ABB ACS1000i air-cooled, User Manual

Page: 33 / 174

03 POWER ELECTRONICS AND CABINET FEATURES
3BHS206977 E01 REV H ACS1000I AIR-COOLED USER MANUAL 33/174
3.2 Main components of the drive system
Figure 3-2: Block diagrams of the drive
-
Switchgear
: comprises one of the following switches or a combination of them:
• Main circuit breaker (MCB), external to the drive
• Combined input disconnector and grounding switch (option)
• Input contactor (option)
- Integrated converter transformer : the multi-winding converter transformer adapts the line
voltage to the required motor voltage. The protection for the transformer is
always included.
- Drive : For more information, see “3.4 Drive topology” on page 36.
-
Motor
: For more information, see the induction motor specification.
(1) Main circuit breaker (necessary when fused input
contactor (3) is not installed)
(2) Combined input disconnector and grounding
switch (option)
(3) Fused input contactor (option)
(4) Converter transformer
(5) Diode rectifier
(6) Protection IGCTs
(7) DC link
(8) Inverter
(9) Output sine filter
(10)Induction motor
Depending on the switchgear in use, see the following documents for
further information:
- “2.8 Important note - main circuit breaker” on page 25
- Main circuit breaker engineering guideline
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