Standard industrial testing of high-voltage varistors for surge arresters demands application of high voltages and intensive currents. Nondestructive methods for varistor quality and endurance evaluation have been proposed and described. They rely on the application of resonant ultrasound spectroscopy, electro-ultrasonic spectroscopy, noise measurement and nonlinearity testing at voltages lower than continuous operating range. The achieved results show that these methods could be successively applied for varistor specimens at the production stage and in laboratory circumstances.
Authors
- dr inż. Lech Hasse link open in new tab ,
- prof. dr hab. inż. Janusz Smulko link open in new tab ,
- dr hab. inż. Marek Olesz link open in new tab ,
- Vlasta Sedlakova,
- Josef Sikula,
- Petr Sedlak
Additional information
- Category
- Publikacja w czasopiśmie
- Type
- artykuły w czasopismach recenzowanych i innych wydawnictwach ciągłych
- Language
- angielski
- Publication year
- 2011
