![MR MSENSE VAM Скачать руководство пользователя страница 22](http://html.mh-extra.com/html/mr/msense-vam/msense-vam_operating-instructions-manual_1844343022.webp)
4 Product description
Maschinenfabrik Reinhausen GmbH 2021
22
6796573/02 EN
MSENSE
®
VAM
Using the implemented algorithms, the monitoring system can reliably detect
any potential anomalies that occur in the vibro-acoustic signal progression,
taking the temperature variations of the on-load tap-changer oil into account.
Status message
The MSENSE® VAM monitoring system produces a 3-stage status mes-
sage:
Status
Device/visualization dis-
play
SCADA/digital output re-
mote signaling
Normal
OK message through blue
status message
No remote signaling
Warning
The first and the second
anomalies in an evaluation
cluster are indicated via a
yellow status message in
the VAM analysis (Infor-
mation menu).
No remote signaling
Alarm
A third anomaly arising in
an evaluation cluster or
the third successive anom-
aly triggers an additional
event message (Events
menu).
This event message is
transmitted to a connected
SCADA system.
In addition, it can also be
sent to a digital output.
4.4 Performance features
The MSENSE® VAM monitoring system monitors the vibro-acoustic signals
from on-load tap-changers and has the following :
▪ Monitoring on-load tap-changers/reactors in accordance with the technical
specification in the order confirmation
▪ Suitable for on-load tap-changers with oil-switch and vacuum-switch tech-
nology
▪ Recording of the vibro-acoustic signals during on-load tap-changer opera-
tion via automatic triggering
▪ Evaluation of the vibro-acoustic signal progression with regard to time and
amplitude anomalies
▪ Self-learning limit value at an oil temperature above 15 °C, which moves
towards the signal progression with increasing tap-change frequency Ap-
proximately 5 tap-change operations per evaluation cluster (e.g. 5x from
step 1 to step 2 in reverse tap-change operation) are necessary before
the first limit value curve is displayed.
The signals are also evaluated below 15 °C, but the limit value is not ad-
justed.
▪ Display and recording of the measured and calculated values
▪ Status messages via digital outputs
▪ Web-based visualization
Содержание MSENSE VAM
Страница 1: ...Monitoring system MSENSE VAM Operating Instructions 6796573 02 EN ...
Страница 172: ......
Страница 173: ......