Neutral Wire; Generally; Generator Disposal After Lifetime Expiration - Siemens 1D Series Operating Manual

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8 Neutral wire

8.1 Generally

In the course of parallel operation of generators amongst themselves or with the line, differential currents can
appear as the result of distribution harmonic oscillation of 3rd order. Differential currents are added to phase
currents and can result in inadmissible raise of temperature of generators. Neutral current must not exceed
50% of nominal current. If currents are higher, it is necessary to adopt suitable remedies concerning limitation
e.g. current limiting choke.

9 Generator disposal after lifetime expiration

After expiration of the generator lifetime it is user's responsibility to dispose it ecologically. It is recommended
to use the service of an authorized company.
It is necessary to disassemble the generator and separate individual materials.
The machine disposal may produce environment-demanding waste, such as grease or insulation material
remaining.
For machine ecological disposal including unexpended parts of the machine (e.g. packing materials - plastic,
wood, metal) obey the legal regulations in force in particular country.
page 41/42
Product documentation 1D 3.8.en
Rev. E, 10/13