Seg HighTECH Line MRN3-3, Руководство пользователя, Страница: 43 / 50

TD_MRN3-3_08.06_GB 43
Protection parameter
(continuation)
Function Parameter Setting range Step Tolerance
Function of the
voltage steps U< (Under voltage function)/
U> (Over voltage function)
Voltage stages
U1 – U3 U1
U2
U3 Un = 100 V 1...200 V (EXIT)
Un = 230 V 1…460 V (EXIT)
Un = 400 V 4...800 V (EXIT)
Un = 690 V 4...800 V (EXIT) 1 V
1 V
2 V
2 V
±
1% from setting value
or 0.3% of U
N
tU1 (U1+t>)
tU2 (U2+t>)
tU3 (U3+t>)
0.04...300s (EXIT) 0.02 (0.04...1.00)
0.05 (1.00...2.00)
0.1 (2.00...5.00)
0.2 (5.00...10.0)
0.5 (10.0...20.0)
1 (20.0...50.0)
2 (50.0...100)
5 (100.....200)
10 (200.....290)
±
1% or 30ms
Frequency
measuring repeti-
tion T 2...99 (periods) 1
Frequency ele-
ment 1 - 3 f
1
– f
3
30...49.99; EXIT;
50.01...70 Hz
1
40...59.99; EXIT;
60.01...80 Hz
2
0.01 (30.0...48.0)
0.1 (48.0...52.0)
0.01 (52.0...70.0)
0.01 (40.0...58.0)
0.1 (58.0...62.0)
0.01 (62.0...80.0)
0.04 Hz
±
1% or
±
20 ms
(f
1
+t> - f
3
+t>) t
f,min
3
...290 s; EXIT 0.02 (0.06 1.00)
0.05 (1.00...2.00)
0.1 (2.00...5.00)
0.2 (5.00...10.0)
0.5 (10.0...20.0)
1.0 (20.0...50.0)
2.0 (50.0...100)
5.0 (100....200)
10.0 (200....290)
df/dt-Step
df
0,2...10 Hz/s (EXIT) 0.1 (0.2...1.0)
0.2 (1.0...5.0)
0.5 (5.0...10.0)
0.1 Hz/s
df/dt-Measuring
repetition dt 2 64 periods 1
±
2 periods
Vector surge
tripping 1/3 1Ph/3Ph
∆Θ ∆Θ
2°...22° (EXIT) 1°
±
1°
Voltage
threshold for
frequency meas-
uring U
B
< U
N
= 100 V: 5...100 V
U
N
= 230 V: 12...230 V
U
N
= 400 V: 20...400 V
U
N
= 690 V: 20...400 V
1 V
1 V
2 V
2 V
±
1% from setting value
or 0.3% of U
N
Table 7.1: Setting ranges and steps
1)
At 50 Hz rated frequency
2)
At 60 Hz rated frequency
3)
t
f,min
min. time delay; t
f,min
= (T+1) x 20 ms (see chapter 5.4.8)
4)
only Modbus