MR ETOS TD User Manual

Table of contents
Maschinenfabrik Reinhausen GmbH 2020 74453918/14 EN ETOS
®
TD
9.22.4 Power flow monitoring.......................................................................................................................................201
9.22.5 Tap position monitoring (optional).....................................................................................................................203
9.22.6 U bandwidth monitoring ....................................................................................................................................204
9.22.7 Q bandwidth monitoring (optional) ....................................................................................................................206
9.22.8 Phase symmetry monitoring..............................................................................................................................208
9.22.9 Temperature monitoring....................................................................................................................................209
9.22.10 Monitoring the gas volume of the Buchholz relay (OLTC) ................................................................................210
9.22.11 Monitoring the gas volume of the Buchholz relay (transformer)........................................................................211
9.22.12 Monitoring the oil pressure (transformer) ..........................................................................................................211
9.22.13 Monitoring the oil pressure (on-load tap-changer) ............................................................................................212
9.23 Target-tap-position operation.......................................................................................................... 213
9.24 Measured values ............................................................................................................................ 213
9.24.1 Displaying current measured values .................................................................................................................213
9.24.2 Displaying measured value recorder (optional).................................................................................................214
9.24.3 Setting the measured value recorder ................................................................................................................218
9.24.4 Displaying temperature curve (optional) ...........................................................................................................220
9.24.5 Displaying winding temperatures (optional) ......................................................................................................221
9.24.6 Displaying the measured values of the Buchholz relay (optional).....................................................................221
9.24.7 Displaying the measured values of the pressure relief device (optional) ..........................................................222
9.24.8 Displaying the measured value trend of the oil level and dehydrating breather (optional)................................222
9.25 On-load tap-changer monitoring..................................................................................................... 223
9.25.1 Changing tap position designation (optional) ....................................................................................................223
9.25.2 Setting the TCR calculation factor (optional).....................................................................................................223
9.25.3 Displaying tap-change operation statistics (optional)........................................................................................224
9.25.4 Motor Current Index (MCI) ................................................................................................................................225
9.25.5 Displaying information about contact wear (only OILTAP®).............................................................................229
9.25.6 Configuring OLTC PreCheck ............................................................................................................................230
9.25.7 Information about the on-load tap-changer .......................................................................................................231
9.26 Transformer monitoring (optional) .................................................................................................. 232
9.26.1 Hot-spot calculation (optional)...........................................................................................................................232
9.26.2 Hot-spot forecast (optional)...............................................................................................................................235
9.26.3 Setting calculation of transformer's loss of life (optional) ..................................................................................236
9.26.4 Displaying protective device status (optional) ...................................................................................................237
9.27 Dissolved gas analysis (optional) ................................................................................................... 237
9.27.1 Configuring DGA monitoring .............................................................................................................................238
9.27.2 Displaying measured values .............................................................................................................................241

MR ETOS TD Specifications

General

Brand	MR
Model	ETOS TD
Category	DC Drives
Language	English