PRELIMINARY
61
S
EPARATE
B
YPASS
I
NPUT
(
OPTIONAL
)
THE
“
DI”
(OPTIONAL) VERSION OF THE UPS SERIES HAS SEPARATE BYPASS AND INPUT LINES.
The UPS series with separate Bypass ensures a separate connection between the input and bypass lines.
The UPS output is synchronised with the bypass line so as to safeguard against incorrect voltage changeovers in the alternate
phases, in the event of automatic bypass or closing of the maintenance switch (SWMB).
A
DDITIONAL
I
NTERNAL
B
ATTERY
C
HARGERS
(
OPTIONAL
)
THE
“
AC”
(OPTIONAL) VERSION OF THE UPS SERIES DIFFERS FROM THE STANDARD VERSION IN THAT SOME
ADDITIONAL BATTERY CHARGERS ARE USED INSTEAD OF THE BATTERIES.
This series of UPS must be used together with an external Battery Box and is suitable for applications requiring long back-up
times.
NOTE:
A separate bypass line is supplied on this UPS version.
The additional internal battery charger cards are powered directly on mains power and have pseudo-sinusoidal wave form
absorption.
If the input switch is closed but the I/O switch is open (UPS switched off) the battery chargers operate independently.
Open the input switch (SWIN) to totally shutdown the UPS and the additional battery chargers.
AC Version
10 kVA
12 kVA
15 kVA
20 kVA
Nominal voltage
240 + 240 Vdc
Current in addition to that supplied
by the internal battery charger
6A@240Vdc
UPS weight
86kg
88Kg
96Kg
101Kg
PRELIMINARY
62
INSTALLATION
ALL THE OPERATIONS DESCRIBED IN THIS SECTION MUST BE CARRIED OUT EXCLUSIVELY BY
QUALIFIED STAFF.
The Company may no be held liable for any damage caused by incorrect connections or by operations that
are not described in this manual.
S
TORAGE OF THE
UPS
AND THE
B
ATTERY
B
OX
The storage area must have the following characteristics:
Temperature:
0°-40°C (32°-104°F)
Relative humidity:
95% max
P
REPARATION FOR INSTALLATION
P
RELIMINARY INFORMATION
UPS Models
10 kVA
12 kVA
15 kVA
20 kVA
Nominal power
10000 VA
12000 VA
15000 VA
20000 VA
Operating temperature
0 - 40 °C
Max. relative humidity during operation
90% (non-condensing)
Max. installation height
1000 m at nominal power rating
(-1% Power for every 100 m over 1000 m)
max 4000 m
Dimension W x D x H
320 x 840 x 930 mm
Weight (with batteries)
180 Kg
182 Kg
190 Kg
195 Kg
Dissipated power with nominal resistive
load (pf=0.8) and with back up battery *
0.56 kW
480 kcal/h
1910 B.T.U./h
0.670 kW
580 kcal/h
2290 B.T.U./h
0.765 kW
660 kcal/h
2610 B.T.U./h
1.02 kW
880 kcal/h
3480 B.T.U./h
Dissipated power with nominal distorting
load (pf=0.7) and with charged battery *
0.49 kW
420 kcal/h
1660 B.T.U./h
0.58 kW
500 kcal/h
1990 B.T.U./h
0.670 kW
580 kcal/h
2290 B.T.U./h
0.90 kW
775 kcal/h
3070 B.T.U./h
Fan capacity at installation premises for
heat dissipation **
300 mc/h
355 mc/h
410 mc/h
545 mc/h
Current dispersed to earth ***
< 7 mA
Protection level
IP20
Cable input
From base / on rear
*
3.97 B.T.U./h = 1 kcal/h
**
The following formula can be used to calculate the fan capacity: Q [mc/h] = 3.1 x Pdiss [kcal/h] / (ta - te) [°C]
Pdiss is the dissipated power of all the installed apparatus at the installation premises expressed in kcal/h.
ta= environmental temperature, te= external temperature. To account for leaks, increase the value obtained by 10%.
The table shows an example of the fan capacity with (ta - te)=5°C and with nominal resistive load (pf=0.8).
(N.B.: The formula applies if ta>te; otherwise an air conditioner should be installed).
***
The dispersion current of the load is added to the dispersion current of the UPS on the earth protection conductor.