Overview; Setting Group 1; Grouped Elements - GE C70 Instruction Manual

GROUPED ELEMENTS

Latch n Latch n
type set
Reset ON
Dominant
OFF
ON
OFF
Set ON
Dominant
ON
OFF
OFF
5.7 Grouped elements

5.7.1 Overview

Each protection element can be assigned up to six sets of settings with 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 configuration or season of
5
the year). The active setting group can be preset or selected in the
later in this chapter). See also the Introduction to Elements section at the beginning of this chapter.

5.7.2 Setting group 1

SETTINGS  GROUPED ELEMENTS  SETTING GROUP 1(6)
 SETTING GROUP 1

Each of the six setting group menus is identical. Setting group 1 (the default active group) is active automatically when no
other group is active.
If the device incorrectly switches to group 1 after power cycling, upgrade the firmware to version 7.31 or later to correct
this issue.
5-156
Figure 5-74: Non-volatile latch operation table (N = 1 to 16) and logic
Latch n Latch n Latch n
reset on off
OFF ON OFF
OFF Previous Previous
State State
ON OFF ON
ON OFF ON
OFF ON OFF
ON ON OFF
OFF Previous Previous
State State
ON OFF ON
 PHASE CURRENT


 NEUTRAL CURRENT


 GROUND CURRENT


 NEGATIVE SEQUENCE

 CURRENT
 BREAKER FAILURE


 VOLTAGE ELEMENTS


C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL
menu (see the Control Elements section
SETTING GROUPS
See below
See page 5-171
See page 5-183
See page 5-185
See page 5-191
See page 5-200
CHAPTER 5: SETTINGS