SMA TCS 500-SC Maintenance manual - Manual (Page 11)

SMA Solar Technology AG 3 Maintenance Schedule
Maintenance manual TCS-CP-WH-en-10 11
Interval Component Activity
If required Concrete station • Clean air inlets and outlets
Steel station • Clean air inlets and outlets
Station sub-distribution • Test residual-current device before using the socket
• Check the lighting
Medium-voltage
transformer • Check sealing joints of the transformer and tighten
screws slightly if necessary
• Clean insulators
• Remove any rust stains and repaint
• Drain and refill oil
• Take oil samples
MV switchgear* • Clean interior
• Clean enclosure
• Clean surfaces
• Check screw connections
• Check cable connections
• Check fuses or circuit breakers
• Check measuring instruments
MV transformer
protection device from
Automation 2000 • Take oil samples
• Carry out a gas discharge
• Carry out an overpressure test
• Test thermostat
Low-voltage meter (GSE)
from Landis+Gyr AG** • Change battery
Interval
depends on
national
regulations
and
standards Low-voltage meter (GSE)
from Landis+Gyr AG • Check optical test output
• Carry out creep test
• Check active power measurement
• Check reactive power measurement