CN203069685U - Comprehensive test instrument for capacitor or inductor switching test - Google Patents

Comprehensive test instrument for capacitor or inductor switching test Download PDF

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Publication number
CN203069685U
CN203069685U CN 201220425989 CN201220425989U CN203069685U CN 203069685 U CN203069685 U CN 203069685U CN 201220425989 CN201220425989 CN 201220425989 CN 201220425989 U CN201220425989 U CN 201220425989U CN 203069685 U CN203069685 U CN 203069685U
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module
capacitor
resistance
electrically
electric capacity
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CN 201220425989
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Chinese (zh)
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刘全志
张天才
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Wuhan Yikun Admiral Electric Co Ltd
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Wuhan Huagong Admiral Electric Co Ltd
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Abstract

The utility model provides a comprehensive test instrument for capacitor or inductor switching test. The comprehensive test instrument comprises a capacitive voltage divider used for measuring the voltage of a capacitor to be measured, a current sensor used for measuring the current of the capacitor to be measured, a PT sensor, a signal conditioning board, an acquisition board and an industrial control motherboard. The signal conditioning board is electrically connected with the capacitive voltage divider, the current sensor and the PT sensor; the acquisition board is electrically connected with the signal conditioning board; and the industrial control motherboard includes a storage module and an analysis and calculation module, wherein the storage module is used for storing signals transmitted by the acquisition board, and the analysis and calculation module is electrically connected with the storage module and is used for calculating and analyzing the signals stored in the storage module. Voltage and current parameters measured by the capacitive voltage divider, the PT sensor and the current sensor are analyzed and calculated through the analysis and calculation module so as to judge whether a circuit breaker is re-switched on. The operation is simple and convenient; neither a lot of preparatory work nor data processing is needed; and the comprehensive test instrument is fully functional, convenient to use and easy to popularize.

