CN203759235U - High-voltage electroscope starting voltage test apparatus - Google Patents
High-voltage electroscope starting voltage test apparatus Download PDFInfo
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- CN203759235U CN203759235U CN201420129788.1U CN201420129788U CN203759235U CN 203759235 U CN203759235 U CN 203759235U CN 201420129788 U CN201420129788 U CN 201420129788U CN 203759235 U CN203759235 U CN 203759235U
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- 238000012360 testing method Methods 0.000 title claims abstract description 82
- 230000001105 regulatory effect Effects 0.000 claims abstract description 20
- 238000005259 measurement Methods 0.000 claims description 22
- 238000009413 insulation Methods 0.000 claims description 7
- 238000004070 electrodeposition Methods 0.000 claims description 2
- 230000003993 interaction Effects 0.000 claims description 2
- 238000010998 test method Methods 0.000 abstract description 5
- 239000003990 capacitor Substances 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 206010014357 Electric shock Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
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Abstract
A high-voltage electroscope starting voltage test apparatus belongs to the technical field of AC electroscope test, and especially relates to a capacitive type electroscope starting voltage test apparatus and a test method. The utility model provides a high-voltage electroscope starting voltage test apparatus with the advantages of high safety and accurate test, and a test method. The high-voltage electroscope starting voltage test apparatus of the utility model comprises a voltage control module, a switching power supply, an operating panel, a sine AC voltage regulating module, a 40%UN test electrode, a 15%UN test electrode, two ring electrodes, two high-voltage measuring capacitor voltage dividers, high-voltage measuring capacitor voltage divider voltage signal lines, an insulating casing, and a step-up transformer. The high-voltage electroscope starting voltage test apparatus is structurally characterized in that the switching power supply supplies power to the voltage control module, and the voltage control module controls an output voltage of the sine AC voltage regulating module.
Description
Technical field
The utility model belongs to AC current detector experimental technique field, relates in particular to a kind of condensing type electroscope trigger voltage test unit.
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 tool of support personnel and device security.State Grid Corporation of China's < < electric power safety working regulation > > regulation in 2009, high voltage electroscope before use should be first tested having on electric equipment, confirms that electroscope is good.(for example single supply) place that some scenes are not satisfied the requirements, personnel's device security cannot ensure.
And now the high voltage electroscope trigger voltage test unit on market exists certain defect, several square meters of bulky floor area, equipment are heavy, poor stability, complicated operation and need the shortcomings such as professional testing crew operation.
Summary of the invention
The utility model is exactly for the problems referred to above, provide a kind of safe, test high voltage electroscope trigger voltage test unit and test method accurately.
For achieving the above object, the utility model adopts following technical scheme, the utility model high voltage electroscope trigger voltage test unit, comprises voltage control module, Switching Power Supply, guidance panel, simple alternating current voltage regulating module (can adopt the FZXB2000 of Shanghai Fu Shen Electronic Science and Technology Co., Ltd.), 40%U
ntest electrode, 15%U
ntest 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 voltage control module power supply, voltage control module is controlled 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, and 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 passes respectively the center of a ring electrode, ring electrode ground connection, and high-tension measurement capacitive divider feeds back to voltage control module by measuring-signal, and guidance panel provides human-computer interaction interface to 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, on insulation crust described in the utility model, be provided with front panel, on front panel, be provided with power switch, key zone, the emergency stop switch of test hole, display screen, described Switching Power Supply, the position of test hole is corresponding to described 40%U
ntest electrode, 15%U
ntest electrode position arranges, and display screen, power switch, key zone, emergency stop switch are arranged on described guidance panel, and the button 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 described in the utility model is 37.5% of high-tension coil total number of turns.
As another kind of preferred version, voltage control module described in the utility model 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 analog to digital converter output port, 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.
The utility model high voltage electroscope trigger voltage test method, comprises the following steps.
