CN103728555A - Temperature rise test circuit of low-voltage complete set switchgear and test method thereof - Google Patents
Temperature rise test circuit of low-voltage complete set switchgear and test method thereof Download PDFInfo
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- CN103728555A CN103728555A CN201310710420.4A CN201310710420A CN103728555A CN 103728555 A CN103728555 A CN 103728555A CN 201310710420 A CN201310710420 A CN 201310710420A CN 103728555 A CN103728555 A CN 103728555A
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Abstract
The invention discloses a temperature rise test circuit of a low-voltage complete set switchgear. The temperature rise test circuit comprises a power supply general incoming line switch, a set of program control alternating stabilized current supply, an intelligent temperature polling instrument, a set of intelligent isolated temperature transmitter, a background monitor and a tested product low-voltage complete set switchgear body. The temperature rise test circuit of the low-voltage complete set switchgear has the advantages that the defect that current drift caused by temperature rise of a copper resistor needs to be adjusted in real time is overcome, however the defect cannot be overcome in a traditional method, the modular construction is adopted in the program control alternating stabilized current supply, configuration is flexible, the size is small, the weight is low, moving is convenient, output currents are stable, time is short, the checking speed is increased, the detection precision is improved, the background monitor is managed by special software, the working efficiency is improved, energy consumption is reduced, cost is reduced, the using effect is good, and popularization is facilitated.
Description
Technical field
The invention belongs to electron electric power and detect experimental technique field, especially temperature rise test loop and the method for testing thereof of low-voltage complete switch equipment, the low-voltage complete switch equipment that is specially adapted to the following current class of 6300A detects institute, test center or manufacturing plant in national level and carries out product temperature rise performance test.
Background technology
The most special with temperature rise test in all pattern pilot projects of low-voltage complete switch equipment, in low-voltage complete switch equipment, particularly drawer-type switch cabinet, nearly more than 20 of its branch circuits except main circuit, according to < < GB 7251 low-voltage complete switch equipments and opertaing device > >, the requirement of < < GB/T 10233 low-voltage complete switch equipments and control panel fundamental test method > >, the main circuit of switchgear assembly and branch circuit must lead to rated current simultaneously and carry out temperature rise test, the shortcoming of low-voltage complete switch equipment temperature rise test is: 1. the time is longer, middle-size and small-size process of the test needs 7, 8 hours, and large-scale test needs tens hours even for more time, 2. electric energy expends greatly, therefore many producers tested at night in order to keep away peak of power consumption, 3. process of the test dullness is uninteresting, measures repeatedly for a long time temperature value.
At present, domestic conventional low switchgear assembly temperature-raising experimental method extensively adopts: at equipment under test power input, arrange a large capacity multiple magnetic circuit transformer, by the unsteady flow of transformer, directly equipment under test is applied to one and exchange low-voltage (8～12V), large electric current (4000～10000A) power supply, then the each branch of equipment under test feed out loop connect variohm or current regulator as load to obtain measuring current, by regulating variohm or current regulator to make output current reach setting current value, because the large volume of capacity multiple magnetic circuit transformer equipment own is large, mix after variohm or current regulator load, the shortcoming causing is that floor area is very large, to lab space, require high, and equipment heaviness can not move, cannot carry out many complete equipments detects simultaneously, simultaneously, due to the fluctuation of line voltage, in current loop, lead resistance changes, the resistance heating of load own changes, cause each branch current shakiness, measuring current changes thereupon, therefore, the frequent regulating resistor of operating personnel's palpus or current transformer carry out steady current, the time-consuming energy that takes, precision still cannot guarantee, and can produce a large amount of perceptual reactive loss under low-voltage, high-current, electric energy directly consumes at copper bus-bar, on resistor or current transformer, not only affect power grid quality, but also cause the huge waste of the energy, visible, legacy equipment temperature rise test has equipment volume large, test length consuming time, complicated operation, personnel ' s efficiency is low, testing expense is higher, the fatal shortcomings such as equipment failure rate height and flexibility of operation are poor.
Along with the development of detection technique, survey instrument is also in development and progress, the present situation of traditional measurement application has been difficult to adapt to current technical development needs, complete the transformation from analogue technique to digital technology, the digitizing of round Realization testing apparatus, intellectuality are the trend of modern automation instrument future development.Therefore, research and develop and a set ofly meet New Low Voltage switchgear assembly temperature rise test loop and the method for testing that testing agency's testing requirements, perfect in shape and function, intelligent degree is high and there is very practical value.
