REF 54_ Product Guide - ABB Oy Distribution Automation - #29

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Text version of the page
Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG Operation accuracy Start time Reset time Reset ratio Retardation time Operate time accuracy at DT mode Accuracy class index E at IDMT mode, typically Note! The values below apply when f/fn = 0.95...1.05 ±35 ms Injected voltages _1,U1 U2_2 (47-1, 47-2) Start value U2> Start value U1 Operate time U2> Operate time U1 Operation mode Dir. selection 0.01...1.00 x Un 0.01...1.20 x Un 0.80...1.60 x Un 0.04...60.00 s 0.04...60.00 s 0.04...60.00 s Not in use; U1 & U1>; U1; U2> & U1>; U1; U2>; U1<; U1> Forward; Reverse; Input ROT_DIR 29

pageCatalog pdf di En 2012-05-21-23