IEEE 95-1977 PDF

IEEE Std ™). IEEE Recommended Practice for. Insulation Testing of AC Electric. Machinery ( V and Above). With High Direct. IEEE Std 95 () IEEE Recommended Practice for Insulation Testing of Large AC Rotating Machinery with High Direct Voltage. (This foreword is not a part of IEEE Std , Recommended Practice for Insulation In the Insulation Subcommittee of the IEEE Rotating Machinery .

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Examples of stator winding partial discharges due to inverter drives. Showing of 7 references.

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By clicking accept or continuing to use the site, you agree to the terms outlined in our Privacy PolicyTerms of Serviceand Dataset License. Uniform step, graded step, and ramped test methods.

Stone Published in IEEE Transactions on Industry Applications IEEE standards and test procedures are widely used by motor and generator vendors and users to commission windings in new machines, as well iees evaluate the condition of the winding insulation in operating machines.

Skip to search form Skip to main content. This paper has 48 citations. High – voltage DC tests for evaluating stator winding iree On-line and off-line tests M.

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BlanquezCarlos A. Power uprates pose a threat to electrical generators due to possible parasite effects that can develop potential failure sources with catastrophic consequences in most cases.

At that point, the temperature value will be compared to with the values obtained using finite elements method and multivariate regression. In that sense, it is important to pay close attention to overheating, which results from excessive system losses and cooling system inefficiency. Citations Publications citing this paper. The end region of a stator is the most sensitive part to overheating.

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Significance of defects found during high direct voltage ramp tests. The 95-1977 of magnetic fields, the evaluation of eddy-current losses and the determination of loss-derived temperature increases, are challenging problems requiring the use of simulation methods.

Scientific Research An Academic Publisher. Since the s, motor windings have encountered many changes in their design and manufacture. Use of AC and DC hipot tests to assess stator winding insulation.

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Online technique for insulation assessment of induction motor stator windings under different load conditions Majid MalekpourB. Until recent revisions, iewe basic procedures and standards in use were written over 25 years ago. From This Paper Figures, tables, and topics from this paper. Diagnostic tests Interpretation logic R. Understanding water treeing mechanisms ifee the development of diagnostic test methods.

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In order to address this methodology, a calculation method was developed to determine temperature increases in the last stator package.

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Dhirani, Electrical Insulation for Rotating Machines. The most usual methodology is the finite element method, or linear regression. The method is applied to determine core-end temperature when power is uprated to Uniform stepgraded stepand ramped test methods.

This last scenario was also useful to test extrapolation accuracy. Topics Discussed in This Paper. World Journal of Engineering and TechnologyVol. Detection of stator winding insulation failures: Showing of 39 extracted citations. The mathematical model developed was based on an artificial intelligence technique, more specifically neural networks. References Publications referenced by this paper.