Rotor winding inter‑turn short‑circuit fault detection in wound rotor induction motors using Wing Technique

Ujwala Vikas Dongare; Bhimrao Sitaram Umre; Makarand Sudhakar Ballal

Rotor winding inter‑turn short‑circuit fault detection in wound rotor induction motors using Wing Technique

Ujwala Vikas Dongare

Bhimrao Sitaram Umre

Makarand Sudhakar Ballal

Vol. 22, No. 4, pp. 614-628, Apr. 2022

10.1007/s43236-022-00382-5

Area of travel of wing

Inter-turn short circuit (ITSC)

Loci of currents

Travel of wing

Wound rotor induction motor (WRIM)

Abstract

The high probability of a rotor winding failure in a three-phase wound rotor induction motor (WRIM) due to the complicated structure of the rotor necessitates developing efficient techniques for detecting rotor winding faults in their evolving stages. FFT-based motor current signature analysis (MCSA) is extensively used to detect the electric failures of rotors. However, it is complemented by implementing alternative techniques to prevent the failure indicated by the MCSA. Rotor currentbased fault detection schemes have been scarcely investigated and implemented in industry. However, this experimental study investigates the rotor winding inter-turn short-circuit (ITSC) faults in a WRIM based on the loci of the symmetrical components of the three-phase rotor currents £ (ir1–ir2) that form a ‘Wing Shape.’ Hence, the technique is called the ‘Wing Technique.’ The proposed fault-sensitive and noninvasive approach investigated the effects of unbalanced stator voltages, constructional imbalances, and instrumentation errors on the measurement of rotor currents. It contributes to diagnosing the motor loading and to monitoring the insulation condition of the rotor windings even under lower fault levels. Experimental results presented for a 7.5 hp, 415 V, four-pole WRIM validate the competency of the proposed technique.

Statistics

Show / Hide Statistics

Cumulative Counts from September 30th, 2019
Multiple requests among the same browser session are counted as one view. If you mouse over a chart, the values of data points will be shown.

Cite this article

[IEEE Style]

U. V. Dongare, B. S. Umre, M. S. Ballal, "Rotor winding inter‑turn short‑circuit fault detection in wound rotor induction motors using Wing Technique," Journal of Power Electronics, vol. 22, no. 4, pp. 614-628, 2022. DOI: 10.1007/s43236-022-00382-5.

[ACM Style]

Ujwala Vikas Dongare, Bhimrao Sitaram Umre, and Makarand Sudhakar Ballal. 2022. Rotor winding inter‑turn short‑circuit fault detection in wound rotor induction motors using Wing Technique. Journal of Power Electronics, 22, 4, (2022), 614-628. DOI: 10.1007/s43236-022-00382-5.