9 Visualization
Maschinenfabrik Reinhausen GmbH 2020 2374453918/14 EN ETOS
®
TD
Anticipated service life
You can use this parameter to set the anticipated service life of the trans-
former in years. This parameter is used to calculate the loss of life.
9.26.4 Displaying protective device status (optional)
The overview display shows you the current status of the connected protec-
tive devices.
Figure171: Overview display of the status of the protective devices
► Go to Information > Protective devices > Protective devices status >
Buchholz relay.
9.27 Dissolved gas analysis (optional)
You can use the optional function "Dissolved gas analysis" (DGA) to monitor
the gas content and the moisture in the transformer oil. Depending on the
device configuration, the device records the measured values from the sen-
sors either as analog signals (4...20 mA) or MR sensor bus. For the configu-
ration of the sensors, refer to sections "Configuring analog inputs and out-
puts" [►Section 9.29, Page 257] and "MR sensor bus" [►Section 9.28,
Page 246].
The values determined and calculated using the function "Dissolved gas
analysis" can exhibit measuring inaccuracies that arise from the measuring
inaccuracies of the sensors. Therefore, refer to the sensor operating instruc-
tions for further information on the measuring accuracy and any necessary
calibration.
Depending on the device configuration, the dissolved gas analysis includes
the following sub-functions:
▪ Display of the absolute values
▪ Display of the rates of increase
▪ Display of the measured value trend
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