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Synchronous Generators BG 132 and BG 160

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<strong>Synchronous</strong> <strong>Generators</strong> <strong>BG</strong> <strong>132</strong> / <strong>BG</strong> <strong>160</strong><br />

Chapter 4: 4.8 Electrical connection of the generators<br />

4.8 Electrical connection of the generators<br />

Prior to installation, read <strong>and</strong> underst<strong>and</strong> the safety precautions in section 4.1<br />

as well as the connection notes in this section 4.8 <strong>and</strong> observe the instructions<br />

<strong>and</strong> information given there.<br />

This section is only applicable for generators which are not equipped with a<br />

control box ex works.<br />

Work on electrical installations <strong>and</strong> equipment may only be<br />

<br />

performed by adequately trained qualified personnel <strong>and</strong> in<br />

conformity with the applicable national rules <strong>and</strong> regulations<br />

(in Germany: VDE regulations, among others).<br />

DANGER<br />

Work on electrical installations <strong>and</strong> equipment may only be<br />

performed in the off <strong>and</strong> de-energized state. Mortal danger by<br />

electric shock!<br />

Engines that have been turned off must be secured against<br />

accidental restarting (e.g. by removing the ignition key <strong>and</strong><br />

keeping it safe)!<br />

Grounding the neutral conductor of the generator (N, midpoint<br />

conductor) supersedes the protective measure "protection<br />

separation" <strong>and</strong> should therefore be avoided. If the neutral<br />

conductor N shall be grounded anyway, this may only be<br />

performed by an electrically qualified person. In this case, a<br />

current-operated earth-leakage circuit breaker has to be<br />

connected on the load side of the generator output. The<br />

efficiency of the electrical protective measure has to be<br />

confirmed by an appropriate measurement.<br />

4.8.1 General<br />

If the generator is not equipped with a control box ex works, adequate fuse<br />

equipment has to be installed in an external control cabinet to protect the<br />

connected circuits (sockets):<br />

• Short-circuit tripping: characteristic "B"<br />

• Protection against overcurrent: according to nominal current<br />

• The neutral conductor has also to be fused.<br />

70 Issue date: August 2002

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