GE 469

5–42 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL
CHAPTER 5: SETTINGS
Note
Above 8.0 x Pickup, the trip time for 8.0 is used. This prevents the overload curve from
acting as an instantaneous element.
The standard overload curves equation is:
(EQ 5.2)
20.00 1.39 2.78 4.16 5.55 6.94 8.33 9.71 11.10 12.49 13.88 15.27 16.65 18.04 19.43 20.82
Table 5–1: 469 Standard Overload Curve Multipliers
PICKUP
(× FLA)
STANDARD CURVE MULTIPLIERS
× 1 × 2 × 3 × 4 × 5 × 6 × 7 × 8 × 9 × 10 × 11 × 12 × 13 × 14 × 15
Time to Trip
Curve_Multiplier 2.2116623×
0.02530337 Pickup 1–()
2
0.05054758 Pickup 1–()×+×
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