CN102590739B - On-line detecting device for switch-on and switch-off period of power switch cabinet circuit breaker - Google Patents
On-line detecting device for switch-on and switch-off period of power switch cabinet circuit breaker Download PDFInfo
- Publication number
- CN102590739B CN102590739B CN201210036531.7A CN201210036531A CN102590739B CN 102590739 B CN102590739 B CN 102590739B CN 201210036531 A CN201210036531 A CN 201210036531A CN 102590739 B CN102590739 B CN 102590739B
- Authority
- CN
- China
- Prior art keywords
- frequency signal
- switch
- circuit
- current sensor
- hall current
- 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
- 230000003068 static effect Effects 0.000 claims abstract description 15
- 230000008878 coupling Effects 0.000 claims abstract description 13
- 238000010168 coupling process Methods 0.000 claims abstract description 13
- 238000005859 coupling reaction Methods 0.000 claims abstract description 13
- 238000004891 communication Methods 0.000 claims abstract description 6
- 230000000737 periodic effect Effects 0.000 claims description 11
- 238000007493 shaping process Methods 0.000 claims description 9
- 238000004804 winding Methods 0.000 claims description 9
- 239000003990 capacitor Substances 0.000 claims description 4
- 238000004880 explosion Methods 0.000 claims description 4
- 102100027241 Adenylyl cyclase-associated protein 1 Human genes 0.000 claims description 3
- 108010077333 CAP1-6D Proteins 0.000 claims description 3
- 108010031970 prostasin Proteins 0.000 claims description 3
- 101000804730 Xenopus laevis Protein Wnt-1 Proteins 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 17
- 238000001514 detection method Methods 0.000 abstract description 7
- 238000012545 processing Methods 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 abstract description 2
- 230000003750 conditioning effect Effects 0.000 abstract 1
- 238000002955 isolation Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
The invention discloses an on-line detecting device and an on-line detecting method for a switch-on and switch-off period of a power switch cabinet circuit breaker. The device and the method solve the problems of high measurement randomness, unreasonable signal processing, inaccurate detection result and the like in the conventional on-line detecting device and the conventional on-line detecting method. The device comprises a Hall current sensor, switch-on and switch-off coil Hall current sensor output conditioning circuits, a high-frequency signal coupling circuit, a high-frequency signal decoupling circuit, a microprocessor, a sound and light alarm unit and a communication unit. By coupling high-frequency signals to one end of each of three-phase dynamic and static contacts of a main circuit of the circuit breaker, respectively performing high-frequency signal decoupling at the corresponding other ends of the three-phase dynamic and static contacts and processing through a power switch cabinet circuit breaker switch-on and switch-off period on-line detecting program fixed in the microprocessor, on-line detection of the switch-on and switch-off period is realized, and three-phase asynchronous on-line detection of the circuit breaker can be realized. When the device is used for detecting the high-voltage cabinet circuit breaker, the structure of the original device is not required to be changed, and the performance of a high-voltage switch cabinet is not affected.
Description
Technical field
The present invention relates to a kind of on-line measuring device and method of power switch cabinet breaker, particularly the on-line measuring device in a kind of power switch cabinet circuit-breaker switching on-off cycle and method.
