ABB Relion 670 Series Applications Manual page 513
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Also See for Relion 670 Series:
- Technical manual (1432 pages) ,
- Technical reference manual (1232 pages) ,
- Applications manual (944 pages)
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1MRK 511 401-UEN Rev. K
RLMaxTap : This setting is used to set the ratio of load losses to no-load loss at maximum tap
position where maximum voltage is possible.
RLMinTap : This setting is used to set the ratio of load losses to no-load loss at minimum tap
position where minimum voltage is possible.
RatedVoltTap : This setting is used to set the position number of tap changer at rated voltage.
HighVoltTap : This setting is used to set the position number of tap changer at possible
maximum voltage.
LowVoltTap : This setting is used to set the position number of tap changer at possible
minimum voltage.
The following settings are required to perform the calculation of top oil temperature using
monthly model of ambient temperature when AMBVALID is low:
JanAmbTmp : This setting is used to set the January month average ambient temperature.
FebAmbTmp : This setting is used to set the February month average ambient temperature.
MarchAmbTmp : This setting is used to set the March month average ambient temperature.
AprilAmbTmp : This setting is used to set the April month average ambient temperature.
MayAmbTmp : This setting is used to set the May month average ambient temperature.
JuneAmbTmp : This setting is used to set the June month average ambient temperature.
JulyAmbTmp : This setting is used to set the July month average ambient temperature.
AugAmbTmp : This setting is used to set the August month average ambient temperature.
SepAmbTmp : This setting is used to set the September month average ambient temperature.
OctAmbTmp : This setting is used to set the October month average ambient temperature.
NovAmbTmp : This setting is used to set the November month average ambient temperature.
DecAmbTmp : This setting is used to set the December month average ambient temperature.
The hot spot temperature calculation is done by estimating the temperature rise between the
hot spot and the top oil. This difference is due to stray losses, local oil flows and additional
paper on conductor. The function has the following settings related to hot spot to top oil
temperature gradient calculation.
HPTmpRiseW1 : This setting is used to set the hot spot temperature rise of winding 1 above
ambient temperature in K (Kelvin).
HPTmpRiseW2 : This setting is used to set the hot spot temperature rise of winding 2 above
ambient temperature in K (Kelvin).
HPTmpRiseW3 : This setting is used to set the hot spot temperature rise of winding 3 above
ambient temperature in K (Kelvin).
TopOilTmpRise : This setting is used to set the top oil temperature rise above ambient
temperature in K (Kelvin).
Bay control REC670
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Section 18
Monitoring
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GUID-F6960AEE-E0F9-4675-B8F2-A5DD53B10FEA v1
507
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