NDLI: Detection and Classification of Stator Turn Faults and High-Resistance Electrical Connections for Induction Machines

Content Provider	IEEE Xplore Digital Library
Author	Jangho Yun Kwanghwan Lee Kwang-Woon Lee Sang Bin Lee Ji-Yoon Yoo
Copyright Year	1972
Abstract	The goal of stator-winding turn-fault (TF) detection is to detect the fault at an early stage and shut down the machine immediately to prevent catastrophic motor failure due to the large fault current. A number of TF detection techniques have been proposed; however, there is currently no method available for distinguishing TFs from high-resistance (R) connections (HRCs), which also result in three-phase system asymmetry. It is important to distinguish the two faults, since an HRC does not necessarily require immediate motor shutdown. In this paper, new sensorless online monitoring techniques for detecting and classifying stator TFs and high-R electrical connections in induction machines based on the zero-sequence voltage or negative-sequence current measurements are proposed. An experimental study on a 10-hp induction motor performed under simulated TFs and high-R circuit conditions verifies that the two faults can be reliably detected and classified. The proposed technique helps improve the reliability, efficiency, and safety of the motor system and industrial plant and also allows maintenance to be performed in a more efficient manner, since the course of action can be determined based on the type and severity of the fault.
Sponsorship	IEEE Industry Applications Society
Starting Page	666
Ending Page	675
Page Count	10
File Size	1425805
File Format	PDF
ISSN	00939994
Volume Number	45
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-03-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electrical fault detection Stators Induction machines Circuit faults Fault currents Condition monitoring Voltage Current measurement Induction motors Circuit simulation turn fault (TF) AC electric machines condition monitoring diagnostics electrical-distribution system high-resistance (R) connection (HRC) induction machine interturn insulation failure symmetrical components
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Electrical and Electronic Engineering

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