Overview - GE B90 Instruction Manual

5.5 GROUPED ELEMENTS
5.5GROUPED ELEMENTS
Each protection element can be assigned up to six different sets of settings according to setting group designations 1 to 6.
The performance of these elements is defined by the active setting group at a given time. Multiple setting groups allow the
user to conveniently change protection settings for different operating situations (for example, altered power system config-
uration, season of the year, etc.). The active setting group can be preset or selected via the
Control elements section later in this chapter). See also the Introduction to elements section at the beginning of this chap-
ter.

PATH: SETTINGS GROUPED ELEMENTS
 SETTING GROUP 1

5
Each of the six setting group menus is identical. Setting group 1 (the default active group) automatically becomes active if
no other group is active (see Section 5.6.3: Setting Groups on page 5–110 for further details).
5-84

SETTING GROUP 1(6)
 BUS DIFFERENTIAL

 BREAKER FAILURE
MESSAGE

 VOLTAGE ELEMENTS
MESSAGE

 CURRENT ELEMENTS
MESSAGE

 END FAULT PROTECTION
MESSAGE

B90 Low Impedance Bus Differential System

5.5.1 OVERVIEW

SETTING GROUPS
5.5.2 SETTING GROUP
See below.
See page 5-89.
See page 5-97.
See page 5-98.
See page 5-105.
5 SETTINGS
menu (see the
GE Multilin