Background technology
For a long time, power switch cabinet breaker happens occasionally because of the accident that mechanical property degenerates, isolating switch three-phase does not cause the same period, need to adopt breaker mechanic property on-line measuring device to detect for this reason, but existing breaker mechanic property detector is offline inspection, must isolating switch stop transport after just can examinations.It is many that breaker mechanic property can not be realized the reason of online detection, its main cause be under fuser belt electricity condition the divide-shut brake cycle be difficult for accurately being detected.At present, circuit-breaker switching on-off periodic on-line detection method mainly contains three kinds, one method is to utilize Hall current sensor to be combined and to detect with current transformer, while utilizing circuit-breaker switching on-off, the current vanishes moment of isolating switch major loop or current flowing moment are determined just dividing of isolating switch dynamic/static contact or the firm conjunction, though the method can detect the circuit-breaker switching on-off cycle more exactly online, isolating switch not on-load in the situation that the method cannot implement; Second method is to utilize the auxiliary contact of Hall current sensor and isolating switch to detect, utilize auxiliary contact of breaker to determine that switch just divides, the firm conjunction, because auxiliary contact of breaker is mechanical contact, its action is not strict synchronizeing with isolating switch action, therefore, there is very large error and randomness.The third method is to adopt Hall current sensor and vibration transducer to detect, by circuit-breaker switching on-off vibration signal is analyzed, determined maximal value just the dividing corresponding to circuit-breaker switching on-off of vibration signal in circuit-breaker switching on-off process, the just conjunction, therefore, extract maximal value in circuit-breaker switching on-off process and just can determine just dividing of switch divide-shut brake, the just conjunction, but Circuit breaker vibration signal is relevant with isolating switch installation site, when different positions is installed, Circuit breaker vibration signal is not identical yet, and vibration signal is difficult for processing, so, the method does not possess operability.
Summary of the invention
The invention provides a kind of power switch cabinet circuit-breaker switching on-off periodic on-line pick-up unit and detection method, solved the measurement randomness that existing on-line measuring device and method exist large, signal is processed the problems such as unreasonable and testing result is inaccurate.
The present invention overcomes the above problems by following scheme:
A kind of power switch cabinet circuit-breaker switching on-off periodic on-line pick-up unit, comprises Hall current sensor, switching winding Hall current sensor output modulate circuit, closing coil Hall current sensor output modulate circuit, high-frequency signal coupled circuit, high-frequency signal decoupling zero circuit, microprocessor, acousto-optic warning unit and communication unit.Wherein Hall current sensor U
6primary side series connection is arranged in the switching winding loop in the divide-shut brake control circuit of isolating switch, Hall current sensor U
6two output terminals be connected in parallel on resistance R
5two ends, resistance R
5one end and Schmidt's wave shaping chip U
2input end connect, resistance R
5other end ground connection, Schmidt's wave shaping chip U
2output terminal and microprocessor U
1external interrupt 1 pin XINT1 connects, another Hall current sensor U
7primary side series connection is arranged in the closing coil loop in circuit-breaker switching on-off control circuit, Hall current sensor U
7two output terminals be connected in parallel on resistance R
6two ends, resistance R
6one end and another Schmidt's wave shaping chip U
3input end connects, resistance R
6other end ground connection, Schmidt's wave shaping chip U
3output terminal and microprocessor U
1external interrupt 2 pin XINT2 connect, microprocessor U
1an I/O pin GPIOA0 pass through R
2with high frequency light electric coupler U
4input end connects, high frequency light electric coupler U
4one end of output and+5V power supply V
cCafter being connected, be connected to one end of high-frequency signal isolating transformer T1 primary coil, high-frequency signal isolating transformer T
1the other end of primary coil passes through resistance R
1with high frequency light electric coupler U
4ground connection after the other end of output is connected, high-frequency signal isolating transformer T
1one end of secondary coil is by power coupling capacitor C
1be connected high-frequency signal isolating transformer T with one end A of a certain phase vacuum tube dynamic/static contact in isolating switch major loop
1the other end of secondary coil is by telefault L
1ground connection, in isolating switch major loop, the other end a of this phase vacuum tube dynamic/static contact is by electric power decoupling capacitance device C
2with high-frequency signal isolating transformer T
2one end of primary coil connects, high-frequency signal isolating transformer T
2the other end of primary coil is by telefault L
2ground connection, high-frequency signal isolating transformer T
2secondary coil and high frequency light electric coupler U
5input end connects, high frequency light electric coupler U
5one end of output and+3.3V power supply V
cCafter being connected, be connected to microprocessor U
1capturing unit CAP1 pin, high frequency light electric coupler U
5the other end of output passes through resistance R
4ground connection.
