MR ETOS IM - Page 217

7 Operation
Maschinenfabrik Reinhausen GmbH 2019 2175163667/06 EN ETOS
®
IM
To monitor the dissipation factor of the bushings, you must set the following
parameters for commissioning the transformer:
▪ F1/F2-tanδ: Activate diss. factor monit.
▪ F1/F2-tanδ: Δtanδ >
▪ F1/F2-tanδ: Perform standardization
Figure163: Configuring bushing monitoring
F1/F2-tanδ: Activate dissipation factor monitoring
You can use this parameter to activate or deactivate dissipation factor moni-
toring in field 1 or field 2.
After being switched on, dissipation factor monitoring only becomes active
once a delay time has elapsed (factory setting of 60minutes) in order to
avoid errors resulting from transients.
To activate/deactivate dissipation factor monitoring, proceed as follows:
1. Go to Settings > Parameters > Bushing monitoring field1/field2 > F1/
F2-tanδ: Activate diss. factor monit..
2. Select the desired option.
3. Press the Accept button to save the modified parameter.
Limit value F1/F2-tanδ: Δtanδ >
You can set a limit value for monitoring the bushings in field 1 or field 2. If
the limit value is exceeded, the monitoring system triggers an event mes-
sage and issues a signal at the digital output.
To set the limit value F1/F2-tanδ: Δtanδ >, proceed as follows:
1. Go to Settings > Parameters > Bushing monitoring field1/field2 > F1/
F2-tanδ: Δtanδ >.
2. Enter the desired value.
3. Press the Accept button to save the modified parameter.