CN204203445U - Measuring equipment rolling inspection device - Google Patents
Measuring equipment rolling inspection device Download PDFInfo
- Publication number
- CN204203445U CN204203445U CN201420688289.6U CN201420688289U CN204203445U CN 204203445 U CN204203445 U CN 204203445U CN 201420688289 U CN201420688289 U CN 201420688289U CN 204203445 U CN204203445 U CN 204203445U
- Authority
- CN
- China
- Prior art keywords
- binding post
- module
- measuring equipment
- inspection device
- voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Measurement Of Resistance Or Impedance (AREA)
Abstract
The utility model discloses a kind of measuring equipment rolling inspection device, comprise housing and panel, described panel is provided with AC and DC voltage measurement change-over switch, Power Entry Module, for the full-bridge rectification block of DC voltage measurement, standard scale module, reported to the police by checklist module, pressure-resistant tester module, leakage current and auto-breaking tentative module and universal electric meter alternating voltage, DC voltage and resistance test module.Instrument, instrument rolling inspection device volume be small and exquisite, can easily to the functional inspection that power frequency withstand test instrument, megohmmeter, universal electric meter carry out, to judge that can measuring equipment be used for the measurement activity specified, guarantee accuracy and the reliability of instrument, Instrument use.
Description
Technical field
The utility model relates to a kind of measuring equipment and runs pick-up unit.
Background technology
According to the requirement of Tai Er certification to Communication Power Equipment measuring equipment: to the measuring equipment for factory inspection except before carrying out use or except periodic calibration, also regularly should carry out rolling inspection, to judge that can measuring equipment be used for the measurement activity specified.When finding that the result of rolling inspection can not meet the demands, should be able to trace back to and examined product and taked necessary measure.Rolling inspection result and the record of taking measures should be preserved.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of measuring equipment and runs pick-up unit.
The purpose of this utility model is realized by such technical scheme, measuring equipment rolling inspection device, comprise housing and panel, described panel is provided with AC and DC voltage measurement change-over switch, for the full-bridge rectification block of DC voltage measurement, Power Entry Module, standard scale module, reported to the police by checklist module, pressure-resistant tester module, leakage current and auto-breaking tentative module and universal electric meter alternating voltage, DC voltage and resistance test module.
Further, described pressure-resistant tester module comprises the first binding post, the second binding post and the 3rd binding post, and described first binding post is connected the second precision resistance with between the second binding post, is connected the 3rd precision resistance between described second binding post with the 3rd binding post.
Further, described leakage current is reported to the police and auto-breaking tentative module comprises the 4th binding post and the 5th binding post, and described 4th binding post is connected the 4th precision resistance with between the 5th binding post.
Further, described standard scale module comprises the 8th binding post and the 9th binding post, describedly comprised the tenth binding post and the 11 binding post by checklist binding post, described AC and DC voltage measurement change-over switch comprises moving contact, first static contact and the second static contact, described 8th binding post is connected with the first output terminal of bridge rectifier circuit with after the tenth binding post parallel connection, described 9th binding post is connected with the second output terminal of bridge rectifier circuit with after the 11 binding post parallel connection, described moving contact is connected with power supply lead-in clamp, described first static contact is connected with the first input end of bridge rectifier circuit, described second static contact is connected with the second input end of bridge rectifier circuit.
Further, described universal electric meter resistance test module comprises the 12 binding post, the 13 binding post, the 14 binding post, the 15 binding post and the 16 binding post, described 12 binding post is connected the 5th precision resistance with between the 13 binding post, described 13 binding post is connected the 6th precision resistance with between the 14 binding post, described 14 binding post is connected the 7th precision resistance with between the 15 binding post, and described 15 binding post is connected the 8th precision resistance with between the 16 binding post.
Further, be connected by insulated terminal between each binding post with precision resistance.
Owing to have employed technique scheme, the utility model has following advantage:
Instrument, instrument rolling inspection device volume be small and exquisite, can easily to the functional inspection that power frequency withstand test instrument, megohmmeter, universal electric meter carry out, to judge that can measuring equipment be used for the measurement activity specified, guarantee accuracy and the reliability of instrument, Instrument use.