Operating personnel switch on power by guidance panel and set after tested electroscope rated voltage, starting characteristics test device, voltage control module goes out needed trial voltage according to command calculations, the output voltage of controlling simple alternating current voltage regulating module starts to boost, step-up transformer changes the low-voltage of the output of simple alternating current voltage regulating module into high voltage supplies with test electrode and high-tension measurement capacitive divider, 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; By magnitude of voltage, the display screen by guidance panel shows voltage control module, and judges whether to reach trial voltage, does not continue to boost, otherwise stop boosting if reach trial voltage; If surpassed, automatically adjust, until reach trial voltage, enter trystate, by the display screen of guidance panel, point out and can start test; After off-test, operating personnel send step-down instruction by guidance panel, the output voltage that voltage control module is controlled 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 to 15%U through test hole
ntest electrode and 40%U
ntest electrode; If meet contact 15%U
nduring test electrode, without there being electricity indication, contact 40%U
nacousto-optic indication during test electrode, electroscope trigger voltage is qualified, and any one is satisfied, and electroscope trigger voltage is defective, and electroscope is scrapped.
The utility model beneficial effect.
The utility model hi-lo circuit 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, is revised the accuracy of warranty test voltage and the accuracy of test findings output voltage.
The utlity model has the advantage that cost is lower, safe, floor area is little; Only need 220V power frequency supply can carry out the test of electroscope trigger voltage.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described further.The utility model protection domain is not only confined to the statement of following content.
Fig. 1 is one-piece construction schematic diagram of the present utility model.
Fig. 2 is step-up transformer wiring diagram of the present utility model.
Fig. 3 is front panel schematic diagram of the present utility model.
Fig. 4 is the utility model voltage control module schematic diagram.
Embodiment
As shown in the figure, the utility model high voltage electroscope trigger voltage test unit principle of work is: the electroscope rated voltage of needs test is inputted 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, the voltage of the low pressure power frequency sine wave that Sinusoidal wave pressure regulating module is set according to the signal output receiving is to step-up transformer, 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, high-tension measurement capacitive divider feeds back to voltage control module by the real-time voltage value recording, voltage control module according to real-time voltage value adjustment export to the voltage signal (or current signal) of simple alternating current voltage regulating module and real-time voltage value be presented on guidance panel.
The utility model is a kind of high-voltage AC electroscope trigger voltage test unit, can test first 15%U of trigger voltage simultaneously
nand second point 40%U (6)
n(5), judge that whether high voltage electroscope trigger voltage is qualified.The utility model is inner to be connected as shown in Figure 1, operating personnel switch on power by guidance panel 3 and set after tested electroscope rated voltage, starting characteristics test device, voltage control module 1 goes out needed trial voltage according to command calculations, automatically the output voltage of controlling simple alternating current voltage regulating module 4 starts to boost, step-up transformer 11 changes the low-voltage of the output of simple alternating current voltage regulating module 4 into high voltage supplies with test electrode 5, 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.By real-time voltage value, the display screen 13 by guidance panel 3 shows real-time voltage value and judges whether to reach trial voltage voltage control module 1, if not reaching trial voltage continues to boost, otherwise stop boosting, if surpassed, automatically adjust, until reach trial voltage, enter trystate, by the display screen 13 of guidance panel 3, point out and can start test.After off-test, operating personnel send step-down instruction by guidance panel, the output voltage that voltage control module 1 is controlled 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, by the display screen 13 prompting off-tests of guidance panel 3.
Step-up transformer wiring of the present utility model as shown in Figure 2.The low-pressure side head end a of step-up transformer 11 and low-pressure side end x connect 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 be slightly less than 15% and test electrode (40%U of rated voltage
n) 5 reach 40% of rated voltage.
Concrete test method of the present utility model, as Fig. 3, after trial voltage reaches, is passed successively contact test electrode (15%U of test hole 12 by tested electroscope
n) 6 and test electrode (40%U
n) 5, contacting at 6 o'clock should answer acousto-optic indication at 5 o'clock without having electricity indication, contact, if two to meet electroscope trigger voltage qualified, any one is satisfied, and electroscope trigger voltage is defective, electroscope is scrapped.
