GE G60

GE Multilin G60 Generator Protection System 5-253
5 SETTINGS 5.6 GROUPED ELEMENTS
5
The field ground fault detector function logic is shown below.
Figure 5–135: FIELD GROUND FAULT DETECTOR FUNCTION LOGIC
c) FIELD CURRENT
PATH: SETTINGS  GROUPED ELEMENTS  SETTING GROUP 1(6)  FIELD GROUND PROTECTION  FIELD CURRENT
The following settings are available for the field current fault detector function.
• FIELD CURRENT ORIGIN: This setting selects the dcmA input to be used for the field current protection element. A
dcmA input can be selected from up to 24 possible inputs, depending on the number of installed transducer modules.
 FIELD
 CURRENT
FIELD CURRENT
FUNCTION: Disabled
Range: Disabled, Enabled
MESSAGE
FIELD CURRENT ORIGIN:
Off
Range: Off, dcmA 1, dcmA 2,..., dcmA 24, TRD1,
TRD2,..., TRD8
MESSAGE
FIELD OVER CURRENT
PICKUP: 0.80 pu
Range: 0.05 to 1.00 pu in steps of 0.01
MESSAGE
FIELD OVER CURRENT
DELAY: 1.00 s
Range: 0.00 to 600.00 s in steps of 0.01
MESSAGE
FIELD UNDER CURRENT
PICKUP: 0.20 pu
Range: 0.05 to 1.00 pu in steps of 0.01
MESSAGE
FIELD UNDER CURRENT
DELAY: 1.00 s
Range: 0.00 to 600.00 s in steps of 0.01
MESSAGE
FIELD CURRENT BLK:
Off
Range: FlexLogic operand
MESSAGE
FIELD CURRENT
TARGET: Self-reset
Range: Self-reset, Latched, Disabled
MESSAGE
FIELD CURRENT
EVENTS: Disabled
Range: Disabled, Enabled
GPM-F failure
SETTINGS
= Enabled
Function
= Off
Block
AND
From
injection
unit
TIMER
5 sec.
5 sec.
SELF-TEST MESSAGE
GPM-F FAILURE
SETTING
Stage 1 Pickup
RUN
Rg Pickup≤
SETTING
Stage 2 Pickup
RUN
Rg Pickup≤
SETTING
Ground UC Pickup
RUN
Ig_RMS Pickup≤
SETTING
Stage 1 Pickup Delay
T
PKP
0
SETTING
Stage 2 Pickup Delay
T
PKP
0
SETTING
Ground UC Delay
T
PKP
0
FLEXLOGIC OPERANDS
FIELD GND STG1 OP
FIELD GND STG1 PKP
FIELD GND STG1 DPO
FLEXLOGIC OPERANDS
FIELD GND STG2 OP
FIELD GND STG2 PKP
FIELD GND STG2 DPO
FLEXLOGIC OPERANDS
FIELD GND INJ UC OP
FIELD GND INJ UC PKP
FIELD GND INJ UC DPO
ACTUAL VALUES
Field Ground Resistance
Field Ground Current
Injected Voltage
Fault Location
Field Voltage
COMMAND TO GPM-F
Block 0.1 to 3.0 Hz Injection
830010A3.CDR