2-20
D30 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
SPECIFICATIONS
CHAPTER 2: PRODUCT DESCRIPTION
2
Level:
neutral current (3I_0)
Pickup:
0.050 to 30.000 pu in steps of 0.001
Dropout:
97 to 98%
Memory duration:
5 to 25 cycles in steps of 1
Voltage supervision pickup (series compensation applications):
0 to 5.000 pu in steps of 0.001
GROUND DISTANCE OPERATING TIME CURVES
The operating times are response times of a microprocessor part of the relay. See output contacts specifications for estimation of the
total response time for a particular application. The operating times are average times including variables such as fault inception angle
or type of a voltage source (magnetic VTs and CVTs). The figure shows zone 1 ground distance time curves for a 60 Hz system at nominal
system frequency.
LINE PICKUP
Phase instantaneous overcurrent:
0.020 to 30.000 pu
Undervoltage pickup:
0.004 to 3.000 pu
Overvoltage delay:
0.000 to 65.535 s
PHASE/NEUTRAL/GROUND TOC
Current:
Phasor or RMS
Pickup level:
0.020 to 30.000 pu in steps of 0.001
Dropout level:
97% to 98% of pickup
Level accuracy:
0.1 to 2.0
×
CT:
±0.5% of reading or ±0.4% of rated (whichever is greater)
> 2.0
×
CT:
±1.5% of reading > 2.0
×
CT rating
Curve shapes:
IEEE Moderately/Very/Extremely Inverse; IEC (and BS) A/B/C and Short Inverse; GE IAC Inverse,
Short/Very/ Extremely Inverse; I
2
t; FlexCurves™ (programmable); Definite Time (0.01 s base
curve)
Curve multiplier:
Time Dial = 0.00 to 600.00 in steps of 0.01
Reset type:
Instantaneous/Timed (per IEEE)
Curve timing accuracy at 1.03 to 20 x pickup:
±3.5% of operate time or ±½ cycle (whichever is greater) from pickup to operate
Voltage restraint:
Modifies pickup current for voltage in the range of 0.1 < V < 0.9 VT Nominal in a fixed linear rela-
tionship
Содержание D30 series
Страница 10: ...x D30 LINE DISTANCE PROTECTION SYSTEM INSTRUCTION MANUAL TABLE OF CONTENTS ...
Страница 14: ...1 4 D30 LINE DISTANCE PROTECTION SYSTEM INSTRUCTION MANUAL FOR FURTHER ASSISTANCE CHAPTER 1 INTRODUCTION 1 ...
Страница 52: ...2 38 D30 LINE DISTANCE PROTECTION SYSTEM INSTRUCTION MANUAL SPECIFICATIONS CHAPTER 2 PRODUCT DESCRIPTION 2 ...
Страница 534: ...5 324 D30 LINE DISTANCE PROTECTION SYSTEM INSTRUCTION MANUAL TESTING CHAPTER 5 SETTINGS 5 ...
Страница 564: ...6 30 D30 LINE DISTANCE PROTECTION SYSTEM INSTRUCTION MANUAL PRODUCT INFORMATION CHAPTER 6 ACTUAL VALUES 6 ...
Страница 578: ...7 14 D30 LINE DISTANCE PROTECTION SYSTEM INSTRUCTION MANUAL TARGETS MENU CHAPTER 7 COMMANDS AND TARGETS 7 ...
Страница 614: ...9 26 D30 LINE DISTANCE PROTECTION SYSTEM INSTRUCTION MANUAL FAULT LOCATOR CHAPTER 9 THEORY OF OPERATION 9 ...
Страница 654: ...A 10 D30 LINE DISTANCE PROTECTION SYSTEM INSTRUCTION MANUAL FLEXANALOG ITEMS APPENDIX A FLEXANALOG OPERANDS A ...
Страница 662: ...C 6 D30 LINE DISTANCE PROTECTION SYSTEM INSTRUCTION MANUAL COMMAND LINE INTERFACE APPENDIX C COMMAND LINE INTERFACE C ...
Страница 670: ...iv D30 LINE DISTANCE PROTECTION SYSTEM INSTRUCTION MANUAL ABBREVIATIONS ...
Страница 686: ...xvi D30 LINE DISTANCE PROTECTION SYSTEM INSTRUCTION MANUAL INDEX ...