Control Elements; Overview; Setting Groups - GE T35 Instruction Manual

Transformer management relay
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5 SETTINGS

5.6CONTROL ELEMENTS

Control elements are generally used for control rather than protection. See the Introduction to Elements section at the
beginning of this chapter for further information.
!"
PATH: SETTINGS
CONTROL ELEMENTS

# SETTING GROUPS

#
MESSAGE
MESSAGE
MESSAGE
MESSAGE
The Setting Groups menu controls the activation/deactivation of up to six possible groups of settings in the
settings menu. The faceplate 'Settings In Use' LEDs indicate which active group (with a non-flashing energized
MENTS
LED) is in service.
The
setting prevents the active setting group from changing when the FlexLogic™ parameter is set to
SETTING GROUPS BLK
"On". This can be useful in applications where it is undesirable to change the settings under certain conditions, such as the
breaker being open.
Each
setting selects a FlexLogic™ operand which, when set, will make the particular setting group
GROUP n ACTIVATE ON
active for use by any grouped element. A priority scheme ensures that only one group is active at a given time – the high-
est-numbered group which is activated by its
groups. There is no "activate on" setting for Group 1 (the default active group), because Group 1 automatically becomes
active if no other group is active.
The relay can be set up via a FlexLogic™ equation to receive requests to activate or de-activate a particular non-default
settings group. The following FlexLogic™ equation (see the figure below) illustrates requests via remote communications
(e.g.
) or from a local contact input (e.g. H7a) to initiate the use of a particular settings group, and requests
VIRTUAL INPUT 1
from several overcurrent pickup measuring elements to inhibit the use of the particular settings group. The assigned
operand is used to control the "On" state of a particular settings group.
TUAL OUTPUT 1
Figure 5–47: EXAMPLE FLEXLOGIC™ CONTROL OF A SETTINGS GROUP
GE Multilin
!
SETTINGS GROUPS
SETTING GROUPS
FUNCTION: Disabled
SETTING GROUPS BLK:
Off
GROUP 2 ACTIVATE ON:
Off
GROUP 6 ACTIVATE ON:
Off
SETTING GROUP
EVENTS: Disabled
GROUP n ACTIVATE ON
T35 Transformer Management Relay
5.6 CONTROL ELEMENTS
5.6.2 SETTING GROUPS
Range: Disabled, Enabled
Range: FlexLogic™ operand
Range: FlexLogic™ operand
Range: FlexLogic™ operand
Range: Disabled, Enabled
parameter takes priority over the lower-numbered

5.6.1 OVERVIEW

GROUPED ELE-
5
VIR-
5-93

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