GE MOTOR MANAGER 2 - Page 45

GE Power Management
MM2 Motor Manager 2 4-11
4 SETPOINTS 4.3 S2 PROTECTION
4
Figure 4–3: NEMA COMPATIBLE TIME/OVERCURRENT CURVES
CLASS 10CLASS 10
CLASS 15CLASS 15
CLASS 20CLASS 20
CLASS 30CLASS 30
CURVE #CURVE #
0.1
0.5
1 2 3 4 5 6 7
8
9
10 20 50
100
1
10
100
1000
10000
100000
MM2/MM3 NEMA COMPATIBLE TIME/CURRENT
OVERLOAD CURVES
MULTIPLE OF PICKUP CURRENT (PER UNIT)
807903D4.CDR
TIME (SECONDS)
GE POWER MANAGEMENT