12.3.5 Technical data
Table 244: TR8ATCC, TCMYLTC technical data
Function
Range or value Accuracy
Transformer reactance on
ATCC side
(0.1–200.0)Ω, primary -
Time delay for lower
command when fast step
down mode is activated
(1.0–100.0) s
-
Voltage control set voltage (85.0–120.0)% of UB2 ±0.5% of U
r
Outer voltage deadband (0.2–9.0)% of UB2 ± 5,0% of set value
Inner voltage deadband (0.1–9.0)% of UB2 ± 5,0% of set value
Upper limit of busbar voltage (80–180)% of UB2 ± 0.5% of U
r
Lower limit of busbar voltage (70–120)% of UB2 ± 0.5% of U
r
Undervoltage block level (0–120)% of UB2 ± 0.5% of U
r
Time delay (long) for
automatic control commands
(3–1000) s ± 0.5% ± 110 ms
Time delay (short) for
automatic control commands
(1–1000) s ± 0.5% ± 110 ms
Minimum operating time in
inverse mode
(3–120) s ± 0.5% ± 110 ms
Line resistance (0.00–150.00)Ω, primary -
Line reactance (-150.00–150.00)Ω, primary -
Load voltage adjustment
constants
(-20.0–20.0)% of UB2 ± 5,0% of set value
Load voltage auto correction (-20.0–20.0)% of UB2 ± 5,0% of set value
Overcurrent block level (0–250)% of IBase (for winding 1 which is
defined in a global base function, selected
with setting GlobalBaseSel1 for
TR8ATCC)
± 1.0% of I
r
at I≤I
r
± 1.0% of I at I>I
r
Level for number of counted
raise/lower within one hour
(0–30) operations/hour -
Level for number of counted
raise/lower within 24 hours
(0–100) operations/day -
Time window for hunting
alarm
(1–120) minutes -
Hunting detection alarm, max
operations/window
(3–30) operations/window -
Alarm level of active power in
forward and reverse direction
(-9999.99–9999.99) MW ± 1.0% of S
r
Alarm level of reactive power
in forward and reverse
direction
(-9999.99–9999.99) MVAr
± 1.0% of S
r
Time delay for alarms from
power supervision
(1–6000) s ± 0.5% ± 110 ms
Tap position for lowest and
highest voltage
(1–63) -
Type of code conversion Binary, BCD, Gray, ContactPerTap -
Table continues on next page
1MRK 504 135-UEN A Section 12
Control
351
Technical manual
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