GE M60 Instruction Manual page 417

CHAPTER 5: SETTINGS
— This setting defines the locked rotor current level at the rated motor voltage (I
VD STALL CURRENT @ 100% V
VD SAFE STALL TIME @ 100% V
current at rated motor voltage (t
VD ACCEL. INTERESECT @ 100% V
between the acceleration thermal limit at rated voltage and the programmed relay overload curve (I
typically determined from the motor acceleration curves. The current value at the breakdown torque for the 100% voltage
start is recommended for this setting.
The figure shows the voltage dependent overload curves.
M60 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
Figure 5-107: Typical motor acceleration characteristics
— This setting defines the maximum time the motor is allowed to withstand the locked rotor
).
3
— This setting defines the starting current level corresponding to the crossing point
GROUPED ELEMENTS
).
3
). This value can be
4
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5