CN104931905A - High-voltage electroscope starting voltage test apparatus and test method - Google Patents
High-voltage electroscope starting voltage test apparatus and test method Download PDFInfo
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- CN104931905A CN104931905A CN201410107272.1A CN201410107272A CN104931905A CN 104931905 A CN104931905 A CN 104931905A CN 201410107272 A CN201410107272 A CN 201410107272A CN 104931905 A CN104931905 A CN 104931905A
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- 238000012360 testing method Methods 0.000 title claims abstract description 91
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- 238000005259 measurement Methods 0.000 claims description 25
- 238000009413 insulation Methods 0.000 claims description 7
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Abstract
A high-voltage electroscope starting voltage test apparatus and a test method belong to the alternating current electroscope test technology field and especially relates to a capacitive-type electroscope starting voltage test apparatus and a test method. The invention provides the high-voltage electroscope starting voltage test apparatus with high safety and accurate testing and the test method. The high-voltage electroscope starting voltage test apparatus comprises a voltage control module, a switch power supply, an operation panel, a sine alternating current voltage regulating module, a 40% UN test electrode, a 15% UN test electrode, two ring electrodes, two high voltage measuring capacitance voltage dividers, a high voltage measuring capacitance voltage divider voltage signal line, an insulating shell and a boosting transformer. The structure is characterized in that the switch power supply provides power for the voltage control module and the voltage control module controls an output voltage of the sine alternating current voltage regulating module.
Description
Technical field
The invention belongs to AC current detector experimental technique field, particularly relate to a kind of condensing type electroscope trigger voltage test unit and test method.
Background technology
High voltage electroscope is the electroscopic device of electrical verification link in power failure, electrical verification, hanging earthing conductor technical safety measures.Its performance is intact is the main security instrument of support personnel and device security.State Grid Corporation of China 2009 " electric power safety working regulation " specifies, high voltage electroscope should first be tested having on electric equipment before use, confirms that electroscope is good.To (such as single supply) place that some scenes do not satisfy the requirements, personnel equipment cannot ensure safely.
And there is certain defect in existing high voltage electroscope trigger voltage test unit commercially, the shortcomings such as a few square meter of bulky floor area, equipment are heavy, the operation of poor stability, complicated operation and needs specialty testing crew.
Summary of the invention
The present invention is exactly for the problems referred to above, provide a kind of security high, test high voltage electroscope trigger voltage test unit and test method accurately.
For achieving the above object, the present invention adopts following technical scheme, high voltage electroscope trigger voltage test unit of the present invention, comprise voltage control module, Switching Power Supply, guidance panel, simple alternating current voltage regulating module (FZXB2000 of Shanghai Fu Shen Electronic Science and Technology Co., Ltd. can be adopted), 40%UN test electrode, 15%UN test electrode, two ring electrodes, two high-tension measurement capacitive dividers, high-tension measurement capacitive divider voltage signal line, insulation crust, step-up transformer, its structural feature Switching Power Supply is that voltage control module is powered, voltage control module controls the output voltage of simple alternating current voltage regulating module, the output of simple alternating current voltage regulating module connects the input of step-up transformer, high-pressure side one end of step-up transformer connects 40%U
ntest electrode and a high-tension measurement capacitive divider, the high-pressure side tap of step-up transformer connects 15%U
ntest electrode and another high-tension measurement capacitive divider, 40%U
ntest electrode, 15%U
ntest electrode is each passed through the center of a ring electrode, ring electrode ground connection, and measuring-signal is fed back to voltage control module by high-tension measurement capacitive divider, and guidance panel provides human-computer interaction interface control voltage control module, described step-up transformer, high-tension measurement capacitive divider, 40%U
ntest electrode, 15%U
ntest electrode is installed in insulation crust.
As a kind of preferred version, insulation crust of the present invention is provided with front panel, front panel is provided with test hole, display screen, the power switch of described Switching Power Supply, key zone, emergency stop switch, the position of test hole is corresponding to described 40%U
ntest electrode, 15%U
ntest electrode position is arranged, and display screen, power switch, key zone, emergency stop switch are arranged on described guidance panel, and the Key pad port of key zone, display screen port, emergency stop switch are all connected with voltage control module port.
