SMA TCS 500SC-JP - Manual (Page 28)

7 Electrical Connection SMA Solar Technology AG
28 TCS-JP-IA-en-10 Installation Manual
Procedure:
1. Install the ground electrodes in accordance with the applicable regulations.
2. Ensure that the required grounding resistance is achieved.
3. Clean the contact surfaces (see Section 7.5, page 25).
4. Mount the grounding cable to the grounding busbar using screw, nut and washers.
5. Tighten the bolted connection at the grounding connection (torque: 12 Nm).
6. Check that the grounding cable is correctly connected.
7. Connect the grounding cables to the grounding busbar.
8. Connect the grounding cables to the ground electrode.
7.6.2 Grounding the High-Voltage Transformer
Figure 15: Position of the grounding bolt on the high-voltage transformer
Procedure:
1. Clean the contact surfaces (see Section 7.5, page 25).
2. Connect the grounding cable to the grounding bolt of the high-voltage transformer with screw and washers
(torque: 37 Nm).
3. Check that the grounding cable is correctly connected.
Position Designation
A Screw
B Spring washer
C Fender washer
D Grounding cable