Accompanying drawing explanation
In order to make the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, the utility model is described in further detail, wherein:
Fig. 1 is instrument, instrument rolling inspection device panel and silk-screen figure;
Fig. 2 is pressure-resistant tester output voltage calibrating principle figure;
Fig. 3 is that pressure-resistant tester leakage current is reported to the police and auto-breaking schematic diagram;
Fig. 4 is universal electric meter combined-voltage Measurement and calibration schematic diagram;
Fig. 5 is universal electric meter resistance measurement calibrating principle figure.
Embodiment
Below with reference to accompanying drawing, preferred embodiment of the present utility model is described in detail; Should be appreciated that preferred embodiment only in order to the utility model is described, instead of in order to limit protection domain of the present utility model.
As shown in Figure 1, measuring equipment rolling inspection device, comprise housing and panel, described panel is provided with AC and DC voltage measurement change-over switch, for the full-bridge rectification block of DC voltage measurement, Power Entry Module, standard scale module, reported to the police by checklist module, pressure-resistant tester module, leakage current and auto-breaking tentative module and universal electric meter alternating voltage, DC voltage and resistance test module.
As shown in Figure 2, described pressure-resistant tester module is used for pressure-resistant tester rolling inspection, this pressure-resistant tester module comprises the first binding post 1, second binding post 2 and the 3rd binding post 3, described first binding post be connected the second precision resistance R2 between the second binding post, be connected the 3rd precision resistance R3 between described second binding post with the 3rd binding post.
The principle of withstand voltage test: the voltage divider principle utilizing resistance in series
U-pressure-resistant tester output voltage,
U1-voltage table test voltage,
According to resistance in series voltage divider principle, when pressure-resistant tester output voltage is 1000V, R
3on partial pressure value be 100V.When being namely measured as 100V with voltage table, the accuracy of pressure-resistant tester output voltage is up to standard.
The calibration steps of withstand voltage test
The ground connection of Hi-pot Tester, the line of return are connect the 3rd binding post 3, has padded insulating mat and insulating glove, be connected on respectively on the second binding post 2 and the 3rd binding post 3 by multimeter two test pens, multimeter gear is adjusted on AC200V gear.
After start preheating 5min, trial voltage is adjusted to and exchanges 1000V (pressure-resistant tester panel digital voltage table display 1000V), the Hi-pot test rod of pressure-resistant tester contacts with the first binding post 1, and within reading multimeter reading should be 100V ± 2%, pressure-resistant tester output voltage is qualified.
As shown in Figure 3, described leakage current is reported to the police and auto-breaking tentative module is used for leakage current warning and auto-breaking testing inspection, this module comprises the 4th binding post 4 and the 5th binding post 5, and described 4th binding post is connected the 4th precision resistance R4 with between the 5th binding post.
Leakage current is reported to the police and auto-breaking principle
The Hi-pot Tester leakage current upper limit is set to 20mA, apply 500V trial voltage on the 4th precision resistance (20M Ω), the electric current now flowing through R4 according to Ohm law is 25mA, namely exceed leakage current by the electric current of Hi-pot Tester and arrange upper limit 20mA, Hi-pot Tester is reported to the police immediately and auto-breaking is normal.
The method can judge that the leakage current of pressure-resistant tester is reported to the police and whether automatic circuit break function is normal effectively.
As shown in Figure 4, described standard scale module comprises the 8th binding post 8 and the 9th binding post 9, describedly comprised the tenth binding post the 10 and the 11 binding post 11 by checklist module, described selector switch K comprises moving contact, first static contact and the second static contact, described 8th binding post is connected with the first output terminal of bridge rectifier circuit with after the tenth binding post parallel connection, described 9th binding post is connected with the second output terminal of bridge rectifier circuit with after the 11 binding post parallel connection, described moving contact is connected with power supply lead-in clamp, described first static contact is connected with the first input end of bridge rectifier circuit, described second static contact is connected with the second input end of bridge rectifier circuit.
Universal electric meter ac voltage measurement calibrating principle
Two employing Small Scale Adjustable alternating current steady voltage plug, in the output map interlinking 4 of stabilized voltage supply on the 6th binding post 6 and the 7th binding post 7, AC and DC voltage measurement change-over switch K is placed on AC side, two terminations the 8th binding post 8 of standard scale (0.5 stages of digital formula A.C. voltmeter, range are 0 ~ 250V) and the 9th binding post 9, on two terminations the tenth binding post the 10 and the 11 binding post 11 of calibrated meter.Regulate the output voltage (range of regulation 0 ~ 220V) of alternating current steady voltage plug according to the range of universal electric meter, standard of comparison table and calibrated meter reading are calibrated, and within test result error≤± 1%, it is qualified to calibrate.