Description

Capacitor or reactor switching test comprehensive tester
[technical field]
The utility model relates to vacuum circuit breaker test field, especially, relates to a kind of capacitor or reactor switching test comprehensive tester.
[background technology]
A large amount of experimental studies of vacuum circuit breaker folding capacitor group show, the phenomenon that exists time-delay bang behind the arc to wear and can high-frequency extinguishing arc during vacuum circuit breaker folding capacitor, the phenomenon of namely restriking.In case restrike, can produce the superpotential of restriking of high amplitude, particularly repeatedly restrike or heterogeneous restriking the safety of its superpotential serious threat paralleling compensating device and system.
In general, the peak value that shoves is closed in the pass when the capacitor group drops into should be above 20 times of the specified dropout current of capacitor group, and closing the sum of fundamental frequencies rate should be greater than 1kHz.Therefore, do not have for the vacuum circuit breaker of folding capacitor group and to restrike or the low rate of restriking just seems particularly important, corresponding also formulation of country has GB1984-2003 " high-voltage AC breaker " standard, and the isolating switch performance of regulation opening-closing capacitor bank must not restriked.
But test at the scene, the present domestic special inspecting equipment that is suitable for the electric system on-the-spot test that still do not have.Some company once did the waveform recording of site test with Nicolet Muitipro transient data analyser produced in USA as Beijing electric power Testing ﹠ Research Institute.Yet because Nicolet Muitipro transient data analyser is amateur testing apparatus, therefore, the on-the-spot workload prepared of needing is big, and the data that record need a lot of professional knowledges to handle, and is not suitable for large-scale popularization.
[utility model content]
In view of this, be necessary to provide a kind of dedicated capacitor that is used for the electric system on-the-spot test or reactor switching test comprehensive tester that is suitable for large-scale popularization, but do not have the dedicated capacitor that is used for the electric system on-the-spot test of large-scale popularization use or the technical matters of reactor switching test comprehensive tester with solution.
For achieving the above object, the utility model provides a kind of capacitor or reactor switching test comprehensive tester, and it comprises for the capacitive divider that testing capacitor is carried out voltage measurement, for the current sensor that testing capacitor is carried out current measurement, for PT sensor, signal regulating panel, collection plate and industrial control mainboard that testing capacitor bus bar side voltage is measured; Signal regulating panel all is electrically connected with capacitive divider, current sensor and PT sensor; Collection plate is electrically connected with signal regulating panel; Industrial control mainboard comprises storage module and analytical calculation module, and storage module is preserved the signal that collection plate sends; The analytical calculation module is electrically connected with storage module, and the signal of preserving in the storage module is carried out computational analysis.
Further, signal regulating panel comprises the capacitance-resistance bleeder circuit, and capacitive divider is connected with the capacitance-resistance bleeder circuit by a concentric cable.
Further, capacitive divider comprises high-voltage arm electric capacity and the low-voltage arm electric capacity that is electrically connected testing capacitor, high-voltage arm electric capacity and low-voltage arm capacitances in series, and low-voltage arm capacity earth, first end of concentric cable connects the node between high-voltage arm electric capacity and the low-voltage arm electric capacity.
Further, also be in series with first resistance and second resistance between high-voltage arm electric capacity and the low-voltage arm electric capacity successively, first end of concentric cable is electrically connected node between first resistance and second resistance by the 3rd resistance.
Further, capacitive divider also comprises first discharge tube and second discharge tube, first discharge tube and the second discharge tube reverse parallel connection form a parallel branch, and first end of parallel branch connects node between first resistance and second resistance, the second end ground connection of parallel branch.
Further, the capacitance-resistance bleeder circuit comprises first branch road and second branch road that is connected in parallel, and first branch road comprises first electric capacity and the 4th resistance of mutual series connection; Second branch road comprises second electric capacity, the 5th resistance, the 6th resistance and the 3rd electric capacity of series connection successively, and first branch road is connected second end of concentric cable, the second end ground connection after first branch road and the second branch road parallel connection with first end after the second branch road parallel connection.
Further, signal regulating panel also comprises the signal condition module that is connected with the capacitance-resistance bleeder circuit, and conditioning module is in parallel with the 6th resistance and the 3rd electric capacity.
Further, collection plate comprises the AD module that is electrically connected with the signal condition module, the FPGA module that is electrically connected with the AD module, the RAM module and the usb interface module that are electrically connected with the FPGA module; Industrial control mainboard also comprises the interface module that is electrically connected with usb interface module.
Further, industrial control mainboard also comprises output module and the display module that is electrically connected with output module, and interface module all is electrically connected with storage module with output module.
Further, current sensor and PT sensor all are electrically connected with signal regulating panel by a concentric cable.
The beneficial effect that the technical scheme that the utility model embodiment provides is brought is: when using capacitor of the present utility model or reactor switching test comprehensive tester, only need pass through capacitive divider, voltage when current sensor and bus PT come the action of sensing isolating switch switching, current parameters, and with these parameters successively by flowing to industrial control mainboard behind signal regulating panel and the collection plate, whether can declare isolating switch by the analytical calculation of master control mainboard can restrike, simple to operate, convenient, need not a large amount of preliminary work, and also need not to carry out data and handle perfect in shape and function, easy to use, be convenient to promote the use of.
Except purpose described above, feature and advantage, the utility model also has other purpose, feature and advantage.With reference to figure, the utility model is described in further detail below.
[description of drawings]
The accompanying drawing that constitutes the application's a part is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not constitute improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the capacitor of the utility model preferred embodiment or the modular structure synoptic diagram of reactor switching test comprehensive tester;
Fig. 2 is capacitive divider among Fig. 1 and the structural representation of signal regulating panel;
Fig. 3 is the structural representation of the collection plate among Fig. 1.
[embodiment]
For understanding the utility model better, the embodiment to utility model is described in detail below with reference to accompanying drawing.
Please refer to Fig. 1, the capacitor that the utility model preferred embodiment provides or reactor switching test comprehensive tester comprise capacitive divider 1, current sensor 3, the PT sensor 5 to the voltage measurement of testing capacitor bus bar side, signal regulating panel 7, the collection plate 8 that is electrically connected with signal regulating panel 7 and the industrial control mainboard 9 that is electrically connected with collection plate 8.Wherein, signal regulating panel 7, collection plate 8 and industrial control mainboard 9 are integrated in the main frame 4.1 pair of testing capacitor of capacitive divider carries out voltage measurement and dividing potential drop.
