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Network protection and supervision
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Directional Fault Detectors
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| Aerial directional fault detector |
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Main Characteristics : |
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These directional fault detectors are suited to all neutral earthing methods, and especially to neutral compensated networks (where the ammeter models are not suitable). They work by analysing the changes in current and voltage on the appearance of a fault, showing the position upstream or downstream.
These detectors are available in several versions for aerial and underground networks. They can be used either as a preventive (recording stray faults) or curative (locating continual faults).
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Standards : |
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EDF HN 45-S-51 / HN 45-S-52
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| Underground directional fault detector |
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Additional Features : |
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- When used preventatively, the sensitive parts of the network are highlighted and maintenance operations (reducing the probability of a continual fault occurring) can be easily scheduled.
- When used curatively, they contribute to limiting the reconnection procedures made during the search for the damaged section (placed close to remote controlled procedure components, they transmit information on continual faults to the telecontrol center). In addition, a visual signal allows the fast guidance of the call-out teams.
- In the underground version, an OEM version in the form of an electronic card is included in the MV board remote-control module.
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