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In-service inspection of sodium fast reactors (SFR) requires the development of non-destructive techniques adapted to the harsh conditions of the environment (opaque and hot) and the complexity of the examination (large and littered reactor block). Ultrasonic techniques are seen as suitable candidates for the inspection of SFRs and two approaches are being followed: inside inspection where transducers...
Thermal protection is one of the most important aspects in an electric motor protection system. A dc signal injection-based stator winding temperature estimation technique has been proposed for soft-starter-connected electric motors by the authors. As a continuation of the previous work, this paper proposes a compensation approach for power supply unbalance, motor internal unbalance, and line resistance...
A breakdown of the electrical insulation system causes catastrophic failure of the electrical machine and brings large process downtime losses. To determine the conditions of the stator insulation system of motor drive systems, various testing and monitoring methods have been developed. This paper presents an in-depth literature review of more than 20 existing methods, including the most common methods...
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