CN202939297U - Verification system for ground resistance tester - Google Patents
Verification system for ground resistance tester Download PDFInfo
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- CN202939297U CN202939297U CN 201220569744 CN201220569744U CN202939297U CN 202939297 U CN202939297 U CN 202939297U CN 201220569744 CN201220569744 CN 201220569744 CN 201220569744 U CN201220569744 U CN 201220569744U CN 202939297 U CN202939297 U CN 202939297U
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- 238000012795 verification Methods 0.000 title claims abstract description 13
- 238000012360 testing method Methods 0.000 claims abstract description 76
- 230000010354 integration Effects 0.000 claims description 30
- 230000033228 biological regulation Effects 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000006698 induction Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 238000003786 synthesis reaction Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 8
- 238000005259 measurement Methods 0.000 description 5
- 230000002950 deficient Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010616 electrical installation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The utility model discloses a verification system for a ground resistance tester. The system comprises a computer, a comprehensive general safety performance testing unit, a comprehensive power supply performance testing unit and a comprehensive metering performance testing unit, and is characterized in that the computer is respectively connected with the comprehensive general safety performance testing unit, the comprehensive power supply performance testing unit and the comprehensive metering performance testing unit. The verification system for the ground resistance tester has the beneficial effects that the system can be controlled to carry out automatic test on the ground resistance tester via one computer, the test means are comprehensive, and the test precision is high under complicated environment.
Description
Technical field
The utility model relates to the detection system of measurement instrument in power domain, refers to particularly a kind of verification system of earth resistance tester.
Background technology
Earth resistance tester is the Common Instrument of checking measurements stake resistance, be also electrical safety inspection and the indispensable instrument of earth work final acceptance of construction, be widely used in the grounding resistance measurement of electric power, telecommunications, meteorology, oil field, building and industrial electrical installation.At present, only be only limited to calibrating to resistance measurement for the detection of earth resistance tester, a lot of instruments are no problem when calibrating department uses pure resistance to examine and determine, but when testing to the scene, it is too large that the measurement result deviation will appear, this is mainly because detection means is single, does not carry out that complete detection causes.
Summary of the invention
The purpose of this utility model be for overcome above-mentioned deficiency provide a kind of simple in structure, verification result accurately, the verification system of the earth resistance tester that can automatically realize.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of verification system of earth resistance tester, comprise computing machine, the integration test of universal safety performance unit, power source performance integration test unit and metering performance integration test unit, computing machine is connected with metering performance integration test unit with universal safety technological synthesis test cell, power source performance integration test unit respectively; Wherein,
Computing machine: be used for to control each component units, to the data of each component units gather, analysis and record, at last result is judged and printed report;
Universal safety performance integration test unit: be used for the universal safety performance of test earth resistance tester, and the data that record are sent to computing machine;
Power source performance integration test unit: for detection of the power source performance of earth resistance tester, and the data that record are sent to computing machine;
Metering performance integration test unit: be used for the metering performance of test earth resistance tester, and the data that record are sent to computing machine.
Described universal safety performance integration test unit is comprised of the alternating current-direct current Hi-pot Tester, and described alternating current-direct current Hi-pot Tester is integrated by alternating-voltage generator, direct current resistance detecting device and direct current detector; Wherein,
Alternating-voltage generator: the dielectric strength that is used for the test earth resistance tester;
Direct current resistance detecting device: the insulation resistance that is used for the test earth resistance tester;
Direct current detector: the leakage current that is used for the test earth resistance tester.
Described power source performance integration test unit is in parallel by stake resistance parameter tester, standard resistance box, line regulation proving installation and high-power rheostat.
Described metering performance integration test unit is in parallel by measuring resistance/auxiliary resistance case, ground voltage analogue means and standard induction reactance/capacitive.
The beneficial effects of the utility model are can earth resistance tester automatically to be detected control system by a computing machine, and detection means is comprehensive, and accuracy of detection is high under complex environment.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Further illustrate the utility model below in conjunction with drawings and Examples.
