منابع مشابه
Flexible Pulsed Dc- Source for Investigations of Hvdc Circuit Breaker Arc Resistance
The paper discusses the design of a flexible pulsed current source needed for experimental research of switching arcs in HVDC circuit breakers with passive resonance circuits. The source drives a current pulse from a pre-charged capacitor and forms it using an IGBT switch operated at 10kHz. The current source will be used to measure stationary and transient UIcharacteristics of switching arcs i...
متن کاملInvestigation of Circuit Breaker Dielectric Performance
The violent event of a short-circuit leads to short-term exposure of circuit breaker components to extremely high current, causing thermal degradation, vaporization and deformation of some components and the deposition of surface contaminants. After short-circuit, the leakage current carried by the breaker, when voltage is applied, increases dramatically but must remain below a certain threshol...
متن کاملONLINE CIRCUIT BREAKER MONITORING SYSTEM A Thesis
Online Circuit Breaker Monitoring System. (December 2007) Zarko Djekic, B.S., University of Novi Sad, Serbia Chair of Advisory Committee: Dr. Mladen Kezunovic Circuit breakers are used in a power system to break or make current flow through power system apparatus. Reliable operation of circuit breakers is very important to the well-being of the power system. Historically this is achieved by reg...
متن کاملAutomated Analysis of Circuit Breaker Operation
In this paper a new approach to the analysis of test results for circuit breakers is discussed. It is implemented through new software called Automated Circuit Breaker Monitoring system ACBM. The circuit breaker performance is evaluated based on the analysis of Digital Fault Recorder (DFR) recordings taken from circuit breaker control circuitry. This paper describes the testing procedure and us...
متن کاملAutomated Analysis of Circuit Breaker Operations
The automated circuit breaker diagnostic system described in this paper is an extension of the widely used portable circuit breaker testing device concept. These traditional testing devices can be connected to the circuit breaker’s control circuit to record analog and digital signals. The operator opens and closes the circuit breaker each time the test is performed and makes the recordings. The...
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ژورنال
عنوان ژورنال: High Voltage
سال: 2019
ISSN: 2397-7264,2397-7264
DOI: 10.1049/hve.2019.0003