Drive Overview With Input; Single-Line Diagram Of Direct-To-Line Configuration - ABB ACS2000 AFE 1MVA User Manual

CHAPTER 2 – POWER ELECTRONICS AND CABINET FEATURES
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2.2 Power supply configurations
The drive requires two independent power supplies:
• Main power supply for the power electronic
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References
components
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• Auxiliary power supply for the control and cool-
2-1 Drive overview with
input transformer
ing equipment
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2-2 Single-line diagram of
direct-to-line
2.2.1 Main power supply configurations
configuration
Input transformer
The main power is fed to the drive by the input iso-
lation transformer which adapts the line voltage to
the required voltage for the drive. The input isola-
tion transformer is always part of the drive system.
Two installation solutions are available for the
transformer:
Auxiliary
power supply
Main
power supply
MCB
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2-1
1
Main
power
supply
—
2-2
Control and cooling equipment
Auxiliary
power
distribution
Power electronic components
Input
transformer
IFU
ACS2000
• Integrated
The transformer is placed on the left side of the
drive. The length of the cabinet depends on
drive power. For the integrated configuration, a
dry-type transformer is used.
• Non-integrated
The transformer is external to the drive. The
transformer can either be an oil-immersed or
dry-type device. The distance between drive
and transformer is determined by the maximum
possible cable length for the transformer sec-
ondary cables.
Drives with a non-integrated transformer are
equipped with a common mode choke.
ACS2000
Cooling system
Control system
AFE
DC link INU
M
32
M