Development of advanced built-in surge arresters for distribution system with new zinc-oxide elements

2001 ◽  
Vol 16 (4) ◽  
pp. 576-581 ◽  
Author(s):  
M. Hama ◽  
H. Ishizaka ◽  
J. Shimizu ◽  
S. Nishiki ◽  
I. Kaku
Keyword(s):  
Zinc Oxide ◽  
Distribution System ◽  
Surge Arresters

Electrical Performance of Zinc Oxide Surge Arresters in 22 kV Distribution System Using Thermal Image Camera

2014 ◽  
Vol 931-932 ◽  
pp. 857-861
Author(s):  
Wichet Thipprasert
Keyword(s):  
Zinc Oxide ◽  
Leakage Current ◽  
Distribution System ◽  
Reducing Power ◽  
Thermal Image ◽  
Electrical Performance ◽  
Surge Arresters ◽  
Thermal Image Camera ◽  
Long Time ◽  
Image Camera

Zinc Oxide (ZnO) surge arresters (SAs) experience thermal runaway when the temperature exceeds the acceptable limit. This phenomenon is associated with the increase in resistive leakage current due to degradation. This paper presents the electrical performance of ZnO SAs in 22 kV distribution system using thermal image camera under the power frequency AC operating voltages. When ZnO surge arresters are installation takes a long time in distribution system over than 5 years. For the experimental study, as ZnO installation takes a long time over than 6 years the leakage current is 63.9 mA, temperature difference were measured over a period of time over than 14 degree Celsius. This data will be useful as a guideline for solving problems and reducing power loss from leakage current. Moreover, it will be useful in predicting lifetime of ZnO SAs.

Analytical and Experimental Approach to the Voltage Distribution on Gapless Zinc-Oxide Surge Arresters

1981 ◽  
Vol PER-1 (11) ◽  
pp. 41-42 ◽  
Author(s):  
M. Oyama ◽  
I. Ohshima ◽  
M. Honda ◽  
M. Yamashita ◽  
S. Kojima
Keyword(s):  
Zinc Oxide ◽  
Experimental Approach ◽  
Voltage Distribution ◽  
Surge Arresters

Development of Advanced Built-In Surge Arresters for Distribution Systems with New Zinc-Oxide Elements

2001 ◽  
Vol 21 (8) ◽  
pp. 61-62
Author(s):  
M. Hama ◽  
H. Ishizaka ◽  
J. Shimizu ◽  
S. Nishiki ◽  
I. Kaku
Keyword(s):  
Zinc Oxide ◽  
Distribution Systems ◽  
Surge Arresters

A simplified model for zinc oxide surge arresters

1999 ◽  
Vol 14 (2) ◽  
pp. 393-398 ◽  
Author(s):  
P. Pinceti ◽  
M. Giannettoni
Keyword(s):  
Zinc Oxide ◽  
Simplified Model ◽  
Surge Arresters

Improved zinc oxide surge arresters using high voltage gradient 300 V/mm, 400 V/mm ZnO elements

2000 ◽  
Vol 15 (2) ◽  
pp. 569-574 ◽  
Author(s):  
S. Shirakawa ◽  
S. Yamada ◽  
S. Tanaka ◽  
I. Ejiri ◽  
S. Watahiki ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
High Voltage ◽  
Voltage Gradient ◽  
Surge Arresters

Study on Electrical Characteristics of Metal-Oxide Surge Arresters in Medium Voltage Power System

2014 ◽  
Vol 960-961 ◽  
pp. 1073-1076
Author(s):  
Li Zhang ◽  
Kun Yang ◽  
Li Mei He
Keyword(s):  
Metal Oxide ◽  
Power System ◽  
Distribution System ◽  
Operating Voltage ◽  
Electrical Characteristics ◽  
Protection Level ◽  
Power Distribution System ◽  
Medium Voltage ◽  
Surge Arresters ◽  
Overvoltage Protection

The index system for electrical characteristics of metal-oxide surge arresters is proposed and established, which is based on rated voltage (Ur), continuous operating voltage (Uc), nominal discharge current (In), overvoltage protection and insulation coordination including lightning overvoltage protection level, operating overvoltage protection level and coordination coefficient (Ks). The study considers both selection and application of overvoltage protection devices for the electrical equipments in 3-35kV medium voltage power system, and comparatively calculates and analyzes the main parameters between two types metal-oxide surge arresters (without gaps and containing series gapped structures), and illustrates their technical features and puts forward suggestions on how to improve the effective utilization. The results of 10kV power distribution system are simulated to show that the conclusions are feasible and available in the practical engineering application.

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