
Installation Instruction
23.1.07
Panda_12mini_PMS_Digital_s00865_Installation manual.V02 - Chapter D: Installation Instruction Page 75
A 3-way cam-type switch should be used. This switch basic positions:
"Shore power" - "OFF" - "Generator". If an (DC-AC) inverter is used, a
fourth position will be required.
0. OFF
I. Generator
II. Shore power connection
III. Inverter
Fig. D.33: Selector switch
The cam-type switch must have
2 poles
, so that "MP" and "phase" can be switched off.
If a 3-phase current system is also installed with the option of supplying from either the generator
or shore power, an
additional
switch must be installed to keep these systems separate.
An alternative to a manual rotating switch is an automatic power relay. When the generator is not
running, the relay remains in the shore power position. As soon as the generator is running, the
power relay switches automatically to the generator position.
If the system has both single and 3-phase AC, it is CRITICAL that the two systems remain
SEPARATE!
Electrical fuses
It is absolutely essential that the electrical system installation is inspected by a qualified electrical
technician. The generator should have its own AC
input electrical fuses
. The fuses should be
sized such that the rated current of the generator on each of the individual phases is not excee-
ded by more than 25%.
Data for gensets with power output greater than 30kW on request!
The fuses must be of the slow type. A 3-way motor protection switch must be installed to protect
the electrical motor.
Required fuses see
Table 3, “Rated current,” on page V.
Required cable cross-sections
The following recommended electrical cable dimensions (cross sections) are the minimum requi-
red sizes for a safe installation.
(see Table 4, “Cable cross-section,” on page V)