10.2.4 Maintenance Work Every 6 Years
Medium-voltage switchgear
Maintenance under voltage-free conditions
Task
See
Perform a 12 months-maintenance.
Perform a 24 months-maintenance.
Clean the external elements with a clean, dry cloth.
Documentation for the medium-
voltage switchgear
Check that the position indicators (OFF and ON) are aligned.
Check function of the mechanical drive by means of various electronic circuits.
Check the general condition of the electrical connections.
‒
MV transformer
Task
See
Take an oil sample and have it tested.
Documentation for the MV trans-
former
10.2.5 Maintenance Work Every 10 Years
Medium-voltage switchgear
Maintenance under voltage-free conditions
Task
See
Perform a 12-months maintenance.
Perform a 24-months maintenance.
Replace the HV/HRC fuses.
Documentation for the medium-
voltage switchgear
Replace the voltage indicator.
10.2.6 Demand-Based Maintenance
10.2.6.1 All Devices
Task
See
Prior to each switching procedure of the medium-voltage switchgear, check the
level of the SF6 gas holders.
Documentation for the medium-
voltage switchgear
Check the MV transformer for operating noise.
‒
Contact the SMA Service Line after each short circuit.
‒
Prior to each use of the outlet, check the residual-current device in the station sub-
distribution.
‒
10 Maintenance
SMA Solar Technology AG
System Manual
MVPS22JP-SH-en-11
138
Summary of Contents for 1000-1SC
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