Neutral Overcurrent - GE TRANSFORMER MANAGEMENT RELAY 745 Instruction Manual

5.6 S4 ELEMENTS
a) MAIN MENU
PATH: SETPOINTS S4 ELEMENTS
NEUTRAL OC
[ENTER] for more
5
In the 745, "neutral" refers to residual current (3I
This section contains the settings to configure the neutral overcurrent elements. Included are neutral time overcurrents for
each winding, and two levels of neutral instantaneous overcurrent for each winding.
5-56
Courtesy of NationalSwitchgear.com
NEUTRAL OC
ð
W1 NTRL TIME OC
ENTER
[ENTER] for more
ESCAPE
W2 NTRL TIME OC
ESCAPE
[ENTER] for more
MESSAGE
W3 NTRL TIME OC
ESCAPE
[ENTER] for more
MESSAGE
W1 NTRL INST OC 1
ESCAPE
[ENTER] for more
MESSAGE
W2 NTRL INST OC 1
ESCAPE
[ENTER] for more
MESSAGE
W3 NTRL INST OC 1
ESCAPE
[ENTER] for more
MESSAGE
W1 NTRL INST OC 2
ESCAPE
[ENTER] for more
MESSAGE
W2 NTRL INST OC 2
ESCAPE
[ENTER] for more
MESSAGE
W3 NTRL INST OC 2
ESCAPE
[ENTER] for more
MESSAGE
), which is calculated internally as the vector sum of the three phases.
0
745 Transformer Management Relay

5.6.6 NEUTRAL OVERCURRENT

See page 5–57.
See page 5–57.
See page 5–57.
See page 5–58.
See page 5–58.
See page 5–58.
See page 5–58.
See page 5–58.
See page 5–58.
5 SETPOINTS
GE Multilin