At high-frequency signal isolating transformer T
1the two ends of secondary coil are parallel with explosion stack D
1, at another high-frequency signal isolating transformer T
2the two ends of primary coil are parallel with another explosion stack D
2.
A kind of power switch cabinet circuit-breaker switching on-off periodic on-line detection method, comprises the following steps:
The first step: by Hall current sensor U
6primary side is connected in the switching winding loop in circuit-breaker switching on-off control circuit;
Second step: by Hall current sensor U
6the breaker open operation coil obtaining obtains the electric moment, and initial time sends microprocessor U to the breaker open operation cycle
1, microprocessor U
1at breaker open operation coil, obtain the electric high-frequency signal that simultaneously sends;
The 3rd step: the high-frequency signal that upper step obtains is through high frequency light electric coupler, high-frequency signal isolating transformer T
1with coupling capacitance C
1deng the high-frequency signal coupled circuit of element composition, this high-frequency signal is superimposed upon to one end of A phase dynamic/static contact in isolating switch major loop;
The 4th step: the other end of A phase dynamic/static contact passes through by high frequency light electric coupler U in isolating switch major loop
5, high-frequency signal isolating transformer T
2with coupling capacitance C
2by high-frequency signal, from high pressure power frequency component, decoupling zero is out and transfer to microprocessor U Deng the high-frequency signal decoupler of element composition
1capturing unit CAP1 pin;
The 5th step: high-frequency signal coupled circuit and high-frequency signal decoupling zero circuit that isolating switch B phase and C phase are installed respectively by the installation process that repeats second step to the four steps shown in Fig. 6;
The 6th step: microprocessor U
1by to Hall current sensor U
6the high-frequency signal of output signal and the 4th step solution decoupling is processed calculating, draws separating brake cycle and the separating brake asynchrony of isolating switch;
The 7th step: by another Hall current sensor U
7primary side is connected in the closing coil loop in circuit-breaker switching on-off control circuit, and the step that repeats second step to the six steps can draw respectively the combined floodgate cycle of isolating switch A phase, B phase and C phase and the not same sex of closing a floodgate.
The invention provides a kind of simple in structure, easy for installation, measure accurately.Save breaker of switch cabinet idle time, improved the reliability of power system power supply.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is switching winding Hall current sensor output modulate circuit schematic diagram of the present invention;
Fig. 3 is closing coil Hall current sensor output modulate circuit schematic diagram of the present invention;
Fig. 4 is high-frequency signal coupled circuit schematic diagram of the present invention;
Fig. 5 is high-frequency signal decoupling zero circuit theory diagrams of the present invention;
Fig. 6 is that the present invention detects circuit-breaker switching on-off cycle three-phase mounting structure schematic diagram online.
Embodiment
Apparatus of the present invention comprise Hall current sensor, switching winding Hall current sensor output modulate circuit, closing coil Hall current sensor output modulate circuit, high-frequency signal coupled circuit, high-frequency signal decoupling zero circuit, microprocessor, acousto-optic warning unit and communication unit.The Hall current sensor response time is wherein at Microsecond grade, therefore can comparatively fast and exactly obtaining circuit-breaker switching on-off coil, to obtain the electric time be divide-shut brake cycle initial time, and the current signal that switching winding Hall current sensor output modulate circuit and closing coil Hall current sensor output modulate circuit are exported Hall current sensor is through sample resistance R
5or R
6, current signal is converted into voltage signal, voltage signal after shaping, both can reach and eliminate the effect of disturbing after Schmidt's chip, can provide one preferably along trigger pip for the external interrupt of microprocessor again.
