Detecting turn insulation failures in motor coils using ground current signals

Ayman H. El-Hag; Ahmed Gaouda; Shesha Jayaram; Saeed Ul-Haq

doi:10.1109/CATCON.2013.6737536

Detecting turn insulation failures in motor coils using ground current signals

Ayman H. El-Hag, Ahmed Gaouda, Shesha Jayaram, Saeed Ul-Haq

Department of Electrical and Communication Engineering

Research output: Contribution to conference › Paper › peer-review

Abstract

This paper proposes a procedure for monitoring the status of the turn-to-turn insulation subjected to steep front impulse voltage using the line-to-ground leakage current as a signature. Medium voltage motor coils with rated voltage of 4kV are tested using steep front impulse voltages with rise time of 100ns. It has been found that the signature of the ground current is unique for a specific coil and it is voltage independent. Moreover, it has been observed that the recorded turn-to-ground current is more sensitive to turn-to-turn insulation damage than the applied impulse voltage waveform. Hence, by analyzing the line-to-ground leakage current the turn-to-turn insulation failures can be assessed.

Original language	English
Pages	399-402
Number of pages	4
DOIs	https://doi.org/10.1109/CATCON.2013.6737536
Publication status	Published - Jan 1 2013
Event	2013 IEEE 1st International Conference on Condition Assessment Techniques in Electrical Systems, IEEE CATCON 2013 - Kolkata, India Duration: Dec 6 2013 → Dec 8 2013

Other

Other	2013 IEEE 1st International Conference on Condition Assessment Techniques in Electrical Systems, IEEE CATCON 2013
Country/Territory	India
City	Kolkata
Period	12/6/13 → 12/8/13

Keywords

steep front transients
turn-turn insulation

ASJC Scopus subject areas

Electrical and Electronic Engineering

Access to Document

10.1109/CATCON.2013.6737536

Cite this

Detecting turn insulation failures in motor coils using ground current signals. / El-Hag, Ayman H.; Gaouda, Ahmed; Jayaram, Shesha et al.
2013. 399-402 Paper presented at 2013 IEEE 1st International Conference on Condition Assessment Techniques in Electrical Systems, IEEE CATCON 2013, Kolkata, India.

Research output: Contribution to conference › Paper › peer-review

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abstract = "This paper proposes a procedure for monitoring the status of the turn-to-turn insulation subjected to steep front impulse voltage using the line-to-ground leakage current as a signature. Medium voltage motor coils with rated voltage of 4kV are tested using steep front impulse voltages with rise time of 100ns. It has been found that the signature of the ground current is unique for a specific coil and it is voltage independent. Moreover, it has been observed that the recorded turn-to-ground current is more sensitive to turn-to-turn insulation damage than the applied impulse voltage waveform. Hence, by analyzing the line-to-ground leakage current the turn-to-turn insulation failures can be assessed.",

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N2 - This paper proposes a procedure for monitoring the status of the turn-to-turn insulation subjected to steep front impulse voltage using the line-to-ground leakage current as a signature. Medium voltage motor coils with rated voltage of 4kV are tested using steep front impulse voltages with rise time of 100ns. It has been found that the signature of the ground current is unique for a specific coil and it is voltage independent. Moreover, it has been observed that the recorded turn-to-ground current is more sensitive to turn-to-turn insulation damage than the applied impulse voltage waveform. Hence, by analyzing the line-to-ground leakage current the turn-to-turn insulation failures can be assessed.

AB - This paper proposes a procedure for monitoring the status of the turn-to-turn insulation subjected to steep front impulse voltage using the line-to-ground leakage current as a signature. Medium voltage motor coils with rated voltage of 4kV are tested using steep front impulse voltages with rise time of 100ns. It has been found that the signature of the ground current is unique for a specific coil and it is voltage independent. Moreover, it has been observed that the recorded turn-to-ground current is more sensitive to turn-to-turn insulation damage than the applied impulse voltage waveform. Hence, by analyzing the line-to-ground leakage current the turn-to-turn insulation failures can be assessed.

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T2 - 2013 IEEE 1st International Conference on Condition Assessment Techniques in Electrical Systems, IEEE CATCON 2013

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Detecting turn insulation failures in motor coils using ground current signals

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Keywords

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