Salicru BM-R 3, Руководство пользователя

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8
SALICRU
5. DESCRIPTION.
•
The manual bypass is an option which allows feeding the
load or loads either from an equipment - UPS or stabilizer-,
or from commercial mains directly without breaking the
power supply during its switching manoeuvring, because it
is make before break type, unless it is used in a wrong way
without respecting the stated procedure in section 7.
•
In correlation with Fig. 1 and 2, Fig 3 and 4 illustrations
show the single line diagrams of both structures.
The structure is identical in both figures, although there
are some differences between models. The most important
one is the auxiliary contact from the manual bypass switch,
which comes from a microswitch located in the back side of
the protection cover and connected to a signal connector in-
ternally. By means of the electrical connection with the sup-
plied cable between this connector and the one available in
several equipments like the UPS from TWIN PRO2 and/or
RT2 series, when the protecting cover from manual bypass
is removed, the UPS shifts from «Inverter output mode» to
«Static bypass mode», considering that the system was
on normal mode operating previously. Therefore, it makes
easier the operating and avoids possible wrong manoeu-
vring that it could cause serious damages to the installation
set, loads included.
UPS / STABILIZER
RACK MANUAL BYPASS 16 A
3 IEC
AC input mains to
manual bypass
3 IEC
1 IEC
Equipment IEC
input power supply
connector
Equipment
IEC output
Output to
loads
To
equipment
input
From equipment output
Fig. 3. Wiring between the UPS and the 3 kVA bypass.
UPS / STABILIZER
RACK MANUAL BYPASS 40 /
63 A
Output
terminals to
loads
AC input power
suplpy
EMBS connector
To
equipment
input
From equipment output
Equipment input
terminals
Output
terminals
to loads
Fig. 4. Wiring between UPS and 6 and 10 kVA bypass.