CN106019049A - Auxiliary device for DC grounding search of transformer station - Google Patents
Auxiliary device for DC grounding search of transformer station Download PDFInfo
- Publication number
- CN106019049A CN106019049A CN201610335768.3A CN201610335768A CN106019049A CN 106019049 A CN106019049 A CN 106019049A CN 201610335768 A CN201610335768 A CN 201610335768A CN 106019049 A CN106019049 A CN 106019049A
- Authority
- CN
- China
- Prior art keywords
- air switch
- casing
- grounding
- electrically connected
- pair
- 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.)
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention relates to an auxiliary device for DC grounding search of a transformer station, and belongs to the technical field of transformer station DC systems. The auxiliary device comprises a casing, an air switch and a grounding condition monitoring lamp, the air switch is fixedly mounted on the casing, the two ends of the casing are provided with an input hole and an output hole respectively, a grounding clamp is arranged at one side of the casing, the input end of the air switch is electrically connected with a pair of insulated wire clamps, which penetrates the input hole and positioned outside the casing, via leads, the output end of the air switch is electrically connected with a pair of insulated pins, which penetrates the output hole and positioned outside the casing, via leads, and the grounding condition monitoring clamp positioned on the casing is electrically connected between the air switch and the pair of insulated pins. The auxiliary structure is reasonable and compact in structure, simple in operation and high in efficiency, a grounded branch in a DC bus can be determined rapidly, time that the DC system operates with faults is shortened, production cost of an enterprise is reduced, and the power supply reliability and the economical benefit of the enterprise are improved.
Description
Technical field
The present invention relates to transformer station direct current system technical field, be a kind of transforming plant DC earthing searching auxiliary device.
Background technology
Transformer station direct current system refer to the signalling arrangement in transformer station, protection, automaton, emergency lighting and chopper divide, closing operation provide DC source system.If transforming plant DC breaks down very big to whole power system, the safe operation of grid equipment and power supply controllability impact, large-area power-cuts even can be caused.The most common DC system fault is DC earthing; if processing DC ground fault the most in time; second protection automaton malfunction or tripping in station can be caused; chopper that the tripping of mistake is not broken down or the chopper that refusal tripping is broken down, causing large-area power-cuts or the damage equipment of tripping operation of bypassing the immediate leadership.
Summary of the invention
The invention provides a kind of transforming plant DC earthing searching auxiliary device; overcome the deficiency of above-mentioned prior art; it can effectively solve to process the most in time DC ground fault; cause second protection automaton malfunction or tripping in station; chopper that the tripping of mistake is not broken down or the chopper that refusal tripping is broken down, causing large-area power-cuts or the problem of damage equipment of tripping operation of bypassing the immediate leadership.
The technical scheme is that and realized by following measures: a kind of transforming plant DC earthing searching auxiliary device, including housing, air switch, Grounding monitors lamp, it is characterized in that: fixedly mount having air switch on the housing, housing be respectively arranged at two ends with input hole and delivery outlet, the side of housing is provided with earth clip, the input of air switch is electrically connected with through input hole a pair insulating clamp being positioned at hull outside by wire, the outfan of air switch is electrically connected with through delivery outlet by wire and is positioned at a pair of hull outside insulation contact pin, it is electrically connected with, between air switch and a pair insulation contact pin, the Grounding being positioned on housing and monitors lamp.
Further optimization and/or improvements to foregoing invention technical scheme are presented herein below:
Above-mentioned
Air switch is the air switch of band DC leakage protector
。
Present configuration is reasonable and compact, simple to operate, and efficiency is high, and it can quickly judge the branch road to the ground connection on dc bus, shortens the time that straight-flow system operates with failure, has saved the production cost of enterprise, improve the economic benefit of power supply reliability and enterprise.
Accompanying drawing explanation
Accompanying drawing 1 is the overall structure schematic diagram of preferred embodiment.
Accompanying drawing 2 is the circuit theory diagrams of the present invention.
It is shell that coding in accompanying drawing is respectively as follows: 1, and 2 is that Grounding monitors lamp, and 3 is air switch, and 4 is input hole, 5 is earth clip, and 6 is delivery outlet, and 7 is insulating clamp, and 8 is insulation contact pin, 9 is dc bus I, and 10 is dc bus II, and 11 is branch road, and 12 is terminal block.
Detailed description of the invention
The present invention is not limited by following embodiment, can determine specific embodiment according to technical scheme and practical situation.
Below in conjunction with embodiment and accompanying drawing, the invention will be further described:
As shown in Figure 1, this transforming plant DC earthing searching auxiliary device includes housing 1, Grounding monitors lamp 2, air switch 3, housing 1 fixedly mounts having air switch 3, it is respectively arranged at two ends with input hole 4 and delivery outlet 6 at housing 1, the side of housing 1 is provided with earth clip 5, the input of air switch 3 is electrically connected with through input hole 4 a pair insulating clamp 7 of being positioned at hull outside by wire, the outfan of air switch 3 is electrically connected with through delivery outlet 6 by wire and is positioned at a pair insulation contact pin 8 outside housing 1, it is electrically connected with, between air switch 3 and a pair insulation contact pin 8, the Grounding being positioned on housing and monitors lamp 2.
According to actual needs above-mentioned transforming plant DC earthing searching auxiliary device can be made further optimization and/or improvements:
As shown in Figure 1, air switch 3 is the air switch of band DC leakage protector.
