![](/assets/images/picto-drapeau-france-3a76576a5d60a512053b4612ab58dae5.png)
3. Nature of ground faults, neutral systems and protection
The form that a ground fault takes depends on a number of factors. For example, the behavior of air or synthetic insulation is different (air regenerates fairly quickly, synthetic insulation hardly ever); another example is that a contact may be rigid or temporary (a wire may fall to the ground and a wire may touch vegetation in a rocking movement); finally, a contact may be frank or resistant (a conductor touches an earthed metallic mass and a conductor is in contact with vegetation). Nevertheless, it is possible to define three main categories of earth fault applicable to these different cases:
stable faults: these are faults at mains frequency whose resistance does not exceed one or two hundred ohms;
Resistive faults: these are faults which are stable at the mains frequency and whose resistance is greater...
Exclusive to subscribers. 97% yet to be discovered!
You do not have access to this resource.
Click here to request your free trial access!
Already subscribed? Log in!
![](/assets/images/logo-eti-286623ed91fa802ce039246e516e5852.png)
The Ultimate Scientific and Technical Reference
This article is included in
Electricity networks and applications
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Nature of ground faults, neutral systems and protection
Bibliography
- (1) - WILLHEM (R.), WATERS (M.) - Neutral grounding in high voltage transmission. - Elsevier publishing company.
Also in our database
Standards and norms
- Technical decree – Technical requirements for electrical power distribution - UTE C11-001 -
- Postes de livraison établis à l'intérieur d'un bâtiment et alimentés par un réseau de distribution publique HTA (jusqu'à 33 kV) - NF C13-100 -
- Installations électriques à haute tension pour les sites de production d'énergie électrique, les sites industriels, tertiaires et agricoles - NF C13-200 -
- Effects...
Exclusive to subscribers. 97% yet to be discovered!
You do not have access to this resource.
Click here to request your free trial access!
Already subscribed? Log in!
![](/assets/images/logo-eti-286623ed91fa802ce039246e516e5852.png)
The Ultimate Scientific and Technical Reference