Grounding is one of the most important technological methods used to protect against an electrical shock.
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| Grounding system for Electrical Networks |
Introduction
Reliable protection of power supply objects from various types of over-voltage requires the creation of an effective system for grounding electrical installations and equalizing the potentials on them. This study work is devoted to systems of grounding of elements of city distributive networks. In these networks, recently there have been increasing trends to the separation of protective and zero conductors, this transition makes it possible to protect against impulse overvoltages, as well as it is more reliable in terms of electrical safety. In addition to the grounding and equalizing the potentials, significant influence is given to protective devices whose switching circuits depend on the mode of operation of the neutrals. We consider in more detail the earthing methods of urban distribution networks of 0.4 kV and supply substation 10/0.4 kV.
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