![GE Digital Energy L60 Скачать руководство пользователя страница 402](http://html.mh-extra.com/html/ge-digital-energy/l60/l60_instruction-manual_571854402.webp)
5-272
L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL
CONTROL ELEMENTS
CHAPTER 5: SETTINGS
5
If one or both sources are de-energized, the synchrocheck programming can allow for closing of the circuit breaker using
undervoltage control to bypass the synchrocheck measurements (dead source function).
SYNCHK1 V1 SOURCE
— This setting selects the source for voltage V1 (see the Notes section that follows).
SYNCHK1 V2 SOURCE
— Selects the source for voltage V2, which must not be the same as used for the V1 (see Notes).
SYNCHK1 MAX VOLT DIFF
— Selects the maximum primary voltage difference in volts between the two sources. A primary
voltage magnitude difference between the two input voltages below this value is within the permissible limit for
synchronism.
SYNCHK1 MAX ANGLE DIFF
— Selects the maximum angular difference in degrees between the two sources. An angular
difference between the two input voltage phasors below this value is within the permissible limit for synchronism.
SYNCHK1 MAX FREQ HYSTERESIS
— Specifies the required hysteresis for the maximum frequency difference condition. The
condition becomes satisfied when the frequency difference becomes lower than
SYNCHK1 MAX FREQ DIFF
. Once the
Synchrocheck element has operated, the frequency difference must increase above the
SYNCHK1 MAX FREQ DIFF + SYNCHK1
MAX FREQ HYSTERESIS
sum to drop out (assuming the other two conditions, voltage and angle, remain satisfied).
SYNCHK1 DEAD SOURCE SELECT
— Selects the combination of dead and live sources that bypass the synchronism check
function and permit the breaker to be closed when one or both of the two voltages (V1 or/and V2) are below the maximum
voltage threshold. A dead or live source is declared by monitoring the voltage level. Six options are available:
None — Dead Source function is disabled
LV1 and DV2 — Live V1 and Dead V2
DV1 and LV2 — Dead V1 and Live V2
DV1 or DV2 — Dead V1 or Dead V2
DV1 Xor DV2 — Dead V1 exclusive-or Dead V2 (one source is Dead and the other is Live)
DV1 and DV2 — Dead V1 and Dead V2
SYNCHK1 DEAD V1 MAX VOLT
— Establishes a maximum voltage magnitude for V1 in 1 ‘pu’. Below this magnitude, the V1
voltage input used for synchrocheck is considered “Dead” or de-energized.
SYNCHK1 DEAD V2 MAX VOLT
— Establishes a maximum voltage magnitude for V2 in ‘pu’. Below this magnitude, the V2
voltage input used for synchrocheck is considered “Dead” or de-energized.
SYNCHK1 LIVE V1 MIN VOLT
— Establishes a minimum voltage magnitude for V1 in ‘pu’. Above this magnitude, the V1 voltage
input used for synchrocheck is considered “Live” or energized.
SYNCHK1 LIVE V2 MIN VOLT
— This setting establishes a minimum voltage magnitude for V2 in ‘pu’. Above this magnitude,
the V2 voltage input used for synchrocheck is considered “Live” or energized.
Notes on the synchrocheck function
1.
The selected sources for synchrocheck inputs V1 and V2 (which must not be the same source) can include both a
three-phase and an auxiliary voltage. The relay automatically selects the specific voltages to be used by the
synchrocheck element in accordance with the following table.
Number
V1 or V2 (source Y)
V2 or V1 (source Z)
Auto-selected combination
Auto-selected
voltage
Source Y
Source Z
1
Phase VTs and
Auxiliary VT
Phase VTs and
Auxiliary VT
Phase
Phase
VAB
2
Phase VTs and
Auxiliary VT
Phase VT
Phase
Phase
VAB
3
Phase VT
Phase VT
Phase
Phase
VAB
4
Phase VT and Auxiliary
VT
Auxiliary VT
Phase
Auxiliary
V auxiliary
(as set for source Z)
5
Auxiliary VT
Auxiliary VT
Auxiliary
Auxiliary
V auxiliary
(as set for selected
sources)
Содержание L60
Страница 130: ...4 30 L60 LINE PHASE COMPARISON SYSTEM INSTRUCTION MANUAL LOGIC DIAGRAMS CHAPTER 4 INTERFACES 4 ...
Страница 464: ...5 334 L60 LINE PHASE COMPARISON SYSTEM INSTRUCTION MANUAL TESTING CHAPTER 5 SETTINGS 5 ...
Страница 498: ...7 10 L60 LINE PHASE COMPARISON SYSTEM INSTRUCTION MANUAL TARGETS MENU CHAPTER 7 COMMANDS AND TARGETS 7 ...
Страница 570: ...10 14 L60 LINE PHASE COMPARISON SYSTEM INSTRUCTION MANUAL DISPOSAL CHAPTER 10 MAINTENANCE 10 ...
Страница 582: ...A 12 L60 LINE PHASE COMPARISON SYSTEM INSTRUCTION MANUAL FLEXANALOG ITEMS APPENDIX A FLEXANALOG OPERANDS A ...
Страница 588: ...C 4 L60 LINE PHASE COMPARISON SYSTEM INSTRUCTION MANUAL REVISION HISTORY APPENDIX C MISCELLANEOUS C ...
Страница 592: ...iv L60 LINE PHASE COMPARISON SYSTEM INSTRUCTION MANUAL ABBREVIATIONS ...