Baumuller BM4400 - Correction Factors if the Operating Conditions Are Changed; Mounting Height

Operating requirements
Instruction handbook b maXX BM4400, BM4600, BM4700
Document No.: 5.12008.07 Baumüller Nürnberg GmbH
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of 358
3.3
3.3.5 Correction factors if the operating conditions are changed
If the devices BM4400, BM4600, BM4700 are operated at operating conditions, which
lead to different correction factors, then all correction factors must be considered by mul-
tiplying them simultaneously to calculate the output power and the output current.
The following correction factors are to be considered if nothing other is specified at the
„Technical data“ of the device:
3.3.5.1 Mounting height
If the devices BM4400, BM4600, BM4700 are operated above an absolute altitude of
1000 m, then the output power must be reduced against the rated power according to the
following curve.
Figure 24: Reducing of the output power in dependence of the absolute altitude
Output power
Rated power
Mounting height
0%
20%
40%
60%
80%
100%
120%
0m 1.000m 2.000m 3.000m 4.000m 5.000m
NOTE!
Baumüller devices, which are provided for the operation at grounded delta systems
or IT supply systems, may have an operating altitude of 2000 m at these systems,
only. If the altitude is higher than 2000 m to 4000 m these devices must be operated
at TN systems and TT systems. Such systems, e. g. can be achieved by using an iso-
lating transformer with a secondary-sided star point.