General Settings Of The Instance - ABB REG670 Applications Manual

Section 12
Multipurpose protection
12.1.3.8
12.1.3.9
12.1.3.10
462

General settings of the instance

Operation: With the parameter Operation the function can be set On/Off.
CurrentInput: The current used for the inadvertent energization application is set by
the parameter CurrentInput. Here the setting MaxPh is chosen.
GlobalBaseSel: Selects the global base value group used by the function to define
(IBase), (UBase) and (SBase).
VoltageInput: The Voltage used for the inadvertent energization application is set by
the parameter VoltageInput. Here the setting MaxPh-Ph is chosen.
OperHarmRestr: No 2nd harmonic restrain is used in this application:
OperHarmRestr is set Off. It can be set On if the instance is used also for other
protection functions.
EnRestrainCurr: The restrain current function is not used in this application:
EnRestrainCurr is set Off. It can be set On if the instance is used also for other
protection functions.
Settings for OC1
Operation_OC1: The parameter Operation_OC1 is set On to activate this function.
StartCurr_OC1: The operate current level for OC1 is set by the parameter
StartCurr_OC1. The setting is made in % of IBase. The setting should be made so that
the protection picks up at all situations when the generator is switched on to the grid
at stand still situations. The generator current in such situations is dependent of the
short circuit capacity of the external grid. It is however assumed that a setting of 50%
of the generator rated current will detect all situations of inadvertent energization of
the generator.
CurveType_OC1: The time delay of OC1 should be of type definite time and this is set
in the parameter CurveType_OC1 where ANSI Def. Time is chosen.
tDef_OC1: The time delay is set in the parameter tDef_OC1 and is set to a short time.
0.05 s is recommended. Note that the value set is the time between activation of the
start and the trip outputs.
VCntrlMode_OC1: Voltage control mode for OC1: VCntrlMode_OC1 is set Off.
HarmRestr_OC1: Harmonic restrain for OC1: HarmRestr_OC1 is set Off.
DirMode_OC1: Direction mode for OC1: DirMode_OC1 is set Off.
Setting for OC2
Operation_OC2: Operation_OC2 is set Off if the function is not used for other
protection function.
Generator protection REG670 2.2 IEC and Injection equipment REX060, REX061, REX062
1MRK 502 071-UEN -
Application manual