ABB Relion 670 Series Applications Manual page 490

Section 17
Monitoring
Setting
NoOfWindings
ConstSelection
CurrSelectMode
TempeUnitMode
AvailableCT
RatedVoltageW1
RatedVoltageW2
RatedVoltageW3
UPerTap
OilTmConstMode
OilTimeConst
AvgOilTmpRise
CoilCoreMass
OilMass
TankMass
LoadLoss
TTLoadLoss
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484
Short Description
Select the transformer number of
windings
Select the standard from which the
transformer parameters should be
taken
Select the method for the
determination of current on which the
load factor needs to be calculated
Select the unit of temperature should
be used in the function
Select the available CT connections on
the windings
Set the winding 1 rated nominal
voltage
Set the winding 2 rated nominal
voltage
Set the winding 3 rated nominal
voltage
Set the voltage increment or
decrement between two successive
tap positions
Tap changer is with
winding 2 and it is
mentioned that
voltage difference
1.67 % of winding 2
rated voltage.
Select the transformer oil time
constant mode of input to the
function
Set the transformer oil time constant
when the oil time constant mode is
User defined
selected as
Set the transformer average oil
temperature rise for the calculation of
oil time constant
Set the transformer coil and core
assembly mass for the calculation of
oil time constant
Set the transformer oil mass for the
calculation of oil time constant
Set the transformer tank mass which
is having direct contact with heated oil
for the calculation of oil time constant
Set the rated load loss of the
transformer for the calculation of oil
time constant
Set the load loss of the transformer
arrived from the type test for the
calculation of oil time constant
© Copyright 2017 ABB. All rights reserved
Selected value
Three winding
IEC
Maximum
°C
All windings
415.0 kV
230.0 kV
20.0 kV
3.84 kV
Standard
9000.0 sec
45° C
65.0 t
35.0 t
15.0 t
10.0 MW
10.0 MW
1MRK 511 401-UUS F
Bay control REC670
Application manual