Objectives |
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17.1 Introduction17.2 Vendor commitments17.3 Availability of spares on site17.4 Use of standardized communication17.5 Use of standardized system description language17.6 Functional specification17.7 References
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Substations are
living very long, and although their secondary system might be exchanged
two or three times during the substation life time, its life time remains
in the order of 10 to 15 years. During this time, the SA system has
to be maintained. This means as a minimum the replacement of failed parts,
and very often also an of the extension of the system either by new bays
or new functions is required.
In view of the fast changing technology, the user is advised to elaborate a strategy how to cope with the situation. This chapter explains what kind of strategies could be established.
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