Summary of the invention
The present invention is directed to the shortcoming of above-mentioned prior art, a kind of temperature rise test loop and method of testing thereof of low-voltage complete switch equipment are provided, not only can realize tested many main circuits low-voltage complete switch equipment is carried out to effective temperature rise test, process of the test is realized to Automatic Control, can also in the temperature rise test of other electrical equipment such as the single-phase of separate unit or three-phase headstock, panel box, apply, make test more there is integrality, accuracy.
The present invention solves the technical scheme that its technical matters adopts:
The temperature rise test loop of this low-voltage complete switch equipment, comprises power supply total input-wire switch, one group of program control ac current stabilized power source, Intelligent temperature patrol detector, one group of intelligence isolated temperature transmitter, background monitoring machine, test specimen low-voltage complete switch equipment, power supply total input-wire switch is connected with each program control ac current stabilized power source respectively, each program control ac current stabilized power source is all connected with test specimen low-voltage complete switch equipment, each intelligent isolated temperature transmitter is all connected with test specimen low-voltage complete switch equipment, each intelligent isolated temperature transmitter is all connected with Intelligent temperature patrol detector, Intelligent temperature patrol detector, each program control ac current stabilized power source is connected with background monitoring machine, and test specimen low-voltage complete switch equipment comprises input total input-wire switch, one group of switch contact, one group of busbar tie point, one group of branch road feeder switch, total busbar, described input total input-wire switch short circuit, intelligent isolated temperature transmitter comprises High Accuracy Thermocouple Temperature, High Accuracy Thermocouple Temperature respectively with one group of switch contact, one group of busbar tie point connects, and one group of program control ac current stabilized power source is connected with one group of branch road feeder switch respectively.
Program control ac current stabilized power source comprises Great Power Adjuster, current transformer, touch liquid crystal display, Programmable Logic Controller.
The method of testing in the temperature rise test loop of above-mentioned low-voltage complete switch equipment is: power supply total input-wire switch is dropped into power transmission, one group of program control ac current stabilized power source and Intelligent temperature patrol detector drop into respectively power transmission, according to the current value in the each branch switch of test specimen low-voltage complete switch equipment loop, set, one group of program control ac current stabilized power source is carried out respectively to current parameters setting, and according to standard-required, Intelligent temperature patrol detector is carried out to temperature rise setting parameter, after setting, by the input total input-wire switch of test specimen low-voltage complete switch equipment, one group of switch contact, one group of busbar tie point, one group of branch road feeder switch puts into operation, again one group of program control ac current stabilized power source and Intelligent temperature patrol detector are put into operation respectively, one group of program control ac current stabilized power source is by the automatically quick constant unidirectional or three-phase low-voltage alternating current of continuous wave output of setting value, total busbar electric current superposes automatically, until test specimen low-voltage complete switch equipment temperature stabilization, Intelligent temperature patrol detector and the one group of real-time survey record temperature variation of intelligence isolated temperature transmitter data, and data are sent to background monitoring machine, after the relevant temperature rise data of background monitoring machine reception test specimen low-voltage complete switch equipment, automatically form form, complete the test in temperature rise test loop.
Temperature rise test loop and the method for testing thereof of low-voltage complete switch equipment of the present invention, the method for falling input short of employing is carried out low-voltage complete switch equipment temperature rise test, can make the power supply capacity minimum of needs, makes to try piezoelectric voltage minimum.
Principle of work of the present invention is: adopt many to have the program control ac current stabilized power source of the constant AC power of output as the testing apparatus of test specimen low-voltage complete switch equipment, can be according to the automatically quick constant single-phase or three-phase low-voltage alternating current of continuous wave output of setting value, wherein program control ac current stabilized power source comprises Great Power Adjuster, current transformer, touch liquid crystal display, Programmable Logic Controller, realized digital, intelligentized effect, adopt Intelligent temperature patrol detector and the supporting intelligent isolated temperature transmitter with High Accuracy Thermocouple Temperature thereof, to full-automatic collection and the detection of the each branch road test point of test specimen low-voltage complete switch equipment temperature, and adopt background monitoring machine to realize the fully automated management to test specimen low-voltage complete switch equipment temperature rise test process monitoring, the wherein direct short circuit of test specimen low-voltage complete switch equipment main circuit input end, it is the direct short circuit of input total input-wire switch of test specimen low-voltage complete switch equipment, and by many program control ac current stabilized power sources, be connected on respectively the feeder switch loop, each output branch road of test specimen low-voltage complete switch equipment, according to rated current, input constant alternating current, and automatically superpose to reach the object of temperature rise test at total busbar.
