ABB ACS1000i air-cooled, Руководство пользователя

Страница: 52 / 174

03 POWER ELECTRONICS AND CABINET FEATURES
3BHS206977 E01 REV H ACS1000I AIR-COOLED USER MANUAL 52/174
3.4.12.5 Cabinet dimensions and weight
3.4.12.6 Braking resistor cables
The configuration and dimensions of the braking resistors depend on the specific application.
For information, see the “Dimensioning of braking resistors” application note.
3.5 Cabinet design
3.5.1 Mechanical design
The riveted and folded cabinet construction of the drive ensures a strong, flexible and self-
supporting framework. The construction avoids the need for additional skeletal support and
provides effective protection against electromagnetic emissions.
EMC has been achieved by applying a cabinet design consisting of folded, galvanized sheet
metal plates (approximately 2 mm thick) and minimizing the space between the rivets. The
inside walls of the cabinet are not painted, because paint tends to reduce the effectiveness of
metallic bonding which is important for successful EMC.
Accordingly, only the front of the cabinet is painted while all other walls are galvanized.
However, the cabinet can be ordered optionally with the whole of the outside painted. EMC
performance is further enhanced by the use of metal cable ducts.
3.5.2 Additional cabinets
The following cabinets can be added to the drive:
- Motor-operated output disconnector (attached to the left of the drive, 1 in Fig. 3-22)
- Synchronizing bypass unit (attached to the left of the drive)
- Braking chopper unit (attached to the right of the drive)
Length 644 mm
Depth 902 mm
Width 2002 (2070 including lifting eyes)
Height 460 kg
Cable type Shielded
Minimum cross sectional area
70 mm
2
Voltage rating 1/2 of maximum converter DC-link voltage
If a multi-core cable is used, the full DC-link voltage must be taken
into consideration.
Maximum length 50 m