Wherein, capacitive divider 1, current sensor 3, PT sensor 5 all are electrically connected with signal regulating panel 7 by concentric cable 2.When capacitor side high-tension electricity after capacitive divider 1 dividing potential drop, give signal regulating panel 7 by concentric cable 2 with the low tension signal after the dividing potential drop.Current sensor 3 is used for capacitor to be measured is carried out current measurement, and sends this current signal that records to signal regulating panel 7 by concentric cable 2.The bus bar side voltage that PT sensor 5 is measured flows to signal regulating panel 7 by concentric cable 2.Signal regulating panel 7 sends collection plate 8 to the voltage received and current signal after treatment; These signal datas that collection plate 8 will be received send industrial control mainboard 9 to, industrial control mainboard 9 is kept at hard disk with signal data, and obtain ratio, inrush phenomenon multiple, the inrush phenomenon frequency of isolating switch switching each phase transient peaks of when action and stable state peak value by analytical calculation, thereby judging automatically whether isolating switch has restrikes.Preferably, in the present embodiment, current sensor 3 is the pincerlike current sensor of open type.
In the present embodiment, industrial control mainboard 9 comprises interface module 91, storage module 93, analytical calculation module 95, output module 97 and display module 99.Interface module 91 is used for connecting collection plate 8, thereby accepts the signal of collection plate 8; In addition, interface module 91 also can be used for the copy of realization data such as external USB flash disk, portable hard drive and uploads.Storage module 93 is electrical connection interface module 91 and analytical calculation modules 95 respectively, are used for preserving by the data that interface module 91 connects, and are delivered to analytical calculation module 95 and carry out analytical calculation.In addition, the various data that obtain after analytical calculation module 95 analytical calculations and conclusion all are delivered to storage module 93 and preserve.Display module 99 is electrically connected output module 97, and output module 97 electrical connection memory modules 93, is used for the data in the memory module 93 and conclusions are exported and shown.The signal data that analytical calculation module 95 sends collection plate 8, calculate all kinds of parameter record such as voltage, electric current ripple, and with these the record ripples be presented on the same time coordinate axle, again by analyzing ratio, inrush phenomenon multiple, the inrush phenomenon frequency of each phase transient peaks and stable state peak value, judge automatically whether this isolating switch has to restrike.In the present embodiment, interface module 91 is USB interface or network interface; Display module 99 is the very color liquid crystal display of giant-screen and touch-screen.By managing display module 99, function such as the waveform of above-mentioned record ripple is enlarging or reducing, mobile, overlapping and hide, easy to use, reliability is high.
Please in conjunction with reference Fig. 2, capacitive divider 1 comprises high-voltage arm capacitor C 1, the first discharge tube FR1, the second discharge tube FR2, first resistance R 1, second resistance R 2 and the 3rd resistance R 3.High-voltage arm capacitor C 1, first resistance R 1, second resistance R 2, low-voltage arm capacitor C 2 are connected in series successively, and low-voltage arm capacitor C 2 ground connection.Wherein, first resistance R 1 and second resistance R 2 are serially connected between high-voltage arm capacitor C 1 and the low-voltage arm capacitor C 2.First end of the 3rd resistance R 3 connects the node between first resistance R 1 and second resistance R 2, and second end of the 3rd resistance R 3 is connected with first end of concentric cable 2.The first discharge tube FR1, the second discharge tube FR2 reverse parallel connection form a parallel branch; and first end of this parallel branch connects the node between first resistance R 1 and second resistance R 2; the second end ground connection of this parallel branch; like this; when the voltage at the first discharge tube FR1 or the second discharge tube FR2 two ends exceeds its protection specification value; short circuit phenomenon can appear in its inside, and sponges the high pressure of crossing of input, thus protection high-voltage arm capacitor C 1 or low-voltage arm capacitor C 2.High-voltage arm capacitor C 1 and low-voltage arm capacitor C 2 are electrically connected the two ends of measured capacitor respectively.Preferably, in the present embodiment, the first discharge tube FR1, the second discharge tube FR2 are ceramic discharge tube.
Signal regulating panel 7 comprises the capacitance-resistance bleeder circuit 71 that is electrically connected with second end of concentric cable 2 and the signal condition module 73 that is electrically connected with capacitance-resistance bleeder circuit 71.Capacitance-resistance bleeder circuit 71 comprises first capacitor C 4, second capacitor C 5, the 3rd capacitor C 6, the 4th resistance R 4, the 5th resistance R 5 and the 6th resistance R 6.Wherein, first capacitor C 4 and the 4th resistance R 4 are connected into first branch road mutually; Second capacitor C 5, the 5th resistance R 5, the 6th resistance R 6 and the 3rd capacitor C 6 are connected into second branch road successively.Wherein, form parallel circuit after first branch road and the second branch road parallel connection, and first end of this parallel circuit is connected the second end ground connection of this parallel circuit with second end of concentric cable 2.Signal condition module 73 is in parallel with the 6th resistance R 6 and the 3rd capacitor C 6.Behind measured capacitor side high voltage electricity process capacitive divider 1 bleeder circuit, voltage is reduced to 100V with interior low pressure; This low tension signal sends signal condition module 73 to after the capacitance-resistance bleeder circuit 71 that concentric cable 2 is sent to signal regulating panel 7 carries out second divided voltage, give collection plate 8 through signal condition module 73 conditioned signals.By capacitive divider 1, can satisfy 10kV and 35kV capacitor simultaneously.
Please in conjunction with referring to Fig. 3, in the present embodiment, collection plate 8 is high speed acquisition board.Wherein, collection plate 8 comprises AD module 81, the FPGA module 83 that is electrically connected with AD module 81, the RAM module 85 that is electrically connected with FPGA module 83 and usb interface module 87.AD module 81 is electrically connected with signal condition module 73, is converted into digital signal circuit with the analog electrical signal that signal condition module 73 is transmitted, and this digital signal circuit is sent to FPGA module 83.FPGA module 83 directly deposits the digital signal of accepting in RAM module 85.Usb interface module 87 is electrically connected the interface module 91 of industrial control mainboard 9, by usb interface module 87, the digital signal that collection plate 8 is gathered and is stored in the RAM module 85 can be delivered to industrial control mainboard 9, and obtain isolating switch by industrial control mainboard 9 computational analysiss and whether can restrike, and by the display module 99 of industrial control mainboard 9 process and the conclusion of analyzing shown.
Obvious, in other embodiments, capacitor of the present utility model or reactor switching test comprehensive tester can also be used for the switching test of reactor is tested.
When using capacitor of the present utility model or reactor switching test comprehensive tester, voltage, current parameters in the time of only need coming the action of sensing isolating switch switching by capacitive divider 1, current sensor 3 and PT sensor 5, and with these parameters successively by flowing to industrial control mainboard 9 behind signal regulating panel 7 and the collection plate 8, whether can declare isolating switch by the analytical calculation of master control mainboard 9 can restrike, simple, convenient, need not a large amount of preliminary work, and also need not to carry out data and handle, perfect in shape and function, easy to use, be convenient to promote the use of.
The above embodiment has only expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.

