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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Showing of 39 extracted citations. On-line and off-line tests M. Skip to search form Skip to main content.

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The calculation of magnetic fields, the evaluation of eddy-current losses and the determination of loss-derived temperature iefe, are challenging problems requiring the use ifee simulation methods. The method is applied to determine core-end temperature when power is uprated to 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 as evaluate the condition of the winding insulation in operating machines.

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

Topics Discussed in This Paper. BlanquezCarlos A. Scientific Research An Academic Publisher. Uniform step, graded step, and ramped test methods. The most usual 95-197 is the finite element method, or linear regression.

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This paper has 48 citations. Examples of stator winding partial discharges due to inverter drives. Online technique for insulation assessment of induction motor stator windings under different load conditions Majid MalekpourB. Significance of defects found during high direct voltage ramp tests.

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At that point, the temperature value will be compared to with the values obtained using finite elements method and multivariate regression. From This Paper Figures, tables, and topics from this paper. Use of AC and DC hipot tests to assess stator winding insulation. Citations Publications citing this paper.

Diagnostic tests Interpretation logic R. Uniform stepgraded stepand ramped test methods. In that sense, it is important to pay close attention to overheating, which results from excessive system losses and cooling system inefficiency. By clicking accept or continuing to use the site, you agree to the terms outlined in our Privacy PolicyTerms iree Serviceand Dataset License.

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The end region of a stator is the most sensitive part to overheating. High – voltage DC tests for evaluating stator winding insulation: Showing of 7 references. The mathematical model developed was based on an artificial intelligence technique, more specifically neural networks. World Ueee of Engineering and TechnologyVol. Dhirani, Electrical Insulation for Rotating Machines.

Until recent revisions, the basic procedures and standards in use were written over 25 years ago. Since the s, motor windings have encountered many changes in their design and manufacture. References Publications referenced by this paper. Detection of stator winding insulation failures: 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.

Understanding water treeing mechanisms in the development of diagnostic test methods. This last ueee was also useful to test extrapolation accuracy.