Universal electric meter DC voltage measurement calibrating principle
Small Scale Adjustable alternating current steady voltage plug is adopted in device, change-over switch K is placed in DC side, alternating voltage to become in DC voltage direct current output cathode map interlinking 4 in the 8th binding post 8, the map interlinking of direct current output negative pole on the 9th binding post 9 (inside is wiring) by full-bridge rectification, the positive pole of standard scale (0.5 stages of digital formula D.C. voltmeter, range are 0 ~ 250V) connects the 8th binding post 8, negative pole connects on the 9th binding post 9, and calibrated meter positive pole connects the second binding post 10, negative pole connects on the 11 binding post 11.Regulate the output voltage (range of regulation 0 ~ 220V) of alternating current steady voltage plug according to the range of universal electric meter, standard of comparison table and calibrated meter reading are calibrated, and within test result error≤± 1%, it is qualified to calibrate.
As shown in Figure 5, described universal electric meter resistance test module comprises the 12 binding post the 12, the 13 binding post the 13, the 14 binding post the 14, the 15 binding post the 15 and the 16 binding post 16, described 12 binding post is connected the 5th precision resistance R5 with between the 13 binding post, described 13 binding post is connected the 6th precision resistance R6 with between the 14 binding post, described 14 binding post is connected the 7th precision resistance R7 with between the 15 binding post, and described 15 binding post is connected the 8th precision resistance R8 with between the 16 binding post.
Universal electric meter resistance measurement calibrating principle
Pointer-type universal electric meter is electrically and behind digimer school zero, during according to resistance measurement gear R × 1 grade, when testing 200 Ω, R × 10 grade, during test 2k Ω, R × 100 grades, when test 20k Ω, R × 100 grades, test 2M Ω, within test result error≤± 1%, it is qualified to calibrate.
Be connected by insulated terminal 18 between each binding post with precision resistance.Insulated terminal 18 is connected after crimping with the line ear of pre insulated with each binding post, guarantees that insulation reaches requirement.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, obviously, those skilled in the art can carry out various change and modification to the utility model and not depart from spirit and scope of the present utility model.Like this, if these amendments of the present utility model and modification belong within the scope of the utility model claim and equivalent technologies thereof, then the utility model is also intended to comprise these change and modification.
Claims (6)
1. measuring equipment rolling inspection device, it is characterized in that: comprise housing and panel, described panel is provided with AC and DC voltage measurement change-over switch, for the full-bridge rectification block of DC voltage measurement, Power Entry Module, standard scale module, reported to the police by checklist module, pressure-resistant tester module, leakage current and auto-breaking tentative module and universal electric meter alternating voltage, DC voltage and resistance test module.
2. measuring equipment rolling inspection device according to claim 1, it is characterized in that: described pressure-resistant tester module comprises the first binding post, the second binding post and the 3rd binding post, described first binding post is connected the second precision resistance with between the second binding post, is connected the 3rd precision resistance between described second binding post with the 3rd binding post.
3. measuring equipment rolling inspection device according to claim 1, it is characterized in that: described leakage current is reported to the police and auto-breaking tentative module comprises the 4th binding post and the 5th binding post, and described 4th binding post is connected the 4th precision resistance with between the 5th binding post.
4. measuring equipment rolling inspection device according to claim 1, it is characterized in that: described standard scale module comprises the 8th binding post and the 9th binding post, describedly comprised the tenth binding post and the 11 binding post by checklist binding post, described AC and DC voltage measurement change-over switch comprises moving contact, first static contact and the second static contact, described 8th binding post is connected with the first output terminal of bridge rectifier circuit with after the tenth binding post parallel connection, described 9th binding post is connected with the second output terminal of bridge rectifier circuit with after the 11 binding post parallel connection, described moving contact is connected with power supply lead-in clamp, described first static contact is connected with the first input end of bridge rectifier circuit, described second static contact is connected with the second input end of bridge rectifier circuit.
5. measuring equipment rolling inspection device according to claim 1, it is characterized in that: described universal electric meter resistance test module comprises the 12 binding post, 13 binding post, 14 binding post, 15 binding post and the 16 binding post, described 12 binding post is connected the 5th precision resistance with between the 13 binding post, described 13 binding post is connected the 6th precision resistance with between the 14 binding post, described 14 binding post is connected the 7th precision resistance with between the 15 binding post, described 15 binding post is connected the 8th precision resistance with between the 16 binding post.
6. the measuring equipment rolling inspection device according to claim 2 ~ 5 any one, be is characterized in that: be connected by insulated terminal between each binding post with precision resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420688289.6U CN204203445U (en) | 2014-11-14 | 2014-11-14 | Measuring equipment rolling inspection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420688289.6U CN204203445U (en) | 2014-11-14 | 2014-11-14 | Measuring equipment rolling inspection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204203445U true CN204203445U (en) | 2015-03-11 |
Family
ID=52661390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420688289.6U Expired - Fee Related CN204203445U (en) | 2014-11-14 | 2014-11-14 | Measuring equipment rolling inspection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204203445U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104991548A (en) * | 2015-05-21 | 2015-10-21 | 西安航空动力股份有限公司 | Detection method of control system in ground measurement and control instrument |
| CN107643502A (en) * | 2017-09-26 | 2018-01-30 | 广西电网有限责任公司电力科学研究院 | A kind of high-voltage electrical apparatus detecting instrument check device |
| CN110987443A (en) * | 2019-11-22 | 2020-04-10 | 中国航发沈阳黎明航空发动机有限责任公司 | Rapid switching measurement device and method for couple inspection of aircraft engine |
-
2014
- 2014-11-14 CN CN201420688289.6U patent/CN204203445U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104991548A (en) * | 2015-05-21 | 2015-10-21 | 西安航空动力股份有限公司 | Detection method of control system in ground measurement and control instrument |
| CN104991548B (en) * | 2015-05-21 | 2017-09-26 | 西安航空动力股份有限公司 | The detection method of control system in a kind of ground observing and controlling instrument |
| CN107643502A (en) * | 2017-09-26 | 2018-01-30 | 广西电网有限责任公司电力科学研究院 | A kind of high-voltage electrical apparatus detecting instrument check device |
| CN110987443A (en) * | 2019-11-22 | 2020-04-10 | 中国航发沈阳黎明航空发动机有限责任公司 | Rapid switching measurement device and method for couple inspection of aircraft engine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204203445U (en) | Measuring equipment rolling inspection device | |
| CN104297710A (en) | High-current sensor calibration method based on curve fitting method | |
| CN105044432B (en) | Current transformer leakage current measuring method | |
| CN203849330U (en) | DC (direct current) resistance measuring instrument for AC (alternating current) loop | |
| CN204925189U (en) | 10kV DC voltage proportion standard device | |
| CN106546940A (en) | A kind of field testing procedure of optical voltage transformer | |
| CN105510855B (en) | A kind of low-voltage circuit breaker acting characteristic testing stand calibration method | |
| CN208172234U (en) | A kind of no-load voltage ratio of current transformer, Check up polarity experimental rig | |
| CN111257645A (en) | Device and method for testing direct current resistance of auxiliary contact of high-voltage and low-voltage circuit breakers | |
| CN106443549A (en) | Analog alternating current resistance device for calibrating battery internal resistance tester | |
| CN204228774U (en) | A kind of 1000kV DC partial voltage for DC voltage addition test compares standard set-up | |
| CN105866667A (en) | Loop resistance test method for two-terminal-grounding circuit breaker | |
| CN203982644U (en) | Multifunction teaching circuit board | |
| CN202522689U (en) | Magnetic induction intensity measuring device based on Hall effect | |
| CN206362860U (en) | A kind of test device of GIS or GIL equipment loop resistance | |
| CN102466788B (en) | Universal meter calibration source | |
| CN106970325B (en) | Generator handbag insulation reverse wiring inspection device and method for high potential measurement | |
| CN104267364A (en) | Method for calibrating large-current sensor | |
| CN204439820U (en) | Once-through type lightning arrester on-Line Monitor Device detector | |
| CN211402545U (en) | Experimental device for measuring resistance by using oscilloscope | |
| CN113820536A (en) | Zinc oxide arrester live-line detection method based on wireless synchronous current measurement technology | |
| CN110031774B (en) | Online measurement method and device for internal resistance of battery pack | |
| CN203422878U (en) | Electricity comprehensive experimental instrument integrated case | |
| CN209198629U (en) | Electric automobile whole insulated test device based on twin voltage table | |
| CN206863180U (en) | A kind of generator manually wound insulation reversal connection ray detection device in high potential measurement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150311 Termination date: 20171114 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |