1. Protection systems and plans
1.1 The need for back-up
Correct elimination of a fault requires protection of the structure concerned:
capable, by its principle, of correctly identifying the fault ;
in working order.
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The first criterion involves the protection's intrinsic ability to detect and correctly locate a fault.
It should be remembered that the behavior of a protection device in the presence of a fault is the result of compromises that have necessarily been made during its design: measurement principles, organization of processing and decision logic, etc. It is therefore impossible to guarantee that a given protection device will operate correctly...
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Protection systems and plans
Protection and telecommunications
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