GE F35 User Manual

5-246 F35 MULTIPLE FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
GROUPED ELEMENTS CHAPTER 5: SETTINGS
5
GROUND TOC1 BLOCK — Assertion of the operand assigned to this setting blocks operation of the ground time overcurrent
element.
GROUND TOC1 EVENTS — This setting enables and disables the logging of ground time overcurrent events in the sequence
of events recorder.
Figure 5-130: Ground TOC1 logic
5.7.6.3 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.
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.
This channel can be also equipped with a sensitive input. The conversion range of a sensitive channel is from 0.002
to 4.6 times the CT rating.
 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

GE F35 Specifications

General

Frequency	50/60 Hz
Device Function	Protection Relay
Communication Protocols	DNP3
Type	Digital Protection Relay
Current Rating	5 A
Protection Functions	Overcurrent