Synchronous Generators BG 132 and BG 160

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Synchronous Generators BG 132 / BG 160 Chapter 4: 4.8 Electrical connection of the generators 4.8 Electrical connection of the generators Prior to installation, read and understand the safety precautions in section 4.1 as well as the connection notes in this section 4.8 and observe the instructions and information given there. This section is only applicable for generators which are not equipped with a control box ex works. Work on electrical installations and equipment may only be performed by adequately trained qualified personnel and in conformity with the applicable national rules and regulations (in Germany: VDE regulations, among others). DANGER Work on electrical installations and equipment may only be performed in the off and de-energized state. Mortal danger by electric shock! Engines that have been turned off must be secured against accidental restarting (e.g. by removing the ignition key and keeping it safe)! Grounding the neutral conductor of the generator (N, midpoint conductor) supersedes the protective measure "protection separation" and should therefore be avoided. If the neutral conductor N shall be grounded anyway, this may only be performed by an electrically qualified person. In this case, a current-operated earth-leakage circuit breaker has to be connected on the load side of the generator output. The efficiency of the electrical protective measure has to be confirmed by an appropriate measurement. 4.8.1 General If the generator is not equipped with a control box ex works, adequate fuse equipment has to be installed in an external control cabinet to protect the connected circuits (sockets): • Short-circuit tripping: characteristic "B" • Protection against overcurrent: according to nominal current • The neutral conductor has also to be fused. 70 Issue date: August 2002
Synchronous Generators BG 132 / BG 160 Chapter 4: 4.8 Electrical connection of the generators 4.8.2 Version with terminal box Observe the following connection notes when connecting generators equipped with a terminal box: • When opening the terminal box, be careful not to tear-off or damage the connecting wires of the generator governor installed in the cover. • After opening the terminal box, remove the plug-and-socket connector to the generator governor installed in the terminal box cover. The plug-and-socket connector is mechanically coded and thus can not be plugged-in twisted. Plug-in the connector only immediately before closing the cover. • For leading cables into the terminal box only use appropriate waterproof IP54 cable glands. • Lay the connecting wires inside the terminal box with utmost care. • When closing the cover, be careful not to catch or squeeze any connecting wires. Figure 25 Pin assignment of the connection terminal plate in the terminal box Issue date: August 2002 71
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Synchronous Generators BG 132 and BG 160

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