As another kind of preferred version, the high-pressure side tap position number of turn of step-up transformer of the present invention is 37.5% of high-tension coil total number of turns.
As another kind of preferred version, voltage control module of the present invention comprises CPU, D/A digital to analog converter and A/D analog to digital converter, CPU output port is connected with D/A digital to analog converter input port, display screen input port respectively, CPU input port is connected with A/D AfD converter output mouth, guidance panel output port respectively, A/D analog to digital converter input port is connected with high-tension measurement capacitive divider output port, and D/A digital to analog converter output port is connected with simple alternating current pressure regulator input port.
High voltage electroscope trigger voltage test method of the present invention, comprises the following steps.
After operating personnel are switched on power by guidance panel and set tested electroscope rated voltage, starting characteristics test device, voltage control module goes out required trial voltage according to command calculations, the output voltage controlling simple alternating current voltage regulating module starts boosting, the low-voltage of the output of simple alternating current voltage regulating module is changed into high voltage supply test electrode and high-tension measurement capacitive divider by step-up transformer, and the voltage signal that high-tension measurement capacitive divider records feeds back to voltage control module by high-tension measurement capacitive divider voltage signal line; The display screen of magnitude of voltage by guidance panel shows by voltage control module, and judges whether to reach trial voltage, if do not reach trial voltage to continue boosting, otherwise stops boosting; If exceeded, automatically adjust, until reach trial voltage to enter trystate, test can be started by the display screen prompting of guidance panel; After off-test, operating personnel send step-down instruction by guidance panel, the output voltage that voltage control module controls simple alternating current voltage regulating module automatically according to instruction starts step-down, until the output voltage of simple alternating current voltage regulating module reduces to zero, by the display screen prompting off-test of guidance panel.
After trial voltage reaches, tested electroscope is successively contacted 15%U through test hole
ntest electrode and 40%U
ntest electrode; If meet contact 15%U
nwithout there being electricity instruction during test electrode, contact 40%U
nacousto-optic instruction during test electrode, electroscope trigger voltage is qualified, and any one is satisfied, and then electroscope trigger voltage is defective, and electroscope is scrapped.
Beneficial effect of the present invention.
Hi-lo circuit of the present invention is separated, and high-pressure section is enclosed in insulation crust, and during the test of electroscope trigger voltage, operating personnel do not have high pressure Danger Electric shock risk; Voltage control module is measured output voltage, correction, the accuracy of warranty test voltage and the accuracy of test findings.
The present invention has the advantage that cost is lower, security is high, floor area is little; Only need 220V power frequency supply namely can carry out the test of electroscope trigger voltage.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.Scope is not only confined to the statement of following content.
Fig. 1 is one-piece construction schematic diagram of the present invention.
Fig. 2 is step-up transformer wiring diagram of the present invention.
Fig. 3 is front panel schematic diagram of the present invention.
Fig. 4 is voltage control module schematic diagram of the present invention.
Embodiment
As shown in the figure, high voltage electroscope trigger voltage test unit principle of work of the present invention is: inputted needing the electroscope rated voltage of test by guidance panel, the parameter of voltage control module read operation panel input is converted into buck voltage signal (or current signal) and outputs to simple alternating current voltage regulating module, Sinusoidal wave pressure regulating module exports the voltage of the low pressure power frequency sine wave of setting to step-up transformer according to the signal received, step-up transformer changes low-voltage into High voltage output on test electrode and high-tension measurement capacitive divider according to no-load voltage ratio, the real-time voltage value recorded is fed back to voltage control module by high-tension measurement capacitive divider, voltage control module is exported to the voltage signal (or current signal) of simple alternating current voltage regulating module according to the adjustment of real-time voltage value and real-time voltage value is presented on guidance panel.
