Illustration 5.34
Use RCD relays, multiple protective earthing or earthing as
extra protection, provided that local safety regulations are
complied with.
If an earth fault appears, a DC content may develop in the
faulty current.
If RCD relays are used, local regulations must be observed.
Relays must be suitable for protection of 3-phase
equipment with a bridge rectifier and for a brief discharge
on power-up see for further information.
How to Install
VLT
®
Refrigeration Drive Design Guide
MG16G102 - VLT
®
is a registered Danfoss trademark 81
5
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