5-188 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUALGROUPED ELEMENTS CHAPTER 5: SETTINGS5Figure 5-96: Non-volatile latch operation table (N = 1 to 16) and logic5.7 Grouped elements5.7.1 OverviewEach protection element can be assigned up to six sets of settings with designations 1 to 6. The performance of theseelements is defined by the active setting group at a given time. Multiple setting groups allow the user to convenientlychange protection settings for different operating situations (for example, altered power system configuration or season ofthe year). The active setting group can be preset or selected in the SETTING GROUPS menu (see the Control Elements sectionlater in this chapter). See also the Introduction to Elements section at the beginning of this chapter.5.7.2 Setting group 1SETTINGS GROUPED ELEMENTS SETTING GROUP 1(6)Latch n type Latch nsetLatch nresetLatch nonLatch noffResetDominantON OFF ON OFFOFF OFF PreviousStatePreviousStateON ON OFF ONOFF ON OFF ONSetDominantON OFF ON OFFON ON ON OFFOFF OFF PreviousStatePreviousStateOFF ON OFF ON SETTING GROUP 1 PHASE CURRENTSee below NEUTRAL CURRENTSee page 5-204 GROUND CURRENTSee page 5-216 NEGATIVE SEQUENCE CURRENTSee page 5-219
