GE Feeder Management Relay 750 User Manual

5-42 750/760 Feeder Management Relay GE Multilin
5.6 S5 PROTECTION 5 SETPOINTS
5
Figure 5–10: PHASE DIRECTIONAL LOGIC
5.6.3 NEUTRAL CURRENT
a) MAIN MENU
PATH: SETPOINTS ÖØ S5 PROTECTION ÖØ NEUTRAL CURRENT
Four neutral overcurrent protection elements are provided. Two time overcurrent elements and two instantaneous overcur-
rent elements. They all monitor the calculated neutral current (3Io = Ia + Ib + Ic) which has DC offset and harmonic compo-
nents removed. Neutral overcurrent elements can be controlled by the neutral directional element allowing operation for
faults in the permitted direction only. Also, the elements can be blocked individually or as a group by logic inputs.
 NEUTRAL CURRENT
 [ENTER] for more
 NEUTRAL TIME OC 1
 [ENTER] for more
See below
 NEUTRAL TIME OC 2
 [ENTER] for more
 NEUTRAL INST OC 1
 [ENTER] for more
See page 5–44.
 NEUTRAL INST OC 2
 [ENTER] for more
 NEUTRAL DIRECTION
 [ENTER] for more
See page 5–45.
ENTER
ESCAPE
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Courtesy of NationalSwitchgear.com

GE Feeder Management Relay 750 Specifications

General

Brand	GE
Model	Feeder Management Relay 750
Category	Protection Device
Language	English