Technical Data - ABB RET650 Technical Manual

Relion 650 series transformer protection
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1MRK 504 135-UEN A
12.3.5
Technical manual

Technical data

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

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