Online Broadband Insulation Spectroscopy of Induction Machines Using Signal Injection

• Published in: IEEE transactions on industry applications Vol. 53; no. 2; pp. 1054 - 1062
• Main Authors: Neti, Prabhakar, Grubic, Stefan
• Format: Journal Article
• Language: English
• Published: IEEE 01.03.2017
• Subjects: Capacitance; Current measurement; Failure analysis; Impedance; Insulation; machine windings; Mathematical model; motors; spectroscopy; Surges; Temperature measurement

The breakdown of the stator insulation is one of the main causes of failure in medium- and high-voltage ac machines. Even though there are several techniques available to detect the failure of the ground-wall insulation and the turn insulation, there are only few online techniques to detect the dete...