Weq CTW900, Руководство пользователя

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Installation and Connection
CTW900 | 41
Table 5.1 – Recommended Wiring for Power and Grounding Connection, as per NBR 5410
Armature Input
Connection (R/S/T)
Armature Output
Connection (A1/B2)
Model
CTW900
Cables
[mm
2
]
Busbars
[mm x mm]
Cables
[mm
2
]
Busbars
[mm x mm]
Field
Wiring
[mm
2
]
Grounding Wiring
(PE)
[mm
2
]
20A 4 12 x 2 4 12 x 2 1.0 4
50A 10 12 x 2 10 12 x 2 1.0 10
90A 25 12 x 2 25 12 x 2 1.0 16
125A 35 12 x 2 35 12 x 2 1.0 16
180A 70 20 x 3 70 20 x 3 2.5 35
260A 95 20 x 3 95 20 x 3 2.5 50
480A 2 x 95 30 x 5 2 x 120 30 x 10 4.0 95
640A 2 x 150 30 x 5 3 x 120 30 x 10 4.0 150
1000A 3 x 185 30 x 10 4 x 150 40 x 10 4.0 185
1500A 4 x 240 80 x 10 5 x 185 80 x 10 4.0 2 x 240
2000A 5 x 240 100 x 10 6 x 240 100 x 10 4.0 2 x 240
NOTE!
The values of Table 5.1 are only valid in the following conditions:
■
copper cables with PVC 70°C insulation or
■
silver or bare copper busbars and with rounded edges of 1-mm radius;
■
maximum ambient temperature of 40°C;
■
installation in vertical or horizontal perforated channels;
■
arrangement of the cables in a single layer.
For installation in other conditions, refer to NBR 5410.
NOTE!
The converter output wiring (A1/B2) must be installed separately from the line input wiring (R/S/T),
as well as from the control and signal wiring.
5.3.4 Protection Fuses
In order to protect the product against short circuit, ultra fast fuses must be used at the converter input,
dimensioned according to the current and to the maximum of the power I
2
t semiconductors.
For Antiparallel converters (4-Q), it is also necessary to install fuses at the converter output (A1/B2), as shown in
Figure 5.6.
Figure 5.6 – Configuration of the elements for the protection of the armature circuit of the CTW900
CTW900
U nidirectional
(1-Q)
M
CTW900
A ntiparallel
(4-Q)
M
fuses fuses
fuses
R S T R S T
A1
B2 A1
B2