The effect that the present invention is useful is: temperature rise test loop and the method for testing thereof of low-voltage complete switch equipment of the present invention, having overcome insurmountable copper resistance temperature rise in classic method causes electric current drift to need the shortcoming of adjusting in real time, program control ac current stabilized power source adopts modular construction, flexible configuration, volume is little, lightweight, conveniently moving, and the outputting current steadily time is short, accelerated verification speed, improved accuracy of detection, background monitoring machine adopts special software administration, improved work efficiency, and constant-current supply output voltage is low, energy-saving effect improves, reduced energy consumption, reduced cost, simple to operate, control performance is strong, equipment failure rate is low, result of use is good, be beneficial to popularization.
Accompanying drawing explanation
Fig. 1 is the systematic schematic diagram of the embodiment of the present invention;
Fig. 2 is the system chart of the embodiment of the present invention.
Description of reference numerals: power supply total input-wire switch 1, program control ac current stabilized power source 2, Intelligent temperature patrol detector 3, intelligent isolated temperature transmitter 4, background monitoring machine 5, test specimen low-voltage complete switch equipment 6, input total input-wire switch 7, switch contact 8, busbar tie point 9, branch road feeder switch 10, total busbar 11, High Accuracy Thermocouple Temperature 12, Great Power Adjuster 13, current transformer 14, touch LCD screen 15, Programmable Logic Controller 16.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
With reference to accompanying drawing, the temperature rise test loop of this low-voltage complete switch equipment, comprise power supply total input-wire switch 1, one group of program control ac current stabilized power source 2, Intelligent temperature patrol detector 3, one group of intelligence isolated temperature transmitter 4, background monitoring machine 5, test specimen low-voltage complete switch equipment 6, power supply total input-wire switch 1 is connected with each program control ac current stabilized power source 2 respectively, each program control ac current stabilized power source 2 is all connected with test specimen low-voltage complete switch equipment 6, each intelligent isolated temperature transmitter 4 is all connected with test specimen low-voltage complete switch equipment 6, each intelligent isolated temperature transmitter 4 is all connected with Intelligent temperature patrol detector 3, Intelligent temperature patrol detector 3, each program control ac current stabilized power source 2 is connected with background monitoring machine 5, test specimen low-voltage complete switch equipment 6 comprises input total input-wire switch 7, one group of switch contact 8, one group of busbar tie point 9, one group of branch road feeder switch 10, total busbar 11, input total input-wire switch 7 short circuits, intelligence isolated temperature transmitter 4 comprises High Accuracy Thermocouple Temperature 12, High Accuracy Thermocouple Temperature 12 respectively with one group of switch contact 8, one group of busbar tie point 9 connects, one group of program control ac current stabilized power source 2 is connected with one group of branch road feeder switch 10 respectively.
Program control ac current stabilized power source 2 comprises Great Power Adjuster 13, current transformer 14, touch liquid crystal display 15, Programmable Logic Controller 16.
The method of testing in the temperature rise test loop of above-mentioned low-voltage complete switch equipment is: power supply total input-wire switch 1 is dropped into power transmission, one group of program control ac current stabilized power source 2 and Intelligent temperature patrol detector 3 drop into respectively power transmission, according to the current value in the each branch road feeder switch of test specimen low-voltage complete switch equipment 10 loops, set, one group of program control ac current stabilized power source 2 is carried out respectively to current parameters setting, and according to standard-required, Intelligent temperature patrol detector 3 is carried out to temperature rise setting parameter, after setting, by the input total input-wire switch 7 of test specimen low-voltage complete switch equipment 6, one group of switch contact 8, one group of busbar tie point 9, one group of branch road feeder switch 10 puts into operation, again one group of program control ac current stabilized power source 2 and Intelligent temperature patrol detector 3 are put into operation respectively, one group of program control ac current stabilized power source 2 is by the automatically quick constant unidirectional or three-phase low-voltage alternating current of continuous wave output of setting value, total busbar 11 electric currents superpose automatically, until test specimen low-voltage complete switch equipment 6 temperature stabilizations, Intelligent temperature patrol detector 3 and one group of intelligence isolated temperature transmitter 2 real-time survey record temperature variation data, and data are sent to background monitoring machine 5, background monitoring machine 5 forms form after receiving the relevant temperature rise data of test specimen low-voltage complete switch equipment 6 automatically, complete the test in temperature rise test loop.
