CN102621511A - Measuring and testing device for ground resistance tester - Google Patents
Measuring and testing device for ground resistance tester Download PDFInfo
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- CN102621511A CN102621511A CN2011100301664A CN201110030166A CN102621511A CN 102621511 A CN102621511 A CN 102621511A CN 2011100301664 A CN2011100301664 A CN 2011100301664A CN 201110030166 A CN201110030166 A CN 201110030166A CN 102621511 A CN102621511 A CN 102621511A
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Abstract
The invention relates to a measuring and testing device for a ground resistance tester, the measuring and testing device comprises a first standard resistance box, a second standard resistance box, a voltmeter and a ground resistance tester to be measured and 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 a terminal E1 and a terminal E2 of the ground resistance tester to be measured and tested, the other end of the second standard resistance box is connected with a terminal C of the ground resistance tester to be measured and tested, a terminal P of the ground resistance tester to be measured and 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 ground resistance tester to be measured and tested through switches. Compared with the prior art, the measuring and testing device of the invention has the advantages of low cost, small size, and good portability, and is suitable for measuring and testing ground resistance tester in enterprises.
Description
Technical field
The present invention relates to a kind of instrument pick-up unit, especially relate 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 large-scale detection platform in business unit and carry out the earth resistance equipment testing, all these quasi-instruments all send metering institute to detect, and are relatively complicated, sense cycle is long, cost is also higher.
Summary of the invention
The object of the invention 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 object of the invention can be realized through following technical scheme:
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 is connected with terminals E1, the terminals E2 of earth resistance tester to be measured respectively; The terminals C that the described second standard resistance box other end is connected on earth resistance tester to be measured connects, and 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 respectively on the terminals E1, terminals C of earth resistance tester to be measured through switch.
Described first standard resistance box, second standard resistance box are the precision resistance case.
Compared with prior art, the present invention has the following advantages:
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 invention.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention 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 to be measured 1; 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 is connected with terminals E1, the terminals E2 of earth resistance tester 1 to be measured respectively; The terminals C that described second standard resistance box, 4 other ends are connected on earth resistance tester 1 to be measured connects, and the terminals P of described earth resistance tester 1 to be measured is connected between first standard resistance box 3 and second standard resistance box 4, and described voltage table 2 two ends are connected on respectively on the terminals E1, terminals C of earth resistance tester 1 to be measured through switch.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 through 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 is connected with terminals E1, the terminals E2 of earth resistance tester to be measured respectively; The terminals C that the described second standard resistance box other end is connected on earth resistance tester to be measured connects, and 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 respectively on the terminals E1, terminals C of earth resistance tester to be measured through switch.
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 |
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CN2011100301664A CN102621511A (en) | 2011-01-27 | 2011-01-27 | Measuring and testing device for ground resistance tester |
Applications Claiming Priority (1)
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CN2011100301664A CN102621511A (en) | 2011-01-27 | 2011-01-27 | Measuring and testing device for ground resistance tester |
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CN102621511A true CN102621511A (en) | 2012-08-01 |
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CN2011100301664A Pending CN102621511A (en) | 2011-01-27 | 2011-01-27 | Measuring and testing device for ground resistance tester |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104833934A (en) * | 2015-04-14 | 2015-08-12 | 北京华科兴盛电力工程技术有限公司 | Ground resistance tester verifying apparatus |
CN108508391A (en) * | 2018-06-04 | 2018-09-07 | 福建省计量科学研究院(福建省眼镜质量检验站) | A kind of four probe resistance rate tester calibration modules |
CN108710096A (en) * | 2018-08-22 | 2018-10-26 | 深圳德晋科技有限公司 | Earth-continuity tester calibrating installation |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000304788A (en) * | 1999-04-21 | 2000-11-02 | Nippon Telegraph & Telephone East Corp | Instrument and method for measuring grounding resistance using signal-to-voltage ratio |
JP2003245015A (en) * | 2002-02-25 | 2003-09-02 | Itsuo Yamaura | Method for measuring earthing resistance of plant, and apparatus for measuring earthing resistance by the method |
CN201974517U (en) * | 2011-01-27 | 2011-09-14 | 上海共联通信信息发展有限公司 | Metering detection device for earth resistance testers |
-
2011
- 2011-01-27 CN CN2011100301664A patent/CN102621511A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000304788A (en) * | 1999-04-21 | 2000-11-02 | Nippon Telegraph & Telephone East Corp | Instrument and method for measuring grounding resistance using signal-to-voltage ratio |
JP2003245015A (en) * | 2002-02-25 | 2003-09-02 | Itsuo Yamaura | Method for measuring earthing resistance of plant, and apparatus for measuring earthing resistance by the method |
CN201974517U (en) * | 2011-01-27 | 2011-09-14 | 上海共联通信信息发展有限公司 | Metering detection device for earth resistance testers |
Non-Patent Citations (2)
Title |
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孙丽华等: "《中华人民共和国国家计量检定规程》", 1 December 2004, 国家质量监督检验检疫总局 * |
申莉等: "接地电阻的测量和接地电阻表的检定", 《湖北电力》 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104833934A (en) * | 2015-04-14 | 2015-08-12 | 北京华科兴盛电力工程技术有限公司 | Ground resistance tester verifying apparatus |
CN104833934B (en) * | 2015-04-14 | 2018-05-04 | 北京华科兴盛电力工程技术有限公司 | Earth resistance tester calibration equipment |
CN108508391A (en) * | 2018-06-04 | 2018-09-07 | 福建省计量科学研究院(福建省眼镜质量检验站) | A kind of four probe resistance rate tester calibration modules |
CN108710096A (en) * | 2018-08-22 | 2018-10-26 | 深圳德晋科技有限公司 | Earth-continuity tester calibrating installation |
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Application publication date: 20120801 |