GE 469 Instruction Manual page 192

5–48
TIME TO TRIP AT
MESSAGE
4.75 x FLA: 16.2 s
TIME TO TRIP AT
MESSAGE
5.00 x FLA: 14.6 s
TIME TO TRIP AT
MESSAGE
5.50 x FLA: 12.0 s
TIME TO TRIP AT
MESSAGE
6.00 x FLA: 10.0 s
TIME TO TRIP AT
MESSAGE
6.50 x FLA: 8.5 s
TIME TO TRIP AT
MESSAGE
7.00 x FLA: 7.3 s
TIME TO TRIP AT
MESSAGE
7.50 x FLA: 6.3 s
TIME TO TRIP AT
MESSAGE
8.00 x FLA: 5.6 s
TIME TO TRIP AT
MESSAGE
10.0 x FLA: 5.6 s
TIME TO TRIP AT
MESSAGE
15.0 x FLA: 5.6 s
TIME TO TRIP AT
MESSAGE
20.0 x FLA: 5.6 s
MINIMUM ALLOWABLE
MESSAGE
LINE VOLTAGE: 80%
STALL CURRENT @ MIN
MESSAGE
Vline: 4.80 x FLA
SAFE STALL TIME @
MESSAGE
MIN Vline: 20.0 s
ACCEL. INTERSECT @
MESSAGE
MIN Vline: 3.80 x FLA
STALL CURRENT @ 100%
MESSAGE
Vline: 6.00 x FLA
SAFE STALL TIME @
MESSAGE
100% Vline: 10.0 s
ACCEL. INTERSECT @
MESSAGE
100% Vline: 5.00 x FLA
If the motor is called upon to drive a high inertia load, it is quite possible and acceptable for
the acceleration time to exceed the safe stall time (keeping in mind that a locked rotor
condition is different than an acceleration condition). In this instance, each distinct portion
of the thermal limit curve must be known and protection must be coordinated against that
curve. The relay protecting the motor must be able to distinguish between a locked rotor
condition, an accelerating condition, and a running condition. The Voltage Dependent
CHAPTER 5: SETTINGS
Range: 0.5 to 99999.9 s in steps of 0.1
Range: 0.5 to 99999.9 s in steps of 0.1
Range: 0.5 to 99999.9 s in steps of 0.1
Range: 0.5 to 99999.9 s in steps of 0.1
Range: 0.5 to 99999.9 s in steps of 0.1
Range: 0.5 to 99999.9 s in steps of 0.1
Range: 0.5 to 99999.9 s in steps of 0.1
Range: 0.5 to 99999.9 s in steps of 0.1
Range: 0.5 to 99999.9 s in steps of 0.1
Range: 0.5 to 99999.9 s in steps of 0.1
Range: 0.5 to 99999.9 s in steps of 0.1
Range: 70 to 95% in steps of 1
Range: 2.00 to 15.00 x FLA in steps of
0.01
Range: 0.5 to 999.9 s in steps of 0.1
Range: 2.00 to
VLINE
Range: 2.00 to 15.00 x FLA in steps of
0.01
Range: 0.5 to 999.9 s in steps of 0.1
Range: 2.00 to
VLINE
469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL
STALL CURRENT @ MIN
– 0.01 in steps of 0.01
STALL CURRENT @ MIN
– 0.01 in steps of 0.01