ESI 48-4 : ISSUE 3 AMD 1被替代
DC RELAYS ASSOCIATED WITH A TRIPPING FUNCTION IN PROTECTION SYSTEMS
出版：Energy Networks Association (UK)
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基本信息
标准编号： ESI 48-4 : ISSUE 3 AMD 1
标准类别：Standard
出版单位：Energy Networks Association (UK)
标准页数：0
标准简介
Specifies the design, performance, testing requirements and application for dc auxiliary and input energising circuits of protection relays associated with measuring and tripping functions. It applies only to relays energised from dc supplies having nominal voltages of 30, 48 or 110V, and which may also be used for energising circuit breaker tripping or closing coils, or for other heavy current intermittent duty. Additional requirements are applicable to intertrip receive relays.
替代本标准的新标准