High-frequency signal coupled circuit: its effect is that the low-voltage high-frequency signal of generation is coupling in the high pressure power frequency component of a certain phase dynamic/static contact of isolating switch one end, realizes the isolation of high-low pressure signal.Wherein the input of photoelectric coupling chip connects the I/O pin of microprocessor, the pulse signal that microprocessor is produced is sent to high-frequency isolation transformer primary coil after photoelectricity isolation, for preventing that high frequency signal attenuation from cannot receive, at the add+5V of collector side of photoelectric coupling chip output triode power supply, high-frequency signal is amplified; Coupled circuit medium-high frequency signal isolating transformer T
1realized strong and weak electricity isolation, it is sent to the power coupling capacitor C of secondary coil by the high-frequency signal after amplifying from primary coil
1, power coupling capacitor C
1high-frequency signal can be coupled in high pressure industrial-frequency alternating current and stop high pressure power frequency component to be delivered in high-frequency isolation transformer; Inductance L in coupled circuit
1effectively prevented in high-frequency signal inflow place, and the power frequency component of sending here by coupling capacitance can be sent in ground, thereby avoided power frequency high voltage signal to reach low pressure end, low voltage electrical equipment has been caused damage; When it implements monitoring installation, high-frequency signal coupled circuit input end is connected with microprocessor, high-frequency signal coupled circuit output terminal is connected with one end of a phase vacuum tube dynamic/static contact in the moving major loop of isolating switch, a terminal of high-frequency signal coupled circuit input is connected with the I/O of microprocessor, another terminal digital grounding, one terminal of high-frequency signal coupled circuit output is connected with a terminal of a phase vacuum tube dynamic/static contact in isolating switch major loop, another terminal analogue ground.
To described high-frequency signal decoupling zero circuit: its effect is that from the high pressure power frequency component of the dynamic/static contact other end, decoupling zero is out by the high-frequency signal that is coupling in a certain phase dynamic/static contact one end in isolating switch major loop.Wherein electric power decoupling capacitance device C
2terminal is arranged on the other end that corresponding high-frequency signal coupled circuit connects phase, and its effect is that high-frequency signal is out delivered to high-frequency isolation transformer T from the decoupling zero of high pressure power frequency component
2one end of primary coil, thus realized the isolation of high-low pressure voltage; High-frequency isolation transformer T
2the other end of primary coil is by inductor L
2ground connection, inductor L
2stoped high-frequency signal to import the earth into, and by the high pressure power frequency component access the earth importing into; High-frequency isolation transformer T
2the high-frequency signal of decoupling zero is sent to low-voltage end secondary coil from high voltage end primary coil, has realized the isolation of high low-voltage; High-frequency isolation transformer T
2secondary coil is sent to high-frequency signal the capturing unit of microprocessor after high frequency light electric coupler carries out electrical isolation and level conversion.
In the present invention, can be provided with acousto-optic warning unit, its effect is to send in both cases sound and light alarm: the one, and the circuit-breaker switching on-off cycle exceeds permissible value, and the 2nd, when exceeding permissible value, isolating switch three-phase asynchrony reports to the police.
In the present invention, can be provided with communication unit, its effect is to set up easily many breaker of switch cabinet divide-shut brake periodic on-line checkout equipment networks, is convenient to data sharing.
To having solidified a power switch cabinet circuit-breaker switching on-off periodic on-line trace routine in described microprocessor, comprise initialize routine, external interrupt handling procedure, frequency signal acquisition process program, timer processing program, sound and light alarm program and communication program.External interrupt 1 handling procedure has completed the timing of separating brake cycle starting point, makes microprocessor send high-frequency signal simultaneously, and enables capturing unit and start to carry out step-by-step counting; External interrupt 2 handling procedures have completed the timing of combined floodgate cycle starting point, make microprocessor send high-frequency signal simultaneously, and enable timer and start timing and enable capture interrupt simultaneously, stop timer timing when capturing unit captures first pulse; Frequency signal capture program has completed frequency collection calculating and frequency signal and the corresponding relation processing of divide-shut brake cycle of signal; Timer processing program has completed the combined floodgate cycle and timer counting corresponding relation calculates; During separating brake cycle monitoring, at switching winding, obtain the initial time in separating brake cycle when electric, by microprocessor external interrupt 1, start that capturing unit counter starts to carry out step-by-step counting until the firm timesharing of isolating switch, when high-frequency signal cannot transmit, counting stops; During combined floodgate cycle monitoring, at closing coil, obtain the initial time in the cycle of closing a floodgate when electric, by microprocessor external interrupt 2, start that timer internal starts timing until isolating switch while just having closed, when microprocessor captures first pulse signal, timer timing stops; Warning function when sound and light alarm program can realize divide-shut brake cycle and isolating switch three-phase do not meet on-the-spot standard the same period, 485 communication programs have completed this monitoring device and have been connected and data sharing with the grid-connected of other monitoring device.
