Results 191 to 200 of about 8,814 (230)
Some of the next articles are maybe not open access.
General Guidelines for Vacuum Circuit Breaker Application
IEEE Transactions on Industry Applications, 1972Vacuum circuit breakers have been used successfully in a variety of applications, spanning duties from fault interruption to highly repetitive arc-furnace switching. Application guidelines that have resulted from extensive engineering investigations and successful experience in service are described.
D. R. Kurtz, J. H. Simpson
openaire +1 more source
Russian vacuum circuit breakers for electrical networks
Proceedings of 17th International Symposium on Discharges and Electrical Insulation in Vacuum, 2002Development of vacuum interrupters (VI) and vacuum circuit breakers (VCB) was started in the USSR under the guidance of V. Granovsky in the All-Union Electrotechnical Institute (VEI, 1955-1964) and then continued by his colleagues and scholars in different scientific and industrial establishments.
A.M. Chaly +3 more
openaire +1 more source
Vacuum circuit breaker with asymmetrical actuator
IEEE/PES Transmission and Distribution Conference and Exhibition, 2003During the last decades vacuum replaced air, oil and almost SF/sub 6/ as switching medium in medium voltage circuit breakers. Beside the ecological and economic advantages vacuum is a proper solution for all switching applications. The range of applications last from switching of loads, such as transformers, motors to the switching of short circuit ...
openaire +1 more source
The testing of vacuum generator circuit breakers
IET Conference Publications, 2009Testing of generator breakers is usually in accordance with the standard IEEE Std. C37.013, to be included in the IEC framework soon.
Smeets, R.P.P. +4 more
openaire +2 more sources
Surge Limiters for Vacuum Circuit Breaker Switchgear
IEEE Transactions on Power Delivery, 1987The use of vacuum circult breakers In motor feeder applications (where motor terminal surge protection is not normally used) may require overvoltage surge protection within the switchgear to properly protect the motors. This need can be fulfilled by surge limiters designed for installation within the switchgear connected to the load side of the vacuum ...
S. H. Telander +2 more
openaire +1 more source
Vacuum Circuit Breakers at Transmission Voltage Level
2021Previously, there was a general idea that all technologies in developing transmission voltage level vacuum circuit breakers were based on medium voltage vacuum circuit breakers. No essentially new technical features were necessary, while it was only an extrapolation in geometry.
Zhiyuan Liu +3 more
openaire +1 more source
Vacuum Circuit Breaker Fault Diagnosis System
Applied Mechanics and Materials, 2012Vacuum circuit breaker becomes more and more complicated, integrated, high-speed and intellectualized. To insure vacuum circuit breaker in its good conditions, the function of fault diagnosis gets more important than before in the process of repairing. This paper designed and developed a network fault diagnosis system based on PROFINET and B/S (Browser/
openaire +1 more source
Vacuum Circuit Breaker Metal-Clad Switchgear
IEEE Transactions on Industry Applications, 1976This paper presents a review of vacuum circuit breakers and metal-clad switchgear for 15 and 34.5 kV applications. It is concerned primarily with a description of the ratings, design features, and application considerations characteristic of vacuum circuit breakers.
openaire +1 more source
Post arc breakdown in vacuum circuit breakers
20th International Symposium on Discharges and Electrical Insulation in Vacuum, 2003The influence of contact out-gassing on late breakdowns has been studied. Results show that strongly delayed breakdowns can occur for conditions corresponding to those of the left hand side of the Paschen curve. Cold gas breakdown delay times are shown to depend directly and precisely on pressure. Delays of up to 100ms are possible.
S.W. Rowe, H. Schellekens
openaire +1 more source