Seg XRW1-4, Manual

Page: 9 / 36

TB XRW1-4 04.01 E 9
3.2.5 Parameter settings
Setting parameters Unit Range
∆
/Y
input transformer connection Y = star
DELT = Delta
U1< Pick-up value for the 1
st
undervoltage step V 4 - 800
tU1< Tripping time for the 1
st
undervoltage step s 0.2 - 1500
tU1< back Reverse run of the 1
st
tripping time is active YES/NO
U2< Pick-up value for the 2
nd
undervoltage step V 4 - 800
tU2< Tripping time for the 2
nd
undervoltage step s 0.2 - 1500
tU2< back Reverse run of the 2
nd
tripping time is active YES/NO
U3< Pick-up value for the 3
rd
undervoltage step V 4 - 800
tU3< Tripping time for the 3
rd
undervoltage step s 0.04 - 300
tU3< back Reverse run of the 3
rd
tripping time is active YES/NO
U4< Pick-up value for the 4
th
undervoltage step V 4 - 800
tU4< Tripping time for the 4
th
undervoltage step s 0.04 - 300
tU4< back Reverse run of the 4
th
tripping time is active YES/NO
U1> Pick-up value for the 1
st
overvoltage step V 4 - 800
tU1> Tripping time for the 1
st
overvoltage step s 0.2 - 1500
tU1> back Reverse run of the 1
st
tripping time is active YES/NO
U2> Pick-up value for the 2
nd
overvoltage step V 4 - 800
tU2> Tripping time for the 2
nd
overvoltage step s 0.2 - 1500
tU2> back Reverse run of the 2
nd
tripping time is active YES/NO
U3> Pick-up value for the 3
rd
overvoltage step V 4 - 800
tU3> Tripping time for the 3
rd
overvoltage step s 0.04 - 300
tU3> back Reverse run of the 3
rd
tripping time is active YES/NO
U4> Pick-up value for the 4
th
overvoltage step V 4 - 800
tU4> Tripping time for the 4
th
overvoltage step s 0.04 - 300
tU4> back Reverse run of the 4
th
tripping time is active YES/NO
f
N
rated frequency Hz 50/60
T frequency measuring repetition in periods periods 2 - 99
f
1
pickup value for frequency element 1 Hz 30 - 70 or
40 - 80
t
f1
tripping delay for frequency element 1 s t
fmin.
-50
f
2
pickup value for frequency element 2 Hz 30 - 70 or
40 - 80
t
f2
tripping delay for frequency element 2 s t
fmin
-50
f
3
pickup value for frequency element 3 Hz 30 - 70 or
40 - 80
t
f3
tripping delay for frequency element 3 s t
fmin
-50
df pickup value for rate of frequency (dt/dt) in Hz/s 0.2 - 10
dt measuring repetition for df/dt periods 2 - 64
U
B
< voltage threshold value for frequency and df/dt element V 20 - 400
LED blinking after excitation NOFL/FLSH
RS Slave address of the serial interface 1 - 32
Table 3.2: Sequence of parameter setting