Pick-up unit of the present invention has been eliminated other structure of the detecting device complexity, signal is processed unreasonable and random large shortcoming.Its principal feature is by the couples high frequency signals respectively of the one end at isolating switch major loop three-phase dynamic/static contact, the other end in corresponding phase carries out respectively high-frequency signal decoupling zero, realizing divide-shut brake periodic on-line detects, and can realize isolating switch three-phase asynchrony detects online, this device is during to high-voltage board isolating switch examinations, original device structure, without variation, does not affect the various performances of high-tension switch cabinet, and particularly its insulativity is not affected.This device adopts conventional element and material, cost is low, and industrial realization is convenient, is a kind of industrial comparatively practical more complete breaker of switch cabinet divide-shut brake periodic on-line pick-up unit of function ratio, thereby reduce breaker of switch cabinet idle time, improved power system power supply reliability.
Claims (2)
1. a power switch cabinet circuit-breaker switching on-off periodic on-line pick-up unit, comprises Hall current sensor U
6and Hall current sensor U
7, switching winding Hall current sensor output modulate circuit, closing coil Hall current sensor output modulate circuit, high-frequency signal coupled circuit, high-frequency signal decoupling zero circuit, microprocessor, acousto-optic warning unit and communication unit, it is characterized in that Hall current sensor U
6primary side series connection is arranged in the switching winding loop in the divide-shut brake control circuit of isolating switch, Hall current sensor U
6two output terminals be connected in parallel on resistance R
5two ends, resistance R
5one end and Schmidt's wave shaping chip U
2input end connect, resistance R
5other end ground connection, Schmidt's wave shaping chip U
2output terminal and microprocessor U
1external interrupt 1 pin XINT1 connects, another Hall current sensor U
7primary side series connection is arranged in the closing coil loop in circuit-breaker switching on-off control circuit, Hall current sensor U
7two output terminals be connected in parallel on resistance R
6two ends, resistance R
6one end and another Schmidt's wave shaping chip U
3input end connects, resistance R
6other end ground connection, Schmidt's wave shaping chip U
3output terminal and microprocessor U
1external interrupt 2 pin XINT2 connect, microprocessor U
1an I/O pin GPIOA0 pass through R
2with high frequency light electric coupler U
4input end connects, high frequency light electric coupler U
4one end of output and+5V power supply V
cC1after being connected, be connected to one end of high-frequency signal isolating transformer T1 primary coil, high-frequency signal isolating transformer T
1the other end of primary coil passes through resistance R
1with high frequency light electric coupler U
4ground connection after the other end of output is connected, high-frequency signal isolating transformer T
1one end of secondary coil is by power coupling capacitor C
1be connected high-frequency signal isolating transformer T with one end A of a certain phase vacuum tube dynamic/static contact in isolating switch major loop
1the other end of secondary coil is by telefault L
1ground connection, in isolating switch major loop, the other end a of this phase vacuum tube dynamic/static contact is by electric power decoupling capacitance device C
2with high-frequency signal isolating transformer T
2one end of primary coil connects, high-frequency signal isolating transformer T
2the other end of primary coil is by telefault L
2ground connection, high-frequency signal isolating transformer T
2secondary coil and high frequency light electric coupler U
5input end connects, high frequency light electric coupler U
5one end of output and+3.3V power supply V
cC2after being connected, be connected to microprocessor U
1capturing unit CAP1 pin, high frequency light electric coupler U
5the other end of output passes through resistance R
4ground connection.
