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112 Technical data
Generator connection data
BCU control unit
Control units of the converter
Efficiency
96.5% at nominal load with power factor 1.0 at 690 V.
Degree of protection
The converter is labeled as IP54, IP2x with cubicle doors open.
Some customer variants may be different, eg, the LCL filter cubicle, converter module
cubicles and auxiliary control cubicle: IP54. Main breaker cubicle: IP21. In this case, the
converter is labeled as IP21.
Environmental and corrosion classification
The expected lifetime for the converter cabinet enclosure is considered to be at least 20
years under the following environmental classifications and corrosion class.
Notes
:
1)
Condensation and/or formation of ice inside the converter cabinet is not allowed in any operational
circumstances.
2)
ABB additional extension to ambient surrounding temperature, outside the cabinet, -30 °C … 55 °C
(-22 °F … 131 °F). See also section
.
3)
L denotes service life >15 years.
Disclaimer
The customer shall ensure that the environmental conditions inside the wind turbine is maintained in order to
fulfill the environmental classifications and/or corrosion class, as herein stated. If the operational condition is
out of any environmental classifications and/or corrosion class, the expected lifetime of the converter may be
Generator types
AC induction generators, permanent magnet generators
Voltage (
U
2
)
0 … 110%
U
1
, 3-phase symmetrical,
U
max
750 V
Output frequency (
f
2
)
8…200 Hz
Switching frequency
2 kHz (average)
Frequency resolution
0.01 Hz
Current
See section
on page
Field weakening point
8 … 300 Hz
Environmental classifications in accordance with IEC60721-3-3
• Climatic conditions
3K5
1)
• Special climatic conditions
3Z11
2)
• Chemically active substances
3C2
• Mechanically active substances
3S2
• Mechanical conditions
3M1
Corrosion class in accordance with 12944-1
• Corrosion class for the cabinet enclosure (painted surfaces,
pre-treatment FeP, polyester powder paint thickness 80 µm)
C3L
3)
Summary of Contents for ACS880-87LC-4000A/4021A-7
Page 4: ......
Page 10: ...10 ...
Page 17: ...Safety instructions 17 1 3 2 4 5 6 7 ...
Page 18: ...18 Safety instructions 8 9 ...
Page 28: ...28 Introduction to the manual ...
Page 52: ...52 Mechanical installation ...
Page 66: ...66 Planning the electrical installation ...
Page 74: ...74 Electrical installation Diagrams for the customer connections are presented below ...
Page 75: ...Electrical installation 75 optional Fast shutdown ...
Page 85: ...Maintenance 85 b c a Air flow direction 2 3 4 6 ...
Page 87: ...Maintenance 87 2 5 4 ...
Page 88: ...88 Maintenance 7 Arrow indicating the air flow direction 5 6 6 ...
Page 90: ...90 Maintenance Air flow circulation b a ...
Page 106: ...106 Maintenance ...
Page 124: ...124 Control units of the converter ...
Page 126: ...126 Dimension drawings ...
Page 127: ...Dimension drawings 127 ...
Page 128: ...128 Dimension drawings ...
Page 142: ...142 Cooling and heating ...