Results 291 to 300 of about 4,416 (303)
Some of the next articles are maybe not open access.
Comments on metal oxide surge arresters surges energy absorption capacity
Conference Record of the 1996 IEEE International Symposium on Electrical Insulation, 2002This paper presents an approach to determine the energy absorption capacity of metal oxide surge arrester resistors. The proposed approach deals with the discharge current peak versus discharge current time relation. A testing method and a statistical evaluation are proposed.
M.L.B. Martinez, L.C. Zanetta
openaire +2 more sources
Electrothermal model for complete metal-oxide surge arresters
IEE Proceedings - Generation, Transmission and Distribution, 1999A computational, electrothermal model for a complete metal-oxide surge arrester based on the implicit form of the finite-differences method is presented. The model is used to calculate the cooling curve after the application of overvoltages and the temperature variations during standard test.
A. Guedes da Lima+2 more
openaire +3 more sources
Determination of surge arrester location in the switchyard
2000Model for surge arrester location in the switchyard is given in this paper. Mathematical model is supported by realistic example.
Medić, Ivan+2 more
openaire +1 more source
Reliability of station class surge arresters
Conference Record of the the 2002 IEEE International Symposium on Electrical Insulation (Cat. No.02CH37316), 2003Power transformers installed in the 1960s and 1970s were protected by surge arresters with gaps and silicon carbide valve elements. Many of these arresters are still in service but the population is declining. By 1980, gapless zinc oxide arresters were being installed in all new installations. There are two reliability issues involving surge arresters:
openaire +2 more sources
Thermal Properties of Metal Oxide Surge Arresters
IEEE Power Engineering Review, 1983The thermal properties of metal oxide surge arresters have been represented as a simple analog og model. This model can be used for steady-state and transient simulation of arrester performance in field or laboratory conditions. Model parameters can be determined analytically from physical dimensions of a particular arrester unit or derived by ...
openaire +2 more sources
Study of switching surge characteristics for ZnO surge arresters
Electrical Engineering in Japan, 1980Soji Kojima+3 more
openaire +2 more sources
Correction to "Surge Arrester Protection and Very Fast Surges"
IEEE Transactions on Power Apparatus and Systems, 1983D. E. Hedman+3 more
openaire +2 more sources