Results 241 to 250 of about 20,507 (308)

Design and Characterization of a Self-Oscillating Fluxgate-Based Current Sensor for DC Distribution System Applications. [PDF]

Sensors (Basel)
Chen W, Chen H, Xu H, Li L.
europepmc   +1 more source

A novel controllable capacitor commutation based superconducting hybrid direct current breaker. [PDF]

Sci Rep
Xu Y, Junaid M, Li M, Yang J, Chen Y, Alkahtani M.   +5 more
europepmc   +1 more source

Magnetic Sensor Array for Electric Arc Reconstruction in Circuit Breakers. [PDF]

Sensors (Basel)
D'Antona G, Ghezzi L, Prando S, Rigamonti F.   +3 more
europepmc   +1 more source

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High voltage vacuum circuit breakers

IEEE Transactions on Power Apparatus and Systems, 1975
A new line of high voltage vacuum power circuit breakers is being developed for 121 kV and above and will use the new vacuum interrupter module presented in a companion paper3. The first ratings in production will be 242 kV with interrupting capabilities of 40,000 amperes, followed by breakers rated 50,000 amperes; both of these will have continuous ...
R.B. Shores, V.E. Phillips
openaire   +1 more source

High-voltage oil circuit breakers

Electrical Engineering, 1950
ONLY a few years ago, 3,500,000 kva was the maximum standard rated interrupting capacity for high-voltage circuit breakers, and the interrupting-time ratings were mostly five and eight cycles. This article describes recent developments in interrupting devices that have made available standard circuit breakers for 5,000,000-kva interrupting capacity and
W. M. Leeds, R. E. Friedrich
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Timings of high voltage circuit-breaker

Electric Power Systems Research, 2008
The reliability of an electrical power system is influenced by the operation of circuit-breaker (CB). A good indicator of circuit-breaker condition is its switching time. Based on it some of the critical circuit-breaker irregularities can be detected and removed before they develop to a failure.
Bartosz Rusek, Gerd Balzer, Martin Holstein, Max-Steffen Claessens   +3 more
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Interrupters for high-voltage circuit breakers

Electrical Engineering, 1957
The demand for higher breaker voltages and interrupting ratings created by today's expanding energy requirements presents numerous design and test problems. A new line of high-power tubular multibreak-type interrupters has been developed, features of which include accessibility, simplicity of replacement, and a design that can be verified by part ...
A. W. Hill, R. E. Friedrich
openaire   +1 more source

Acoustic diagnosis of high voltage circuit-breakers

IEEE Transactions on Power Delivery, 1992
A noninvasive technique for assessing the condition of circuit breakers by considering the acoustic signals generated during nonenergized switching is described. Mechanical malfunction, wear, and other types of abnormal behavior can be detected as changes in this acoustic signature.
M. Runde, T. Aurud, L.E. Lundgaard, G.E. Ottesen, K. Faugstad   +4 more
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High-Voltage Circuit Breakers

Transactions of the American Institute of Electrical Engineers, 1923
The 150-kv. system operated for some years by the Southern California Edison Company has not made use of automatic operation of circuit breakers. The multiplication of generating stations and connections which accompanied the change to 220-kv. makes desirable the automatic sectionalizing of the line in cases of trouble and, therefore, requires circuit ...
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Circuit breakers go high voltage

IEEE Power and Energy Magazine, 2009
Over the last 50 years, high-voltage circuit breakers have become more reliable, more efficient, and more compact because the interrupting capability per break has been increased dramatically. These developments have not only produced major savings, but they have also had a massive impact on the layout of substations with respect to space requirements.
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