CN106124926A - Outdoor signal source device on a kind of post - Google Patents
Outdoor signal source device on a kind of post Download PDFInfo
- Publication number
- CN106124926A CN106124926A CN201610422980.3A CN201610422980A CN106124926A CN 106124926 A CN106124926 A CN 106124926A CN 201610422980 A CN201610422980 A CN 201610422980A CN 106124926 A CN106124926 A CN 106124926A
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- CN
- China
- Prior art keywords
- post
- source device
- signal source
- casing tube
- fault
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- 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
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/086—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution networks, i.e. with interconnected conductors
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Locating Faults (AREA)
Abstract
The present invention provides outdoor signal source device on a kind of post, including housing and stretch out the entrance bushing outside described housing and outlet casing tube, described entrance bushing is connected with the line bus in distribution network, described outlet casing tube is connected with the earth lead in distribution network, two phase contacts and the resistor being connected with described catalyst and the current transformer being enclosed within outlet casing tube are installed in described housing, after distribution network produces singlephase earth fault, the described catalyst that Earth Phase occurs closes a floodgate, and constitutes loop with described resistor and described outlet casing tube.On the post that the present invention provides, outdoor signal source device has the beneficial effect that the present invention uses the principle of signal pouring-in detection signal, it is uniquely not affected by system operation mode, topological structure, neutral grounding mode and fault random factor etc., need not set threshold value to fault detector, the method actively sending signal detection singlephase earth fault after there is singlephase earth fault.
Description
Technical field
The present invention relates to outdoor signal source device on a kind of post.
Background technology
China's distribution line is intricate, and transmission line of electricity mostly is overhead transmission line, especially in mountain area, and overhead transmission line
It is exposed in air, and has suitable height.Under the environment such as harsh weather (rain, snow, mist, thunder), easily there is insulation damages,
Result in the faults such as single-phase earthing, and because of overhead transmission line length, distance ground height, bad environments (as through high mountain jungle), make
Obtain fault and there is disguise, it is difficult to quickly and accurately find out trouble point.Sometimes have to by the way of trial line charging is operated a switch in segmentation
Determining where fault occurs, the seriality, the safety that run circuit, equipment are the most unfavorable.
Although there being the fault detector being hung on cable at present, coordinating built on stilts remote signalling terminal to identify fault, but it detects
Principle is all passive detection, the change of power distribution network parameter before and after dependence generation singlephase earth fault.And produced by earthed system
Earth-fault signal itself is more weak, when by electromagnetic interference and harmonic pollution, making distorted signals, affects the choosing of fault detector
Selecting property and accuracy, lose the accuracy implemented in time service.
Therefore, the signal source that can actively send signal detection singlephase earth fault that a principle adapts is researched and developed with system
Device, to improve the selectivity of singlephase earth fault indicator, accuracy and reliability, is that particularly important and urgent market needs
Ask.
Summary of the invention
The technical problem to be solved is to overcome the deficiency of above-mentioned prior art, it is provided that outdoor letter on a kind of post
Number source device.
According to the present invention provide a kind of post on outdoor signal source device use main technical schemes be: include housing with
And stretching out the entrance bushing outside described housing and outlet casing tube, described entrance bushing is connected with the line bus in distribution network
Connecing, described outlet casing tube is connected with the earth lead in distribution network.Be provided with in described housing two phase contacts and with institute
Stating the resistor that catalyst is connected and the current transformer being enclosed within outlet casing tube, distribution network produces singlephase earth fault
After, occur the described catalyst of Earth Phase to close a floodgate, constitute loop with described resistor and described outlet casing tube.Return described ground connection
Load pulses sequence in road, produces a low frequency Injection Signal, and the fault detector in distribution network detects that this low frequency injects
Overturn after signal, indicating concurrent send has singlephase earth fault at this earth-return circuit.
On the post that the present invention provides, outdoor signal source device also can have a following attached technical characteristic:
Being provided with the first connection row and second on described resistor and connect row, described first connects row and described catalyst phase
Connecting, described second connects row is connected with described outlet casing tube.
