Application of Grounding Technology for Secondary System of Substation Relay Protection
This article mainly explores the application of equipotential grounding technology and shielding layer technology for secondary cables in the secondary protection system of substations.In the equipotential grounding of the secondary system,the key points of equipotential grounding for hardware such as outdoor terminal boxes,indoor protective screen cabinets,and AC secondary circuits are emphasized;In the installation of shielding layer in secondary cables,the grounding method of cable shielding layer at both ends is emphasized.By applying equipotential grounding and shielding technology,the anti-interference ability of the secondary relay protection system in the substation has been effectively improved,which is positively helpful in ensuring the stable operation of the entire substation system.
substationrelay protectionequipotential grounding gridgrounding of shielding layersecondary equipment
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维普
