Title :
A consideration of distorted ac loss-current from water treeing degraded polyethylene
Author :
Kawai, Jiro ; Shinagawa, Junichi ; Nakamura, Shuhei ; Iida, Kazuo ; Sawa, Goro
Author_Institution :
Showa Electr. Wire & Cable Co. Ltd., Sagamihara, Japan
Abstract :
As a candidate for the appearance of the distorted ac loss current from the non-penetrated water tree sheet sample, we have discussed the modified Maxwell-Wagner model. This model takes account of a nonlinear electrical conduction mechanism in the water tree region. By numerically solving a nonlinear differential equation, ac loss current was calculated. It has been found that this model can explain qualitatively the experimental results
Keywords :
polyethylene insulation; trees (electrical); AC loss current; Maxwell-Wagner model; harmonic wave distortion; insulation degradation; nonlinear differential equation; nonlinear electrical conduction; polyethylene; water treeing; Capacitance; Circuits; Conductivity; Degradation; Differential equations; Electric fields; Electrodes; Polyethylene; Trees - insulation; Voltage;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 1998. Annual Report. Conference on
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-5035-9
DOI :
10.1109/CEIDP.1998.732978
