FUNCTION CHARACTERISTICS
257
NVA100X-D - Manual - 02 - 2016
blk4-F50-51.ai
Time diagram of internal (Block4) and external (Block2) selective block concerning phase overcurrent element blocking of the example
Time diagram of internal (Block4) and external (Block2) selective block concerning residual overcurrent element blocking of the example
Start I>> (P2 relay)
Start IPD>> (P2 relay)
Trip IPD>>
(P2 relay)
Trip IPD>>
(P1 relay)
Trip I>>
(P2 relay)
Start I>> (P1 relay)
Start IPD>> (P1 relay)
BLK4OUT (IPD>> internal block output of P2 relay)
BLK4OUT (IPD>> internal block output of P1 relay)
BLK4IN I>> (I>> internal block input of P2 relay)
BLK4IN I>> (I>> internal block input of P1 relay)
t
PD>>
t
FI-Iph
t
Trip I>>
(P1 relay)
BLK2OUT-Iph/IE (P2 relay)
t
F-Iph/IE
BLK2IN-Iph (P1 relay)
t
B-Iph
Start IE>> (P2 relay)
Start IED>> (P2 relay)
Trip IED>>
(P2 relay)
Trip IED>>
(P1 relay)
Trip IE>>
(P2 relay)
Start IE>> (P1 relay)
Start IED>> (P1 relay)
BLK4OUT (IED>> internal block output of P2 relay)
BLK4OUT (IED>> internal block output of P1 relay)
BLK4IN IE>> (IE>> internal block input of P2 relay)
BLK4IN IE>> (IE>> internal block input of P1 relay)
t
ED>>
t
FI-IE
t
Trip IE>>
(P1 relay)
BLK2OUT-Iph/IE (P2 relay)
t
F-Iph/IE
BLK2IN-IE (P1 relay)
t
B-IE