Скачать IEEE Spectrum Magazine - November 2008 (Volume 45 Issue 11) by IEEE Spectrum Magazine бесплатно
22 апреля 2009 | Автор: Admin | Рубрика: Скачать журналы бесплатно » Технические журналы | Комментариев: 0
IEEE Spectrum Magazine - November 2008 (Volume 45 Issue 11)
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Outdoor ac substations, either conventional or gas-insulated, are covered in this guide. Distribution, transmission, and generating plant substations are also included. With proper caution, the methods described herein are also applicable to indoor portions of such substations, or to sub-stations that are wholly indoors. No attempt is made to cover the grounding problems peculiar to dc substations. A quantitative analysis of the effects of lightning surges is also beyond the scope of this guide.