8
CFW-11M RB |8-3
Technical Specifications
Note:
(1)
Steady-state rated current in the following conditions:
-
Surrounding air temperature: -10 °C to 45 °C (14 °F to 113 °F). The converter is capable of operating with an maximum surrounding
air temperature of 55 °C (131 °F) if an output current derating of 2 % is applied for each ºC (or 1.11 % each °F) above 45 °C (113 °F).
-
Relative air humidity: 5 % to 90 % non-condensing.
-
Altitude: 1000 m (3.300 ft). Above 1000 m (3.300 ft) up to 4000 m (13.200 ft) the output current shall be derated by 1 % for each
100 m (or 0.3 % each 100 ft) above 1000 m (3.300 ft).
-
From 2000 m to 4000 m (6.600 ft to 13.200) - 1.1 % of maximum voltage derating for each 100 m (or 0.33 % each 100 ft) above
2000 m (6.600 ft) up to 4000 m (13.200 ft) maximum altitude.
-
Ambient with pollution degree 2 (according to EN50178 and UL508C).
(2)
Nominal current in permanent regimen at the following conditions:
-
Temperature around the converter: -10 °C to 40 °C (14 °F to 104 °F). The converter is able to operate in environments with temperatures
up to 55 °C (131 °F), if a reduction of 2 % in the output current is applied for each Celsius degree (or 1.11 % each °F) above 40 °C
(104 °F).
-
Relative humidity: 5 % to 90 % without condensation.
-
Altitude: 1000 m (3.300 ft). Above 1000 m up to 4000 m (3.300 ft to 13.200 ft) the output current must be reduced in 1% for each
100 m (or 0.3 % each 100 ft) above 1000 m (3.300 ft).
-
From 2000 m to 4000 m (6.600 ft to 13.200) - 1.1 % of maximum voltage derating for each 100 m (or 0.33 % each 100 ft) above
2000 m (6.600 ft) up to 4000 m (13.200 ft) maximum altitude.
-
Environment with pollution degree 2 (according to EN50178 and UL508C).
(3)
Table 8.1 presents only two points of the overload curve (activation time of 1 min and 3 s). The complete information about the IGBTs
overload for Normal and Heavy Duty Cycles is presented below.
2.0
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0
10 20 30 40 50 60 70 80 90 100 110 120
I
o
I
RAT ND
Δ t (s)
(a) IGBTs overload curve for the Normal Duty (ND) cycle
2.0
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
0 10 20 30 40 50 60 70 80 90 100 110 120
I
o
I
RAT HD
Δ t (s)
(b) IGBTs overload curve for the Heavy Duty (HD) cycle
Figure 8.1 -
(a) and (b) Overload curves for the IGBTs
(4)
The information provided about the converter losses is valid for the rated operating condition, i.e., for rated output current and rated
switching frequency.
