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Installation Instructions
Seite/Page 90 Panda PMS 8.000 NE - 42 NE Manual.R05 - Kapitel/Chapter 5: Installation Instructions 22.3.11
5.9.2 Installation AC-Box / distribution panel separate connected
Fig. 5.9.2-1: Installation AC-Box / distribution panel separate connected
A power source selector switch must be installed between the generator (or if applicable, AC-Control box)
and the ship's electrical supply system. This switch must used to ensure that all AC consumers can be swit-
ched off at once. This switch should also be installed to keep the generator and shore (grid) power systems
separate.
Fig. 5.9.2-2: 3-Way Cam Switch
3-Way Cam Switch
A 3-way cam switch should be used. This switch basic positi-
ons: "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
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.
Note: If the system has both single and 3-phase AC, it is CRITICAL that the two systems remain SEPARATE!
Protection conductor
The generator is provided with a PEN safety system, as standard, which connects the 3-phase delta centre point "N"
to the safety ground strap.
If a separate ground protection cable is necessary (i.e. due to national safety regulations), the bridge between the
1
2
3
1. Generator
2. AC-Control Box 3. Distribution panel