SMA MEDIUM VOLTAGE POWER STATION 500SC-JP System Manual page 116

9 Troubleshooting
Error
The transformer for internal
power supply does not sup-
ply voltage.
The lighting in the medium-
voltage compartment is not
working.
116 MVPS22JP-SH-en-11
Cause and corrective measure
The transformer circuit breaker has tripped.
Corrective measures:
• Ensure that the nominal current on the primary side of the transformer for internal
power supply is correctly set.
• Switch the transformer circuit breaker back on.
The transformer for internal power supply is defective.
Corrective measures:
• Replace the transformer for internal power supply. Contact the Service (see
Section 17, page 256).
The EMC filtering device is defective.
Corrective measures:
• Replace the EMC filtering device. Contact the Service (see Section 17, page 256).
The cabling is damaged.
Corrective measures:
• Ensure that the cabling is intact.
The lamps are defective.
Corrective measures:
• Replace the lamps.
The circuit breaker has tripped.
Corrective measures:
• Check whether apparent damage is visible in the corresponding electrical circuit.
If any damage is present, remove it.
• Switch the circuit breaker back on.
The voltage supply of the MV Power Station failed.
Corrective measures:
• Ensure that the supply voltage is present (see error "Supply voltage is not
present").
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