SMA MEDIUM VOLTAGE POWER STATION 500SC-JP - Checking the Fuses;Disconnection Blades; Checking the Bolted Connections of the Power Cabling

5. Slide the ventilation plate into the inverter cabinet. The
ventilation grid in the ventilation plate must face the rear panel.
☑ The ventilation grid ends up flush with the inverter.
✖ The ventilation plate will not go all the way in?
• Grip the ventilation plate from underneath and press the middle part upwards while sliding it in.
6. Mount the exhaust duct under the inverter (see Section5.3.2, page53).
7. Mount the panels (see Section12.3.1.2, page164).
10.5.4 Checking the Fuses/Disconnection Blades
Danger to life due to electric shock or electric arc if live components are touched
If the MVPowerStation and its devices are not correctly disconnected, dangerous voltages may be present in the
components which, if touched, will result in death or serious injury.
• Disconnect the MVPowerStation (see Section7.6, page101).
• After switching off the inverter, wait at least 15minutes before opening it to allow the capacitors to discharge
completely.
• Ensure that the MVPowerStation and its devices are voltage-free.
Procedure:
1. Check the fuses/disconnection blades and tension springs for any discoloration or change in appearance.
If they are discolored or changed in any way, replace them.
2. Check insulation and terminals for any discoloration or change in appearance.
If insulation and terminals are discolored or changed, contact us (see Section17 "Contact", page256).
10.5.5 Checking the Bolted Connections of the Power Cabling
Danger to life due to electric shock or electric arc if live components are touched
If the MVPowerStation and its devices are not correctly disconnected, dangerous voltages may be present in the
components which, if touched, will result in death or serious injury.
• Disconnect the MVPowerStation (see Section7.6, page101).
• After switching off the inverter, wait at least 15minutes before opening it to allow the capacitors to discharge
completely.
• Ensure that the MVPowerStation and its devices are voltage-free.
10 Maintenance
SMA Solar Technology AG
System Manual 147MVPS22JP-SH-en-11