CHAPTER 5: SETTINGS GROUPED ELEMENTSD60 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL 5-2535GROUND TOC1 RESET — The “Instantaneous” reset method is intended for applications with other relays, such as most staticrelays, which set the energy capacity directly to zero when the current falls below the reset threshold. The “Timed” resetmethod can be used where the relay must coordinate with electromechanical relays.GROUND TOC1 BLOCK — Assertion of the operand assigned to this setting blocks operation of the ground time overcurrentelement.GROUND TOC1 EVENTS — This setting enables and disables the logging of ground time overcurrent events in the sequenceof events recorder.Figure 5-140: Ground TOC1 logic5.7.10.3 Ground instantaneous overcurrent (ANSI 50G, IEC PIOC)SETTINGS GROUPED ELEMENTS SETTING GROUP 1(6) GROUND CURRENT GROUND IOC1(6)These elements measure the current that is connected to the ground channel of a CT/VT module. The conversionrange of a standard channel is from 0.02 to 46 times the CT rating.This channel can be also equipped with a sensitive input. The conversion range of a sensitive channel is from 0.002to 4.6 times the CT rating. GROUND IOC1 GROUND IOC1FUNCTION: DisabledRange: Disabled, Enabled GROUND IOC1 SIGNALSOURCE: SRC 1Range: SRC 1, SRC 2, SRC 3, SRC 4 GROUND IOC1PICKUP: 1.000 puRange: 0.020 to 30.000 pu in steps of 0.001 GROUND IOC1 PICKUPDELAY: 0.00 sRange: 0.00 to 600.00 s in steps of 0.01 GROUND IOC1 RESETDELAY: 0.00 sRange: 0.00 to 600.00 s in steps of 0.01 GROUND IOC1 BLOCK:OffRange: FlexLogic operand GROUND IOC1TARGET: Self-resetRange: Self-reset, Latched, Disabled GROUND IOC1EVENTS: DisabledRange: Disabled, Enabled
