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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Scientific Research An Academic Publisher. The calculation of magnetic fields, the evaluation of eddy-current losses and ieee determination of loss-derived temperature increases, are challenging problems requiring the use of simulation methods. Online technique for insulation assessment of induction motor stator windings under different load conditions Majid MalekpourB. The method is applied to determine core-end temperature when power is uprated to On-line and off-line tests M.

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Understanding water treeing mechanisms in the development of diagnostic test methods. The end region of a stator is the most sensitive part to overheating.

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References Publications referenced by this paper. Uniform stepgraded stepand ramped test methods.

By clicking accept or continuing to use the site, you agree to the terms outlined in our Privacy PolicyTerms of Serviceand Dataset License. The mathematical model developed was based on an artificial intelligence technique, more specifically neural networks.

High – voltage DC tests for evaluating stator winding insulation: Showing of 39 extracted citations. Until recent revisions, the basic procedures and standards in use were written over 25 years ago.

World Journal of Engineering and TechnologyIeed. Use of AC and DC hipot tests to assess stator winding insulation.

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

In that sense, it is important ieee pay close attention to overheating, which results from excessive system losses and cooling system inefficiency. BlanquezCarlos A. From This Paper Figures, tables, and topics from this paper.

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. Examples of stator winding partial discharges due to inverter drives. Citations Publications citing this paper. Diagnostic tests Interpretation logic R. The most ieer methodology is the finite element method, or linear regression.

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Showing of ieew references. Skip to search form Skip to main content. Topics Discussed in This Paper. This paper has 48 citations.

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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. This last scenario was also useful to test extrapolation accuracy. Dhirani, Electrical Insulation for Rotating Machines. Stone Published in IEEE Transactions on Industry Applications IEEE standards and test iees 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.

Since the s, motor windings have encountered many changes in their design and manufacture. Significance of defects found during high direct voltage ramp tests.