Abstract
Many experiments have been conducted in this research work which is (i) connecting a zigzag transformer with an induction motor, (ii) connecting a zigzag transformer with multiple induction motors, and (iii) connecting multiple zigzag transformers with multiple induction motors. These experiments provide a thorough understanding of the sequence network connections under the single-phasing condition of a three-phase induction motor. Moreover, these experiments protect the three-phase induction motors from unbalancing voltage supply and allow the induction motor to start under unbalance voltage supply. Additionally, they keep the three-phase induction motor running even any one of the three phases disconnected from the power supply without creating excessive heat in the motor winding.
Highlights
Induction motor is widely used in industry to convert electrical energy into mechanical energy due to its reliability, affordability, and superior performance (Lyshevski, 2018)
Different experimental investigations have been conducted for various types of connecting the three-phase induction motor to a zigzag transformer in this research work
Operation of multiple induction motors connected to multiple zigzag transformers
Summary
Induction motor is widely used in industry to convert electrical energy into mechanical energy due to its reliability, affordability, and superior performance (Lyshevski, 2018). These motors can be employed in both low- and high-power applications. The induction motor must be monitored regularly to identify possible early-stage faults. By detecting these faults earlier, maintenance engineers can execute corrective actions. Some standard external faults of induction motor are over-loading, single phasing, unbalanced supply voltage, locked rotor, phase reversal, ground faults, and under/overvoltage (Choudhary et al, 2019)
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