Table of Contents
Advertisement
108 Technical data
Definitions
Generator-side converter ratings
U
Nominal voltage (see also section
N
P
Typical generator power. The power ratings apply at nominal voltage 690 V.
gen
I
Continuous rms current of the generator-side converter
2
Grid-side converter ratings
P
Rated grid-side converter power. The power ratings apply at nominal voltage 690 V.
grid
I
Continuous rms current of the grid-side converter
1
S
Apparent power
n
Cos phi
Controllable cos phi with full rated power capacity. Range: -value...+value.
Derating
The load capacity (current and power) decreases if the installation site altitude exceeds
1000 meters (3281 ft), or if the ambient temperature exceeds 45 °C (113 °F).
Temperature derating
In the temperature range +45 °C (+113 °F) ... +55 °C (+131 °F), the rated output current is
decreased by 2.5 % for every additional 1 °C (1.8 °F). The output current is calculated by
multiplying the current given in the rating table by the derating factor.
Example If the ambient temperature is 55 °C (+131 °F), the derating factor is
%
100% - 2.5
· 10 °C = 75% or 0.75. The output current is then 0.75 · I
°C
Altitude derating
At altitudes from 1000 ... 2000 m (3281 ... 6562 ft) above sea level, the derating is 0.5%
for every 100 m (328 ft). Derating is allowed only on maximum continuous current for grid
and generator. If the installation site is situated higher than 2000 m (6562 ft) above sea
level, contact ABB.
Alternatively the derating can be handled with cooling liquid temperature derating. 1 °C for
every 100 m. This means that in eg, 2000 m installation, the maximum liquid temperature
is 40 °C (instead of 50 °C) instead of 5% current derating.
Type equivalence table
Converter type
ACS880-87LC-
U
= 690 V
N
4000A/4021A-7
4000A/4132A-7
Grid specification
Construction type
Generator-side converter modules +
Grid-side converter modules+ LCL
5×R9iLC + 5×R9iLC + 1×LCL
5×R9iLC + 6×R9iLC + 1×LCL
on page 111)
gen
Basic module type (R9iLC)
Generator-side
converter
ACS880-104LC-
... (+E205)
-0860A-7
-0860A-7
.
Grid-side
converter
ACS880-104LC-
... (+E205)
-0800A-7
-0800A-7
3AXD10000011539
Advertisement
Table of Contents
