Introduction
GOZ-GM-20kV series adjustable digital high voltage meg ohm meter is designed to solve the high-voltage substations and power plants on-site strong interference testing electrical characteristics of the insulation resistance of large high-voltage transformer, electrical appliances, remote power cables or laying cables, and also widely used in wide range of fields electrical insulation resistance characteristic measurements. The adjustable high voltage digital megger has advantages of testing high voltage and large power. The tested objects are with power frequency induction high voltage leak or strong interference, for the personal safety, firstly a ground wire should be connected before using the meter.
Also called: Adjustable high voltage megger, meg ohm meter, digital megger, high voltage megameter
Feature
1. Digital megger has strong electric field induced anti-interference ability up to 2mA (50Hz), known to accommodate 500, 000V substation site wire measuring and 500, 000V transformer insulation resistance parameters testing.
2. Short-circuit current test power > 5mA, maximum 15mA. Adapt to large-capacity, high inductance test.
3. Resistance measurement has wide range, from 0.5MΩ ~ 200000MΩ. Accurate reading, high resolution.
4. Wide supply voltage range, it can choose 0.25, 0.5, 1, 2.5, 5, 10, 15kV, and also from 0V smooth continuous adjustment to the required voltage.
5. The digital meg ohm meter has timing function to remind users recording, and also analyze absorption ratio and polarization index of measured object.
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Parameter |
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1. Specifications |
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Model |
Testing voltage |
Voltage accuracy |
Short circuit current |
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GM-5kV |
0~0.25\0.5\1\2.5\5kV |
±(5%+10V) |
>5mA |
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GM-10kV |
0.5\1\2.5\5\10kV |
±(5%+10V) |
>5mA |
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GM-15kV |
1\2.5\5\10\15kV |
±(5%+10V) |
>5mA |
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GM-25kV |
0.5\1\2.5\5\10\25kV |
±(5%+10V) |
>5mA |
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2. Range and accuracy |
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Range (limit voltage) |
Effective resistance measurement range |
Accuracy |
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25MΩ/500V |
0.5~19.99MΩ |
±(5%+5character) |
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250MΩ/1000V |
5.0~199.9MΩ |
±(5%+5 character) |
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2GΩ |
0.05~1.999GΩ |
±(5%+5 character) |
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25GΩ |
0.5~19.99GΩ |
±(5%+5 character) |
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250GΩ |
50~199.9GΩ |
±(10%+10 character) |
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2500GΩ |
50~1999GΩ |
±(25%+10 character) |
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GΩspan calibration voltage: 2.5kV |
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Electric anti-interference ability |
2mA(50Hz) |
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Timing & alarm |
Stopwatch displays a maximum of 19 minutes and 59 seconds with 20 minutes a cycle. Sound reports in 15 seconds, 60 seconds and every minute. To point reports short sound, and resistance reading lasts for 5 seconds, while the measured resistance is less than the lower limit of the range, the reading is invalid with continuous sound alarm. |
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Show table |
Three and a half LCD digital meters respectively show the test voltage, resistance and time. |
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Power supply |
Enclosing 1.2V / 2000mAh Nimh rechargeable batteries 10, DC12V power supply. With AC (50 / 60Hz) 220V access port for battery charging or floating charge. |
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Using condition |
Temperature: 0~40ºC |
Relative humidity:20~90% |
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Size |
315×240×155mm3 |
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Weight |
5kg |
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GOZ Electrical Co., Ltd (referred to as GOZ) is a high-tech enterprise through asset restructuring and business split from early large state-owned enterprises. GOZ is one of the first key enterprises on R&D, design and manufacture of high voltage power transmission test equipments and instruments. The company is newly located in high-tech industrial development zones - China Optical Valley established in 1988!
Based on China Optoelectronic Industry and Technology Park, committed to improving the capability of independent innovation and enhancing the core competitiveness, the company specializes in the research and development, sales, technical consulting, and engineering services in electrical industry. The company now has employs of above 100 people, college degree or higher than 90%. Besides, the research and innovation staff is accounted for more than 1/3, and has more than 30 senior technical titles with 4 doctors and 21 masters. Adhering to independent innovation, scientific exploration, technology talent excavation, GOZ can build a knowledge-based professional team and form a scientific innovation and technological development as the main self-reliance businesses outlook.
Over the years, GOZ have established close relationship with Wuhan High Voltage Research Institute, Huazhong University of Science and Technology, Nanjing University of Posts and Telecommunications and other famous research institutes and universities. By cooperation, it has developed a number of advanced scientific and technological achievements with independent property rights, mainly providing power generation, power supply, electrical sector, research institutions with advanced high-voltage test equipments, electricity measuring and testing products, substation on-line monitoring systems and related software. GOZ is combined research, production and trade as a whole, and the products are widely used in electricity, water, oil, railway, metallurgy, mining, chemical, telecommunications, meteorology and other related industries with domestic as well as worldwide reputation.
The enterprise fully implements the ISO9001: 2000 international quality management system certification standards, solemn promise: All enterprise products enjoy one year free warranty and lifetime maintenance; If quality problems, it enjoys return within a month, replacement within three months, life-long maintenance services; All products can upgrades software.
"Excellent quality, precise measurement, service-oriented, good faith" is the GOZ self-consistent policies, welcome partners discussion and going-ahead hand in hand.
