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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High – voltage DC tests for evaluating stator winding insulation: At that point, the temperature value will be compared to with the values obtained using finite elements method and multivariate regression.

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The ieeee is applied to determine core-end temperature when power is uprated to BlanquezCarlos A. Skip to search form Skip to main content. 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.

Use of AC and DC hipot tests to assess stator winding insulation. The iede region of a stator is the most sensitive part to overheating.

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Citations Publications citing this paper.

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On-line and off-line tests M. Understanding water treeing mechanisms in the development of diagnostic test methods. Topics Discussed in This Paper. The mathematical model developed was based on an artificial intelligence technique, more specifically neural networks. The most usual methodology is the finite element method, or linear regression.

Scientific Research An Academic Publisher. World Journal of Engineering and TechnologyVol. Dhirani, Electrical Insulation for Rotating Machines. In order to address this methodology, a calculation method was developed to determine temperature increases in the last stator package. Diagnostic tests Interpretation logic R. Online technique for insulation assessment of induction motor stator windings under different load conditions Majid Malekpour iefe, B.

Uniform stepgraded stepand ramped test methods. Showing of 7 references. This paper has 48 citations.

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References Publications referenced by this paper. Until recent revisions, the basic procedures and standards in use were written over 25 years ago. This last scenario was also useful to test extrapolation accuracy. In that sense, it is important to pay close attention to overheating, which results from excessive system losses and cooling system inefficiency. Since the s, motor windings have encountered many changes in their design and manufacture.

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From This Paper Figures, tables, and topics from this paper. Detection of stator winding insulation failures: 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 as evaluate the condition of the winding insulation in operating machines.

Significance of defects found during high direct voltage ramp tests. Examples of stator winding partial discharges due to inverter drives. Showing of 39 extracted citations. 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.