The present invention is a kind of high-voltage AC electroscope trigger voltage test unit, can test trigger voltage first 15%U simultaneously
nand second point 40%U (6)
n(5), judge that whether high voltage electroscope trigger voltage is qualified.The present invention inside connects as shown in Figure 1, after operating personnel are switched on power by guidance panel 3 and set tested electroscope rated voltage, starting characteristics test device, voltage control module 1 goes out required trial voltage according to command calculations, the output voltage of automatic control simple alternating current voltage regulating module 4 starts boosting, the low-voltage of the output of simple alternating current voltage regulating module 4 is changed into high voltage supply test electrode 5 by step-up transformer 11, 6 and high-tension measurement capacitive divider 8, the voltage signal that high-tension measurement capacitive divider 8 records feeds back to voltage control module 1 by high-tension measurement capacitive divider voltage signal line 9.Real-time voltage value is shown real-time voltage value by the display screen 13 of guidance panel 3 and judges whether to reach trial voltage by voltage control module 1, if do not reach trial voltage to continue boosting, otherwise stop boosting, if exceeded, automatically adjust, until reach trial voltage to enter trystate, test can be started by display screen 13 prompting of guidance panel 3.After off-test, operating personnel send step-down instruction by guidance panel, the output voltage that voltage control module 1 controls simple alternating current voltage regulating module 4 automatically according to instruction starts step-down, until the output voltage of simple alternating current voltage regulating module 4 reduces to zero, point out off-test by the display screen 13 of guidance panel 3.
Step-up transformer wiring of the present invention as shown in Figure 2.The low-pressure side head end a of step-up transformer 11 and low-pressure side end x connects the output terminal of simple alternating current voltage regulating module 4.High-pressure side head end A
1meet test electrode (40%U
n) 5, high-pressure side centre tap A
2meet test electrode (15%U
n) 6; High-pressure side end X
hground connection.High-pressure side centre tap A
2tap position be that 37.5% of high-tension coil total number of turns rounds with warranty test electrode (15%U
n) 6 15% and the test electrode (40%U being slightly less than rated voltage
n) 5 reach 40% of rated voltage.
Tested electroscope, as Fig. 3, after trial voltage reaches, is passed test hole 12 successively contact test electrode (15%U by concrete test method of the present invention
n) 6 and test electrode (40%U
n) 5, should, without there being electricity instruction, when contacting 5, answer acousto-optic indicate when contacting 6, if two to meet electroscope trigger voltage qualified, any one is satisfied, and then electroscope trigger voltage is defective, and electroscope is scrapped.
Voltage control module schematic diagram of the present invention is as Fig. 4, the input instruction of CPU (single-chip microcomputer) read operation panel 3, digital signal is sent to D/A digital to analog converter through calculating, the signal of reception is converted into analog voltage and exports to simple alternating current pressure regulator 4 by D/A digital to analog converter, high voltage is become after step-up transformer 11, the voltage signal recorded is exported to A/D analog to digital converter and is sent to CPU by high-voltage capacitive divider 8, CPU adjustment sends to the digital signal of D/A digital to analog converter, realizes closed-loop control; The instantaneous value of voltage is presented on display screen 13.
The present invention only need input electroscope electric pressure automatic lifting pressure, operates very easy.Reach once to boost by 37.5% tap of step-up transformer high-tension coil total number of turns and namely can test electroscope trigger voltage, test efficiency is high.It is little that length, width and height of the present invention are respectively 600mm*1500mm*600mm volume, floor area is little, to experimental enviroment and Test Condition Requirements low, only need 220V power frequency supply and less space namely can carry out the test of electroscope trigger voltage.Do not contact because high pressure is totally-enclosed high-pressure section may, security is high only needs 1 operating personnel, and automaticity is high, easy and simple to handlely need not professional training can operate.The present invention also has compact, lighter feature, and Whole Equipment weight is less than 20 kilograms, is convenient to mobile." DL740-2000 condensing type electroscope " standard that Pass Test electrode of the present invention is promulgated according to State Economic and Trade Commission makes, and meets the national standard of electroscope test, ensures the life safety of operating personnel.Simultaneously production cost of the present invention is low, and its simple version cost such as (a set of electrode, a set of voltage divider simplification) is lower, is particularly suitable for the generally outfit of distribution maintenance teams and groups of power industry basic unit.
