Setting: V>= V, IN>= A Time Delay = Sec, Aided 2 DEF Delay= ms Scheme Logic= Blocking. Note: Apply 3 Phase Voltage as per the below Table. For Phase under Test keep the current Angle -60 Degree. Inject one phase current to the phase under test and keep other two phases with minimum Current. ( > 0.1 In , to get no Dead Line condition which effect result ) Keep Channel in Service. Current Sensitivity Test Applied Voltage V Pick-up Current mA Drop off Current mA Indication R Y B IR= IR= 66.4 IY=0.2 IY=0.2 56.4 66.4 ∟0 ∟120 ∟240 IB=0.2 IB=0.2 IR=0.2 IR=0.2 66.4 IY= IY= 56.4 66.4 ∟0 ∟240 ∟120 IB=0.2 IB=0.2 IR=0.2 IR=0.2 66.4 66.4 IY=0.2 IY=0.2 56.4 ∟0 ∟240 ∟120 IB= IB= Trip Time Test Applied Voltage V Measured Trip Time Applied Current mA Indication (sec) R Y B
Setting: V>= V, IN>= A Time Delay = Sec, Aided 2 DEF Delay= ms Scheme Logic= Blocking. Note: Apply 3 Phase Voltage as per the below Table. For Phase under Test keep the current Angle -60 Degree. Inject one phase current to the phase under test and keep other two phases with minimum Current. ( > 0.1 In , to get no Dead Line condition which effect result ) Keep Channel in Service. Current Sensitivity Test Applied Voltage V Pick-up Current mA Drop off Current mA Indication R Y B 56.4 ∟0 66.4 ∟240 66.4 ∟120 IR= IY=0.2 IB=0.2 IR= IY=0.2 IB=0.2 66.4 ∟120 56.4 ∟0 66.4 ∟240 IR=0.2 IY= IB=0.2 IR=0.2 IY= IB=0.2 66.4 ∟240 66.4 ∟120 56.4 ∟0 IR=0.2 IY=0.2 IB= IR=0.2 IY=0.2 IB= Trip Time Test Applied Voltage V Applied Current mA Measured Trip Time (sec) Indication R Y B
p443_-_line_distance.docx