GE D90 Plus - Page 8

viii D90
PLUS
LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
TABLE OF CONTENTS
Data logger channel configuration ..................................................................................................558
Metered values .......................................................................................................... 560
Phase current metering .........................................................................................................................564
Ground current metering ......................................................................................................................566
Phase voltage metering.........................................................................................................................566
Auxiliary voltage metering....................................................................................................................567
Power metering .........................................................................................................................................568
Energy metering........................................................................................................................................569
Frequency metering ................................................................................................................................570
Tracking frequency ..................................................................................................................................570
Clearing metered values........................................................................................................................571
Observing current and voltage phasors ............................................................... 571
Using shared operands in metering ...................................................................... 573
Shared metering operands ..................................................................................................................574
Customizing the metering logic operands....................................................................................575
Metering logic operands........................................................................................................................576
Metering FlexAnalog parameters........................................................................... 577
12 LOCAL INTERFACE Local interface overview.......................................................................................... 581
Annunciator panel..................................................................................................... 582
Annunciator operation ...........................................................................................................................582
Annunciator configuration ...................................................................................................................583
Mimic diagram editor ............................................................................................... 588
Dynamic symbols......................................................................................................................................589
Static symbols ............................................................................................................................................590
Metering blocks..........................................................................................................................................591
Text blocks....................................................................................................................................................593
View modes .................................................................................................................................................593
Pre-configured mimic diagrams........................................................................................................594
Metering summary editor........................................................................................ 598
User-programmable pushbuttons ......................................................................... 601
User-programmable pushbutton operation................................................................................602
User-programmable pushbutton settings....................................................................................603
User-programmable pushbutton editor ........................................................................................606
13 SECURITY Password security .....................................................................................................609
Password security operation...............................................................................................................610
Password security settings...................................................................................................................610
EnerVista security management system .............................................................. 613
Enable the security management system ....................................................................................613
Add a new user ..........................................................................................................................................614
Modify user privileges .............................................................................................................................615
14 TESTING Test mode ................................................................................................................... 617
Force contact inputs................................................................................................................................617
Force contact outputs ............................................................................................................................618
Self-tests ..................................................................................................................... 619
Self-test error messages .......................................................................................................................620
Self-test logic operands .........................................................................................................................625
15 THEORY OF
OPERATION
Distance elements..................................................................................................... 627
Distance element arming logic ..........................................................................................................627