Negative Sequence Current - GE F35 Instruction Manual

Multiple feeder protection system
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GROUPED ELEMENTS
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 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.

5.7.7 Negative sequence current

5
5.7.7.1 Menu
SETTINGS  GROUPED ELEMENTS  SETTING GROUP 1(6)  NEGATIVE SEQUENCE CURRENT
 NEGATIVE SEQUENCE
 CURRENT
For information on the negative sequence time overcurrent curves, see the Inverse Time Overcurrent Curves section
earlier.
5.7.7.2 Negative sequence time overcurrent (ANSI 51Q, IEC PTOC)
SETTINGS  GROUPED ELEMENTS  SETTING GROUP 1(6)  NEGATIVE SEQUENCE CURRENT  NEG SEQ TOC1
 NEG SEQ TOC1
5-188
Figure 5-93: Ground IOC1 logic
 NEG SEQ TOC1
 NEG SEQ TOC2
 NEG SEQ IOC1
 NEG SEQ IOC2
NEG SEQ TOC1
FUNCTION: Disabled
NEG SEQ TOC1 SIGNAL
SOURCE: SRC 1
NEG SEQ TOC1
PICKUP: 1.000 pu
NEG SEQ TOC1
CURVE: IEEE Mod Inv
NEG SEQ TOC1
TD MULTIPLIER: 1.00
F35 MULTIPLE FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 5: SETTINGS
See below
See page 5-189
Range: Disabled, Enabled
Range: SRC 1, SRC 2, SRC 3, SRC 4, SRC 5, SRC 6
Range: 0.020 to 30.000 pu in steps of 0.001
Range: see Overcurrent Curve Types table
Range: 0.00 to 600.00 in steps of 0.01

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