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Chapter 3 Mechanical and Electrical Installation
3.3 Electrical Installation
3.3.1 Precautions Before Electrical Installation
1)
The input and output high voltage cables must be subjected to rigorous voltage resistance
testing.
2)
Input and output cables must be wired separately to prevent dangerous damage to the insulation.
3)
The signal line from the site to the AC drive device should be wired separately from the strong
electrical wiring, and the signal line must be stranded, preferably with a shielded line, with one
end of the shield reliably grounded.
4)
Always ensure that the frequency converter cabinet is reliably connected to the plant ground
to ensure personal safety.
5)
When the equipment is installed electrically, a special grounding pole should be laid for the
control system, requiring an ground resistance of not more than 2 ohms.
6)
Before measuring the insulation resistance of the transformer and conducting the frequency
withstand voltage test, the transformer and the power unit must be disconnected.
3.3.2 Diagram of The Position of The Outlet Hole of The Complete
Machine
In/Out line note:
1)
Confirm the location of the respective inlet holes for the high voltage and low voltage power
cables, and the low voltage control cables;
ACH200 Series High Voltage Variable Frequency Speed Control System Operating Manual
Figure.3-9
33
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