Identifying The Grounding System Of The Electrical Power Network - ABB ACS580 Series Hardware Manual

Note:
• ABB does not guarantee the EMC category because the EMC filter screws have
been disconnected.
• ABB does not guarantee the functioning of the ground leakage detector built
inside the drive.
• In large systems the residual current device can trip without a real reason.
￭

Identifying the grounding system of the electrical power network

WARNING!
Only a qualified electrical professional may do the work instructed in this
section. Depending on the installation site, the work may even be categorized
as live working. Continue only if you are an electrical professional certified
for the work. Obey the local regulations. If you ignore them, injury or death
can occur.
To identify the grounding system, examine the supply transformer connection.
See the applicable electrical diagrams of the building. If that is not possible,
measure these voltages at the distribution board, and use the table to define the
grounding system type.
1. input voltage line to line (U
2. input voltage line 1 to ground (U
3. input voltage line 2 to ground (U
4. input voltage line 3 to ground (U
Electrical installation – North America 179
)
L-L
)
L1-G
)
L2-G
).
L3-G