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):||24 March 2016|
|PDF File Size:||19.63 Mb|
|ePub File Size:||12.35 Mb|
|Price:||Free* [*Free Regsitration Required]|
The end region of a stator is the most sensitive part to overheating. 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.
Diagnostic tests Interpretation logic 95-1977. Citations Publications citing this paper. 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.
The method is applied to determine core-end temperature when power is uprated to Understanding water treeing mechanisms in the development of diagnostic test methods. On-line and off-line tests M.
The most usual methodology is the finite element method, or linear regression. Topics Discussed in This Paper. Dhirani, Electrical Insulation for Rotating Machines.
The mathematical model developed was based on an artificial intelligence technique, more specifically neural networks. Until recent revisions, the basic procedures and standards in use were written over 25 years ago. World Journal of Engineering and TechnologyVol. At that point, the temperature value will be compared to with the values obtained using finite elements method and multivariate regression. Scientific Research 951-977 Academic Publisher. Showing of 39 extracted citations.
Online technique for insulation assessment of induction motor stator windings under different load conditions Majid MalekpourB.
Detection of stator winding insulation failures: In that sense, it is important to pay close attention to overheating, which results from excessive system losses and cooling system inefficiency.
Significance of defects found during high direct voltage ramp tests. Use of AC and 95-1977 hipot tests to assess stator winding insulation. This last scenario was also useful to test extrapolation accuracy. In 951977 to address this methodology, a calculation method was developed to determine temperature increases in the last stator package. Showing of 7 references.
National Institute of Technology | Warangal
This paper has 48 citations. Examples of stator iees partial discharges due to inverter drives. High – voltage DC tests for evaluating stator winding insulation: Uniform stepgraded stepand ramped test methods. From This Paper Figures, tables, and topics from this paper.
References Publications referenced by this paper. Skip to search form Skip to main content. Since the s, motor windings have encountered many changes in their design and manufacture.