PCS100 UPS-I
User Manual
47
1.
PCS100 UPS-I model selection
Based on application load requirements and PCS100 UPS-I Ultracapacitor model tables, the closest larger
kVA rating PCS100 UPS-I model can be selected.
Ra
te
d
po
w
er
kVA
@ 4
00
V
Ra
te
d
po
w
er
kVA
@ 380
V
A
ut
onomy
t
im
e
Sec (
Ra
te
d k
VA
@ 0
.8PF)
A
ut
onomy
t
im
e
Sec (
Ra
te
d k
VA
@ 1
.0
PF
)
Inve
rt
er
Ra
te
d
C
ur
re
nt
[
A]
Inve
rt
er
s
[
Q
ua
ntity
]
Util
it
y Di
sc
onn
ec
t Ra
te
d
C
ur
re
nt
A
Te
rmi
nal P
os
it
io
n
(U
tility &
Lo
ad
)
Lo
ss
es
[
kW
(ty
pic
al
)]
Ef
fi
ci
ency
[%
(ty
pic
al
)]
A
ir
fl
ow
[
(m
3
/m
in
) Sta
nd
by
]
Fa
ul
t C
apa
ci
ty
(lc
w
) k
A
/
Wi
ths
ta
nd P
er
io
d
ms
Frame Size
Type Code
PC
S10
0 UP
S-
I
Ene
rg
y St
or
age
600 570
3
2 866 4 900 L 5.9 99.0 27 25 / 10 1xB 1xC 1xA PCS100-12-400/50-04-
L-EC02
2.
Application active load calculation
First it is necessary to determine the kW rating of the load.
Either take the load kW if known, or multiply the load kVA by the
Power Factor to determine the Load kW.
Load kW calculation
Load kW
500 kVA x 0.9 450 kW
3.
Energy storage rating determination
In this step it is necessary to determine number of
Ultracapacitor strings required.
Ultracapacitor energy storage is based on the number of parallel
connected Ultracapacitor strings as defined in the PCS100 UPS-I
Type code (ECxx: where xx defines number of parallel connected
Ultracapacitor strings). Storage rating is determined by
multiplication of number of strings l by 300 kW.
In selected model with Type code PCS100-12-400/50-04-L-EC02
there are 2 Ultracapacitor strings.
Energy storage rating
Energy storage
rating
300 kW x 2
600 kW
4.
Relative loading calculation
Relative Loading can now be calculated by dividing the Load kW
by the Storage Rating.
Relative loading calculation
Relative loading 450 kW / 600
kW
75%
5.
Autonomy determination
The actual autonomy for the selected PCS100 UPS-I model,
under the given operating conditions, is being determined from
reading the information on Storage Loading vs. Autonomy
Period graph.
For this example, autonomy can now be found by moving across
from the calculated relative loading point (75%) on the Y-axis
and reading the autonomy period from the intersection with the
curves.
Autonomy period at 75% relative loading
New
3.6 s
After 5 years
3.2 s
After 10 years
2.8 s
After 15 years
2.1 s