China made hmdq 500V, 1000V, 5000V Insulation resistance tester Digital Megohmmeter
I.Overview
The rapid development of modern industry, the insulation test of high-voltage equipment puts forward higher requirements, and the traditional measurement methods will face severe tests. With the large-scale application practice of optical fiber in intelligent substation, HM2306 10KV insulation resistance tester has good insulation and anti-interference ability, high measurement accuracy, easy miniaturization, and extremely low failure rate, which has received extensive attention. It is widely used to solve the evaluation of electrical insulation quality of large high-voltage transformers, electric motors, generators, long-distance power cables and tubular busbars under high-voltage substation and power plant on-site strong interference.
II.Technical specifications
1.Safety specifications
IEC 61010-1 CAT.IV 600V Pollution degree 2
IEC 61326 EMC specification: electrical equipment for testing, control and inspection
IEC60529 IP64 (outer box closed state)
The safety performance of this instrument complies with the international standard IEC61010-1:2001.
This instrument implements the standard Q/WKD10.
2.Insulation resistance: 50MW (between measuring circuit and shell)
3.Withstand voltage: AC 10kV 50Hz 1min (between measuring circuit and shell)
4.Working temperature and humidity: -10ºC ~ +50ºC 85%RH
5.Storage temperature and humidity: -15ºC ~ +55ºC 90%RH
6. Charging power supply: 220V±10%, 50/60 HZ
7. Battery power supply: 19V 2600mAH lithium ion rechargeable battery
8. Size 27 ×22 ×15cm
9. Net Weight: 8kg
10.Display mode: digital and analog pointer dual display
III.Measurement accuracy
| Features |
SET V |
Measuring range |
Precision |
Resolution |
Insulation resistance value |
250V |
1 MΩ~10MΩ |
±10%rdg±5dgt |
0.01MΩ |
| 10 MΩ~1000MΩ |
±10%rdg±5dgt |
0.1MΩ |
| 1GΩ~5GΩ |
±20%rdg±5dgt |
0.01GΩ |
| 500V |
1 MΩ~10MΩ |
±10%rdg±5dgt |
0.01MΩ |
| 10 MΩ~1000MΩ |
±10%rdg±5dgt |
0.1MΩ |
| 1GΩ~10GΩ |
±20%rdg±5dgt |
0.01GΩ |
| 1kV |
1MΩ~10MΩ |
±10%rdg±5dgt |
0.01MΩ |
| 10 MΩ~1000MΩ |
±10%rdg±5dgt |
0.1MΩ |
| 1GΩ~10GΩ |
±10%rdg±5dgt |
0.01GΩ |
| 10GΩ~100GΩ |
±20%rdg±5dgt |
0.1GΩ |
| 2.5kV |
1 MΩ~10MΩ |
±10%rdg±5dgt |
0.01MΩ |
| 10 MΩ~1000MΩ |
±10%rdg±5dgt |
0.1MΩ |
| 1 GΩ~10GΩ |
±10%rdg±5dgt |
0.01GΩ |
| 10 GΩ~200GΩ |
±20%rdg±5dgt |
0.1GΩ |
| 5kV |
1 MΩ~10MΩ |
±10%rdg±5dgt |
0.01MΩ |
| 10 MΩ~1000MΩ |
±10%rdg±5dgt |
0.1MΩ |
| 1 GΩ~100GΩ |
±10%rdg±5dgt |
0.01GΩ |
| 100 GΩ~1000GΩ |
±20%rdg±5dgt |
0.1GΩ |
| SET V |
Open circuit/load voltage range |
| 250v |
-5%-+20% |
| 500 |
-5%-+20% |
| 1kV |
-5%-+20% |
| 2.5kV |
-5%-+20% |
| 5kV |
-5%-+20% |
| Short circuit current |
≥7mA |
| PI/DAR |
Measuring range : 0.01 ~9999.99
Maximum error : ±(1%RDG+1d) |
| Warn |
<AC 2kV |
IV. Features.
The insulation resistance tester has a shock-proof, dust-proof, and moisture-proof structure. It is a commonly used and indispensable instrument for telecommunications, electric power, meteorology, computer rooms, oil fields, electromechanical installation and maintenance, and industrial enterprises that use electricity as industrial power or energy. It is suitable for measuring the resistance value of various insulating materials and the insulation resistance of transformers, motors, cables and electrical equipment.
1.Designed in strict accordance with safety standards, output voltage: 250v, 500v 1000v, 2500v, 5000v.
2.The equipment self-checking function can automatically detect whether the measuring circuit is normal.
3.This instrument has the function of measuring the charged voltage of the actual sample, the function of leakage current measurement, and the function of automatic discharge. Through the function of measuring the charged voltage of the actual sample, it can be intuitively seen whether the drop voltage of the test instrument meets the national requirements.
4.It can automatically measure and memorize R15S, R60S, R10min values, and automatically display the polarization index (PI), the dielectric absorption ratio (DAR) test value and test time.
5.For the safety warning signs "" in the instrument and manual, the user must strictly follow the contents of this manual for safe operation.
6.The analog pointer and the digital display coexist, the number reflects the accuracy of the insulation resistance of the tested product, and the analog pointer can reflect the dynamic change of the insulation resistance during the test.
7.Alarm function when boosting, warning lights and buzzers have high voltage output, keep away from the test site, and the warning sound will automatically stop after the test.
8.Battery power symbol display and undervoltage alarm protection function (intelligent battery charging management).
9.Automatic shutdown function: automatic shutdown after 10 minutes of measurement without any operation.
10.Short circuit protection, the test is stopped when the leakage current is large in the short circuit state.
V. Related Products.
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