CN201225961Y - High voltage switch tester - Google Patents
High voltage switch tester Download PDFInfo
- Publication number
- CN201225961Y CN201225961Y CNU2008200345736U CN200820034573U CN201225961Y CN 201225961 Y CN201225961 Y CN 201225961Y CN U2008200345736 U CNU2008200345736 U CN U2008200345736U CN 200820034573 U CN200820034573 U CN 200820034573U CN 201225961 Y CN201225961 Y CN 201225961Y
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- circuit
- time
- power supply
- chip microcomputer
- voltage switch
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- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The utility model relates to a test instrument of a high-voltage electrical switch, which comprises a power source, a processor, a data collecting circuit, a display circuit and a printing circuit, wherein, the power source is a rectifying circuit that is connected with an external power source and is connected with a single chip, the display circuit and the printing circuit; the data collecting circuit comprises a collecting device that is arranged on the test device and judges the on-off action time value of the fracture according to the variation of the power level, and a resistance-type displacement sensor that is arranged on a high-voltage on-off contact running circuit, and the collecting device of the action time value and the resistance-type displacement sensor are respectively connected with the single chip through an analog-digital converter; the single chip comprises a memory area of a program that generates an action time, a travel route, a time travel-route dynamic curved line, a time speed travel-route dynamic curved line according to the received data. The instrument can thoroughly and directly obtain the performances of the high-voltage switch, and can thoroughly master the performances of the high-voltage switches.
Description
Technical field
The utility model relates to a kind of testing tool of high-voltage electrical apparatus switch, relates in particular to a kind of tester that detects industrial mechanical high-voltage electric switch performance.
Background technology
Be widely used in the mechanical high-voltage switch in the power domain at present, when operating, the mechanical property of its dynamic and static contact to switch after equipment influential, therefore need a kind of detecting instrument that can detect mechanical type high-voltage switch gear mechanical property, obtain switch performances comprehensively, thereby prevent to cause device damage behind the switch owing to the switch self performance reduces.
Original high voltage switch tester has the intrinsic time detection, the time value that to be switch contact from the instruction accepting to disconnect to moving contact reach design attitude of this detection; Comprise two course of action in this time value, the one, actuation time, claim drop-away time again, promptly from issuing instructions to the time that moving contact separates, the 2nd, close the branch time, promptly two contact separation reach time between design attitude to moving contact, and there is significant meaning the time of decomposing these two actions.Such as, the setting of intrinsic time is 0.5 second, should be 0.1 second actuation time wherein, close the branch time should be 0.4 second; Can cause change actuation time if switch contact mechanism partly breaks down, can cause action to close the variation of branch time if switch contact operation part breaks down.If can detect in above-mentioned two times separately this moment, have great importance to analyzing the switch fault point.
Secondly, also had the stroke index, the debugging of high-voltage switch gear contact driving mechanism was had important significance, and crossed stroke and be meant in branch, the making process, range and stable afterwards the distance between position of switch movable contact in motion process is equivalent to the stroke value above settling position.
In addition, also free travel speed performance graph, two indexs of time speed stroke performance graph, the former is the average velocity that detects the moving contact interior action of scope at any time, the latter detects the average velocity that moving contact moves in any stroke range, these two values embody by the form of curve map, can detect the moving situation of the driving mechanism of tested switch contact at any point-to-point transmission, such as, when unusual waveforms occurring, can recognize the barrier point of driving mechanism motion, be convenient to the driving mechanism of switch is overhauled.
At last, current waveform profile, it is to form by detecting the current value of driving mechanism before the action of driving moving contact; The coil that specifically detects the contact-actuating operation is saturated to the situation of the current value this process of release from magnetizing.Be the operation conditions before testing agency threads off, understand driving mechanism had or not the interruption of service before the contact-actuating action a reference data.
Existing high voltage switch tester does not possess above-mentioned each detection, is not easy to analyze intuitively comprehensively, judge switch performances, can not grasp some faults that switch may imply in time, as is included in the actuation time in the intrinsic time.
The utility model content
The utility model is at deficiency of the prior art, the current parameters of time in a kind of motion that can obtain switch contact, travel parameters, switch contact driving mechanism is provided, and provides the high voltage switch tester that more can grasp switch performance all sidedly according to above-mentioned parameter.
The technical solution of the utility model is: comprise power supply, processor, data acquisition circuit, display circuit and print circuit; Power supply is a rectification circuit that is connected with external power source, it connects single-chip microcomputer, display circuit, print circuit, data acquisition circuit comprises that the level that passes through that connects on the equipment under test just changes the harvester of judging fracture data switch value actuation time and is arranged on the resistance-type displacement transducer of gathering contact travel on the running route of high-voltage switch gear contact, and actuation time, harvester, the resistance-type displacement transducer of value connected single-chip microcomputer by analog to digital converter respectively; Be provided with the memory block that generates the program of the desired value that comprises actuation time, crosses stroke, time travel speed performance graph, time speed stroke performance graph according to the data that received in the single-chip microcomputer.
It also comprises the current waveform profile detection line, and the current waveform profile detection line comprises the Switching Power Supply that is connected between external power source and the coil power, and is connected the current transformer between Switching Power Supply and the coil power; Current transformer, Switching Power Supply connect single-chip microcomputer.