Be understandable that, above about specific descriptions of the present invention, the technical scheme described by the embodiment of the present invention is only not limited to for illustration of the present invention, those of ordinary skill in the art is to be understood that, still can modify to the present invention or equivalent replacement, to reach identical technique effect; Needs are used, all within protection scope of the present invention as long as meet.
Claims (5)
1. high voltage electroscope trigger voltage test unit, comprise voltage control module, Switching Power Supply, guidance panel, simple alternating current voltage regulating module, 40%UN test electrode, 15%UN test electrode, two ring electrodes, two high-tension measurement capacitive dividers, high-tension measurement capacitive divider voltage signal line, insulation crust, step-up transformer, it is characterized in that Switching Power Supply is that voltage control module is powered, voltage control module controls the output voltage of simple alternating current voltage regulating module, the output of simple alternating current voltage regulating module connects the input of step-up transformer, high-pressure side one end of step-up transformer connects 40%U
ntest electrode and a high-tension measurement capacitive divider, the high-pressure side tap of step-up transformer connects 15%U
ntest electrode and another high-tension measurement capacitive divider, 40%U
ntest electrode, 15%U
ntest electrode is each passed through the center of a ring electrode, ring electrode ground connection, and measuring-signal is fed back to voltage control module by high-tension measurement capacitive divider, and guidance panel provides human-computer interaction interface control voltage control module, described step-up transformer, high-tension measurement capacitive divider, 40%U
ntest electrode, 15%U
ntest electrode is installed in insulation crust.
2. high voltage electroscope trigger voltage test unit according to claim 1, it is characterized in that described insulation crust is provided with front panel, front panel is provided with test hole, display screen, the power switch of described Switching Power Supply, key zone, emergency stop switch, the position of test hole is corresponding to described 40%U
ntest electrode, 15%U
ntest electrode position is arranged, and display screen, power switch, key zone, emergency stop switch are arranged on described guidance panel, and the Key pad port of key zone, display screen port, emergency stop switch are all connected with voltage control module port.
3. high voltage electroscope trigger voltage test unit according to claim 2, is characterized in that the high-pressure side tap position number of turn of described step-up transformer is 37.5% of high-tension coil total number of turns.
4. high voltage electroscope trigger voltage test unit according to claim 3, it is characterized in that described voltage control module comprises CPU, D/A digital to analog converter and A/D analog to digital converter, CPU output port is connected with D/A digital to analog converter input port, display screen input port respectively, CPU input port is connected with A/D AfD converter output mouth, guidance panel output port respectively, A/D analog to digital converter input port is connected with high-tension measurement capacitive divider output port, and D/A digital to analog converter output port is connected with simple alternating current pressure regulator input port.
