{"id":5223,"date":"2026-06-27T09:47:13","date_gmt":"2026-06-27T01:47:13","guid":{"rendered":"https:\/\/www.clelek.com\/?post_type=blog&#038;p=5223"},"modified":"2026-07-03T09:47:32","modified_gmt":"2026-07-03T01:47:32","slug":"when-do-we-need-to-install-a-high-voltage-earthing-switch","status":"publish","type":"blog","link":"https:\/\/www.clelek.com\/ru\/blog\/when-do-we-need-to-install-a-high-voltage-earthing-switch","title":{"rendered":"When Do We Need to Install a High-Voltage Earthing Switch?"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_76 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u041e\u0433\u043b\u0430\u0432\u043b\u0435\u043d\u0438\u0435<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.clelek.com\/ru\/blog\/when-do-we-need-to-install-a-high-voltage-earthing-switch\/#Introduction\" >\u0412\u0432\u0435\u0434\u0435\u043d\u0438\u0435<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.clelek.com\/ru\/blog\/when-do-we-need-to-install-a-high-voltage-earthing-switch\/#Overview_of_High_Voltage_Grounding_Switch_Foundation\" >Overview of High Voltage Grounding Switch Foundation<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.clelek.com\/ru\/blog\/when-do-we-need-to-install-a-high-voltage-earthing-switch\/#Definitions_and_core_functions\" >Definitions and core functions<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.clelek.com\/ru\/blog\/when-do-we-need-to-install-a-high-voltage-earthing-switch\/#Main_Product_Categories\" >Main Product Categories<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.clelek.com\/ru\/blog\/when-do-we-need-to-install-a-high-voltage-earthing-switch\/#Essential_installation_scenarios_for_grounding_switches\" >Essential installation scenarios for grounding switches<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.clelek.com\/ru\/blog\/when-do-we-need-to-install-a-high-voltage-earthing-switch\/#Daily_Power_Maintenance_Scenario\" >Daily Power Maintenance Scenario<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.clelek.com\/ru\/blog\/when-do-we-need-to-install-a-high-voltage-earthing-switch\/#Outdoor_high-voltage_line_operation_scene\" >Outdoor high-voltage line operation scene<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.clelek.com\/ru\/blog\/when-do-we-need-to-install-a-high-voltage-earthing-switch\/#Emergency_response_scenario_for_equipment_failure\" >Emergency response scenario for equipment failure<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.clelek.com\/ru\/blog\/when-do-we-need-to-install-a-high-voltage-earthing-switch\/#Scenario_of_the_layout_of_substations_and_switch_stations\" >Scenario of the layout of substations and switch stations<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.clelek.com\/ru\/blog\/when-do-we-need-to-install-a-high-voltage-earthing-switch\/#Outdoor_harsh_working_conditions_scenario\" >Outdoor harsh working conditions scenario<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.clelek.com\/ru\/blog\/when-do-we-need-to-install-a-high-voltage-earthing-switch\/#Compatibility_standard_for_outdoor_high-voltage_switchgear\" >Compatibility standard for outdoor high-voltage switchgear<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.clelek.com\/ru\/blog\/when-do-we-need-to-install-a-high-voltage-earthing-switch\/#Interlocking_Matching_Requirements\" >Interlocking Matching Requirements<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.clelek.com\/ru\/blog\/when-do-we-need-to-install-a-high-voltage-earthing-switch\/#Principle_of_parameter_matching\" >Principle of parameter matching<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.clelek.com\/ru\/blog\/when-do-we-need-to-install-a-high-voltage-earthing-switch\/#Installation_location_standards\" >Installation location standards<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.clelek.com\/ru\/blog\/when-do-we-need-to-install-a-high-voltage-earthing-switch\/#The_core_advantage_of_the_grounding_switch_of_Chuanli\" >The core advantage of the grounding switch of Chuanli<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.clelek.com\/ru\/blog\/when-do-we-need-to-install-a-high-voltage-earthing-switch\/#Installation_and_acceptance_points\" >Installation and acceptance points<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.clelek.com\/ru\/blog\/when-do-we-need-to-install-a-high-voltage-earthing-switch\/#Conclusion\" >\u0417\u0430\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/www.clelek.com\/ru\/blog\/when-do-we-need-to-install-a-high-voltage-earthing-switch\/#FAQs\" >\u0412\u043e\u043f\u0440\u043e\u0441\u044b \u0438 \u043e\u0442\u0432\u0435\u0442\u044b<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Introduction\"><\/span><b>\u0412\u0432\u0435\u0434\u0435\u043d\u0438\u0435<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">In outdoor high voltage power systems, the earthing switch acts as a basic safety device for grounding protection, eliminating residual voltage and avoiding electric risks. As a professional supplier of <\/span><span style=\"color: #3366ff;\"><a style=\"color: #3366ff;\" title=\"\u0412\u044b\u0441\u043e\u043a\u043e\u0432\u043e\u043b\u044c\u0442\u043d\u044b\u0435 \u0440\u0430\u0441\u043f\u0440\u0435\u0434\u0435\u043b\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0435 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0430 \u043d\u0430\u0440\u0443\u0436\u043d\u043e\u0439 \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0438\" href=\"https:\/\/www.clelek.com\/ru\/product-category\/medium-and-high-voltage-electrical-component\/outdoor-high-voltage-switchgear\/\" target=\"_blank\" rel=\"noopener\"><b>outdoor high-voltage switchgear<\/b><\/a><\/span><span style=\"font-weight: 400;\">, <\/span><span style=\"color: #3366ff;\"><a style=\"color: #3366ff;\" title=\"Chuanli Power Transformer Manufacturer\" href=\"https:\/\/www.clelek.com\/ru\" target=\"_blank\" rel=\"noopener\"><b>\u0427\u0443\u0430\u043d\u044c\u043b\u0438<\/b><\/a><\/span><span style=\"font-weight: 400;\"> offers full-range earthing switches. This article introduces product details to guide proper configuration for power operation and power maintenance.