monitoring alarm device and method | |
| CN210534282U (en) | Intelligent diagnosis instrument for oil pumping unit pump | |
| CN107290676A (en) | A kind of batteries main fuse fusing and open circuit detection method and device | |
| CN207114676U (en) | The short circuit of EKL cable-types and earth-fault indicator | |
| CN109980782B (en) | Wireless monitoring detector and system for safe operation of power transmission and distribution line | |
| CN201133923Y (en) | Kinetic cell short circuit checking machine | |
| CN207234522U (en) | A kind of complete switch equipment open circuit limits mechanism | |
| CN204287418U (en) | A kind of circuit breaker switch state pick-up unit | |
| CN105865532A (en) | Monitoring and alarming system for transformer substation secondary system TMOV lightning arrester main board | |
| CN205829307U (en) | A kind of intelligent and safe distributing monitoring system | |
| CN209264153U (en) | A kind of intelligent temperature measurement on-line indicating fault integration unit of new E KL-W | |
| CN105762906B (en) | A kind of valve Room operation platform cart intelligent charger and method | |
| CN208256069U (en) | A kind of safety ground monitoring alarm with multichannel | |
| CN207557400U (en) | A kind of low voltage failure circuit investigates instrument | |
| CN206648750U (en) | A kind of high ferro cable and junction malfunction warning device being wirelessly transferred with self-powered | |
| CN110426625A (en) | A kind of computer operation case for substation | |
| CN207459754U (en) | A kind of charging management system of lithium battery | |
| CN203054156U (en) | Power distribution network single phase grounding fault positioning device based on direct current signal detector | |
| CN206096233U (en) | Platform district residual current monitoring alarm device | |
| CN208092163U (en) | A kind of EKL5-D-Q novel cables type accident indicator | |
| CN101359030A (en) | Earthing discrimination, monitor and alarm unit for electrical power system in substation | |
| CN211698045U (en) | Electric line insulation detection auxiliary device | |
| CN107317715A (en) | A kind of equipment condition monitoring instrument | |
| CN209088622U (en) | A kind of low-voltage network path monitoring equipment | |
| CN209495435U (en) | A kind of air conditioner in machine room water-leakage detecting system comprising burn out detection and alarm test |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |