Under pressure of 0.25MPa, the puncture voltage is equal as oil, under the 0.45MPa, the puncture voltage is 2 times better than oil, that's a new generation of ultra-high voltage insulted material. Series NAYDQ inflatable testing transformer technical requirements in full compliance with "ZBK-41006-89" standard, which is light and small, and also a upgrade product for oil-immersed testing transformer. Series NAYDQ inflatable testing transformer with small size, light weight, weather-proof, with small corona, on-site operating without stationary, long life and maintenance-free. Used for power systems, industrial and mining enterprises, scientific research departments of various high voltage electrical equipment , electrical components , insulation materials under high pressure frequency or DC dielectric strength test.
 
Characteristics of the products
1,The inflatable testing transformer , small in size, light in weight ( compared with the same level of oil-immersed transformer tested 40% -65 % lighter )
2,Clean, greaseless , do not need to maintenance
3,Weather-proof , on site testing without standstill.
4,The dielectric strength is higher than the oil-immersed testing transformer dielectric strength test transformer oil significantly , and the corona is minimal.
 
Parameters of the products
1.Voltage class: 10kV~600kV
2. Capacity range: 1~500KVA
3. No-load current:< 7%
4. Impedance voltage:< 8%
5. Type of production: AC, DC&AC, AC cascade, AD & DC cascade.