GE M60 UR Series, Instruction Manual

Page: 287 / 662

GE Multilin M60 Motor Protection System 5-159
5 SETTINGS 5.6 GROUPED ELEMENTS
5
Figure 5–65: VOLTAGE DEPENDENT OVERLOAD CURVE PROTECTION AT 110% VOLTAGE
The following three figures illustrate the motor starting curves for the following abnormal conditions: line voltages below the
minimum, above 110%, and the situation for voltage loss.
Figure 5–66: VOLTAGE DEPENDENT OVERLOAD CURVE PROTECTION AT LESS THAN MINIMUM VOLTAGE
1.00
10.00
100.00
1000.00
10000.00
0 1 2 3 4 5 6 7 8
PER UNIT CURRENT
TIME
T
O
TR
IP
(S
EC
ON
D
S
)
833718A1.CDR
1.00
10.00
100.00
1000.00
10000.00
0 1 2 3 4 5 6 7 8
PER UNIT CURRENT
TIME
T
O
TR
IP
(S
EC
ON
D
S
)
833719A1.CDR