ABB Relion 650 Series Product Manual page 76

Transformer protection RET650
Version 2.2
Table 59. Voltage control TR1ATCC , TCMYLTC
Function
Transformer reactance
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
Duration time for the reverse action block signal
Current limit for reverse action block
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 at
(10-200)% of S and (85-120)% of UBase
r
Alarm level of reactive power in forward and reverse direction at
(10-200)% of S and (85-120)% of UBase
r
Time delay for alarms from power supervision
Tap position for lowest and highest voltage
mA for lowest and highest voltage tap position
Type of code conversion
76
SEMOD175215-2 v15
Range or value
(0.1–200.0) Ω, primary
(1.0–100.0) s
(85.0–120.0)% of UBase
(0.2–9.0)% of UBase
(0.1–9.0)% of UBase
(80–180)% of UBase
(70–120)% of UBase
(50–120)% of UBase
(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 UBase
(-20.0–20.0)% of UBase
(30–6000) s
(0–100)% of I1Base
(5–250)% of I1Base
(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)
(0.000–25.000) mA
BIN, BCD, GRAY, SINGLE, mA
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1MRK 504 172-BEN G
Accuracy
-
-
±0.25% of U
r
-
-
±0.5% of U
r
±0.5% of U
r
±0.5% of U
r
±0.2% or ±600 ms
whichever is greater
±0.2% or ±600 ms
whichever is greater
±0.2% or ±600 ms
whichever is greater
-
-
-
-
±0.2% or ±600 ms
whichever is greater
-
±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
±0.2% or ±600 ms
whichever is greater
-
-
-
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