GE D60 Instruction Manual page 318

SYSTEM SETUP
With the HCT feature enabled, the operating time reduces to 30 ms for pickup multiples exceeding eight times pickup.
5
Configuring a composite curve with an increase in operating time at increased pickup multiples is not allowed. If
this is attempted, the EnerVista software generates an error message and discards the proposed changes.
5.5.6.5 Standard recloser curves
The following graphs display standard recloser curves available for the D60.
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Figure 5-64: Composite recloser curve with HCT disabled
Figure 5-65: Composite recloser curve with HCT enabled
D60 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 5: SETTINGS