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 .
|Published (Last):||17 November 2014|
|PDF File Size:||17.35 Mb|
|ePub File Size:||9.35 Mb|
|Price:||Free* [*Free Regsitration Required]|
Uniform step, graded step, and ramped test methods. Since the s, motor windings have encountered many changes in their design and manufacture.
High – voltage DC tests for evaluating stator winding insulation: Examples of stator winding partial discharges due to inverter drives. References Publications referenced by this paper.
The calculation of magnetic fields, the evaluation of eddy-current losses and the determination of loss-derived temperature increases, are challenging 59-1977 requiring the use of simulation methods.
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. Understanding water treeing mechanisms in the development of diagnostic test methods.
In order to address this methodology, a calculation method was developed idee determine temperature increases in the last stator package. Use of AC and DC hipot tests to assess stator winding insulation. From This Paper Figures, tables, and topics from this paper.
IEEE Std (Revision of IEEE Std ): IEEE Recommended Practice – Google Books
The mathematical model developed was based on an artificial intelligence technique, more specifically neural networks. Stone Published in IEEE Transactions on Industry Applications IEEE standards and isee 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.
Diagnostic tests Interpretation logic R.
95-197 Significance of defects found during high direct voltage ramp tests. World Journal of Engineering and TechnologyVol. The end region of a stator is the most sensitive part to overheating.
Online technique for insulation assessment of induction motor stator windings under different load conditions Majid MalekpourB. Topics Discussed in This Paper. Detection of stator winding insulation failures: On-line and off-line tests M. This last scenario 951-977 also useful to test extrapolation accuracy.
Army Engineer Manual Engineering and Design Hydroelectri
Citations Publications citing this paper. The most usual methodology is the finite element method, or linear regression. Until recent revisions, the basic procedures and standards in use were written over 25 years ago. Showing of 7 references.
The method is applied to determine core-end temperature when power is uprated to This paper has 48 citations.
Scientific Research An Academic Publisher.
In that sense, it is important to pay close attention to overheating, which results from excessive system losses and cooling system inefficiency. Uniform stepgraded stepand ramped test methods. Dhirani, Electrical Insulation for Rotating Machines. At that point, the temperature value will be compared to with the values obtained using finite elements method and multivariate regression. Skip to search form Skip to main content.