WEG MVW3000 A0040 V023, Руководство пользователя

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6-10 | MVW3000
6
Installation, Connection and Energization
Figure 6.7:
Details of the power arm supply and fiber optic cables installation stages
ATTENTION!
The fiber optic cables must be handled with care so as the material is not crushed, bent or cut. In
order to insert or remove the cables, exert force on the connectors only, never on the fiber.
NOTE!
In order to extract the power cells, follow the procedures described in the previous sections in the
reverse order. Remove the optic cable before removing the cell.
6.2 ELECTRICAL INSTALLATION
6.2.1 Power Section
The power cables that connect the grid input to the MVW3000 and those that connect the inverter panel to the
medium voltage motor (
Figure 6.11 on page 6-14 ) must be specific for medium voltage applications and sized
for the rated currents.
Table 6.3: Maximum current to the power cables
Power Cables mm
2
[in]:
R, S, T, U, V, W
Maximum
Current
[A]
Si
ng
le
C
able
10 [0.39] 71
16 [0.62] 96
25 [0.98] 126
35 [1.37] 157
50 [1.96] 189
70 [2.75] 241
Table 6.4: Recommended power cables cross section (copper) [in]
Gauge of the Power Cables
(S Cross Section) mm
2
[in]
Minimun Gauge of the Grounding Cables
(S Cross Section) (PE) mm
2
[in]
S ≤ 16 [0.62] S
16 [0.62] < S ≤ 35 [1.37] 16 [0.62]
35 [1.37] < S S / 2
NOTE!
The cable cross sections/gauges presented in the Table 6.3 on page 6-10 and Table 6.4 on page
6-10 are only orientative. In order to size the cables correctly the installation conditions, the applicable
standards and regulations, and the maximum allowed voltage drop must be considered.