2. a kind of power switch cabinet circuit-breaker switching on-off periodic on-line pick-up unit according to claim 1, is characterized in that, at high-frequency signal isolating transformer T
1the two ends of secondary coil be parallel with explosion stack D
1, at another high-frequency signal isolating transformer T
2the two ends of primary coil be parallel with another explosion stack D
2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210036531.7A CN102590739B (en) | 2012-02-18 | 2012-02-18 | On-line detecting device for switch-on and switch-off period of power switch cabinet circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210036531.7A CN102590739B (en) | 2012-02-18 | 2012-02-18 | On-line detecting device for switch-on and switch-off period of power switch cabinet circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102590739A CN102590739A (en) | 2012-07-18 |
| CN102590739B true CN102590739B (en) | 2014-04-16 |
Family
ID=46479659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210036531.7A Active CN102590739B (en) | 2012-02-18 | 2012-02-18 | On-line detecting device for switch-on and switch-off period of power switch cabinet circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102590739B (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103454580B (en) * | 2013-08-23 | 2016-01-20 | 国家电网公司 | A kind of circuit-breaker switching on-off coil characteristics proving installation |
| CN103675666A (en) * | 2013-12-17 | 2014-03-26 | 国家电网公司 | Live line measurement device and method for breaker in different periods of time |
| CN104535925A (en) * | 2015-01-12 | 2015-04-22 | 国网上海市电力公司 | Power-uninterrupted operation method for state detection of circuit breaker mechanism |
| CN105047453B (en) * | 2015-07-02 | 2017-05-31 | 国家电网公司 | For the breaker operator controller and operating method of breaker division time control |
| CN105891705A (en) * | 2016-03-15 | 2016-08-24 | 国家电网公司 | Detection system of a circuit breaker |
| CN105785200A (en) * | 2016-04-29 | 2016-07-20 | 国网浙江省电力公司绍兴供电公司 | Operation equipment correspondence testing device |
| CN105954612A (en) * | 2016-04-29 | 2016-09-21 | 国网浙江省电力公司绍兴供电公司 | Operating equipment corresponding relation test method |
| CN106209050B (en) * | 2016-08-19 | 2023-08-04 | 德力西电气有限公司 | Low-cost low-power consumption electronic switch circuit |
| CN107179500B (en) * | 2017-06-19 | 2020-06-02 | 国家电网公司 | Method for measuring switching-on and switching-off time when two ends of circuit breaker are grounded based on orthogonal pulse |
| CN109298329A (en) * | 2018-11-23 | 2019-02-01 | 广东电网有限责任公司 | A kind of circuit-breaker switching on-off test method |
| CN113341309A (en) * | 2021-05-10 | 2021-09-03 | 广西电网有限责任公司电力科学研究院 | Device and method for detecting three-phase closing synchronization and contact bounce of circuit breaker |
| CN115524608B (en) * | 2022-10-13 | 2023-08-11 | 常熟理工学院 | Switching-on and switching-off synchronism online detection sensing device of low-voltage intelligent circuit breaker |
| CN116053094B (en) * | 2023-03-31 | 2023-05-30 | 清华大学 | Quick mechanical switch operating mechanism with adjustable opening speed and control method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101118275A (en) * | 2007-07-30 | 2008-02-06 | 国网南京自动化研究院 | On-line monitoring methods for high-voltage circuit-breaker switching on-off time |
| CN202563065U (en) * | 2012-02-18 | 2012-11-28 | 山西省电力公司晋城供电分公司 | Opening and closing period on-line detection device for electric power switch cabinet breaker |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3870321B2 (en) * | 2002-04-17 | 2007-01-17 | 株式会社日立製作所 | Switch operating characteristic monitoring device |
| JP4924199B2 (en) * | 2006-05-24 | 2012-04-25 | 東京電力株式会社 | Three-phase circuit breaker characteristic measurement device, three-phase circuit breaker irregularity abnormality detection method, and program for causing a computer to execute three-phase circuit breaker irregularity abnormality detection |
