CN208520969U - Detection device is used in a kind of experiment of capacitor group switching - Google Patents
Detection device is used in a kind of experiment of capacitor group switching Download PDFInfo
- Publication number
- CN208520969U CN208520969U CN201820301171.1U CN201820301171U CN208520969U CN 208520969 U CN208520969 U CN 208520969U CN 201820301171 U CN201820301171 U CN 201820301171U CN 208520969 U CN208520969 U CN 208520969U
- Authority
- CN
- China
- Prior art keywords
- capacitor
- divider
- current
- connect
- breaker
- 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
Landscapes
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The utility model discloses a kind of capacitor group switching experiment detection devices, are related to reactive-load compensation equipment testing field.In the utility model: three phase mains is connect with breaker；Breaker is connect with three current transformer one end respectively；Secondary transformer is set with secondary micro-transformer of current；The current transformer other end is connect with three capacitors respectively, and three capacitor other ends are connect with the 4th divider；Four divider are connect with record display station；Breaker is connected with divide-shut brake coil；Divide-shut brake coil is connect with record display station.The utility model is by divider, capacitor group, divide-shut brake coil and current transformer cooperation in the detection of breaker opening and closing movement moment to all kinds of parameters such as voltage, electric current and recording, detected waveform is shown on same time coordinate axis by record display station, pass through analysis waveform and the ratio between transient peaks and stable state peak value, judge automatically whether breaker restrikes, it is simple with using, it is easy to operate.
Description
Technical field
The utility model belongs to reactive-load compensation equipment testing field, tests more particularly to a kind of capacitor group switching with inspection
Survey device.
Background technique
A large number of experiments of high-voltage circuitbreaker switched capacitor group is studies have shown that high-voltage circuitbreaker opens and closes capacitor, reactor
When there are after arc be delayed repeated breakdown and can high-frequency extinguishing arc phenomenon, that is, phenomenon of restriking.Once restriking, high-amplitude can be generated
The Restriking overvoltage of value especially repeatedly restrikes or multiphase is restriked, and overvoltage seriously threatens paralleling compensating device and system
Safety.And 20 times for closing the peak value that shoves and the specified drop-out current of capacitor group being not to be exceeded when capacitor group investment, close frequency
Rate should not exceed 1000Hz.
Therefore, for opening and closing the vacuum circuit breaker of capacitor group without restriking or low rate of restriking just is particularly important,
Just there is specific regulation to this in GB1984-2003 " high-voltage AC breaker " standard.There are special chapters and sections for examining switching electric
The breaker performance (must not restrike) of container group.
Originally the type-test report that can only be provided by producer due to a lack of necessary detection means, power department, scene
It does not detect, or the professionals such as commission DianKeYuan use traditional equipment (oscillograph, divider, ammeter, multimeter
Deng) testboard is built, this mode takes time and effort, and technical requirements are also high.
Utility model content
The purpose of this utility model is to provide a kind of capacitor group switching experiment detection devices, pass through divider, electricity
Container group, divide-shut brake coil and current transformer cooperation detect at the breaker opening and closing movement moment to all kinds of ginsengs such as voltage, electric current
Detected waveform is shown on same time coordinate axis by record display station, passes through analysis waveform and transient state by number and recording
The ratio between peak value and stable state peak value, judge automatically whether breaker restrikes, and have and use simply, easy to operate.
In order to solve the above technical problems, the utility model is achieved through the following technical solutions:
The utility model is a kind of capacitor group switching experiment detection device, comprising: three phase mains, breaker, electric current
Mutual inductor, first capacitor device, the second capacitor, third capacitor, the first divider, the second divider, third divider, the 4th
Divider and record display station；
The three phase mains is connect with breaker；The three phase mains is connect by an adjustable resistance with earthing module；Institute
Breaker is stated to connect with three current transformer one end respectively；It is mutual that the secondary transformer is set with one or two miniature electric currents
Sensor；The secondary micro-transformer of current is connect with record display station；
The current transformer other end is connect with first capacitor device, the second capacitor, third capacitor respectively；Described
It is connected between the first divider, second capacitor and current transformer and is connected between one capacitor and current transformer
Third divider is connected between second divider, the third capacitor and current transformer；The first capacitor device, second
Capacitor, the third capacitor other end are connect with the 4th divider；First divider, the second divider, third partial pressure
Device and the 4th divider are connect with record display station；First divider, the second divider, third divider and the 4th point
Depressor is for obtaining three-phase voltage and neutral point voltage；
The breaker is connected with a divide-shut brake coil；The divide-shut brake coil is connect with record display station；
The record display station is used at the breaker opening and closing movement moment to voltage, current parameters recording, and will be detected
Waveform is shown on same time coordinate axis, and by analysis waveform and the ratio between transient peaks and stable state peak value, it is disconnected to judge automatically this
Whether road device restrikes.
Further, the current signal of the divide-shut brake coil is obtained by opening Hall DC current sensor, and is made
For the recording enabling signal of each voltage and current of major loop.
