CN204925293U - Power line error detection device - Google Patents
Power line error detection device Download PDFInfo
- Publication number
- CN204925293U CN204925293U CN201520530501.0U CN201520530501U CN204925293U CN 204925293 U CN204925293 U CN 204925293U CN 201520530501 U CN201520530501 U CN 201520530501U CN 204925293 U CN204925293 U CN 204925293U
- Authority
- CN
- China
- Prior art keywords
- generator
- stepup transformer
- rectifier
- voltage
- output terminal
- 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.)
- Expired - Fee Related
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
Landscapes
- Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
Abstract
The utility model discloses a power line error detection device, including power supply generator and fault current detector, power supply generator includes generator, voltage regulator, stepup transformer, rectifier, ampere meter and voltmeter, and the dynamo output end is connected with the voltage regulator input, and the voltage regulator output is connected with the stepup transformer input, and a stepup transformer output is connected with the rectifier positive pole through the ampere meter, and the rectifier negative pole is power supply generator's first output, and another output of stepup transformer is power supply generator's second output, the fault current detector is clip on ammeter. The special wireless nursing assisting device is reasonable in design, simple in structure, and easy to manufacture. It follows line detection add electric current and voltage numerical value with in being tried power line or equipment through the fault current detector as power input, the suitable voltage that voltage regulator and stepup transformer provided with the generator, determines fault type and fault point position, can accurate judgement seek earth fault and short -circuit fault.
Description
Technical field
The utility model relates to distribution line failure and judges and search equipment technical field, is specifically related to feeder line fault and searches device.
Background technology
Power circuit spreads over all parts of the country, and it has, and distributed areas are wide, transmission range is long, complicated topographical conditions is changeable, affect the features such as large by amblent air temperature.Electric energy belongs to one of important energy of China, solve the nervous problem of electric power supply, and we just must pay much attention to the safety of power distribution network and stablize.
When electrical network is short-circuited fault, power circuit is stopped power supply at once; When power distribution network generation singlephase earth fault, power circuit also can through stopping power supply after a while.In order to find fault, must check the power circuit of stopping power supply, the most traditional method is that electrical employee adopts observation method of naked eye.There is a lot of defect in prior art, be first that manual patrol workload is large, the tour time is long, in addition after some insulator generation problem, naked eyes cannot judge at all, so manual patrol trouble spot, and cannot failure judgement type.It can thus be appreciated that carry out looking up the fault with artificial inspection method, fault handling time is long, labor intensive, material resources are many.
Summary of the invention
The purpose of this utility model is exactly the defect existed for prior art, provides feeder line fault to search device.
Its technical scheme is: feeder line fault searches device, comprise the fault current detection device of power source generator and the hand-hold movable be fixedly installed, described power source generator comprises generator, pressure regulator, stepup transformer, rectifier, reometer and voltage table, the output terminal of described generator is connected with the input end of pressure regulator, the output terminal of pressure regulator is connected with the input end of stepup transformer, one output terminal of stepup transformer is connected with the positive pole of rectifier by reometer, the negative pole of rectifier is the first output terminal of power source generator, another output terminal of stepup transformer is the second output terminal of power source generator, described voltage table is connected in parallel on the output terminal of generator, described fault current detection device is clamp on amperemeter.
Wherein, described rectifier two ends are connected in parallel a shorting switch.Described rectifier is high voltage silicon rectifier stack, and it is withstand voltage is greater than 10kV, and rated current is greater than 1A.Described generator is the genset driven by machine power, and its output voltage is interchange 110-380V, and output power is more than or equal to 10kVA.Described pressure regulator is induction voltage regulator or is automatic coupling voltage regulator, and its capacity is more than or equal to 10kVA.Described stepup transformer is ac step-up transformer, and its capacity is more than or equal to 10kVA.
Compared with prior art, its beneficial effect had is the utility model: reasonable in design, structure simply, easily makes.It inputs as energy with generator, the suitable voltage that pressure regulator and stepup transformer provide is added on tested power circuit or equipment, by fault current detection device along electric current and voltage value added by wireline inspection, come failure judgement type and position of failure point, can accurately judge to search earth fault and short trouble.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of power source generator in the utility model;
Syndeton schematic diagram when Fig. 2 is the utility model application.
