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Sunday 18 November 2012

Electrical Power Substations


Outdoor Substations are used for all voltage levels from 52 to 765 kV. They are built outside cities, usually at points along the cross-country lines of bulk transmission systems.

They comprise switchgear like circuit breakers, disconnectors, instrument transformers, power transformers, surge arrestors and busbars.

The control and protection equipment is housed in central buildings or in small switching bay oriented containers in the switchyard
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