Advanced metalclad switchgear equipment

The authors explain how continuously increasing demands are imposed on medium voltage switchgear. Both SF/sub 6/ and modern air insulated switchgear meet these demands. A new development in the category of air-insulated switchgear is introduced here, which exhibit interesting features in the case of a cubicle as well as for the newly developed vacuum circuit breaker. A description of an integrated power system control and protection system with promising characteristics shows that a substation can be described as completed only when it includes a suitable control and monitoring system.<
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