MicroHarmony Cell Sizes 40 - 260A Manual
Electrical Description
19001467: Version 1.0
4-3
s
4
4.2 De-ratings
In some cases the cell maximum output current capability must be de-rated in order to keep the maximum junction
temperature below the manufacturer's maximum rating. The following general de-ratings should be applied to all
cells sizes:
Note
: In the event that de-rating factors apply (i.e. 50 °C ambient and fc=1200Hz), calculate the de-rated
output current for each case and select the lowest current rating.
Tamb
≤
45
°
C
No De-Rating (overload and Cap life de-rated)
Tamb>45
°
C
Base Current Rating x (60-K37) / 15)^0.67
Note: Tamb applies to the inlet air temperature of the cell.
This can be higher than the actual room ambient depend-
ing on site conditions.
FASL
≤
3,300ft
No De-Rating
3,300ft
≤
FASL
≤
6,563ft
Base Current Rating x (1-0.005 × (FASL-3,300)/330)
Note: FASL = Feet above sea level
Maximum elevation is 6,563 FASL due to creep and
strike voltage limits. At max elevation, de-rate current
5%
300
≤
fc
<
600Hz
No De-Rating
fc
≥
600Hz
Base Current Rating x (1-((fc - 600) / 600) x 0.20)
Fo > 10Hz,
No De-Rating
Fo
≤
10Hz
Iout (fo) = Base Current Rating x (0.5 + Fo / 20)
Содержание Eupec
Страница 10: ...Safety Precautions and Warnings MicroHarmony Cell Sizes 40 260A Manual viii 19001467 Version 1 0 s ...
Страница 16: ...Cell Overview MicroHarmony Cell Sizes 40 260A Manual 1 6 19001467 Version 1 0 s 1 ...
Страница 36: ...Installation MicroHarmony Cell Sizes 40 260A Manual 3 4 19001467 Version 1 0 s 3 ...
Страница 42: ...Electrical Description MicroHarmony Cell Sizes 40 260A Manual 4 6 19001467 Version 1 0 s 4 ...
Страница 56: ...Repair Hints MicroHarmony Cell Sizes 40 260A Manual 8 4 19001467 Version 1 0 s 8 ...
Страница 76: ...Drive Calc Express MicroHarmony Cell Sizes 40 260A Manual 10 2 19001467 Version 1 0 s 10 ...
Страница 86: ...Communication Protocol MicroHarmony Cell Sizes 40 260A Manual 11 10 19001467 Version 1 0 s 11 ...
Страница 87: ...MicroHarmony Cell Sizes 40 260A Manual NOTES 19001467 Version 1 0 N 1 s NOTES ...
Страница 88: ...NOTES MicroHarmony Cell Sizes 40 260A Manual N 2 19001467 Version 1 0 s ...
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