DIAGNOSIS OF BEARING THERMAL ANOMALIES IN AN ELECTRICAL MACHINE

PURPOSE: A diagnosis of bearing thermal anomalies in an electrical machine is provided to evaluate a trend of a bearing metal temperature to supply an early detection of a bearing malfunction. CONSTITUTION: A diagnosis of bearing thermal anomalies comprises a shaft(14) misalignment identification sy...

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Bibliographische Detailangaben
Hauptverfasser:	NILAJKAR VASUDEV SHANKAR, PADINHARU DILEEP KUMAR KANA, BANDARU VINODH KUMAR
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TESTING TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR
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Beschreibung
Zusammenfassung:	PURPOSE: A diagnosis of bearing thermal anomalies in an electrical machine is provided to evaluate a trend of a bearing metal temperature to supply an early detection of a bearing malfunction. CONSTITUTION: A diagnosis of bearing thermal anomalies comprises a shaft(14) misalignment identification system. The shaft misalignment identification system comprises first BMT(Bearing Metal Temperature) sensors(26a,26b), second BMT sensors(28a,28b), and an input system and misalignment identification system. A bearing metal temperature decoding value is obtained form the second BMT sensors. The input system obtains operation data including a temperature of a lubricating oil inlet, a speed, and power. The misalignment identification system responds to one sensor between BMT sensors reporting a temperature increase and the other BMT sensor reporting a temperature decrease, thereby generating misalignment warning.