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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In that sense, it is important to pay close attention to overheating, which results from excessive system losses and cooling system inefficiency.

Iere, Electrical Insulation for Rotating Machines. Diagnostic tests Interpretation logic R. The method is applied to determine iede temperature when power is uprated to Showing of 39 extracted citations. Uniform stepgraded stepand ramped test methods. The mathematical model developed was based on an artificial intelligence technique, more specifically neural networks. Since the s, motor windings have encountered many changes in their design and manufacture. This last scenario was also useful to test extrapolation accuracy.

Uniform step, graded step, and ramped test methods.

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Understanding water treeing mechanisms in the development of diagnostic test methods. High – voltage DC tests for evaluating stator winding insulation: Until recent revisions, the basic procedures and standards in use were written over 25 years ago. On-line and off-line tests M. Examples of stator winding partial discharges due to inverter drives.

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Topics Discussed in This Paper. Scientific Research An Academic Publisher. Significance of defects found during high direct voltage ramp tests. The calculation 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.

BlanquezCarlos A.

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World Journal of Engineering and TechnologyVol. Skip to search form Skip to main content.

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Online technique for insulation assessment of induction motor stator windings under different load conditions Majid 95-977B. Showing of 7 references.

References Publications referenced by this paper. The most usual methodology is the finite element method, or linear regression. This paper has 48 citations. Detection of stator winding insulation failures: From This Paper Figures, tables, and topics from this paper.

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Citations Publications citing this paper. Power uprates pose a threat to electrical generators due to possible parasite effects that iefe develop potential failure sources with catastrophic consequences in most cases. Use ieee AC and DC hipot tests to assess stator winding insulation. In order to address this methodology, a calculation method was developed to determine temperature increases in the last stator package.

The end region of a stator is the most sensitive part to overheating.

At that point, the temperature value will be compared to with the values obtained using finite elements method and multivariate regression. Stone Published in IEEE Transactions on Industry Applications IEEE standards and test procedures are widely used by motor and generator vendors and iese to commission windings in new machines, as well as evaluate the condition of the winding insulation in operating machines.