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3 zone impedance protection (Z(n)RW)
Operation =On
I
U
Z1RW-VTSZ
Z1RW-BLOCK
Operation =
NonDir/Rev/For
Timer t1=On
Z1RW-BLKTR
Z2RW-VTSZ
Z2RW-BLOCK
Z2RW-BLKTR
Z3RW-VTSZ
Z3RW-BLOCK
Z3RW-BLKTR
)LJXUH 6LPSOLILHG ORJLF GLDJUDP IRU LPSHGDQFH SURWHFWLRQ
The impedance zone 1 is activated by setting the parameter Operation=Forward, Re-
verse or NonDir and is blocked with the setting Operation=Off.
Zone 1 can be delayed by setting Function t1=On on the setting menu. For instanta-
neous function, set Function t1=On and t1=0,000 for the actual zone. All three zones
have the same logical structure.
Z<
Direction
check
≥1
t1
t
ZONE 1
ZONE 2
ZONE 3
&KDSWHU
/LQH LPSHGDQFH
Z1RW-NDST
Z1RW-START
Z1RW-TRIP
Z2RW-START
Z2RW-NDST
Z2RW-NDSTL1N
Z2RW-NDSTL2N
Z2RW-NDSTL1L2
Z2RW-TRIP
Z3RW-START
Z3RW-NDST
Z3RW-TRIP
en02000642.vsd
65
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