Embodiment: the verification system of earth resistance tester described in the utility model, comprise computing machine 123, the integration test of universal safety performance unit 1, power source performance integration test unit 2 and metering performance integration test unit 3, computing machine 123 is connected with metering performance integration test unit with universal safety technological synthesis test cell 1, power source performance integration test unit 2 respectively and is connected; Wherein,
Computing machine 123: be used for to control each component units, to the data of each component units gather, analysis and record, at last result is judged and printed report;
Universal safety performance integration test unit 1: be used for the universal safety performance of test earth resistance tester 4, and the data that record are sent to computing machine 123;
Power source performance integration test unit 2: for detection of the power source performance of earth resistance tester 4, and the data that record are sent to computing machine 123;
Metering performance integration test unit 3: be used for the metering performance of test earth resistance tester 4, and the data that record are sent to computing machine 123.
Described universal safety performance integration test unit 1 is comprised of alternating current-direct current Hi-pot Tester 11, and described alternating current-direct current Hi-pot Tester 11 is integrated by alternating-voltage generator 12, direct current resistance detecting device 13 and direct current detector 14; Wherein,
Alternating-voltage generator 12: the dielectric strength that is used for the test earth resistance tester;
In practical application, earth resistance tester 4 is connected with AC withstand voltage tester 11, by computer control, the correlation parameters such as amplitude, pressure-resistant time of alternating voltage are set, begin test, 11 outputs of alternating current-direct current Hi-pot Tester are up to the alternating voltage of 5KV, earth resistance tester 4 is carried out withstand voltage, as test normally, computing machine 123 records test value, and it is qualified to judge, otherwise computing machine 123 judgements are defective.
Direct current resistance detecting device: the insulation resistance that is used for the test earth resistance tester;
In practical application, with earth resistance tester 4 and AC withstand voltage tester 11, control by computing machine 123, the correlation parameters such as amplitude, test duration of DC voltage are set, begin test, 11 outputs of alternating current-direct current Hi-pot Tester are up to the DC voltage of 2KV, earth resistance tester 4 is carried out the direct current resistance test, as test normally, computing machine 123 records the test resistance value, and it is qualified to judge, otherwise computing machine 123 judgements are defective.
Direct current detector: the leakage current that is used for the test earth resistance tester.
In practical application, earth resistance tester 4 is connected with AC withstand voltage tester 11, control by computing machine 123, the correlation parameters such as amplitude, test duration of DC voltage are set, begin test, 11 outputs of alternating current-direct current Hi-pot Tester are up to the DC voltage of 2KV, earth resistance tester 4 is carried out the DC current test, as test normally, computing machine 123 records the test resistance value, and it is qualified to judge, otherwise computing machine 123 judgements are defective.
Described power source performance integration test unit 2 is by stake resistance parameter tester 21, standard resistance box 22, line regulation proving installation 23 and 24 parallel connections of high-power rheostat.
In practical application, when detecting the load-bearing capacity of earth resistance tester 4, earth resistance tester 4 is connected to high-power rheostat 24, then control earth resistance tester 4 up-flows, electric current is raised to 120% of rated current, kept 5 minutes, watch whether damage when detecting the load-bearing capacity of earth resistance tester 4 or data whether overproof, data manually are input to computing machine 123 carry out discriminatory analysis.
When detecting the line regulation of earth resistance tester 4, earth resistance tester 4 is connected to line regulation device 23, write down test data when voltage is transferred to 220V, then voltage is transferred to 180V and 250V, see whether the test data of each point is overproof; If the earth resistance tester 4 of electrochmical power source power supply, earth resistance tester 4 is connected to stake resistance parameter tester 21, voltage is transferred to positive and negative 10% of rated voltage, whether overproofly see if there is low-voltage demonstration or data, magnitude of voltage, test data manually are input to computing machine 123 softwares calculate, analyze.
When detecting the output frequency of earth resistance tester 4, after being connected to standard resistance box 22, earth resistance tester 4 carries out proper testing, the output frequency of tested device 4 detected with stake resistance parameter tester 21.The data such as the frequency of test, voltage, electric current, waveform are recorded to computing machine 123 and analyze and judge.
