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
標準編號： ESI 48-4 : ISSUE 3 AMD 1
標準類別：Standard
出版單位：Energy Networks Association (UK)
標準頁數：0
標準簡介
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.
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