Setpoint Group; Differential Element - GE Multilin 745 Instruction Manual

S4 Elements

Setpoint Group

! SETPOINT GROUP

Differential Element

! DIFFERENTIAL
GE Multilin
PATH: SETPOINTS !" S4 ELEMENTS
[!] ACTIVE SETPOINT
GROUP: Group 1
EDIT SETPOINT
MESSAGE
GROUP: Active Group
GROUP 2 ACTIVATE
MESSAGE
SIGNAL: Disabled
GROUP 3 ACTIVATE
MESSAGE
SIGNAL: Disabled
GROUP 4 ACTIVATE
MESSAGE
SIGNAL: Disabled
Each protection and monitoring element setpoint (programmed in
four copies, and these settings are organized in four setpoint groups. Only one
group of settings are active in the protection scheme at a time. The active group can
be selected using the
ACTIVE SETPOINT GROUP
setpoints in any group can be viewed or edited using the
setpoint.
• ACTIVE SETPOINT GROUP: Select the number of the
settings are to be active in the protection scheme. This selection will be
overridden if a higher number setpoint group is activated using logic inputs.
• EDIT SETPOINT GROUP: Select the number of the
settings are to be viewed and/or edited via the front panel keypad or any of the
communication ports. Selecting "Active Group" selects the currently active
setpoint group for editing.
• GROUP 2(4) ACTIVATE SIGNAL: Select any logic input which, when
asserted, will (remotely) select
selection will be overridden if a higher number setpoint group is activated using
the
ACTIVE SETPOINT GROUP
a) Main Menu
PATH: SETPOINTS !" S4 ELEMENTS
! PERCENT
[!]
! HARMONIC
MESSAGE
! ENERGIZATION
MESSAGE
! 5th HARM
MESSAGE
This section contains the settings to configure the percent differential element,
including all associated harmonic inhibit features. The 745 provides three
independent harmonic inhibit features:
inhibit scheme based on 2nd or 2nd + 5th harmonic which is 'in-circuit' at all times;
, which allows changing the characteristics of the inhibit scheme
ENERGIZATION INHIBIT
during energization to improve reliability; and
an inhibit scheme based on 5th harmonic only, allowing inhibiting the percent
differential during intentional overexcitation of the system.
http://www.GEindustrial.com/multilin
Transformer Management Relay
! SETPOINT GROUP
Range: Group 1, Group 2, Group 3,
Range: Group 1, Group 2, Group 3,
Range: Logic Input 1 to 16, Disabled
Range: Logic Input 1 to 16, Disabled
Range: Logic Input 1 to 16, Disabled
setpoint or using a logic input. The
SETPOINT GROUP 2(4)
setpoint or another logic input.
!" DIFFERENTIAL
[!]
See page 5–42.
DIFFERENTIAL
[!]
See page 5–44.
INHIBIT
[!]
See page 5–45.
INHIBIT
[!]
See page 5–48.
INHIBIT
HARMONIC INHIBIT
5TH HARM INHIBIT
745
Group 4
Group 4, Active Group
) has
S4 ELEMENTS
EDIT SETPOINT GROUP
whose
SETPOINT GROUP
whose
SETPOINT GROUP
to be the active group. This
, which implements an
, which implements
5–41