Further, the secondary micro-transformer of current is for obtaining three-phase current.Secondary micro-transformer of current is
Pincerlike CT.
Further, a disconnect switch is equipped between the three phase mains and adjustable resistance.
The utility model has the following beneficial effects:
The utility model is opened and closed by divider, capacitor group, divide-shut brake coil and current transformer cooperation in breaker
Action moment detection shows detected waveform same to all kinds of parameters such as voltage, electric current and recording, by record display station
On time coordinate axis, by analysis waveform and the ratio between transient peaks and stable state peak value, judges automatically whether breaker restrikes, have
It is easy to operate using simple.
Certainly, any product for implementing the utility model does not necessarily require achieving all the advantages described above at the same time.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the utility model embodiment, make required for being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the drawings in the following description are merely some embodiments of the present invention,
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
Other attached drawings.
Fig. 1 is the result schematic diagram that detection device is used in a kind of experiment of capacitor group switching；
In attached drawing, parts list represented by the reference numerals are as follows:
1- three phase mains, 2- breaker, 3- current transformer, 4- divide-shut brake coil, bis- micro-transformer of current of 5-, 6-
First divider, the second divider of 7-, 8- third divider, the 4th divider of 9-, 10- adjustable resistance, 11- earthing module,
12- records display station, A- first capacitor device, the second capacitor of B-, C- third capacitor.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
All other embodiment obtained, fall within the protection scope of the utility model.
Refering to Figure 1, the utility model is a kind of capacitor group switching experiment detection device, comprising: three-phase electricity
Source 1, breaker 2, current transformer 3, first capacitor device A, the second capacitor B, third capacitor C, the first divider 6, second
Divider 7, third divider 8, the 4th divider 9 and record display station 12；
Three phase mains 1 is connect with breaker 2；Three phase mains 1 is connect by an adjustable resistance 10 with earthing module 11；It is disconnected
Road device 2 is connect with three 3 one end of current transformer respectively；3 grades of current transformer are set with one or two micro-transformer of current
5；Secondary micro-transformer of current 5 is connect with record display station 12；
3 other end of current transformer is connect with first capacitor device A, the second capacitor B, third capacitor C respectively；First
It is connected between the first divider 6, the second capacitor B and current transformer 3 and is connected between capacitor A and current transformer 3
Third divider 8 is connected between second divider 7, third capacitor C and current transformer 3；First capacitor device A, the second electricity
Container B, the third capacitor C other end are connect with the 4th divider 9；First divider 6, the second divider 7, third partial pressure
Device 8 and the 4th divider 9 are connect with record display station 12；First divider 6, the second divider 7, third divider 8 and
Four divider 9 are for obtaining three-phase voltage and neutral point voltage；Breaker 2 is connected with a divide-shut brake coil 4；Divide-shut brake coil 4
It is connect with record display station 12；
It records display station 12 to be used at the 2 opening and closing movement moment of breaker to voltage, current parameters recording, and by detected wave
Shape is shown on same time coordinate axis, by analysis waveform and the ratio between transient peaks and stable state peak value, judges automatically the open circuit
Whether device restrikes, and record display station 12 further includes microprocessor, storage unit and time chip, what microprocessor was used to will test
Voltage, current parameters are transcribed into waveform and are shown on same time coordinate axis, voltage, the electric current that record display station 12 will test
Parameter is stored by storage unit, and time chip is for providing time signal.
Wherein, the current signal of divide-shut brake coil 4 is obtained by opening Hall DC current sensor, and as major loop
The recording enabling signal of each voltage and current.
Wherein, secondary micro-transformer of current 5 is for obtaining three-phase current.Secondary micro-transformer of current 5 is pincer
CT。
Wherein, a disconnect switch is equipped between three phase mains 1 and adjustable resistance 10.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one of the utility model
In embodiment or example.In the present specification, schematic expression of the above terms be not necessarily referring to identical embodiment or
Example.Moreover, particular features, structures, materials, or characteristics described can be in any one or more embodiment or examples
In can be combined in any suitable manner.
The preferred embodiment in the utility model disclosed above is only intended to help to illustrate the utility model.Preferred embodiment is simultaneously
There is no the details that detailed descriptionthe is all, also not limiting the utility model is only the specific embodiment.Obviously, according to this theory
The content of bright book can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to preferably
The principles of the present invention and practical application are explained, so that skilled artisan be enable to better understand and utilize this
Utility model.The utility model is limited only by the claims and their full scope and equivalents.