Described current transformer is arranged on described outlet casing tube and is connected with described second on the connection line of row.
Being provided with the 3rd connection row on described catalyst, the described 3rd connects row is connected with described entrance bushing.
It is provided with explosion-protection equipment on described housing.
It is provided with installing rack on described housing.
Aviation socket, described aviation socket and the aviation plug phase on outside source controller it is provided with on described housing
Connect.
Described shell is filled with sulfur hexafluoride gas.
What on the post that the employing present invention provides, outdoor signal source device brought has the beneficial effect that family on the post that the present invention provides
The operation principle of external signal source device is the principle of signal pouring-in detection signal, is unique not by system operation mode, topology
The impact of structure, neutral grounding mode and fault random factor etc., it is not necessary to set threshold value to fault detector,
The method actively sending signal detection singlephase earth fault after there is singlephase earth fault；
On the post that the present invention provides, the housing of outdoor signal source device is to select 304 rustless steels, with weldering after rushing reinforcement
Connecing and form, mechanical strength is high, good looking appearance, has anticorrosive and antioxidation；It is applicable to small current neutral grounding and through arc blowout wire
The singlephase earth fault location of circle earthed system and route selection.Compact conformation, volume is little, lightweight, and economy is high；Range of application
Extensively, i.e. in addition to can apply to city net, the extension of rural power grids and transformation, also can be widely used to open air, highlands and environment
Compare the Special use occasions such as severe, the most seriously polluted, do not affected by external environment such as condensation, filth, chemical substance etc..It can be city
Net, rural power grids and transformer substation construction and transformation provide a kind of gas-insulated fault locator, coordinate my company's fault detector structure
Become complete fault location system, accurately find and location fault, transmission fault message.
Accompanying drawing explanation
Fig. 1 is the cut-away view of outdoor signal source device on post of the present invention.
Fig. 2 is the side view of outdoor signal source device on post of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawings the present invention is described in further detail:
As shown in Figure 1 to Figure 2, according to the embodiment of outdoor signal source device on a kind of post that the present invention provides, including shell
Body 1 and stretch out the entrance bushing 2 outside described housing 1 and outlet casing tube 3, described entrance bushing 2 outlet casing tube and distribution network
In line bus be connected, described outlet casing tube 3 is connected with the earth lead in distribution network, is provided with in described housing 1
Two phase contacts 4 and the resistor 5 being connected with described catalyst 4 and the current transformer 6 being enclosed within outlet casing tube 3, join
After electric network produces singlephase earth fault, the described catalyst 4 of Earth Phase is occurred to close a floodgate, with described resistor 5 and outlet casing tube 3
Constitute loop, load pulses sequence in described earth-return circuit, produce a low frequency Injection Signal, so, bus and ground connection
Between point except ground connection produce capacity current and arc suppression coil inductance current (system has arc suppression coil) in addition to, also one by
The special low frequency signal that signal source controller produces flows through, and the fault detector in distribution network detects that this low frequency injects letter
Overturn after number, indicating concurrent send has singlephase earth fault at this earth-return circuit, and described catalyst 4 is provided with mechanical electric locking
Device, this is mechanically and electrically not shown in blocking device figure, and trouble point is that last is reported to the police and first fault do not reported to the police
Between indicator；Rather than the ungrounded part of Earth Phase, ungrounded feeder line and earth connection will not overturn and transmission information.
The principle that operation principle is signal pouring-in detection signal of outdoor signal source device on the post that the present invention provides, be
Uniquely do not affected by system operation mode, topological structure, neutral grounding mode and fault random factor etc., it is not necessary to
Set threshold value to fault detector, after there is singlephase earth fault, actively send the side of signal detection singlephase earth fault
Method.
