Compressors operating in refrigeration systems, typically with built-in induction motors, represent an important energy demand. The applicability of standard methods for efficiency determination motors is limited this context by the constructive characteristics these such as shared compressor frame and inaccessibility shaft. main contributions paper are to provide overview alternative testing s...

Motors are the higher energy-conversion devices that consume around 40% of global electrical generated energy. Induction motors most popular motor type due to their reliability, robustness, and low cost. Therefore, both condition monitoring fault diagnosis induction faults have motivated considerable research efforts. In this paper, a comprehensive review recent techniques proposed in literatur...

Condition monitoring is an important issue in the maintenance of electrical machines. In the last years several methods for fault diagnosis of the squirrel-cage induction motors were cited in the literature. Among these methods the Motor Current Signature Analysis (MCSA) is considered the most effective non-invasive fault detection method, because it can easily detect all the common electrical ...