Diagnosis methods for stator winding faults in three-phase squirrel-cage induction motors

2013 ◽  
Vol 24 (6) ◽  
pp. 891-912 ◽  
Author(s):  
Mansour Ojaghi ◽  
Mahdi Sabouri ◽  
Jawad Faiz
Keyword(s):  
Induction Motors ◽  
Stator Winding ◽  
Squirrel Cage ◽  
Three Phase

scholarly journals Modelling of Stator Coil–To–Ground Faults in Induction Motor

2021 ◽  
Vol 19 ◽  
pp. 396-401
Author(s):  
Stanislav Kocman ◽  
◽  
Pavel Pecínka
Keyword(s):  
Induction Motors ◽  
Stator Winding ◽  
Simple Construction ◽  
Squirrel Cage ◽  
Three Phase ◽  
Simulation Results ◽  
Ground Faults ◽  
Electrical Motors ◽  
Very High ◽  
Actual Point

Three–phase squirrel cage induction motors are the most widespread types of electrical motors which can be found in both industrial and tertiary applications. There are some reasons why they are so often used, such as simple construction, nearly maintenance-free, advantageous price and the possibility to feed them directly from the AC network. Even if their reliability is very high, some unexpected breakdowns can occur during their operation. In this paper, coil–to–ground faults of motor stator winding have been taken into consideration. These failures have been modelled in several points of one stator phase using COMSOL software. As seen from simulation results these failures have a significant impact on current distribution in stator phases causing changes in rotor currents, motor inner torque, speed, etc., depending strongly on the actual point of the failure.

scholarly journals Faults diagnosis in stator windings of high speed solid rotor induction motors using fuzzy neural network

2021 ◽  
Vol 12 (1) ◽  
pp. 597
Author(s):  
Ahmed Thamer Radhi ◽  
Wael Hussein Zayer
Keyword(s):  
Neural Network ◽  
Equivalent Circuit ◽  
High Speed ◽  
Fuzzy Neural Network ◽  
Induction Motors ◽  
Stator Winding ◽  
Three Phase ◽  
Fuzzy Neural ◽  
Diagnosis Method ◽  
Faults Diagnosis

The paper deals with faults diagnosis method proposed to detect the inter-turn and turn to earth short circuit in stator winding of three-phase high-speed solid rotor induction motors. This method based on negative sequence current of motor and fuzzy neural network algorithm. On the basis of analysis of 2-D electromagnet field in the solid rotor the rotor impedance has been derived to develop the solid rotor induction motor equivalent circuit. The motor equivalent circuit is simulated by MATLAB software to study and record the data for training and testing the proposed diagnosis method. The numerical results of proposed approach are evaluated using simulation of a three-phase high-speed solid-rotor induction motor of two-pole, 140 Hz. The results of simulation shows that the proposed diagnosis method is fast and efficient for detecting inter-turn and turn to earth faults in stator winding of high-speed solid-rotor induction motors with different faults conditions

Facilitation for Load Based Energy Savings in Three–phase Squirrel Cage Induction Motors

2006 ◽  
Vol 103 (6) ◽  
pp. 37-64
Author(s):  
B. Gopalakrishnan ◽  
S. Chaudhari ◽  
P. Famouri ◽  
R. W. Plummer
Keyword(s):  
Energy Savings ◽  
Induction Motors ◽  
Squirrel Cage ◽  
Three Phase
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