Claims (10)

1. a capacitor or reactor switching test comprehensive tester, it comprise for the capacitive divider (1) that testing capacitor is carried out voltage measurement, be used for to described testing capacitor carry out current measurement current sensor (3), be used for PT sensor (5), signal regulating panel (7), collection plate (8) and industrial control mainboard (9) that described testing capacitor bus bar side voltage is measured;
Described signal regulating panel (7) all is electrically connected with described capacitive divider (1), described current sensor (3) and described PT sensor (5);
Described collection plate (8) is electrically connected with described signal regulating panel (7);
Described industrial control mainboard (9) comprises storage module (93) and analytical calculation module (95), and described storage module (93) is preserved the signal that described collection plate (8) sends; Described analytical calculation module (95) is electrically connected with described storage module (93), and the signal of preserving in the described storage module (93) is carried out computational analysis.
2. capacitor according to claim 1 or reactor switching are tested comprehensive tester, it is characterized in that: described signal regulating panel (7) comprises capacitance-resistance bleeder circuit (71), and described capacitive divider (1) is connected with described capacitance-resistance bleeder circuit (71) by a concentric cable (2).
3. capacitor according to claim 2 or reactor switching are tested comprehensive tester, it is characterized in that: described capacitive divider (1) comprises high-voltage arm electric capacity (C1) and the low-voltage arm electric capacity (C2) that is electrically connected described testing capacitor, described high-voltage arm electric capacity (C1) and described low-voltage arm electric capacity (C2) series connection, and described low-voltage arm electric capacity (C2) ground connection, first end of described concentric cable (2) connect the node between described high-voltage arm electric capacity (C1) and the described low-voltage arm electric capacity (C2).
4. capacitor according to claim 3 or reactor switching are tested comprehensive tester, it is characterized in that: also be in series with first resistance (R1) and second resistance (R2) between described high-voltage arm electric capacity (C1) and the described low-voltage arm electric capacity (C2) successively, first end of described concentric cable (2) is electrically connected node between described first resistance (R1) and described second resistance (R2) by the 3rd resistance (R3).
5. capacitor according to claim 4 or reactor switching are tested comprehensive tester, it is characterized in that: described capacitive divider (1) also comprises first discharge tube (FR1) and second discharge tube (FR2), described first discharge tube (FR1) and described second discharge tube (FR2) reverse parallel connection form a parallel branch, and first end of described parallel branch connects node between described first resistance (R1) and described second resistance (R2), the second end ground connection of described parallel branch.
6. capacitor according to claim 2 or reactor switching are tested comprehensive tester, it is characterized in that: described capacitance-resistance bleeder circuit (71) comprises first branch road and second branch road that is connected in parallel, and described first branch road comprises first electric capacity (C4) and the 4th resistance (R4) of mutual series connection; Described second branch road comprises second electric capacity (C5), the 5th resistance (R5), the 6th resistance (R6) and the 3rd electric capacity (C6) of series connection successively, and described first branch road is connected second end of described concentric cable (2), the second end ground connection after described first branch road and the described second branch road parallel connection with first end after the described second branch road parallel connection.
7. capacitor according to claim 6 or reactor switching are tested comprehensive tester, it is characterized in that: described signal regulating panel (7) also comprises the signal condition module (73) that is connected with described capacitance-resistance bleeder circuit (71), and described conditioning module (73) is in parallel with described the 6th resistance (R6) and described the 3rd electric capacity (C6).
8. capacitor according to claim 7 or reactor switching are tested comprehensive tester, and it is characterized in that: described collection plate (8) comprises the AD module (81) that is electrically connected with described signal condition module (73), the FPGA module (83) that is electrically connected with described AD module (81), the RAM module (85) that is electrically connected with described FPGA module (83) and usb interface module (87); Described industrial control mainboard (9) also comprises the interface module (91) that is electrically connected with described usb interface module (87).
9. capacitor according to claim 8 or reactor switching are tested comprehensive tester, it is characterized in that: described industrial control mainboard (9) also comprises output module (97) and the display module (99) that is electrically connected with described output module (97), and described interface module (91) all is electrically connected with described storage module (93) with described output module (97).
10. capacitor according to claim 1 or reactor switching are tested comprehensive tester, and it is characterized in that: described current sensor (3) and described PT sensor (5) all are electrically connected with signal regulating panel (7) by a concentric cable (2).
CN 201220425989 2012-08-27 2012-08-27 Comprehensive test instrument for capacitor or inductor switching test Active CN203069685U (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103901300A (en) * 2014-03-14 2014-07-02 重庆大学 Switching operation test system of 10 kV parallel capacitor
CN105093005A (en) * 2014-12-18 2015-11-25 华北电力大学 Simulated full-load operation test platform of intelligent capacitor groups
CN105223457A (en) * 2014-05-29 2016-01-06 国网山西省电力公司电力科学研究院 The device and method that extra-high voltage reactor earth fault judges and processes, eliminates
CN106680701A (en) * 2016-11-25 2017-05-17 云南电网有限责任公司电力科学研究院 Circuit breaker re-ignition phenomenon detection device and method
CN107102260A (en) * 2017-05-12 2017-08-29 国网天津市电力公司 A kind of full-automatic switching pilot system of capacitor bank
CN111257663A (en) * 2018-12-03 2020-06-09 西安高压电器研究院有限责任公司 Switching test circuit

