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Effective 10/2004
Page 6
I.L. 70C1036H05
Table 1.1d VOLTAGE PROTECTION functions for Digitrip 1150/1150i Trip Units
Trip Unit Type
Digitrip 1150
+
Digitrip 1150
i
+
Ordering Catalog Number
11PLSI, 11PLSIG, 11PLSIA
11PIEC, 11PIECEF
SYSTEM Frequency
50 or 60 Hz
50 or 60 Hz
TRIPS
RANGE
STEP
SIZE
TOLERANCE
UnderVoltage Trip
90 to 670 Volts
1 volt
+/- 7 volts
UnderVoltage Time
1 to 250 seconds
1 second
+2.5s, -0.5s or +2%, -2%
whichever is larger
OverVoltage Trip
180 to 720 Volts
1 volt
+/- 7 volts
OverVoltage Time
1 to 250 seconds
1 second
+2.5s, -0.5s or +2%, -2%
whichever is larger
UnderFrequency Trip
48 to 52 Hz (50 Hz)
58 to 62 Hz (60Hz)
0.1 Hz
+/- .05 Hz
UnderFrequency Time
0.20 to 5.0 seconds
0.02 seconds
+0.1s/-0s
OverFrequency Trip
48 to 52 Hz (50 Hz)
58 to 62 Hz (60Hz)
0.1 Hz
+/- .05 Hz
OverFrequency Time
0.20 to 5.0 seconds
0.02 seconds
+0.1s/-0s
Voltage Unbalance Trip
5% to 50%
1%
+/-3
Voltage Unbalance Time
1 to 250 seconds
1 second
+2.5s, -0.5s or +2%, -2%
whichever is larger
Reverse Power Trip
1 to 65000kW
1 kW
+/- 2% FS
Reverse Power Time
1 to 250 seconds
1 second
0, +2%
+3s whichever is larger
ALARMS
RANGE
STEP
SIZE
TOLERANCE
UnderVoltage Alarm
90 to 670 Volts
1 volt
+/- 7 volts
UnderVoltage AlarmTime
1 to 250 seconds
1 second
+2.5s, -0.5s or +2%, -2%
whichever is larger
OverVoltage Alarm
180 to 720 Volts
1 volt
+/- 7 volts
OverVoltage AlarmTime
1 to 250 seconds
1 second
+2.5s, -0.5s or +2%, -2%
whichever is larger
UnderFrequency Alarm
48 to 52 Hz (50 Hz)
58 to 62 Hz (60Hz)
0.1 Hz
+/- .05 Hz
UnderFrequency AlarmTime
0.20 to 5.0 seconds
0.02 seconds
+0.1s/-0s
OverFrequency Alarm
48 to 52 Hz (50 Hz)
58 to 62 Hz (60Hz)
0.1 Hz
+/- .05 Hz
OverFrequency AlarmTime
0.20 to 5.0 seconds
0.02 seconds
+0.1s/-0s
Voltage Unbalance Alarm
5% to 50%
1%
+/-3
Voltage Unbalance AlarmTime
1 to 250 seconds
1 second
+2.5s, -0.5s or +2%, -2%
whichever is larger
Phase Rotation Alarm
ABC, CBA, OFF
-
-