Breaker Failure - GE c60 Instruction Manual

CHAPTER 5: SETTINGS
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.
NOTE
This channel can be equipped with a standard or sensitive input. The conversion range of a sensitive channel is
from 0.002 to 4.6 times the CT rating.
NOTE
SETTING
GROUND IOC1
FUNCTION:
Enabled = 1
SETTING
GROUND IOC1
SOURCE:
IG
SETTING
GROUND IOC1
BLOCK:
Off = 0

5.7.6 Breaker failure

SETTINGS  GROUPED ELEMENTS  SETTING GROUP 1(6)  BREAKER FAILURE  BREAKER FAILURE 1(2)
 BREAKER FAILURE 1

C60 BREAKER PROTECTION SYSTEM – INSTRUCTION MANUAL
GROUND IOC1

TARGET: Self-reset
GROUND IOC1

EVENTS: Disabled
Figure 5-94: Ground IOC1 logic
SETTING
GROUND IOC1
PICKUP:
AND RUN
IG PICKUP
BF1 FUNCTION:

Disabled
BF1 MODE:

3-Pole
BF1 SOURCE:

SRC 1
BF1 USE AMP SUPV:

Yes
BF1 USE SEAL-IN:

Yes
BF1 3-POLE INITIATE:

Off
BF1 BLOCK:

Off
BF1 PH AMP SUPV

PICKUP: 1.050 pu
Range: Self-reset, Latched, Disabled
Range: Disabled, Enabled
FLEXLOGIC OPERANDS
GROUND IOC1 PKP
GROUND IOIC DPO
SETTINGS GROUND IOC1 OP
GROUND IOC1 PICKUP
DELAY:
GROUND IOC1 RESET
DELAY:
t
PKP
t
RST
Range: Disabled, Enabled
Range: 3-Pole, 1-Pole
Range: SRC 1, SRC 2, SRC 3, SRC 4
Range: Yes, No
Range: Yes, No
Range: FlexLogic operand
Range: FlexLogic operand
Range: 0.001 to 30.000 pu in steps of 0.001
GROUPED ELEMENTS
5
827037A5.VSD
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