nader NDW3 Series Manual page 34

See the table below for the overload long-time delay protection action delay setting time and the corresponding multiple of
current time
Curve Fault
type Current C1 C2
1.5×Ir 15.00 30.00 60.00 120.00 240.00 360.00 480.00 600.00 720.00 840.00 960.00
2×Ir
8.44 16.88 33.75 67.50 135.00 202.0 270.00 337.50 405.00 472.50 540.00
I2t
6×Ir
0.94 1.88
7.2×Ir
0.65 1.30
1.5×Ir 8.00 12.80 19.20 32.00
2×Ir
3.33 5.33
EI (G)
6×Ir
0.29 0.46
7.2×Ir
0.20 0.31
1.5×Ir 6.22 9.96 14.90 24.90
2×Ir
2.95 4.72
EI (M)
6×Ir
0.28 0.45
7.2×Ir
0.19 0.31
Internal & confidential file
文件编号:NDT2920213
Function Alarm, tripping, regional interlocking, general, grounding interlocking, short circuit
DI setting interlocking
Input form
Function See the table below, "Parameter Settings of Switch Output (DO)"
setting
Execution Normally opened
DO
mode
Impulse
time
General
Load monitoring 2 Overload pre-alarm
Grounding/current Grounding/leakagi
leakage fault ng alarm
Overvoltage fault Voltage unbalance
Reverse power fault
interlocking
MCR fault
interlocking
C-phase required N-phase required
value fault value fault
Remote reset Temperature alarm
C3 C4 C5
3.75 7.50 15.00 22.50
2.60 5.21 10.42 15.63
48.00 64.00
8.00 13.33 20.00 26.67
0.69 1.14 1.71
0.47 0.79 1.18
37.30 49.80
7.06 11.79 17.67 23.59
0.68 1.13 1.69
0.47 0.78 1.17
Normally open
Normally closed
level level
N/A
Parameter Settings of Switch Output (DO)
Alarm Fault tripping
Overload fault
Current unbalance
fault
Underfrequency
fault fault
Regional Remote On
Ground Short circuit
interlocking
Required value out-
of-limit
—
Delay time (s)
C6 C7 C8 C9
30.00 37.50 45.00 52.50 60.00
20.83 26.04 31.25 36.46 41.67
80.00 108.0 144.00 224.00 320.00 480.00 640.00 800.00 960.00 1120.00
33.33 45.00 60.00 93.33 133.33 200.0 266.67 333.33 400.00 466.67
2.29 2.86 3.86 5.14
1.57 1.97 2.26 3.54
62.20 84.00 112.00 174.00 249.00 373.00 498.00 622.00 747.00 871.00
29.46 39.79 53.05 82.42 117.95 176.68 235.89 294.63 353.84 412.58
2.26 2.82 3.81 5.08
1.56 1.95 2.63 3.51
第 34 页 共 149 页
文件版本:17
Normally closed
Execution mode
1~360s
General
Load monitoring 2
Grounding/current
leakage fault
Overvoltage fault
Reverse power
fault
MCR fault
C-phase required
value fault
Remote reset
C10 C11 C12 C13
8.00 11.43 17.14 22.86
5.51 7.87 11.80 15.74
7.89 11.30 16.92 22.59
5.45 7.81 11.69 15.61
Normally opened
level
Alarm
Overload pre-alarm
Grounding/leakagin
g alarm
Voltage unbalance
fault
Regional
interlocking
Ground interlocking
N-phase required
value fault
Temperature alarm
C14 C15 C16
28.57 34.29 40.00
19.67 23.60 27.54
28.22 33.89 39.52
19.50 23.42 27.30