GE D30 Instruction Manual page 318

5.6 GROUPED ELEMENTS
b) NEUTRAL TIME OVERCURRENT (ANSI 51N, IEC PTOC)

PATH: SETTINGS GROUPED ELEMENTS
 NEUTRAL TOC1

5
The neutral time overcurrent element can provide a desired time-delay operating characteristic versus the applied current
or be used as a simple definite time element. The neutral current input value is a quantity calculated as 3Io from the phase
currents and may be programmed as fundamental phasor magnitude or total waveform RMS magnitude as required by the
application.
5-182
 NEUTRAL IOC4
MESSAGE

 NEUTRAL
MESSAGE
 DIRECTIONAL OC1
 NEUTRAL
MESSAGE
 DIRECTIONAL OC2

SETTING GROUP 1(6)
NEUTRAL TOC1
FUNCTION: Disabled
NEUTRAL TOC1 SIGNAL
MESSAGE
SOURCE: SRC 1
NEUTRAL TOC1
MESSAGE
INPUT: Phasor
NEUTRAL TOC1
MESSAGE
PICKUP:
NEUTRAL TOC1
MESSAGE
CURVE: IEEE Mod Inv
NEUTRAL TOC1
MESSAGE
TD MULTIPLIER:
NEUTRAL TOC1
MESSAGE
RESET: Instantaneous
NEUTRAL TOC1 BLOCK:
MESSAGE
Off
NEUTRAL TOC1
MESSAGE
TARGET: Self-reset
NEUTRAL TOC1
MESSAGE
EVENTS: Disabled
D30 Line Distance Protection System
See page 5–183.
See page 5–184.
See page 5–184.

NEUTRAL CURRENT
Range: Disabled, Enabled
Range: SRC 1, SRC 2
Range: Phasor, RMS
Range: 0.000 to 30.000 pu in steps of 0.001
1.000 pu
Range: See OVERCURRENT CURVE TYPES table
Range: 0.00 to 600.00 in steps of 0.01
1.00
Range: Instantaneous, Timed
Range: FlexLogic operand
Range: Self-reset, Latched, Disabled
Range: Disabled, Enabled
5 SETTINGS

NEUTRAL TOC1(2)
GE Multilin