Intelligent temperature patrol detector 3 and one group of intelligent isolated temperature transmitter 4 with High Accuracy Thermocouple Temperature 12 support the use, survey record temperature variation data in real time, and send background monitoring machine 5 by data bus, obtain the relevant temperature rise data of test specimen low-voltage complete switch equipment 6, automatically form form, be convenient to analyze and judge.
In background monitoring machine 5, there is temperature rise test macro management software, be specifically designed to the fully automated management of realizing the temperature rise test process monitoring to test specimen low-voltage complete switch equipment.
Program control ac current stabilized power source adopts modular construction, and flexible configuration, volume are little, lightweight.
Feature of the present invention is: overcome insurmountable copper resistance temperature rise in classic method and caused electric current drift to need the shortcoming of adjusting in real time, program control ac current stabilized power source adopts modular construction, flexible configuration, volume is little, lightweight, conveniently moving, and the outputting current steadily time is short, accelerated verification speed, improved accuracy of detection, background monitoring machine adopts special software administration, improved work efficiency, and constant-current supply output voltage is low, energy-saving effect improves, reduced energy consumption, reduced cost, simple to operate, control performance is strong, equipment failure rate is low, result of use is good, be beneficial to popularization.
Although the present invention illustrates and describes by reference to preferred embodiment,, those skilled in the art should understand, and in the scope of claims, can do the various variation in form and details.
Claims (3)
1. the temperature rise test loop of a low-voltage complete switch equipment, it is characterized in that: comprise power supply total input-wire switch (1), one group of program control ac current stabilized power source (2), Intelligent temperature patrol detector (3), one group of intelligence isolated temperature transmitter (4), background monitoring machine (5), test specimen low-voltage complete switch equipment (6), described power supply total input-wire switch (1) is connected with each program control ac current stabilized power source (2) respectively, described each program control ac current stabilized power source (2) is all connected with test specimen low-voltage complete switch equipment (6), described each intelligent isolated temperature transmitter (4) is all connected with test specimen low-voltage complete switch equipment (6), described each intelligent isolated temperature transmitter (4) is all connected with Intelligent temperature patrol detector (3), described Intelligent temperature patrol detector (3), each program control ac current stabilized power source (2) is connected with background monitoring machine (5), described test specimen low-voltage complete switch equipment (6) comprises input total input-wire switch (7), one group of switch contact (8), one group of busbar tie point (9), one group of branch road feeder switch (10), total busbar (11), described input total input-wire switch (7) short circuit, described intelligent isolated temperature transmitter (4) comprises High Accuracy Thermocouple Temperature (12), described High Accuracy Thermocouple Temperature (12) respectively with one group of switch contact (8), one group of busbar tie point (9) connects, described one group of program control ac current stabilized power source (2) is connected with one group of branch road feeder switch (10) respectively.
2. the temperature rise test loop of low-voltage complete switch equipment according to claim 1, is characterized in that: described program control ac current stabilized power source (2) comprises Great Power Adjuster (13), current transformer (14), touch liquid crystal display (15), Programmable Logic Controller (16).