-
2012
- 2012-02-18 CN CN201210036531.7A patent/CN102590739B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101118275A (en) * | 2007-07-30 | 2008-02-06 | 国网南京自动化研究院 | On-line monitoring methods for high-voltage circuit-breaker switching on-off time |
| CN202563065U (en) * | 2012-02-18 | 2012-11-28 | 山西省电力公司晋城供电分公司 | Opening and closing period on-line detection device for electric power switch cabinet breaker |
Non-Patent Citations (8)
| Title |
|---|
| 401 电秒表测量断路器分合闸时间的探讨;王森等;《企业技术开发》;20100731;第29卷(第13期);25-26 * |
| JP特开2003-308751A 2003.10.31 |
| JP特开2008-4537A 2008.01.10 |
| 孟永鹏等.真空断路器机械特性的在线监测方法.《高压电器》.2006,第42卷(第1期), |
| 王森等.401 电秒表测量断路器分合闸时间的探讨.《企业技术开发》.2010,第29卷(第13期), |
| 真空断路器机械特性的在线监测方法;孟永鹏等;《高压电器》;20060228;第42卷(第1期);31-34 * |
| 陈功振等.高压断路器分、合闸速度的测定.《机电一体化》.2002,(第5期), |
| 高压断路器分、合闸速度的测定;陈功振等;《机电一体化》;20021231(第5期);71-72 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102590739A (en) | 2012-07-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102590739B (en) | On-line detecting device for switch-on and switch-off period of power switch cabinet circuit breaker | |
| CN202563065U (en) | Opening and closing period on-line detection device for electric power switch cabinet breaker | |
| CN103698695A (en) | Multifunctional electrical characteristic testing device and testing method for high-voltage circuit breaker | |
| CN103954906A (en) | Device and method for relay state inspection | |
| CN201936442U (en) | On-line monitoring system for capacitance voltage transformer | |
| CN102129763A (en) | CVT (Capacitor Voltage Transformer) online monitoring system | |
| CN207096378U (en) | A kind of acoustoelectric combined partial discharge detecting system of switch cubicle | |
| CN203799008U (en) | Pillar type electronic current transformer primary vibration test data acquisition device | |
| CN103454581A (en) | Contactor performance testing equipment | |
| CN104218523A (en) | Detecting circuit for circuit breaker | |
| CN105527549A (en) | Partial discharge data collection circuit and detection system | |
| CN104502665A (en) | Device and method for testing residual voltage | |
| CN203502555U (en) | Electrical characteristic detecting device for multifunctional high-voltage circuit breaker | |
| CN103900636B (en) | Online insulation and temperature monitoring system used for 12kV solid insulated switch cabinet | |
| CN203811726U (en) | Microcomputer protection device anti-interference switching value detection circuit | |
| CN107765084B (en) | Universal voltage input power frequency signal frequency measurement system | |
| JP5153693B2 (en) | Data collection system | |
| CN205749824U (en) | The detection of a kind of three-phase motor circuit and protection system | |
| CN102135576B (en) | Switching tester of substation condenser bank | |
| CN200979866Y (en) | An intelligent release of a build-in voltage sensor | |
| CN202837415U (en) | Amplitude frequency characteristic testing system | |
| CN204556784U (en) | A kind of circuit module measures switching device | |
| CN204269772U (en) | A kind of circuit module measures adapting system | |
| CN203551241U (en) | One-time coupled vibration test device for electronic current transformer | |
| CN103592597B (en) | The mutual detecting method of fault of a kind of voltage linear buffer circuit and voltage comparator circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE GRID CORPORATION OF CHINA Effective date: 20121113 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20121113 Address after: 048000 Shanxi province Jincheng City Xinshi Street No. 1 Applicant after: Shanxi Jincheng Electric Power Supply Company Applicant after: State Grid Corporation of China Address before: 048000 Shanxi province Jincheng City Xinshi Street No. 1 Applicant before: Shanxi Jincheng Electric Power Supply Company |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |