CN201974517U - Metering detection device for earth resistance testers - Google Patents
Metering detection device for earth resistance testers Download PDFInfo
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- CN201974517U CN201974517U CN 201120028855 CN201120028855U CN201974517U CN 201974517 U CN201974517 U CN 201974517U CN 201120028855 CN201120028855 CN 201120028855 CN 201120028855 U CN201120028855 U CN 201120028855U CN 201974517 U CN201974517 U CN 201974517U
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- earth
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- resistance box
- standard resistance
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Abstract
The utility model relates to a metering detection device for earth resistance testers, which comprises a first standard resistance box, a second standard resistance box, a voltmeter and an earth resistance tester to be tested, one end of the first standard resistance box is connected with one end of the second standard resistance box, the other end of the first standard resistance box is respectively connected with the terminal E1 and the terminal E2 of the earth resistance tester to be tested, the other end of the second standard resistance box is connected with the terminal C of the earth resistance tester to be tested, the terminal P of the earth resistance tester to be tested is connected between the first standard resistance box and the second standard resistance box, and both ends of the voltmeter are respectively connected with the terminal E1 and the terminal C of the earth resistance tester to be tested through switches. Compared with the prior art, the metering detection device has the advantages of low cost, small size and the like, is easy to carry, and is suitable for metering earth resistance testers in enterprises.
Description
Technical field
The utility model relates to a kind of instrument pick-up unit, especially relates to a kind of measuring and testing device of earth resistance tester.
Background technology
Domestic, removing metering institute adopts the large-scale platform that meets the Measuring and testing requirement to detect, be limited to condition, at present also can't build the detection that large-scale detection platform is carried out earth resistance equipment in business unit, all these quasi-instruments all send metering institute to detect, and are relatively complicated, sense cycle is long, cost is also higher.
The utility model content
The purpose of this utility model is exactly to provide in order to overcome the defective that above-mentioned prior art exists that a kind of cost is low, volume is little, be easy to carry about with one, adapt to the measuring and testing device that carries out the earth resistance tester of Measuring and testing in the enterprise.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of measuring and testing device of earth resistance tester, it is characterized in that, comprise first standard resistance box, second standard resistance box, voltage table, earth resistance tester to be measured, described first standard resistance box, one end is connected with second standard resistance box, one end, the other end of described first standard resistance box respectively with the terminals E1 of earth resistance tester to be measured, terminals E2 connects, the terminals C that the described second standard resistance box other end is connected on earth resistance tester to be measured connects, the terminals P of described earth resistance tester to be measured is connected between first standard resistance box and second standard resistance box, and described voltage table two ends are connected on the terminals E1 of earth resistance tester to be measured respectively by switch, on the terminals C.
Described first standard resistance box, second standard resistance box are the precision resistance case.
Compared with prior art, the utlity model has following advantage:
1, use the miniature resistance case, take up an area of for a short time, cost is low, with respect to the large test platform, is easy to build test platform.
2, volume is little, is easy to carry about with one, and is convenient to use the some flow detection at each equipment.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
Embodiment
As shown in Figure 1, a kind of measuring and testing device of earth resistance tester, comprise first standard resistance box 3, second standard resistance box 4, voltage table 2, earth resistance tester 1 to be measured, described first standard resistance box, 3 one ends are connected with second standard resistance box, 4 one ends, the other end of described first standard resistance box 3 respectively with the terminals E1 of earth resistance tester 1 to be measured, terminals E2 connects, the terminals C that described second standard resistance box, 4 other ends are connected on earth resistance tester 1 to be measured connects, the terminals P of described earth resistance tester to be measured 1 is connected between first standard resistance box 3 and second standard resistance box 4, and described voltage table 2 two ends are connected on the terminals E1 of earth resistance tester 1 to be measured respectively by switch, on the terminals C.Described first standard resistance box 3, second standard resistance box 4 are the precision resistance case.
Wherein E1, E2 are earth terminal, and E1E2 short circuit in general measuring method, P are the voltage pole contact; C is the electric current polar contact; Gauge internal provides one group of current return by C, and the voltage circuit that measuring P provides is measured resistance value.
Claims (2)
1. the measuring and testing device of an earth resistance tester, it is characterized in that, comprise first standard resistance box, second standard resistance box, voltage table, earth resistance tester to be measured, described first standard resistance box, one end is connected with second standard resistance box, one end, the other end of described first standard resistance box respectively with the terminals E1 of earth resistance tester to be measured, terminals E2 connects, the terminals C that the described second standard resistance box other end is connected on earth resistance tester to be measured connects, the terminals P of described earth resistance tester to be measured is connected between first standard resistance box and second standard resistance box, and described voltage table two ends are connected on the terminals E1 of earth resistance tester to be measured respectively by switch, on the terminals C.
2. the measuring and testing device of a kind of earth resistance tester according to claim 1 is characterized in that, described first standard resistance box, second standard resistance box are the precision resistance case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120028855 CN201974517U (en) | 2011-01-27 | 2011-01-27 | Metering detection device for earth resistance testers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120028855 CN201974517U (en) | 2011-01-27 | 2011-01-27 | Metering detection device for earth resistance testers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201974517U true CN201974517U (en) | 2011-09-14 |
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ID=44579617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120028855 Expired - Fee Related CN201974517U (en) | 2011-01-27 | 2011-01-27 | Metering detection device for earth resistance testers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201974517U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102621511A (en) * | 2011-01-27 | 2012-08-01 | 上海共联通信信息发展有限公司 | Measuring and testing device for ground resistance tester |
| CN102879755A (en) * | 2012-09-20 | 2013-01-16 | 保定供电公司 | Testing instrument for acting performance of insulation monitoring device |
| CN105785303A (en) * | 2016-04-19 | 2016-07-20 | 国家电网公司 | Grounding ohmmeter calibrating device |
-
2011
- 2011-01-27 CN CN 201120028855 patent/CN201974517U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102621511A (en) * | 2011-01-27 | 2012-08-01 | 上海共联通信信息发展有限公司 | Measuring and testing device for ground resistance tester |
| CN102879755A (en) * | 2012-09-20 | 2013-01-16 | 保定供电公司 | Testing instrument for acting performance of insulation monitoring device |
| CN105785303A (en) * | 2016-04-19 | 2016-07-20 | 国家电网公司 | Grounding ohmmeter calibrating device |
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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: 20110914 Termination date: 20160127 |
|
| EXPY | Termination of patent right or utility model |