Table of Contents
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9. THEORY OF OPERATION
10. APPLICATION OF
SETTINGS
11. MAINTENANCE
A. FLEXANALOG AND
FLEXINTEGER
PARAMETERS
GE Multilin
TABLE OF CONTENTS
9.1 DISTANCE ELEMENTS
9.1.1
INTRODUCTION................................................................................................ 9-1
9.1.2
PHASOR ESTIMATION ..................................................................................... 9-1
9.1.3
DISTANCE CHARACTERISTICS ...................................................................... 9-2
9.1.4
MEMORY POLARIZATION................................................................................ 9-6
9.1.5
DISTANCE ELEMENTS ANALYSIS .................................................................. 9-7
9.2 PHASE DISTANCE APPLIED TO POWER TRANSFORMERS
9.2.1
DESCRIPTION................................................................................................. 9-11
9.2.2
EXAMPLE ........................................................................................................ 9-14
9.3.1
DESCRIPTION................................................................................................. 9-16
9.3.2
EXAMPLE ........................................................................................................ 9-16
9.4 SERIES COMPENSATED LINES
9.4.1
DESCRIPTION................................................................................................. 9-18
9.5 FAULT LOCATOR
9.5.1
FAULT TYPE DETERMINATION..................................................................... 9-21
10.1 APPLICATION GUIDELINES
10.1.1
INTRODUCTION.............................................................................................. 10-1
10.1.2
IMPACT OF MEMORY POLARIZATION ......................................................... 10-1
10.1.3
HIGH SET OVERCURRENT ELEMENTS ....................................................... 10-1
10.2 DISTANCE ELEMENTS (STEPPED DISTANCE SCHEME)
10.2.1
PHASE DISTANCE.......................................................................................... 10-2
10.2.2
GROUND DISTANCE ...................................................................................... 10-3
10.3 SERIES COMPENSATED LINES
10.3.1
INTRODUCTION.............................................................................................. 10-6
10.3.2
DISTANCE ....................................................................................................... 10-6
10.3.3
GROUND DIRECTIONAL OVERCURRENT ................................................... 10-7
10.3.4
HIGH-SET PHASE OVERCURRENT .............................................................. 10-7
10.4 PHASE DISTANCE THROUGH POWER TRANSFORMERS
10.4.1
PHASE DISTANCE PROTECTION ................................................................. 10-8
10.4.2
EXAMPLE ........................................................................................................ 10-9
11.1 MODULES
11.1.1
REPLACE A MODULE..................................................................................... 11-1
11.2 BATTERIES
11.2.1
REPLACE BATTERY....................................................................................... 11-3
11.2.2
DISPOSE OF BATTERY.................................................................................. 11-4
11.3.1
UNINSTALL AND CLEAR FILES AND DATA.................................................. 11-7
11.4.1
REPAIRS ......................................................................................................... 11-8
11.5.1
STORAGE........................................................................................................ 11-9
11.6.1
DISPOSAL ..................................................................................................... 11-10
A.1 PARAMETER LISTS
A.1.1
FLEXANALOG ITEMS .......................................................................................A-1
A.1.2
FLEXINTEGER ITEMS ....................................................................................A-10
D30 Line Distance Protection System
vii
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