When the measuring current that detects earth resistance tester 4 and resistance range, earth resistance tester 4 is connected high-power rheostat 24, then high-power rheostat 24 is transferred to the upper bound current value of earth resistance tester 4, when seeing earth resistance tester 4 test, whether output can reach the lowest high-current value of demarcation, and data will manually be input to computing machine 123 and analyze; Follow the resistance range according to earth resistance tester 4 nominals, connect standard resistance box 22, resistance is switched to the upper limit resistance value of earth resistance tester 4, see whether earth resistance tester 4 can measure the maximum resistance of demarcation smoothly, and data will automatically be input to computing machine 123 and analyze.
Described metering performance integration test unit is in parallel by measuring resistance/auxiliary resistance case, ground voltage analogue means and standard induction reactance/capacitive.
When detecting the error of earth resistance tester 4, standard resistance box 31 is connected to earth resistance tester 4, select different resistance values, operational grounding resistance meter 4 is tested, and the test error data are input to computing machine 123 and analyze and judge.
When the position influence test that detects earth resistance tester 4, standard resistance box 31 is connected to earth resistance tester 4, select different resistance values, operational grounding resistance meter 4 is tested, then test again after the position of mobile grounding resistance meter 4 and direction, see earth resistance tester 4 in the situation that the situation of change of different azimuth, different placed angle test errors enters data at last computing machine 123 and analyzes and judge.
Claims (4)
1. the verification system of an earth resistance tester, comprise computing machine, the integration test of universal safety performance unit, power source performance integration test unit and metering performance integration test unit, it is characterized in that: computing machine is connected with metering performance integration test unit with universal safety technological synthesis test cell, power source performance integration test unit respectively.
2. the verification system of earth resistance tester according to claim 1, is characterized in that institute
Stating universal safety performance integration test unit is the alternating current-direct current Hi-pot Tester, and described alternating current-direct current Hi-pot Tester is formed in parallel by alternating-voltage generator, direct current resistance detecting device and direct current detector.
3. the verification system of earth resistance tester according to claim 1 is characterized in that described power source performance integration test unit is formed in parallel by stake resistance parameter tester, standard resistance box, line regulation proving installation and high-power rheostat.
4. the verification system of earth resistance tester according to claim 1 is characterized in that described metering performance integration test unit is formed in parallel by measuring resistance/auxiliary resistance case, ground voltage analogue means and standard induction reactance/capacitive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220569744 CN202939297U (en) | 2012-10-31 | 2012-10-31 | Verification system for ground resistance tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220569744 CN202939297U (en) | 2012-10-31 | 2012-10-31 | Verification system for ground resistance tester |
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| Publication Number | Publication Date |
|---|---|
| CN202939297U true CN202939297U (en) | 2013-05-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220569744 Expired - Fee Related CN202939297U (en) | 2012-10-31 | 2012-10-31 | Verification system for ground resistance tester |
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| CN (1) | CN202939297U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103487775A (en) * | 2013-09-09 | 2014-01-01 | 沈阳计量测试院 | Intelligent digital micro resistor standard device |
| CN108548962A (en) * | 2018-04-13 | 2018-09-18 | 国网上海市电力公司 | A kind of grounded screen alternating current and direct current and impulse resistance integrated test system and method |
| CN110927645A (en) * | 2019-10-29 | 2020-03-27 | 威凯检测技术有限公司 | Insulation resistance detection capability verification method |
-
2012
- 2012-10-31 CN CN 201220569744 patent/CN202939297U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103487775A (en) * | 2013-09-09 | 2014-01-01 | 沈阳计量测试院 | Intelligent digital micro resistor standard device |
| CN103487775B (en) * | 2013-09-09 | 2016-01-27 | 沈阳计量测试院 | Intelligent digital micro resistor standard device |
| CN108548962A (en) * | 2018-04-13 | 2018-09-18 | 国网上海市电力公司 | A kind of grounded screen alternating current and direct current and impulse resistance integrated test system and method |
| CN110927645A (en) * | 2019-10-29 | 2020-03-27 | 威凯检测技术有限公司 | Insulation resistance detection capability verification method |
| CN110927645B (en) * | 2019-10-29 | 2022-06-21 | 威凯检测技术有限公司 | Insulation resistance detection capability verification method |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130515 Termination date: 20201031 |
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| CF01 | Termination of patent right due to non-payment of annual fee |