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103901300A (en) * 2014-03-14 2014-07-02 重庆大学 Switching operation test system of 10 kV parallel capacitor
CN105223457A (en) * 2014-05-29 2016-01-06 国网山西省电力公司电力科学研究院 The device and method that extra-high voltage reactor earth fault judges and processes, eliminates
CN105093005A (en) * 2014-12-18 2015-11-25 华北电力大学 Simulated full-load operation test platform of intelligent capacitor groups
CN105093005B (en) * 2014-12-18 2018-07-10 华北电力大学 Intelligent capacitor group simulates oepration at full load test platform
CN106680701A (en) * 2016-11-25 2017-05-17 云南电网有限责任公司电力科学研究院 Circuit breaker re-ignition phenomenon detection device and method
CN107102260A (en) * 2017-05-12 2017-08-29 国网天津市电力公司 A kind of full-automatic switching pilot system of capacitor bank
CN107102260B (en) * 2017-05-12 2019-09-27 国网天津市电力公司 A kind of full-automatic switching pilot system of capacitor group
CN111257663A (en) * 2018-12-03 2020-06-09 西安高压电器研究院有限责任公司 Switching test circuit

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C14 Grant of patent or utility model
CP03 Change of name, title or address

Address after: 430000 East Lake science and Technology Park, East Lake Development Zone, Wuhan, Hubei

Patentee after: Wuhan Hua Gong Xian Jian Electric Co., Ltd.

Address before: 430040 East Lake science and Technology Park, East Lake Development Zone, Wuhan, Hubei

Patentee before: Wuhan Huagong Admiral Electric Co., Ltd.

TR01 Transfer of patent right

Effective date of registration: 20181029

Address after: 430000 Fenghuang Industrial Park, 52 Liufang Avenue, Donghu New Technology Development Zone, Wuhan City, Hubei Province

Patentee after: Wuhan Yi Kun Xian Jian Electric Co., Ltd.

Address before: 430000 East Lake science and Technology Park, East Lake Development Zone, Wuhan, Hubei

Patentee before: Wuhan Hua Gong Xian Jian Electric Co., Ltd.

CP03 Change of name, title or address
TR01 Transfer of patent right