ABB Relion 670 Series Applications Manual page 516

Section 18
Monitoring
Parameter
Connection Type
Cooling
p.u. Impedance
At Base
CT ratio Winding 1
CT ratio Winding 2
CT ratio Winding 3
18.11.3.2 Setting parameters for insulation loss of life calculation function (LOL1)
Table 76:
Setting
Operation
TrafoRating
TrafoType
NoOfWindings
ConstSelection
CurrSelectMode
TempeUnitMode
AvailableCT
RatedVoltageW1
RatedVoltageW2
RatedVoltageW3
UPerTap
OilTmConstMode
Table continues on next page
510
Value
Setting parameters for insulation loss of life calculation function (LOL1)
Short Description
Activation of transformer insulation
loss of life calculation function
Set the transformer rated power of the
function on which the parameters are
selected
Select the transformer number of
phases
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
Select the transformer oil time
constant mode of input to the
function
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YNyn0d1
ONAF
0.120
500 MVA
1000/1 A
2000/1 A
1000/1 A
Tap changer is with
winding 2 and it is
mentioned that
voltage difference
1.67 % of winding 2
rated voltage.
1MRK 511 401-UEN Rev. K
Note
GUID-6869A06A-4DDC-4FB5-AC56-5463F3709862 v1
Selected value
On
500 MVA
Three phase
Three winding
IEC
Maximum
°C
All windings
415.0 kV
230.0 kV
20.0 kV
3.84 kV
Standard
Bay control REC670
Application manual