5-138 B30 Bus Differential System GE Multilin
5.6 GROUPED ELEMENTS 5 SETTINGS
5
5.6GROUPED ELEMENTS 5.6.1 OVERVIEW
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
SETTING GROUPS menu (see the
Control Elements section later in this chapter). See also the Introduction to Elements section at the beginning of this chap-
ter.
5.6.2 SETTING GROUP
PATH: SETTINGS GROUPED ELEMENTS SETTING GROUP 1(6)
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 5.7.3: Setting Groups on page 5–172 for details).
SETTING GROUP 1
BUS DIFFERENTIAL
See page 5-139.
MESSAGE
PHASE CURRENT
See page 5-143.
MESSAGE
NEUTRAL CURRENT
See page 5-152.
MESSAGE
GROUND CURRENT
See page 5-154.
MESSAGE
BREAKER FAILURE
See page 5-157.
MESSAGE
VOLTAGE ELEMENTS
See page 5-165.