5. high voltage electroscope trigger voltage test method, is characterized in that comprising the following steps:
After operating personnel are switched on power by guidance panel and set tested electroscope rated voltage, starting characteristics test device, voltage control module goes out required trial voltage according to command calculations, the output voltage controlling simple alternating current voltage regulating module starts boosting, the low-voltage of the output of simple alternating current voltage regulating module is changed into high voltage supply test electrode and high-tension measurement capacitive divider by step-up transformer, and the voltage signal that high-tension measurement capacitive divider records feeds back to voltage control module by high-tension measurement capacitive divider voltage signal line; The display screen of magnitude of voltage by guidance panel shows by voltage control module, and judges whether to reach trial voltage, if do not reach trial voltage to continue boosting, otherwise stops boosting; If exceeded, automatically adjust, until reach trial voltage to enter trystate, test can be started by the display screen prompting of guidance panel; After off-test, operating personnel send step-down instruction by guidance panel, the output voltage that voltage control module controls simple alternating current voltage regulating module automatically according to instruction starts step-down, until the output voltage of simple alternating current voltage regulating module reduces to zero, by the display screen prompting off-test of guidance panel;
After trial voltage reaches, tested electroscope is successively contacted 15%U through test hole
ntest electrode and 40%U
ntest electrode; If meet contact 15%U
nwithout there being electricity instruction during test electrode, contact 40%U
nacousto-optic instruction during test electrode, electroscope trigger voltage is qualified, and any one is satisfied, and then electroscope trigger voltage is defective, and electroscope is scrapped.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410107272.1A CN104931905B (en) | 2014-03-21 | 2014-03-21 | High voltage electroscope starts voltage test device and test method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410107272.1A CN104931905B (en) | 2014-03-21 | 2014-03-21 | High voltage electroscope starts voltage test device and test method |
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| CN104931905A true CN104931905A (en) | 2015-09-23 |
| CN104931905B CN104931905B (en) | 2017-12-19 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107607900A (en) * | 2017-10-31 | 2018-01-19 | 国网重庆市电力公司璧山供电分公司 | A kind of electroscope calibration equipment |
| CN108802656A (en) * | 2018-07-20 | 2018-11-13 | 国网湖北省电力有限公司宜昌供电公司 | High voltage electroscope starts detector |
| CN113917382A (en) * | 2021-09-28 | 2022-01-11 | 广东电网有限责任公司 | High-voltage generator and control method |
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| CN86201349U (en) * | 1986-02-27 | 1987-06-10 | 上海供电局 | High-voltage equipotential self-checking acoustooptical electroscope |
| CN2409523Y (en) * | 1999-10-18 | 2000-12-06 | 杨锡福 | Electroscope |
| CN2781384Y (en) * | 2005-04-06 | 2006-05-17 | 上海琦峰验电器有限公司 | Test control platform for start voltage of electroscope |
| JP2013160533A (en) * | 2012-02-01 | 2013-08-19 | East Japan Railway Co | Electroscope and method for detecting electricity |
| CN203759235U (en) * | 2014-03-21 | 2014-08-06 | 国家电网公司 | High-voltage electroscope starting voltage test apparatus |
-
2014
- 2014-03-21 CN CN201410107272.1A patent/CN104931905B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86201349U (en) * | 1986-02-27 | 1987-06-10 | 上海供电局 | High-voltage equipotential self-checking acoustooptical electroscope |
| CN2409523Y (en) * | 1999-10-18 | 2000-12-06 | 杨锡福 | Electroscope |
| CN2781384Y (en) * | 2005-04-06 | 2006-05-17 | 上海琦峰验电器有限公司 | Test control platform for start voltage of electroscope |
| JP2013160533A (en) * | 2012-02-01 | 2013-08-19 | East Japan Railway Co | Electroscope and method for detecting electricity |
| CN203759235U (en) * | 2014-03-21 | 2014-08-06 | 国家电网公司 | High-voltage electroscope starting voltage test apparatus |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107607900A (en) * | 2017-10-31 | 2018-01-19 | 国网重庆市电力公司璧山供电分公司 | A kind of electroscope calibration equipment |
| CN107607900B (en) * | 2017-10-31 | 2024-02-13 | 国网重庆市电力公司璧山供电分公司 | Electroscope verifying attachment |
| CN108802656A (en) * | 2018-07-20 | 2018-11-13 | 国网湖北省电力有限公司宜昌供电公司 | High voltage electroscope starts detector |
| CN108802656B (en) * | 2018-07-20 | 2024-01-16 | 国网湖北省电力有限公司宜昌供电公司 | High-voltage electroscope starting detector |
| CN113917382A (en) * | 2021-09-28 | 2022-01-11 | 广东电网有限责任公司 | High-voltage generator and control method |
| CN113917382B (en) * | 2021-09-28 | 2023-07-14 | 广东电网有限责任公司 | High-voltage generator and control method |
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| CN104931905B (en) | 2017-12-19 |
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