Short-Time Impulse Voltage Characteristics of Tank-Type Oil Circuit Breakers [includes discussion]

journal article
Published by Institute of Electrical and Electronics Engineers (IEEE) in Transactions of the American Institute of Electrical Engineers. Part III: Power Apparatus and Systems

Vol. 72 (5) , 998-1000
https://doi.org/10.1109/aieepas.1953.4498733

Abstract

Insulation co-ordination is a major consideration in the cost and design of a complete electric power system and of all individual pieces of apparatus. Basic impulse insulation levels (BIL) have been standardized so that apparatus and protective equipment can be co-ordinated. These levels are measured by withstands on specified test waves. Depending upon the type of protective device and the physical arrangement of the station, short-time voltage surges having crests above the BIL may be present and will require special consideration to insure insulation co-ordination. To determine the short-time impulse voltage characteristic of tank-type oil circuit breakers, tests were made on a representative breaker. The conclusion is that the short-time impulse characteristic of the complete breaker is comparable to that of the bushing alone.

Keywords

This publication has 6 references indexed in Scilit:

Co-ordination of Lightning Arrester Location with Transformer Insulation Level
Transactions of the American Institute of Electrical Engineers, 1950
Lightning arresters as a criterion for insulation levels
Transactions of the American Institute of Electrical Engineers, 1950
Dielectric Strength of Oil for High- Voltage Testing of Oil Circuit Breakers
Transactions of the American Institute of Electrical Engineers, 1941
Volt-Time Areas of Impulse Spark-Over
Transactions of the American Institute of Electrical Engineers, 1941
Surge-Voltage Breakdown Characteristics for Electrical Gaps in Oil
Transactions of the American Institute of Electrical Engineers, 1940
Short-Time Spark-Over of Gaps
Transactions of the American Institute of Electrical Engineers, 1937