Instruction manual

KRB-5377
48
Long time delay trip, short time delay trip, instantaneous trip and pretrip alarm N-phase protection
Fig. 46 Characteristic curves of type AGR-21BR,31BR OCR (with R characteristic of I
4
t protection type)
Negative-phase sequence protection Ground fault trip
Fig. 47 Characteristic curves of type AGR-21BR,31BR OCR (with R characteristic of common protection type)