Owing to when there is single-phase earthing, signal source controller is connect by the adhesive of the catalyst of automatic switching in systems
Enter a resistor 5, the condition of resonance occurred when changing ground connection, which decrease the amplitude of now overvoltage, reduce
The interference of the distinctive signal sending signal source, adds accuracy and the selection of fault detector detection singlephase earth fault
Property.It is also possible to do line-selected earthing device.At unattended operation transformer station, directly ground signalling can be passed to control centre.
It addition, signal source controller has retransmitting function, again can be signaled by artificial or remote control, to ensure that fault detector more may be used
Lean on, action accurately.Finally solve on-the-spot problem in the urgent need to address: improve the selection of singlephase earth fault indicator
Property, accuracy, reliability.
See Fig. 1 to Fig. 2, according to outdoor signal source device on the post that the present invention provides, described resistor 5 is provided with the
One connects row 7 and second connects row 8, and described first connects row 7 is connected with described catalyst 4, and described second connects row 8 and institute
Stating outlet casing tube 3 to be connected, described current transformer 6 is arranged on described outlet casing tube 3 and is connected the connecting line of row 8 with described second
Lu Shang, described catalyst 4 is provided with the 3rd connection row 9, and the described 3rd connects row 9 is connected with described entrance bushing 2, described
It is provided with explosion-protection equipment 10 on housing 1, described housing 1 is provided with installing rack 11, described housing 1 is provided with aviation socket
12, described aviation socket 12 is connected with the aviation plug on outside source controller.Outdoor letter on the post that the present invention provides
The housing 1 of number source device is to select 304 rustless steels, and with being welded after rushing reinforcement, mechanical strength is high, good looking appearance, has
There is anticorrosive and antioxidation；It is applicable to the small current neutral grounding of 6～10kV electric pressures and compensated distribution network
Singlephase earth fault location and route selection.Compact conformation, volume is little, lightweight, and economy is high；Applied range, i.e. except permissible
It is applied to outside city net, the extension of rural power grids and transformation, also can be widely used to that open air, highlands and environment are relatively severe, pollute
Seriously wait Special use occasion, do not affected by external environment such as condensation, filth, chemical substance etc..Can be city net, rural power grids and power transformation
Stand and build and a kind of gas-insulated fault locator of transformation offer, coordinate my company's fault detector to constitute complete fault and determine
Position system, accurately finds and location fault, transmission fault message.
See Fig. 1 to Fig. 2, according to outdoor signal source device on the post that the present invention provides, be filled with lithium in described housing 1
Sulfur gas, to realize the reliable insulation between the internal electric elements of housing 1.
Embodiment described above, the simply one of the present invention more preferably detailed description of the invention, those skilled in the art
The usual variations and alternatives that member is carried out in the range of technical solution of the present invention all should comprise within the scope of the present invention.
Claims (8)
1. an outdoor signal source device on post, including housing and stretch out the entrance bushing outside described housing and outlet casing tube,
Described entrance bushing is connected with the line bus in distribution network, and described outlet casing tube is connected with the earth lead in distribution network
Connect.It is characterized in that: resistor that two phase contacts are connected with described catalyst is installed in described housing and is enclosed within outlet
Current transformer on sleeve pipe, after distribution network produces singlephase earth fault, occurs the described catalyst of Earth Phase to close a floodgate, with institute
State resistor and described outlet casing tube constitutes loop.Load pulses sequence in described loop, produces a low frequency Injection Signal,
Fault detector in distribution network this low frequency Injection Signal detected after overturn, indicating concurrent send have at this earth-return circuit single-phase
Earth fault.
Outdoor signal source device on post the most according to claim 1, it is characterised in that: it is provided with first on described resistor
Connecting row and second and connect row, described first connects row is connected with described catalyst, and described second connects row and described outlet
Sleeve pipe is connected.
Outdoor signal source device on post the most according to claim 2, it is characterised in that: described current transformer is arranged on institute
State outlet casing tube to be connected with described second on the connection line of row.
