GE 469 Instruction Manual page 179

CHAPTER 5: SETTINGS
469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL
400
HIGH
300
INERTIA
RUNNING OVERLOAD
MOTOR
200
100
80
60
40
20
10
8
6
4
E,F, AND G ARE THE
SAFE STALL THERMAL LIMIT
TIMES AT 100%, 90%, AND
2
80%VOLTAGE, REPECTIVELY
1
0 100 200
FIGURE 5–5: Typical Time-Current and Thermal Limit Curves
(ANSI/IEEE C37.96)
A,B,AND C ARE THE
ACCELERATION THERMAL LIMIT
CURVES AT 100%, 90%, AND
80%VOLTAGE, REPECTIVELY
C
B
A
G
F
300 400 500 600
E
% CURRENT
806827A1.CDR
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