Product overview
With the rapid development of China power industry, electrical preventive experiment is an important aspect of electrical power system safe operation and maintenance work. Insulation diagnosis is an important tool to detect the in sulation or fault of electrical equipment
Currently, electrical equipment (such as transformers, generators, etc.) toward the trend of large capacity, high voltage, structural diversification and sealing, this requires insulation resistance tester with advantages of large capacity, strong anti-interference ability, easy to carry and so on. So we designed and developed the series meter especially for strong interference field test for large high voltage transformers, electrical appliances, remote power cables or laying cables and other electrical insulation resistance properties for high-voltage substations, power plants and others.
The instrument system combines analog circuits, digital circuits, mechanically operated advantages, achieved a leading position at the output voltage, output current, measuring range, measurement accuracy, anti-interference ability.
Products features
- 1,With strong anti-electric field interference ability up to 2mA (50Hz), it is suitable for 500kV substation without dismantling wire to test insulation resistance of 500kV large-scale transformer
- 2,The short-circuit current is 10mA, be suitable for testing high capacity and high inductance
- 3,Wide resistance range: 0.01MΩ ~ 1999GΩ. With high-resolution, having accurate readings
- 4,Wide output voltage range: 0.1kV, 0.25kV, 0.5kV, 1kV, 2.5kV, 5kV, adjustable, you can smoothly adjust voltage from 0V to the desired value
- 5,With timing function, remind users to record, and analyze absorptance and polarization index of measured target
- 6,High quality: The key parts are all imported components, to ensure accuracy and accurate
- 7,Easy to use: one-piece chassis, small size, light weight, easy to carry
- 8,Look beautiful: rugged and strong grinding material, the instrument's overall texture and longer life
Technique parameters
1. Technique specifications
| Mode |
Test voltage |
Voltage accuracy |
Short-circuit current |
| GM-5kV |
0.25,0.5,1,2.5,5kV |
±(5%+10V) |
10mA |
| GM-10kV |
0.5,1,2.5,5,10kV |
±(5%+10V) |
10mA |
| GM-15kV |
1,2.5,5,10,15kV |
±(5%+10V) |
10mA |
| GM-20kV |
0.5,1,2.5,5,10,20kV |
±(5%+10V) |
10mA |
2. Range and accuracy
| Range |
Resistance measurement range |
Accuracy |
| 20MΩ/500V |
0.5~19.99 MΩ |
±(5%+5digital) |
| 200MΩ/1000V |
5.0~199.9 MΩ |
±(5%+5digital) |
| 2GΩ |
0.05~1.999 GΩ |
±(5%+5digital) |
| 20GΩ |
0.5~19.99 GΩ |
±(5%+5digital) |
| 200GΩ |
5.0~199.9 GΩ |
±(10%+10digital) |
| 2000GΩ |
50~1999 GΩ |
Less than 1000GΩ ± (20% + 10 digital) (humidity ≤70%) |
Calibration voltage of MΩ range is 0.5kV; Calibration voltage of GΩ range is 2.5kV
| Anti-electric field interference ability |
2mA(50Hz) |
|
| Timekeeping and alarm function |
maximum value of stopwatch is 19 minutes and 59 seconds. 20 minutes for a cycle. The stopwatch will tell the time at these time points: 15 seconds, 60 seconds and every 60 seconds. When telling time, resistance readings hold for 5 seconds. If the measured resistance is below the lower limit of range, the reading is invalid and the instrument will continuously sound to give an alarm |
| Display |
three and a half bits LCD digital meter (three), respectively show test voltage, test resistance, test time |
| Power supply |
10×1.2Vbattery(2000mAh Ni-MH rechargeable battery), total DC12V power supply
AC: 220V (50/60Hz) |
| Operating Conditions |
Temperature:0~40ºC |
Relative humidity:20~90% |
| Dimension |
315×240×155mm3 |
| Weight |
5kg |
Company Profile
FAQ
1. Is your company a sales company or a manufacturer?
Wuhan UHV Power Technology Co.,Ltd. is an industrial and trade enterprise, with its own factory, self-produced and self-sold. We were founded in 2004 and have fifteen years of production experience. Our company has reliable production lines, test rooms and R&D centers.
2. Whether the goods are in stock, whether they can be customized, and how long the delivery time is.
After the goods have been ordered, it takes about 7 working days for production if there are no accidents.
3. Is the quality guaranteed?
In order to ensure quality, we use imported components in large quantities. After three times of quality inspection, the goods can be sent out, and the export is uniformly packed in non-fumigation wooden boxes.
4. What are the after-sales terms?
We offer free consulting service, one year warranty, and adopt various methods such as email communication, video calls, technology door-to-door, aiming to solve any after-sales problems in a timely manner.
5. What are the cooperative countries or regions?
Products have been successfully exported to the United States, Brazil, Australia, Russia, the Netherlands, Indonesia, Bangladesh, Iran, India, Saudi Arabia, Mongolia, Japan and other countries and regions. In the United States, India, Vietnam and other regions have cooperative distributors, can provide thoughtful services.
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