Embodiment
With reference to Fig. 1-Fig. 2, feeder line fault searches device, comprise the fault current detection device 2 of the power source generator 1 and hand-hold movable be fixedly installed, described power source generator 1 comprises generator 11, pressure regulator 12, stepup transformer 13, rectifier 14, reometer 16 and voltage table 17, the output terminal of described generator 11 is connected with the input end of pressure regulator 12, the output terminal of pressure regulator 12 is connected with the input end of stepup transformer 13, one output terminal of stepup transformer 13 is connected by the positive pole of reometer 16 with rectifier 14, the negative pole of rectifier 14 is the first output terminal 18 of power source generator 1, another output terminal of stepup transformer 13 is the second output terminal 19 of power source generator 1, described voltage table 17 is connected in parallel on the output terminal of generator 11, described fault current detection device 2 is clamp on amperemeter.
Described rectifier 14 two ends are connected in parallel a shorting switch 15.Described rectifier 14 is high voltage silicon rectifier stack, and it is withstand voltage is greater than 10kV, and rated current is greater than 1A.Described generator 11 is the genset driven by machine power, and its output voltage is interchange 110-380V, and output power is more than or equal to 10kVA.Described pressure regulator 12 is induction voltage regulator or is automatic coupling voltage regulator, and its capacity is more than or equal to 10kVA.Described stepup transformer 13 is ac step-up transformer, and its capacity is more than or equal to 10kVA.
Principle of work: the first output terminal 18 of power source generator 1 and the second output terminal 19 are connected on two circuits of the power circuit 3 of tested equipment 5, open generator 11, the voltage that generator 11 sends is by pressure regulator 12 pressure regulation, after stepup transformer 13 boosts, pass through rectifier 14 rectification again, make its output ripple high-tension current on the power circuit 3 of tested equipment 5.Reometer 16 and voltage table 17 indicate electric current in the use procedure of power circuit 3 troubleshooting device and voltage data; Hand-held fault current detection device 2 is connected in a line of power circuit 3, namely can the pulsating current signal that sends of traverse measurement stepup transformer 13.The effect of the shorting switch 15 that rectifier 14 two ends are connected in parallel is: when shorting switch 15 off-state, and what power source generator 1 exported is pulsation high-voltage direct current, is mainly used in there being the power circuit 3 of earth fault to test.When shorting switch 15 closes, what power source generator 1 exported is high-voltage ac current, is mainly used in there being the power circuit 3 of short trouble to test.
During use, with reference to Fig. 1-Fig. 2:
1, when electrical network generation singlephase earth fault, first output terminal 18 of power source generator 1 is connected with the power circuit 3 of tested equipment 5, its second output terminal 19 is connected with the earth, make shorting switch 15 in off-state, maintenance job personnel hold hand-held fault current detection device 2, detecting along power circuit 3 current signal that stepup transformer 13 sends, the position that the current signal that fault current detection device 2 detects suddenly disappears, is namely the earth fault 4 of power circuit 3.
2, when electrical network is short-circuited fault, first output terminal 18 of power source generator 1 is connected with power circuit 3 one end of tested equipment, its second output terminal 19 is connected with the other end of the power circuit 3 of tested equipment 5, make shorting switch 15 in on-state, maintenance job personnel hold hand-held fault current detection device 2, detect along power circuit 3 current signal that stepup transformer 13 sends to measure, namely the position that the current signal that fault current detection device 2 detects suddenly disappears is the short circuit trouble point 4 of power circuit 3.
The utility model is reasonable in design, structure simply, easily makes.It inputs as energy with generator, the suitable voltage that pressure regulator and stepup transformer provide is added on tested power circuit or equipment, by fault current detection device along electric current and voltage value added by wireline inspection, come failure judgement type and position of failure point, can accurately judge to search earth fault and short trouble.
Claims (6)
1. feeder line fault searches device, comprise the fault current detection device of power source generator and the hand-hold movable be fixedly installed, it is characterized in that: described power source generator comprises generator, pressure regulator, stepup transformer, rectifier, reometer and voltage table, the output terminal of described generator is connected with the input end of pressure regulator, the output terminal of pressure regulator is connected with the input end of stepup transformer, one output terminal of stepup transformer is connected with the positive pole of rectifier by reometer, the negative pole of rectifier is the first output terminal of power source generator, another output terminal of stepup transformer is the second output terminal of power source generator, described voltage table is connected in parallel on the output terminal of generator, described fault current detection device is clamp on amperemeter.
2. feeder line fault according to claim 1 searches device, it is characterized in that: described rectifier two ends are connected in parallel a shorting switch.
3. feeder line fault according to claim 1 searches device, it is characterized in that: described rectifier is high voltage silicon rectifier stack, and it is withstand voltage is greater than 10kV, and rated current is greater than 1A.
4. feeder line fault according to claim 1 searches device, it is characterized in that: described generator is the genset driven by machine power, and its output voltage is interchange 110-380V, and output power is more than or equal to 10kVA.
