Checking The Fuses/Disconnection Blades; Checking The Bolted Connections Of The Power Cabling - SMA MEDIUM VOLTAGE POWER STATION 500SC-JP System Manual

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SMA Solar Technology AG

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).