LYHC-938Type Oil withstand voltage tester is newly designed according to the requirements in IEC 156 standard, Testing method for dielectric strength of insulating oil, and GB 507-86, sufficiently considering home and foreign users’ demands.
Oil withstand voltage tester adopts digital display and locking technologies with direct reading and high measuring precision. In the products, there are spherical electrodes, spherical cap electrodes, large-plate electrodes and other standard electrodes used home and abroad, as well as small space electrodes, small-plate electrodes and other non-standard electrodes. Therefore, one machine can offer multiple requirements to the user. This product adopts special processing method, providing special type high strength insulation transformer and maximum measuring range of 0 to 80kV, and it is small and light. Standard ground wire earthing reliability will be capable of ensuring safety of the product. When oil breakdown, the overcurrent protection set at 0.02s will automatically switch off power supply. This product is safe and reliable, capable of meeting the requirements for testing dielectric strength of various insulating oils.
Oil withstand voltage tester uses reversible motor and voltage regulator for automatic and even voltage rise. In case of oil breakdown, the protection system will automatically cut off power supply. There is small discharge sparkle during breakdown. No obvious free carbon produced. When testing is performed for six times in succession, there is only small decentrality. No agitation between electrodes is necessary. Oil cup is placed in sealed glass cowl, where there is interlocking device, opening the oil cup will automatically cut off high voltage circuit. No stored electric charges. Personal safety is ensured.
III. Oil withstand voltage tester Main technical parameters
1. Measuring range: 0 to 80kV Max.
2. AC power supply: single phase 220V, 50Hz
3. Voltage rise speed: 2kV/S±5%
4. Electrode form: plate
5. Voltage distortion: ＜5%
6. Display precision: ±1.5%
7. Space between electrodes: 1.25mm for small plate, 2.5mm for others
8. Environment condition: temperature: -10 to 40℃, relative humidity: ≯75%
9. Size: 400×300×300mm
10. Weight: approx. 25kg.
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