5. feeder line fault according to claim 1 searches device, it is characterized in that: described pressure regulator is induction voltage regulator or is automatic coupling voltage regulator, and its capacity is more than or equal to 10kVA.
6. feeder line fault according to claim 1 searches device, it is characterized in that: described stepup transformer is ac step-up transformer, and its capacity is more than or equal to 10kVA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520530501.0U CN204925293U (en) | 2015-07-21 | 2015-07-21 | Power line error detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520530501.0U CN204925293U (en) | 2015-07-21 | 2015-07-21 | Power line error detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204925293U true CN204925293U (en) | 2015-12-30 |
Family
ID=54974406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520530501.0U Expired - Fee Related CN204925293U (en) | 2015-07-21 | 2015-07-21 | Power line error detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204925293U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106470081A (en) * | 2016-08-30 | 2017-03-01 | 国网安徽省电力公司岳西县供电公司 | A kind of electric power signal gathers the searching and detecting method of interference source |
| CN107978205A (en) * | 2017-01-19 | 2018-05-01 | 何加圣 | A kind of measuring equipment load simulator |
| CN109507540A (en) * | 2018-12-20 | 2019-03-22 | 孟小晶 | High value ground short circuit fault point is pressed to search instrument and lookup method in one kind |
| CN110618343A (en) * | 2019-09-30 | 2019-12-27 | 广西桂冠电力股份有限公司 | Device and method for searching generator stator bar ground fault point |
| CN111579920A (en) * | 2020-04-17 | 2020-08-25 | 深圳供电局有限公司 | Fault detection device and method |
| CN112462194A (en) * | 2020-11-09 | 2021-03-09 | 国网山东省电力公司东平县供电公司 | Fault finding device and method for distribution line |
-
2015
- 2015-07-21 CN CN201520530501.0U patent/CN204925293U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106470081A (en) * | 2016-08-30 | 2017-03-01 | 国网安徽省电力公司岳西县供电公司 | A kind of electric power signal gathers the searching and detecting method of interference source |
| CN107978205A (en) * | 2017-01-19 | 2018-05-01 | 何加圣 | A kind of measuring equipment load simulator |
| CN109507540A (en) * | 2018-12-20 | 2019-03-22 | 孟小晶 | High value ground short circuit fault point is pressed to search instrument and lookup method in one kind |
| CN110618343A (en) * | 2019-09-30 | 2019-12-27 | 广西桂冠电力股份有限公司 | Device and method for searching generator stator bar ground fault point |
| CN111579920A (en) * | 2020-04-17 | 2020-08-25 | 深圳供电局有限公司 | Fault detection device and method |
| CN112462194A (en) * | 2020-11-09 | 2021-03-09 | 国网山东省电力公司东平县供电公司 | Fault finding device and method for distribution line |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204925293U (en) | Power line error detection device | |
| CN201628747U (en) | On-line detection device for insulation resistance of suspension insulator | |
| CN205103361U (en) | High voltage electric energy metering device detector of working a telephone switchboard | |
| WO2012097648A1 (en) | Multifunctional wiring detector for electric energy metering device | |
| CN201229390Y (en) | AC cable voltage test device | |
| CN202975222U (en) | Integrated tester for secondary circuit of current transformer | |
| CN208580172U (en) | One kind being grounded situation device for fast detecting for power system device | |
| CN202815146U (en) | Polarity detector for mutual inductor | |
| CN204758793U (en) | Special measuring apparatu of storage battery | |
| CN205210232U (en) | Low pressure intelligence fault detector | |
| CN102445622A (en) | Portable tester for volt-ampere characteristic of current transformer | |
| CN204832408U (en) | Portable current transformer secondary circuit tester of working a telephone switchboard | |
| CN209432939U (en) | A kind of high-power transformer second protection polarity test device | |
| CN209028130U (en) | A kind of high precision electro electromagnetic type voltage transformer no-load current test device | |
| CN206339637U (en) | A kind of power detecting system | |
| CN201955466U (en) | Multifunctional electric apparatus parameter test instrument | |
| CN102121976A (en) | Portable polarity calibration device for mutual inductor | |
| CN201540345U (en) | Mutual inductor polarity wired tester | |
| CN204855568U (en) | Operation low pressure current transformer trouble -locating device | |
| CN207573068U (en) | A kind of circuit resistance tester supplies electric installation | |
| CN204228876U (en) | Ground detection device | |
| CN105866650A (en) | Device for detecting voltage resistance of safety tools | |
| CN204065220U (en) | Electric current doubly changes testing clamp device | |
| CN203069674U (en) | Automatic detection tool for loop resistance | |
| CN204044331U (en) | A kind of multi-functional electric power system accumulator battery voltage Quick measurement tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151230 Termination date: 20160721 |