Outdoor signal source device on post the most according to claim 1 and 2, it is characterised in that: it is provided with on described catalyst
3rd connects row, and the described 3rd connects row is connected with described entrance bushing.
Outdoor signal source device on post the most according to claim 1, it is characterised in that: it is provided with explosion-proof dress on described housing
Put.
Outdoor signal source device on post the most according to claim 1, it is characterised in that: it is provided with installation on described housing
Frame.
Outdoor signal source device on post the most according to claim 1, it is characterised in that: it is provided with aviation on described housing and inserts
Seat, described aviation socket is connected with the aviation plug on outside source controller.
Outdoor signal source device on post the most according to claim 1, it is characterised in that: described shell is filled with sulfur hexafluoride
Gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610422980.3A CN106124926B (en) | 2016-06-15 | 2016-06-15 | Outdoor signal source device on a kind of column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610422980.3A CN106124926B (en) | 2016-06-15 | 2016-06-15 | Outdoor signal source device on a kind of column |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106124926A true CN106124926A (en) | 2016-11-16 |
| CN106124926B CN106124926B (en) | 2018-10-12 |
Family
ID=57270620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610422980.3A Active CN106124926B (en) | 2016-06-15 | 2016-06-15 | Outdoor signal source device on a kind of column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106124926B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110703133A (en) * | 2019-10-15 | 2020-01-17 | 北京科锐配电自动化股份有限公司 | Outdoor signal source device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US6184689B1 (en) * | 1999-01-21 | 2001-02-06 | H. J. Arnett Industries | Secondary service conductor tester |
| JP3400365B2 (en) * | 1998-11-18 | 2003-04-28 | 光商工株式会社 | Ground fault directional relay |
| CN202362415U (en) * | 2011-11-02 | 2012-08-01 | 河南省电力公司信阳供电公司 | Low current single-phase grounding fault route selection and positioning device |
| CN102891448A (en) * | 2012-11-07 | 2013-01-23 | 北京科锐配电自动化股份有限公司 | Gas insulation indoor switch cabinet |
| CN203014360U (en) * | 2012-12-20 | 2013-06-19 | 诸暨市供电局 | On-line circuit fault monitoring and protecting device |
| CN205786741U (en) * | 2016-06-15 | 2016-12-07 | 北京科锐博实电气设备有限公司 | Outdoor signal source device on a kind of post |
-
2016
- 2016-06-15 CN CN201610422980.3A patent/CN106124926B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3400365B2 (en) * | 1998-11-18 | 2003-04-28 | 光商工株式会社 | Ground fault directional relay |
| US6184689B1 (en) * | 1999-01-21 | 2001-02-06 | H. J. Arnett Industries | Secondary service conductor tester |
| CN202362415U (en) * | 2011-11-02 | 2012-08-01 | 河南省电力公司信阳供电公司 | Low current single-phase grounding fault route selection and positioning device |
| CN102891448A (en) * | 2012-11-07 | 2013-01-23 | 北京科锐配电自动化股份有限公司 | Gas insulation indoor switch cabinet |
| CN203014360U (en) * | 2012-12-20 | 2013-06-19 | 诸暨市供电局 | On-line circuit fault monitoring and protecting device |
| CN205786741U (en) * | 2016-06-15 | 2016-12-07 | 北京科锐博实电气设备有限公司 | Outdoor signal source device on a kind of post |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110703133A (en) * | 2019-10-15 | 2020-01-17 | 北京科锐配电自动化股份有限公司 | Outdoor signal source device |
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| Publication number | Publication date |
|---|---|
| CN106124926B (en) | 2018-10-12 |
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Effective date of registration: 20210326 Address after: 101499 No.3, Longyun Road, Beifang Town, Huairou District, Beijing Patentee after: CREATIVE BOHUA ELECTRICAL EQUIPMENT Co.,Ltd. Address before: No. 76, Hengli street, Beifang Town, Huairou District, Beijing Patentee before: BEIJING KERUI BOSHI ELECTRICAL EQUIPMENT Co.,Ltd. |
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