Voltage control module schematic diagram of the present utility model is as Fig. 4, the input instruction of CPU (single-chip microcomputer) read operation panel 3, through calculating, send digital signal to D/A digital to analog converter, D/A digital to analog converter is converted into analog voltage by the signal of reception and exports to simple alternating current pressure regulator 4, after step-up transformer 11, become high voltage, high-voltage capacitive divider 8 is exported to A/D analog to digital converter by the voltage signal recording and is sent to CPU, CPU adjusts the digital signal that sends to D/A digital to analog converter, realizes closed-loop control; The instantaneous value of voltage is presented on display screen 13.
The utility model only need be inputted electroscope electric pressure automatic lifting and press, and operates very easy.37.5% tap by step-up transformer high-tension coil total number of turns reaches once to boost can test electroscope trigger voltage, and test efficiency is high.The high 600mm*1500mm*600mm volume that is respectively of the utility model length and width is little, and floor area is little, low to experimental enviroment and Test Condition Requirements, only needs 220V power frequency supply and less space can carry out the test of electroscope trigger voltage.Because high pressure is totally-enclosed, do not contact the possibility of high-pressure section, 1 operating personnel of safe needs, automaticity is high, easy and simple to handle need not professional training can operation.It is small and exquisite that the utility model also has volume, lighter feature, and Whole Equipment weight is less than 20 kilograms, is convenient to mobile.The < < DL740-2000 condensing type electroscope > > standard that the utility model Pass Test electrode is promulgated according to State Economic and Trade Commission is made, the national standard that meets electroscope test, guarantee operating personnel's life safety.Simultaneously production cost of the present utility model is low, and its simple version simplification such as () a set of electrode, a set of voltage dividers cost 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 utility model, only for being described, the utility model is not limited to the described technical scheme of the utility model embodiment, those of ordinary skill in the art is to be understood that, still can modify or be equal to replacement the utility model, to reach identical technique effect; As long as meet, use needs, all within protection domain of the present utility model.
Claims (4)
1. high voltage electroscope trigger voltage test unit, comprises voltage control module, Switching Power Supply, guidance panel, simple alternating current voltage regulating module, 40%U
ntest electrode, 15%U
ntest 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 voltage control module power supply, voltage control module is controlled 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, and 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 passes respectively the center of a ring electrode, ring electrode ground connection, and high-tension measurement capacitive divider feeds back to voltage control module by measuring-signal, and guidance panel provides human-computer interaction interface to 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 being provided with front panel on described insulation crust, the power switch, key zone, the emergency stop switch that on front panel, are provided with test hole, display screen, described Switching Power Supply, the position of test hole is corresponding to described 40%U
ntest electrode, 15%U
ntest electrode position arranges, and display screen, power switch, key zone, emergency stop switch are arranged on described guidance panel, and the button 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 analog to digital converter output port, 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420129788.1U CN203759235U (en) | 2014-03-21 | 2014-03-21 | High-voltage electroscope starting voltage test apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420129788.1U CN203759235U (en) | 2014-03-21 | 2014-03-21 | High-voltage electroscope starting voltage test apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN203759235U true CN203759235U (en) | 2014-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420129788.1U Expired - Lifetime CN203759235U (en) | 2014-03-21 | 2014-03-21 | High-voltage electroscope starting voltage test apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104931905A (en) * | 2014-03-21 | 2015-09-23 | 国家电网公司 | High-voltage electroscope starting voltage test apparatus and test method |
-
2014
- 2014-03-21 CN CN201420129788.1U patent/CN203759235U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104931905A (en) * | 2014-03-21 | 2015-09-23 | 国家电网公司 | High-voltage electroscope starting voltage test apparatus and test method |
| CN104931905B (en) * | 2014-03-21 | 2017-12-19 | 国家电网公司 | High voltage electroscope starts voltage test device and test method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140806 Effective date of abandoning: 20171219 |
|
| AV01 | Patent right actively abandoned |