ABB UniSec Руководство по эксплуатации и техническому обслуживанию - Страница 9
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D I S T R I B U T I O N S O LU T I O N S
Similarly, the measurement that exceeds the
warning threshold is shown in yellow in the mobile
APP.
In this case, the temperature value in the
"cable 1 c" position exceeds the threshold
value and therefore appears in red
NOTE
Consult user manual 2NGA000492 of
concentrator MDC4-M for further details
To find out which parameter has exceeded its
threshold, check the "health diagnosis" screen or
mobile APP and proceed as described below:
• If the alarm is due to temperature imbalance
between the phases, maintenance must be
planned to find out the reason for the imbalance
and restore the circuit to its normal operating
conditions
• Comply with the instructions in manual
1VFM200005 if a low or high pressure alarm
occurs in GSec/HySec devices:
- The apparatus must be taken out of service in
no-load conditions
- Identify and resolve the fault
- Restore the pressure to its rated value and put
the apparatus back into service
• In the event of a warning, it means that the
parameter is outside the nominal values and is
approaching the alarm threshold. In this case it is
necessary to monitor the parameter to prevent it
from exceeding the alarm threshold and to
intervene during the next scheduled maintenance
intervention to identify the cause of the anomaly.
NOTE
Consult the UniSec operation and
maintenance manual for further details
about maintenance operations
WARNING
If one or more of the temperature values in
the "Real time Temp" screen exceeds 100°C,
maintenance must be planned to find out the reason
for the high temperature value and restore the circuit
to its normal operating conditions
WARNING
The switchgear has been designed for use in
normal operating conditions at up to 95%
relative humidity for 24 hours and up to 90% for one
month. Should the humidity value in the "ambient
parameters" screen exceed these values, the useful
life of the switchgear could become rapidly reduced
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