Product introduction
Test transformers are essential testing equipment for the detection and preventive testing of power equipment. With the development of China's power industry, the voltage level requirements for test transformers are becoming increasingly high. However, traditional test transformers are increasingly unable to meet the requirements of on-site work in terms of volume, weight, and performance. With the progress of basic scientific research in China, the application of new materials and processes has pushed the new medium sulfur hexafluoride gas into the field of power equipment applications. Due to its excellent insulation and arc extinguishing properties, as well as non flammability, sulfur hexafluoride gas has been widely used as a new insulation medium.
After years of effort, our company has successfully developed the YDQ Gas-type AC DC Hipot Tester that is small in size, light in weight, and free of oil pollution. The technical performance of the product has been greatly improved, making it particularly suitable for on-site work and frequent movement conditions.
Product precautions
1. The layout of experimental equipment should have sufficient safety distance around people. Try to avoid placing equipment and applying high voltage leads in personnel corridors as much as possible.
2. Install fences and hang "Stop, High Voltage Danger" signs at the test site.
3. High voltage leads in the experiment should have supporting or traction insulation materials. There should be a safety supervisor and a cable fault tester to prevent anyone from approaching or passing through from underneath.
4. It is best to keep the microampere meter at a high position in the DC high voltage test. In addition to the shielding box, there should be an overcurrent automatic protection device to prevent the meter from burning out in case of sudden breakdown, short circuit or discharge.
5. Power frequency withstand voltage test: Please pay attention to verifying whether the equipment capacity is sufficient and avoid resonance.
6. The working ground wire (high voltage tail, stabilizing capacitor terminal ground wire) and the protective ground wire (operating box shell) should be connected separately and have good grounding performance.
7. If there is irregular swinging of the power supply during the experiment (such as welding), it will inevitably affect the stability of the high-voltage output. At this time, the experiment should be stopped to find out the cause and eliminate it.
8. The requirements for climate (temperature, humidity) in the inspection work should comply with the test regulations and be recorded.
9. The high-voltage testing work must strictly comply with the relevant provisions of the safety work regulations issued by the Ministry of Energy.
Technical parameters
|
Voltage class |
10kV-300kV |
|
Capacity range |
1-500kVA |
|
Impedance voltage |
≤8% |
|
No-load current |
＜7% |
|
Product type |
AC, AC&DC, AC cascade, AC DC cascade. |
Main product specifications
| specifications and models | capacity(kVA) | High Voltage(kV) | High tension current(mA) | low input voltage converter | bend-beam-rheometer | temperature rise℃(30 minutes) | |
| voltage(V) | electricity(A) | ||||||
| YDQ-20/150 | 20 | 150 | 133 | 400 | 53 | 1500 | 10 |
| YDQ-30/150 | 30 | 150 | 200 | 400 | 80 | 1500 | 10 |
| YDQ-50/150 | 50 | 150 | 333 | 400 | 132 | 1500 | 10 |
| YDQ-100/150 | 100 | 150 | 667 | 400 | 263 | 1500 | 10 |
| YDQ-50/200 | 50 | 200 | 250 | 400 | 132 | 2000 | 10 |
| YDQ-100/200 | 100 | 200 | 500 | 400 | 263 | 2000 | 10 |
main purpose
YDQ AC DC Hipot Testers are the preferred equipment for conducting power frequency withstand voltage tests.
1. Handover test of high-voltage electrical equipment: Conduct insulation strength assessment on newly installed power equipment (such as cables, transformers, GIS combination devices, high-voltage switches, etc.) after installation.
2. Preventive testing: Regularly inspect electrical equipment in operation to determine its insulation aging condition and promptly identify potential hazards.
3. Research on insulation materials: Used in the field of scientific research to study the performance of various insulation materials under high electric fields.
4. High voltage laboratory: as the basic equipment for generating high voltage.
Contact us to get AC DC Hipot Tester price.
Hot Tags: ac dc hipot tester, China ac dc hipot tester manufacturers, suppliers, factory, ac hipot tester, hipot automated cable test system, hipot automatic tester, hipot test for consumer electronics, hipot test sequence memory and batch export, hipot withstand test
