ABB Relion REG670, Technical Manual

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Name Values (Range) Unit Step Default Description
Tau1Low 5 - 2000 %tC1 1 100 Multiplier in % to TC1 when current is <
ILOW-TC1
IHighTau2 30.0 - 250.0 %IB2 1.0 100.0 Current Set, in % of IBase2 for rescaling
TC2 by TC2-IHIGH
Tau2High 5 - 2000 %tC2 1 100 Multiplier in % to TC2 when current is
>IHIGH-TC2
ILowTau2 30.0 - 250.0 %IB2 1.0 100.0 Current Set, in % of IBase2 for rescaling
TC2 by TC2-ILOW
Tau2Low 5 - 2000 %tC2 1 100 Multiplier in % to TC2 when current is <
ILOW-TC2
ITrip 50.0 - 250.0 %IBx 1.0 110.0 Steady state operate current level in % of
IBasex
Alarm1 50.0 - 99.0 %Itr 1.0 80.0 First alarm level in % of heat content trip
value
Alarm2 50.0 - 99.0 %Itr 1.0 90.0 Second alarm level in % of heat content
trip value
ResLo 10.0 - 95.0 %Itr 1.0 60.0 Lockout reset level in % of heat content
trip value
ThetaInit 0.0 - 95.0 % 1.0 50.0 Initial Heat content, in % of heat content
trip value
Warning 1.0 - 500.0 Min 0.1 30.0 Time setting, below which warning would
be set (in min)
tPulse 0.01 - 0.30 s 0.01 0.10 Length of the pulse for trip signal (in sec).
Table 197: TRPTTR Non group settings (basic)
Name Values (Range) Unit Step Default Description
GlobalBaseSel 1 - 12 - 1 1 Selection of one of the Global Base Value
groups
8.7.6 Monitored data
Table 198: TRPTTR Monitored data
Name Type Values (Range) Unit Description
HEATCONT REAL - % Percentage of the heat
content of the
transformer
I-MEASUR REAL - % Current measured by the
function in % of the rated
current
TTRIP INTEGER - - Estimated time to trip (in
min)
Table continues on next page
1MRK502052-UEN B
Section 8
Current protection
403
Technical manual