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Insulation co-ordination of UHVDC transmission lines
2011 4th International Conference on Electric Utility Deregulation and Restructuring and Power Technologies (DRPT), 2011The external insulation coordination is one of the key technologies in the UHVDC power transmission projects and deserves further studies. External insulation mainly contains two parts, the insulation coordination of insulator and coordination of air gaps in transmission.
Su Fei +3 more
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The co-ordination of electrical equipment with basic insulation levels
Electrical Engineering, 1940BASIC insulation levels have been defined, and a list of proposed values has been determined by national committees charged with this responsibility. The purpose of this paper is to discuss some of the principles useful in selecting electrical equipment conforming to the requirements of that basic insulation level necessary to assure satisfactory ...
J. H. Foote, J. R. North
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Insulation co-ordination for low-voltage equipment
Proceedings., Second International Conference on Properties and Applications of Dielectric Materials, 2003For several years, insulation coordination for low-voltage equipment has been an important concern of several international committees. The reports 664 and 664 A of the International Electrical Commission (IEC) provided the basis for thorough investigations. In cooperation between the USA and Germany a large field exposure of electrical insulations has
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Insulation co-ordination procedure for 420 kV gas insulated lines (GIL)
11th International Symposium on High-Voltage Engineering (ISH 99), 1999After stating the reasons leading to EDF's interest in 420 kV GIL and the technical and economic imperatives to be considered, the principles adopted for the insulation co-ordination of 420 kV GIL up to a few tens of kilometers long are described. All the insulation coordination approach is based on the global failure rate requested for GIL taking into
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Insulation Coordination for the Future
IEEE Electrical Insulation Magazine, 1986Present dimensioning rules for equipment vary widely from oountry to country. JEC Publications 664 and 664A present a new approach to dimensioning, and equipment built to these new rules has been operated for a number of years.
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Co-ordination of Insulation and Spacing or Transmission Line Conductors
Transactions of the American Institute of Electrical Engineers, 1946A SURVEY of practice on existing transmission systems shows, for the same operating voltage, wide variations in the insulation used. Also, wide variations occur in the spacing between conductors and from them to grounded members of the supporting structure.
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Insulation co-ordination for AC transmission and distribution systems
2001This chapter has introduced the important concept of insulation coordination of high voltage systems. The reader should be aware that increasing environmental and aesthetic concerns regarding the utilisation of overhead electrical power transmission lines have resulted in critical evaluation of underground alternatives and, in particular, at ...
T. Irwin, H. M. Ryan
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