1. Gupta TK. Application of zinc oxide varistors. J Am Ceram Soc 1990, 73: 1817–1840.
2. Imai T, Udagawa T, Ando H, et al. Development of high gradient zinc oxide nonlinear resistors and their application to surge arresters. IEEE T Power Deliver 1998, 13: 1182–1187.
3. Chi YJ, Zhong QD, Zhang JP, et al. The progress on the high energy discharge capability of ZnO varistors. Insul Surg Arresters 2004, 6: 29–33 (in Chinese).
4. Liu YF. Using nanomaterials to improve the discharging capability of zinc oxide varistor. Insul Surg Arresters 2003, 2: 36–39 (in Chinese).
5. Wang YP, Li ST, Sun XC. Progress in development and application of ZnO varistors. Electr Eng 2006, 10: 17–24 (in Chinese).