Claims (4)
1. a kind of capacitor group switching experiment detection device characterized by comprising three phase mains (1), breaker (2), electricity
Current transformer (3), first capacitor device (A), the second capacitor (B), third capacitor (C), the first divider (6), the second partial pressure
Device (7), third divider (8), the 4th divider (9) and record display station (12)；
The three phase mains (1) connect with breaker (2)；The three phase mains (1) passes through an adjustable resistance (10) and ground connection mould
Block (11) connection；
The breaker (2) connect with three current transformer (3) one end respectively；Current transformer (3) secondary is set with
One or two micro-transformer of current (5)；The secondary micro-transformer of current (5) connect with record display station (12)；
Current transformer (3) other end connects with first capacitor device (A), the second capacitor (B), third capacitor (C) respectively
It connects；
The first divider (6), second capacitor (B) are connected between the first capacitor device (A) and current transformer (3)
It is connected between the second divider (7), the third capacitor (C) and current transformer (3) and connects between current transformer (3)
It is connected to third divider (8)；
The first capacitor device (A), the second capacitor (B), third capacitor (C) other end are connect with the 4th divider (9)；
First divider (6), the second divider (7), third divider (8) and the 4th divider (9) with record display station
(12) it connects；
The breaker (2) is connected with a divide-shut brake coil (4)；The divide-shut brake coil (4) connect with record display station (12)；
The record display station (12) is used at breaker (2) the opening and closing movement moment to voltage, current parameters recording, and will be detected
Waveform is surveyed to be shown on same time coordinate axis.
2. a kind of capacitor group switching experiment detection device according to claim 1, which is characterized in that the divide-shut brake
The current signal of coil (4) is obtained by opening Hall DC current sensor, and the recording as each voltage and current of major loop
Enabling signal.
3. a kind of capacitor group switching experiment detection device according to claim 1, which is characterized in that described secondary micro-
Type current transformer (5) is pincer CT for obtaining three-phase current, secondary micro-transformer of current (5).
4. a kind of capacitor group switching experiment detection device according to claim 1, which is characterized in that the three-phase electricity
A disconnect switch is equipped between source (1) and adjustable resistance (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820301171.1U CN208520969U (en) | 2018-03-05 | 2018-03-05 | Detection device is used in a kind of experiment of capacitor group switching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820301171.1U CN208520969U (en) | 2018-03-05 | 2018-03-05 | Detection device is used in a kind of experiment of capacitor group switching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208520969U true CN208520969U (en) | 2019-02-19 |
Family
ID=65327466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820301171.1U Expired - Fee Related CN208520969U (en) | 2018-03-05 | 2018-03-05 | Detection device is used in a kind of experiment of capacitor group switching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208520969U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112014676A (en) * | 2020-09-11 | 2020-12-01 | 西安高压电器研究院有限责任公司 | Switching test device for capacitor device type test |
-
2018
- 2018-03-05 CN CN201820301171.1U patent/CN208520969U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112014676A (en) * | 2020-09-11 | 2020-12-01 | 西安高压电器研究院有限责任公司 | Switching test device for capacitor device type test |
| CN112014676B (en) * | 2020-09-11 | 2023-10-13 | 西安高压电器研究院股份有限公司 | Switching test device for capacitor device type test |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206773133U (en) | Electric switch equipment combined test stand | |
| CN103399184B (en) | Conveniently can adjust the combined connection box of phase sequence | |
| CN103809116B (en) | A kind of short-circuit capability test system and its method | |
| CN102780234B (en) | High-voltage electric debugging method for power generation project | |
| CN202870244U (en) | Testing apparatus for asymmetric voltage applying of converter valve | |
| CN107797034A (en) | The detection means and method of dielectric recovery property after a kind of high-voltage sf6 circuit breaker arc | |
| CN109001587A (en) | Utilize the polar method of excitation surge current checking main transformer high-pressure side CT | |
| CN203069685U (en) | Comprehensive test instrument for capacitor or inductor switching test | |
| CN207650356U (en) | Experiment power supply for large capacity mesolow dc circuit breaker short circuit switching test | |
| CN208520969U (en) | Detection device is used in a kind of experiment of capacitor group switching | |
| CN203101556U (en) | Multifunctional debugging trolley | |
| CN2867561Y (en) | Mine flame-proof vacuum feed switch | |
| CN206096309U (en) | Ferroresonance detects and prevention and cure combined test platform | |
| CN108051769A (en) | A kind of capacitance type potential transformer transient response experimental rig and test method | |
| CN105425066A (en) | Special capacitor ripple current detection main circuit for flexible direct-current power transmission | |
| CN103149479A (en) | Multifunctional debugging trolley | |
| CN110702952A (en) | Portable 10kV handcart switch loop resistance test auxiliary device | |
| CN208334556U (en) | High pressure ferromagnetic resonance analogue test platform | |
| CN202455061U (en) | Intelligent comprehensive resonance elimination device | |
| CN203337754U (en) | Resonance eliminator detection apparatus | |
| CN201926742U (en) | Switching test loop for paralleling reactor of high-voltage AC circuit breaker | |
| Li et al. | Research on Single-phase Grounding Fault Handling True Test of Primary and Secondary Integration Circuit Breaker | |
| CN212323701U (en) | Novel differential line selection comprehensive grounding protection device | |
| CN203504192U (en) | High-voltage step voltage and capacitance regulating reactive compensation complete equipment | |
| CN206672872U (en) | It is a kind of can the how many breaker of efficient detection load |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20190219 |