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Survey of Insulation Systems in Electrical Machines
International Electric Machines and Drives Conference, 2019Insulating materials and insulation systems design have been gaining more attentions as more electrical machines tend to operate in harsher environments for various applications.
Rasul Hemmati, Fan Wu, A. El-Refaie
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Electrical Machines for Drives [PDF]
, 2009 This chapter contains sections titled: Introduction Motor Requirements for Drives Commutator Motors Induction Motors Synchronous Permanent Magnet Motors Switched or Trapezoidal PM Motors Synchronous Reluctance Motors PM Reluctance Motors Switched Reluctance Motors Wound Field Synchronous Motors
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2020
There are currently an enormous range of VSDs being applied to electrical machines and there are a number of specialised references available for considering VSD reliability, see Appendix C -Timeline, including Yang and Ran et al. (2010) and Chung et al. (2016).
Christopher J. Crabtree +2 more
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There are currently an enormous range of VSDs being applied to electrical machines and there are a number of specialised references available for considering VSD reliability, see Appendix C -Timeline, including Yang and Ran et al. (2010) and Chung et al. (2016).
Christopher J. Crabtree +2 more
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IEE Proceedings C Generation, Transmission and Distribution, 1986
Large hydro-electric generators are individually designed for the specific hydraulic and system conditions of a particular site. The paper reviews the various mechanical features of such a machine, in particular the bearings and how they are disposed relatively to the rotor, the stator frame core and windings with particular reference to the problems ...
F.J. Parker, E.N. Foster
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Large hydro-electric generators are individually designed for the specific hydraulic and system conditions of a particular site. The paper reviews the various mechanical features of such a machine, in particular the bearings and how they are disposed relatively to the rotor, the stator frame core and windings with particular reference to the problems ...
F.J. Parker, E.N. Foster
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The cooling of electrical machines
Journal of the Institution of Electrical Engineers, 1931This paper is intended to serve the dual purpose of recording the present-day attitude towards cooling electrical machines and of describing tests carried out to fill the gaps left by the hitherto published data.In a simple air-cooled machine the temperature-rise of the hot spot is built up in three stages' —θt = θg + θs + θmwhere θt = hot-spot ...
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Superconducting electrical machines
Physics Bulletin, 1979Interest in superconducting alternators has heightened in recent months with the award of a contract to Westinghouse by the research institute EPRI to build a 300 MVA prototype on a shared cost basis. Accordingly there was a good attendance at a meeting on the topic in Oxford on 19–20 April; but equally, it was tantalising that no one from Westinghouse
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Control Methods for Electrical Machines
2009The type of control system used for electrical machines depends on the use (nature of the load, operating states, etc.) to which the machine will be put. The precise type of use determines the control laws which apply. Mechanics are also very important because they affect performance. Another factor of essential importance in industrial applications is
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1974
Compared to other fabrication techniques, spark machining is a relatively unknown process. However, for certain applications it is the only method that can be used. Conversely, if other methods can achieve satisfactory results, then spark machining is probably not the best method.
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Compared to other fabrication techniques, spark machining is a relatively unknown process. However, for certain applications it is the only method that can be used. Conversely, if other methods can achieve satisfactory results, then spark machining is probably not the best method.
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Electrical Discharge Machining
1989Abstract This article discusses the use of a shaped electrode for electrical discharge machining (EDM). It describes the operational methodology of the EDM. Topography, metallurgical and chemical effects, and surface integrity of the EDM surface are reviewed.
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