منابع مشابه
Reliability modeling and data analysis of vacuum circuit breaker subject to random shocks
The electrical substation components are often subject to degradation due to over-voltage or over-current, caused by a short circuit or a lightning. A particular interest is given to the circuit breaker, regarding the importance of its function and its dangerous failure. This component degrades gradually due to the use, and it is also subject to the shock process resulted from the stress of iso...
متن کاملA Model-Based Fault Detection Framework for Vacuum Circuit Breaker by Trip Coil Analysis
Vacuum 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 is addressed a modelbased fault detection framework for vacuum circuit breaker by trip coil analysis. At first, the electromagnetic m...
متن کاملOptimal Design of a Permanent Magnetic Actuator for Vacuum Circuit Breaker using FEM
This paper presents the characteristic analysis and the optimal design of a permanent magnetic actuator (PMA) for a vacuum circuit breaker (VCB) using a two-dimensional finite element analysis. The purpose of this research about a PMA is to minimize the breaking time and the volume of the permanent magnet within the limits of the holding force and maximum current in the coil. The conjugate grad...
متن کاملOvervoltage Transient Analysis of Vacuum Circuit Breaker Switched Arc Furnace Installation
Frequent Switching of arc furnace in steel company causes a great effect on the insulation of arc furnace transformer winding which in turn may causes a shutdown of production for long periods of time. Therefore, it is necessary to study and analyze the causes of these outages and design an adequate protective device. In this paper the transient overvoltage resulted from vacuum circuit breaker ...
متن کاملExtracting past-future vacuum correlations using circuit QED.
We propose a realistic circuit QED experiment to test the extraction of past-future vacuum entanglement to a pair of superconducting qubits. The qubit P interacts with the quantum field along an open transmission line for an interval T(on) and then, after a time-lapse T(off), the qubit F starts interacting for a time T(on) in a symmetric fashion. After that, past-future quantum correlations wil...
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ژورنال
عنوان ژورنال: IEEJ Transactions on Power and Energy
سال: 1996
ISSN: 0385-4213,1348-8147
DOI: 10.1541/ieejpes1990.116.12_1450