MR ETOS TD, Руководство по эксплуатации

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9 Visualization
Maschinenfabrik Reinhausen GmbH 2020 234 4453918/14 EN ETOS
®
TD
IEC: k21
You can use this parameter to set the thermal model constant k21 for calcu-
lating the hot-spot temperature in accordance with IEC 60076-7.
IEC: k22
You can use this parameter to set the thermal model constant k22 for calcu-
lating the hot-spot temperature in accordance with IEC 60076-7.
IEEE: gradient
You can use this parameter to set the gradients for calculating the hot-spot
temperature in accordance with IEEE Std C57.91.
IEEE: exponent
You can use this parameter to set the exponents for calculating the hot-spot
temperature in accordance with IEEE Std C57.91.
Nominal current
You can use this parameter to set the nominal current of the transformer for
calculating the hot-spot temperature in accordance with IEC 60076-7 or
IEEE Std C57.91.
Winding time constant
You can use this parameter to set the winding time constant for calculating
the hot-spot temperature in accordance with IEC 60076-7 or
IEEE Std C57.91.
IEEE: Oil exponent
You can use this parameter to set the oil exponent of the transformer in ac-
cordance with IEEE Std C57.91.
Rated power of the transformer
You can use this parameter to set the rated power of the transformer. This
parameter is used for calculating the actual power based on the determined
load factor.
Increase of the upper oil temperature
You can use this parameter to set the increase of the upper oil temperature
above ambient temperature (at rated load). The value to be set depends on
the design of your transformer.