ABB ACS880-87CC Hardware Manual page 69

Wind turbine converters
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4. When shielded cable is used:
• Lead the cables into the inside of the cubicle. Ground a shielded cable 360° at the
lead-through with an EMC cable gland (to be supplied by the customer).
• Connect the cables as follows:
• Cut the cables to suitable length. Strip the cables and conductors. Fasten the cable
lugs to the conductor ends.
• Twist the cable shields into bundles and connect to the cabinet PE (ground) busbar.
Connect any separate ground conductors or cables to the cabinet PE (ground)
busbar.
• Connect the phase conductors to terminals U2, V2 and W2. See the connection
diagram above. Tighten the phase conductors and PE to 120 N·m (89 lbf·ft) torque.
When single-core cables without metal shield are used:
• Lead the cables into the inside of the cubicle through the IP sealing glands.
• Connect the phase conductors to terminals U2, V2 and W2, and the PE conductors
to the PE terminal. Tighten the phase and PE conductors. For the tightening torques,
see the technical data.
5. Provide support for the cables whenever necessary.
6. Clean the cover on top of the converter modules by eg. vacuum cleaning. Then remove
the cover.
WARNING!
The cover on top of the converter modules can cause overheating.
Injury or death, or damage to the equipment can occur.
7. Refit the shroud removed earlier and close the door.
8. Connect the generator end of the cable. For minimum radio frequency interference and
generator bearing current, ground the cable shield 360° at the lead-through of the
generator terminal box. For the generator specific instructions, see the manufacturer's
user manual.
Cable shield grounding means at the generator end
8
360° grounding of the shield
Electrical installation 69
11

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