Contents
Section 1: Introduction ............................................................................................................................................. 7
1.2 External Resistors ................................................................................................................................... 7
1.3 Front Cover ............................................................................................................................................. 7
Section 2: Hardware Description............................................................................................................................ 15
2.1 General ................................................................................................................................................. 15
2.2 Case...................................................................................................................................................... 15
2.3 Front Cover ........................................................................................................................................... 16
2.4 Power Supply Unit (PSU)...................................................................................................................... 17
2.5 Operator Interface/ Fascia .................................................................................................................... 18
2.6 Current Inputs ....................................................................................................................................... 21
2.7 Voltage Inputs ....................................................................................................................................... 21
2.8 Binary Inputs ......................................................................................................................................... 21
2.10 Virtual Input/Outputs ............................................................................................................................. 23
2.11 Self Monitoring ...................................................................................................................................... 24
2.11.1
Section 3: Protection Functions ............................................................................................................................. 26
3.1.1
3.1.2
3.1.3
3.1.4
3.2.1
3.2.2
3.2.3
3.3.1
3.3.2
3.3.3
3.4.1
3.4.2
3.4.3
4.1.1
Overview ................................................................................................................................. 52
4.1.2
Auto Reclose sequences ........................................................................................................ 53
4.1.3
Autoreclose Prot'n Menu......................................................................................................... 54
4.1.4
Autoreclose Config Menu........................................................................................................ 54
4.1.5
P/F Shots sub-menu ............................................................................................................... 56
4.1.6
E/F Shots sub-menu ............................................................................................................... 56
4.1.7
SEF Shots sub-menu .............................................................................................................. 56
7SR11 & 7SR12 Description Of Operation