In the data acquisition circuit of the present utility model actuation time value harvester be the connecting line that connects equipment under test and this machine, and being stored in the program that changes judgement time origination point in the single-chip microcomputer by level, the time interval between two level change can reflect the time value of action; Resistance-type displacement transducer in the data acquisition mainly is a numerical value of gathering contact travel; More than two numerical value inputs single-chip microcomputer, program in single-chip microcomputer converses actuation time, mistake stroke and formation time travel speed performance graph, time speed stroke performance graph respectively, increase the function of detector, obtained the index directly perceived of high-voltage switch gear performance condition more comprehensively, intuitively.In addition, also on drive coil, be provided with the collection current transformer and the Switching Power Supply of gathering the coil power current value, have accessiblely before starting with the driving mechanism that obtains switch contact, grasp the performance of high-voltage switch gear more all sidedly.Of the present utility modelly filled up that existing high-voltage switch gear detector can not detect actuation time, crosses stroke and formation time travel speed performance graph, time speed stroke performance graph, and the driving mechanism that can not detect switch contact has the blank of accessible fault before startup, realized intuitively obtaining of above each data.
Description of drawings
Accompanying drawing is a theory diagram of the present utility model
The solid line hollow arrow is a signal transmission line among the figure, and the dotted line hollow arrow is the electric energy transmitting circuit.
Embodiment
As shown in the figure, the utility model comprises power supply, processor, data acquisition circuit, display circuit and print circuit; Power supply is a rectification circuit that is connected with external power source, it connects single-chip microcomputer, display circuit, print circuit, data acquisition circuit comprises that the level that passes through that connects on the equipment under test just changes the harvester of judging fracture data switch value actuation time and is arranged on the resistance-type displacement transducer of gathering contact travel on the running route of high-voltage switch gear contact, and actuation time, harvester, the resistance-type displacement transducer of value connected single-chip microcomputer by analog to digital converter respectively; The collection that be worth actuation time is to be electrically connected each port A, B, C by p-wire, concludes beginning, the end of actuation time by the variation of each port level height; Stroke is gathered, and by being arranged on the resistance-type stroke sensor on the contact position, gathers the stroke distances data.Be provided with the memory block that generates the program of the desired value that comprises actuation time, crosses stroke, time travel speed performance graph, time speed stroke performance graph according to the data that received in the single-chip microcomputer.
It also comprises the current waveform profile detection line, and the current waveform profile detection line comprises the Switching Power Supply that is connected between external power source and the coil power, and is connected the current transformer between Switching Power Supply and the coil power; Current transformer, Switching Power Supply connect single-chip microcomputer, also include in the single-chip microcomputer memory block according to the current transformer data and in conjunction with the harvester of described actuation time of value, the program that resistance-type displacement transducer data generate current waveform profile, and the program adjusted of command switch power supply.
Claims (2)
1, high voltage switch tester comprises power supply, processor, data acquisition circuit, display circuit and print circuit; Power supply is a rectification circuit that is connected with external power source, it connects single-chip microcomputer, display circuit, print circuit, it is characterized in that, data acquisition circuit comprises that the level that passes through that connects on the equipment under test just changes the harvester of judging fracture data switch value actuation time and is arranged on the resistance-type displacement transducer of gathering contact travel on the running route of high-voltage switch gear contact, and actuation time, harvester, the resistance-type displacement transducer of value connected single-chip microcomputer by analog to digital converter respectively; Be provided with the memory block that generates the program of the desired value that comprises actuation time, crosses stroke, time travel speed performance graph, time speed stroke performance graph according to the data that received in the single-chip microcomputer.
2, high voltage switch tester according to claim 1, it is characterized in that, it also comprises the current waveform profile detection line, the current waveform profile detection line comprises the Switching Power Supply that is connected between external power source and the coil power, and is connected the current transformer between Switching Power Supply and the coil power; Current transformer, Switching Power Supply connect single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200345736U CN201225961Y (en) | 2008-04-25 | 2008-04-25 | High voltage switch tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200345736U CN201225961Y (en) | 2008-04-25 | 2008-04-25 | High voltage switch tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201225961Y true CN201225961Y (en) | 2009-04-22 |
Family
ID=40598856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200345736U Expired - Lifetime CN201225961Y (en) | 2008-04-25 | 2008-04-25 | High voltage switch tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201225961Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813752A (en) * | 2010-04-20 | 2010-08-25 | 武汉新电电气技术有限责任公司 | High voltage switch dynamic characteristics tester |
| CN101566670B (en) * | 2008-04-25 | 2012-07-04 | 毕青春 | High-voltage switch tester |
| CN105388418A (en) * | 2015-12-22 | 2016-03-09 | 苏州工业园区海沃科技有限公司 | A circuit breaker action time test device and method based on transformer excitation characteristics |
| CN105953716A (en) * | 2016-06-13 | 2016-09-21 | 中国石油天然气集团公司 | Contact travel testing instrument for 6-kilovolt trolley switch unit |
-
2008
- 2008-04-25 CN CNU2008200345736U patent/CN201225961Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101566670B (en) * | 2008-04-25 | 2012-07-04 | 毕青春 | High-voltage switch tester |
| CN101813752A (en) * | 2010-04-20 | 2010-08-25 | 武汉新电电气技术有限责任公司 | High voltage switch dynamic characteristics tester |
| CN105388418A (en) * | 2015-12-22 | 2016-03-09 | 苏州工业园区海沃科技有限公司 | A circuit breaker action time test device and method based on transformer excitation characteristics |
| CN105388418B (en) * | 2015-12-22 | 2018-07-24 | 苏州工业园区海沃科技有限公司 | Breaker actuation time tester based on mutual inductor excitation feature and its method |
| CN105953716A (en) * | 2016-06-13 | 2016-09-21 | 中国石油天然气集团公司 | Contact travel testing instrument for 6-kilovolt trolley switch unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Yangzhou HuanDian Electric Co., Ltd. Assignor: Bi Qingchun Contract record no.: 2010320000325 Denomination of utility model: Simulation high-voltage switch tester Granted publication date: 20090422 License type: Exclusive License Record date: 20100401 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20090422 Effective date of abandoning: 20080425 |