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IEVref:447-02-03ID:
Language:enStatus: Standard
Term: initial condition
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Definition: specified condition that a measuring relay or protection equipment leaves in order to complete its designated function

initial condition characteristic quantity for under relay operate value operate value characteristic quantity for over relay operate signal operate time operate operate condition disengage value disengage value disengage disengage condition disengage hysteresis disengage hysteresis disengage time

Figure 1 – Explanatory diagram for operate condition

characteristic quantity (for under... relay) characteristic quantity (for over... relay) initial condition start value start value start time start start conditionoutput signals

Figure 3 – Explanatory diagram for start condition (pick-up condition)


Publication date:2020-05
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