5-218 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL
GROUPED ELEMENTS CHAPTER 5: SETTINGS
5
Figure 5-110: Ground TOC1 logic
5.7.5.3 Ground instantaneous overcurrent (ANSI 50G, IEC PIOC)
SETTINGS GROUPED ELEMENTS SETTING GROUP 1(6) GROUND CURRENT GROUND IOC1(12)
The ground instantaneous overcurrent element can be used as an instantaneous element with no intentional delay or as a
definite time element. The ground current input is the quantity measured by the ground input CT and is the fundamental
phasor magnitude.
GROUND IOC1
GROUND IOC1
FUNCTION: Disabled
Range: Disabled, Enabled
GROUND IOC1 SIGNAL
SOURCE: SRC 1
Range: SRC 1, SRC 2, SRC 3, SRC 4, SRC 5, SRC 6
GROUND IOC1
PICKUP: 1.000 pu
Range: 0.020 to 30.000 pu in steps of 0.001
GROUND IOC1 PICKUP
DELAY: 0.00 s
Range: 0.00 to 600.00 s in steps of 0.01
GROUND IOC1 RESET
DELAY: 0.00 s
Range: 0.00 to 600.00 s in steps of 0.01
GROUND IOC1 BLOCK:
Off
Range: FlexLogic operand
GROUND IOC1
TARGET: Self-reset
Range: Self-reset, Latched, Disabled
GROUND IOC1
EVENTS: Disabled
Range: Disabled, Enabled
These elements measure the current that is connected to the ground channel of a CT/VT module. The conversion
range of a standard channel is from 0.02 to 46 times the CT rating.
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