Above technical characteristic constitutes highly preferred embodiment of the present invention, and it has stronger adaptability and optimal implementation result, can increase and decrease non-essential technical characteristic according to actual needs, meet the demand of different situations.
nullThe use process of preferred embodiment: when straight-flow system generation DC ground fault，First，Earth clip 5 on housing 1 is clipped on ground connection bronze medal，Then a pair insulating clamp 7 through input hole 4 is connected with positive pole and the negative pole of the dc bus II 10 that earth fault does not occurs respectively，A pair insulation contact pin 8 through delivery outlet 6 is inserted respectively in the positive supply of some branch road 11 on the dc bus I 9 that DC earthing occurs and the terminal block 12 of negative supply，After determining that circuit connection is correct，Close air switch 3，The disconnected branches 11 air switch on DC feeder screen，Now the power supply of this branch road 11 is that an other dc bus II 10 is powered，All original papers on branch road 11 will not dead electricity，Observe Grounding and monitor lamp 2，Grounding monitors that lamp does not works，Judge that this branch road 11 occurs ground connection.Thus quickly judge the branch road to the ground connection on dc bus, shorten the time that straight-flow system operates with failure, saved the production cost of enterprise, improve the economic benefit of power supply reliability and enterprise.
Claims (2)
1. a transforming plant DC earthing searching auxiliary device, it is characterized in that: include housing, air switch, Grounding monitors lamp, fixedly mount having air switch on the housing, housing be respectively arranged at two ends with input hole and delivery outlet, the side of housing is provided with earth clip, the input of air switch is electrically connected with through input hole a pair insulating clamp being positioned at hull outside by wire, the outfan of air switch is electrically connected with through delivery outlet by wire and is positioned at a pair of hull outside insulation contact pin, it is electrically connected with, between air switch and a pair insulation contact pin, the Grounding being positioned on housing and monitors lamp.
Transforming plant DC earthing searching auxiliary device the most according to claim 1, it is characterised in that: described air switch is the air switch of band DC leakage protector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610335768.3A CN106019049A (en) | 2016-05-19 | 2016-05-19 | Auxiliary device for DC grounding search of transformer station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610335768.3A CN106019049A (en) | 2016-05-19 | 2016-05-19 | Auxiliary device for DC grounding search of transformer station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106019049A true CN106019049A (en) | 2016-10-12 |
Family
ID=57095507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610335768.3A Pending CN106019049A (en) | 2016-05-19 | 2016-05-19 | Auxiliary device for DC grounding search of transformer station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106019049A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106707083A (en) * | 2016-12-28 | 2017-05-24 | 国家电网公司 | Substation direct current grounding detecting device |
| CN106940390A (en) * | 2017-02-14 | 2017-07-11 | 国网新疆电力公司伊犁供电公司 | Straight-flow system Insulation monitoring switching device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02309268A (en) * | 1989-05-24 | 1990-12-25 | Showa Electric Wire & Cable Co Ltd | Apparatus for searching ground fault point |
| JP2007057319A (en) * | 2005-08-23 | 2007-03-08 | Tokyo Electric Power Co Inc:The | Ground fault position detection system |
| CN101452034A (en) * | 2007-11-30 | 2009-06-10 | 上海市电力公司超高压输变电公司 | Portable intelligent DC earthing searching instrument |
| CN201917627U (en) * | 2010-11-29 | 2011-08-03 | 陕西柯蓝电子有限公司 | Portable direct-current grounding fault searching instrument |
| CN102636721A (en) * | 2012-04-18 | 2012-08-15 | 孟州市电力公司 | Ground fault detector for power transmission line |
| CN103094979A (en) * | 2013-02-28 | 2013-05-08 | 绥化电业局 | Standby power for electric system direct current grounding line checking |
| CN204789865U (en) * | 2015-05-19 | 2015-11-18 | 国家电网公司 | Testing arrangement is assisted in route selection of direct current ground connection |
| CN205786938U (en) * | 2016-05-19 | 2016-12-07 | 国网新疆电力公司伊犁供电公司 | Transforming plant DC earthing searching auxiliary device |
-
2016
- 2016-05-19 CN CN201610335768.3A patent/CN106019049A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02309268A (en) * | 1989-05-24 | 1990-12-25 | Showa Electric Wire & Cable Co Ltd | Apparatus for searching ground fault point |
| JP2007057319A (en) * | 2005-08-23 | 2007-03-08 | Tokyo Electric Power Co Inc:The | Ground fault position detection system |
| CN101452034A (en) * | 2007-11-30 | 2009-06-10 | 上海市电力公司超高压输变电公司 | Portable intelligent DC earthing searching instrument |
| CN201917627U (en) * | 2010-11-29 | 2011-08-03 | 陕西柯蓝电子有限公司 | Portable direct-current grounding fault searching instrument |
| CN102636721A (en) * | 2012-04-18 | 2012-08-15 | 孟州市电力公司 | Ground fault detector for power transmission line |
| CN103094979A (en) * | 2013-02-28 | 2013-05-08 | 绥化电业局 | Standby power for electric system direct current grounding line checking |
| CN204789865U (en) * | 2015-05-19 | 2015-11-18 | 国家电网公司 | Testing arrangement is assisted in route selection of direct current ground connection |
| CN205786938U (en) * | 2016-05-19 | 2016-12-07 | 国网新疆电力公司伊犁供电公司 | Transforming plant DC earthing searching auxiliary device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106707083A (en) * | 2016-12-28 | 2017-05-24 | 国家电网公司 | Substation direct current grounding detecting device |
| CN106940390A (en) * | 2017-02-14 | 2017-07-11 | 国网新疆电力公司伊犁供电公司 | Straight-flow system Insulation monitoring switching device |
| CN106940390B (en) * | 2017-02-14 | 2023-08-08 | 国网新疆电力公司伊犁供电公司 | Insulation detection switching device of direct current system |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161012 |