GE F650 Instruction Manual page 222

5 SETTINGS
5.4.8.6 AUXILIARY UNDERVOLTAGE ELEMENT (27X)
This is an Auxiliary undervoltage element for general use that uses as its input magnitude the voltage measured by the 4
VT, terminals A11-A12 (when VX is selected as Auxiliary Voltage in General Settings).
Table 5–69: 27X ELEMENT SETTINGS
SETPOINT > PROTECTION ELEMENTS > VOLTAGE ELEMENTS > AUXILIARY UV >
AUXILIARY UV 1> AUXILIARY UV 2 > AUXILIARY UV 3
setting Description
Function permission
Pickup Level
Curve shape
Time Dial
Snapshot Event generation
The snapshot event setting enables or disables the snapshot event generation for this element.
5.4.9.1 FORWARD POWER ELEMENT (32FP)
The 32FP element produces a trip when exported power exceeds the setting value. Monitored power is active power,
calculated by the three phase voltages and currents, and it is considered to be exported, positive active power, the one
given in the direction of the line protected by the relay; in this situation, the angle between secondary voltage and current is
lower than 90º, according to the relay wiring diagram.
Table 5–70: 2FP ELEMENT SETTINGS
SETPOINT > PROTECTION ELEMENTS > POWER > FORWARD POWER
FORWARD POWER 1> FORWARD POWER 2 > FORWARD POWER 3
SETTING DESCRIPTION
Function permission
Block from off-line
Pickup level for stage 1
Trip time for stage 1
Pickup level for stage 2
Trip time for stage 2
Snapshot Event generation
The snapshot event setting enables or disables the snapshot event generation for this element.
The F650 includes three 32FP elements. Each elements incorporates two stages, the first stage, less critical, is intended to
produce an alarm, the second stage is used for trip. Both levels are set in primary values, for instance: if in general
settings we set CT_RATIO to a value of 100, and the same value for PT_RATIO, the base power will be: 100 x 100 = 10000
W
GEK-106310AB
Name Default Value
Function DISABLED
Pickup Level 10
Curve DEFINITE TIME
Delay 10.00
Snapshot Events ENABLED
RESTRAINING
- P
0
Figure 5–16: FORWARD POWER CHARACTERISTIC
NAME DEFAULT
VALUE
Function DISABLED
Blk Time After Close 0.00
Stage 1 Tap 10.00
Stage 1 Time 60.00
Stage 2 Tap 20.00
Stage 2 Time 60.00
Snapshot Events ENABLED
F650 Digital Bay Controller
5.4 PROTECTION ELEMENTS
Step Range
N/A [DISABLED – ENABLED]
1 V [3 : 300]
N/A [DEFINITE TIME – INVERSE TIME]
0.01 s [0.00 : 900.00]
N/A [DISABLED – ENABLED]
OPERATION
P +
STEP RANGE
N/A [DISABLED – ENABLED]
0.01 s [0.00 : 900.00]
0.01MW [0.00 : 10000.00]
0.01 s [0.00 : 900.00]
0.01MW [0.00 : 10000.00]
0.01 s [0.00 : 900.00]
N/A [DISABLED – ENABLED]
th
5.4.9 POWER
5
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