3. the method for testing in the temperature rise test loop of low-voltage complete switch equipment according to claim 1 and 2, it is characterized in that: power supply total input-wire switch (1) is dropped into power transmission, one group of program control ac current stabilized power source (2) and Intelligent temperature patrol detector (3) drop into respectively power transmission, according to the current value in the each branch road feeder switch of test specimen low-voltage complete switch equipment (10) loop, set, one group of program control ac current stabilized power source (2) is carried out respectively to current parameters setting, and according to standard-required, Intelligent temperature patrol detector (3) is carried out to temperature rise setting parameter, after setting, by the input total input-wire switch (7) of test specimen low-voltage complete switch equipment (6), one group of switch contact (8), one group of busbar tie point (9), one group of branch road feeder switch (10) puts into operation, again one group of program control ac current stabilized power source (2) and Intelligent temperature patrol detector (3) are put into operation respectively, one group of program control ac current stabilized power source (2) is by the automatically quick constant unidirectional or three-phase low-voltage alternating current of continuous wave output of setting value, total busbar (11) electric current superposes automatically, until test specimen low-voltage complete switch equipment (6) temperature stabilization, Intelligent temperature patrol detector (3) and one group of intelligence isolated temperature transmitter (2) survey record temperature variation data in real time, and data are sent to background monitoring machine (5), after the relevant temperature rise data of background monitoring machine (5) reception test specimen low-voltage complete switch equipment (6), automatically form form, complete the test in temperature rise test loop.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104065076A (en) * | 2014-07-15 | 2014-09-24 | 浙江方圆电气设备检测有限公司 | Temperature rise test reverse power supply system |
| CN105044492A (en) * | 2015-06-24 | 2015-11-11 | 温州大学 | Low-voltage electrical complete switch equipment temperature rise test system |
| CN105093099A (en) * | 2014-05-09 | 2015-11-25 | 现代自动车株式会社 | Apparatus and method for detecting faults of battery heating system and relays |
| CN106093772A (en) * | 2016-08-22 | 2016-11-09 | 中华人民共和国东莞出入境检验检疫局 | A kind of electrical switch temperature rise detecting system and method |
| CN106443096A (en) * | 2016-11-23 | 2017-02-22 | 国网辽宁省电力有限公司电力科学研究院 | Full automatic temperature rise test low-voltage big-current generator and control method thereof |
| CN107505487A (en) * | 2017-08-28 | 2017-12-22 | 浙江方圆电气设备检测有限公司 | A kind of method, system and the low voltage complete set of temperature rise experiment |
| CN109669062A (en) * | 2017-10-17 | 2019-04-23 | 许继集团有限公司 | A kind of automatic detection elastic test macro of bolt |
| CN110261692A (en) * | 2019-04-11 | 2019-09-20 | 浙江三辰电器股份有限公司 | Bus main line thermal cycle test device and its test method |
| CN110346713A (en) * | 2019-07-30 | 2019-10-18 | 国网浙江省电力公司宁波供电公司 | A method of temperature rise test is completed at the same time for more 10kV on-pole switch primary connections |
| CN112379260A (en) * | 2020-12-07 | 2021-02-19 | 江苏省电力试验研究院有限公司 | Rapid temperature rise test method and platform for switch equipment |
| CN113030718A (en) * | 2021-03-25 | 2021-06-25 | 苏州电器科学研究院股份有限公司 | High-voltage switch temperature rise test method and system |
| CN113671284A (en) * | 2021-07-23 | 2021-11-19 | 天津天传电控设备检测有限公司 | Box-type substation loss test system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105093099A (en) * | 2014-05-09 | 2015-11-25 | 现代自动车株式会社 | Apparatus and method for detecting faults of battery heating system and relays |
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| CN105044492A (en) * | 2015-06-24 | 2015-11-11 | 温州大学 | Low-voltage electrical complete switch equipment temperature rise test system |
| CN106093772A (en) * | 2016-08-22 | 2016-11-09 | 中华人民共和国东莞出入境检验检疫局 | A kind of electrical switch temperature rise detecting system and method |
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| CN107505487A (en) * | 2017-08-28 | 2017-12-22 | 浙江方圆电气设备检测有限公司 | A kind of method, system and the low voltage complete set of temperature rise experiment |
| CN109669062A (en) * | 2017-10-17 | 2019-04-23 | 许继集团有限公司 | A kind of automatic detection elastic test macro of bolt |
| CN110261692A (en) * | 2019-04-11 | 2019-09-20 | 浙江三辰电器股份有限公司 | Bus main line thermal cycle test device and its test method |
| CN110346713A (en) * | 2019-07-30 | 2019-10-18 | 国网浙江省电力公司宁波供电公司 | A method of temperature rise test is completed at the same time for more 10kV on-pole switch primary connections |
| CN112379260A (en) * | 2020-12-07 | 2021-02-19 | 江苏省电力试验研究院有限公司 | Rapid temperature rise test method and platform for switch equipment |
| CN113030718A (en) * | 2021-03-25 | 2021-06-25 | 苏州电器科学研究院股份有限公司 | High-voltage switch temperature rise test method and system |
| CN113671284A (en) * | 2021-07-23 | 2021-11-19 | 天津天传电控设备检测有限公司 | Box-type substation loss test system and method |
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