Annual Maintenance Tasks - Ingeteam INGECON SUN PowerMax TL U B 1000 Vdc Series Installation And Operation Manual

Maintenance

22.2.4. ANNUAL maintenance tasks

Unit housing (inspection, voltage-free)
You must carry out a visual check of the condition of the housing, confirming the condition of the locks, doors and
handles as well as the fixing of the units to their anchor points. In addition, you must check the condition of the
housing for dents, scratches or rust that might degrade the unit or cause it to lose its protection classification. If
these types of defects are noticed, the parts affected must be replaced.
Check the condition of the cables entries and ensure they have the same degree of protection as the unit itself.
Apply talcum powder on the elastic joints on the cover.
Busbars (inspection, voltage-free)
Visually check that the busbars on the AC and DC power maintain the security distance along with the initial
electrical properties and are rust and humidity free.
Wiring and connections (inspection, voltage-free)
Check that the unit´s signal wiring, along with the aerial connectors are in good condition and properly installed.
Check the correct path of the cables so they do not come into contact with live parts.
Check the insulation deficiencies and hot spots by checking the color of the insulation and terminals.
Relays (inspection, voltage-free)
Check visually, always with no voltage on the unit, that there is no darkening of the relay housing caused by heating
and that the standby position is correct. They must be replaced if any anomaly is observed.
Below are a list of relays that must be checked:
DCAC connections module
AC and DC arresters (inspection, voltage-free)
Check that the AC and DC arrestor status indicator is not red and that it is installed solidly in its base.
Inverter grounding (inspection, voltage-free)
Check that the inverter´s grounding connection is correct.
AC thermomagnetic circuit breaker (action, voltage-free)
DANGER
To carry out the maintenance tasks for the AC thermomagnetic circuit breaker it is also necessary to disconnect
the inverter and check the absence of voltage upstream and downstream of the inverter. To do this, open the
Medium Voltage protections or equivalent systems.
INFO
The AC thermomagnetic circuit breaker operation and maintenance manual is provided with the inverter. Follow
the instructions provided.
In the event of an automatic trip of the AC thermomagnetic circuit breaker, follow the instructions specified in
the manufacturer's manual.
All inspection tasks shall be carried out following the manufacturer's manual.
The following parts must be lubricated annually for the correct maintenance of the AC thermomagnetic circuit
breaker:
• Motor.
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