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Overview_of_High_Voltage_Grounding_Switch_Foundation\"><\/span><b>Overview of High Voltage Grounding Switch Foundation<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Definitions_and_core_functions\"><\/span><b>Definitions and core functions<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">The high-voltage grounding switch is a mechanical special grounding device specially configured for high-voltage switchgear equipment. The core function is to stabilize the grounding of the charged circuit, release the residual charge and induced voltage on the line and equipment, and build a safe grounding barrier. It is an important part of the grounding protection system of high-voltage systems.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">In daily work, it can isolate the charged parts and prevent the return of electricity; When the equipment fails, the fault circuit can be quickly grounded to control the scope of the accident. It is combined with circuit breakers and isolation switches to form a complete high-voltage safety protection system, which is the primary guarantee for on-site personnel to carry out safe power maintenance work.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Main_Product_Categories\"><\/span><b>Main Product Categories<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">According to the functional positioning and use scenario, high-voltage grounding switches are mainly divided into two categories, which are adapted to different installation positions of outdoor high-voltage switchgear.<\/span><\/p>\n<table>\n<tbody>\n<tr>\n<td><span style=\"font-weight: 400;\">Product Type<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Primary Installation Location<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Core Functions<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Operational Characteristics<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Maintenance Grounding Switch<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Both sides of the circuit breakers or disconnectors<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Grounds equipment on both sides during maintenance; discharges residual voltage<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Manual operation; simple structure; suitable for routine maintenance<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">High-Speed \u200b\u200bGrounding Switch<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Line side of outgoing disconnectors<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Makes\/breaks capacitive and inductive currents; provides emergency fault grounding<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Motor-driven spring mechanism; high closing speed; suitable for fault handling<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"font-weight: 400;\">\u00a0<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Essential_installation_scenarios_for_grounding_switches\"><\/span><b>Essential installation scenarios for grounding switches<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Daily_Power_Maintenance_Scenario\"><\/span><b>Daily Power Maintenance Scenario<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">This is the most basic application scenario of the grounding switch. Staff must close the grounding switch and completely release the residual voltage in the circuit before carrying out power inspection, equipment inspection, and replacement of parts and components for outdoor high-voltage switchgear to prevent electric shock accidents caused by sudden power supply from the power side. All outdoor high-voltage equipment that requires regular manual maintenance must be equipped with a grounding switch.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Outdoor_high-voltage_line_operation_scene\"><\/span><b>Outdoor high-voltage line operation scene<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Long-distance outdoor overhead lines are affected by static electricity and electromagnetic induction, and will continuously generate capacitive current and inductive current. When the line is out of service for inspection and segment operation, the fast grounding switch can effectively divide and close the induced current and stabilize the line voltage. Whether it is the main high-voltage line of the city or the branch line of the industrial park, the grounding switch must be installed at the connection position of the line and the switch equipment.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Emergency_response_scenario_for_equipment_failure\"><\/span><b>Emergency response scenario for equipment failure<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">When the outdoor high-voltage switchgear, transmission lines, and transformers have insulation breakdowns, The fast grounding switch can quickly ground the main circuit when there are faults such as creepage of insulators and internal arcs, which can cut off the fault current and prevent the fault from expanding, thus avoiding major accidents such as equipment burning and lines catching fire, and is an important emergency protection device for high-voltage systems.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Scenario_of_the_layout_of_substations_and_switch_stations\"><\/span><b>Scenario of the layout of substations and switch stations<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Outdoor substations and switch stations are densely arranged with a large number of high-voltage switchgears, with complex circuit connections and frequent switching operations. According to the specifications of the power industry, all outgoing lines, incoming lines, and busbar intervals in the substation must be equipped with grounding switches to form a layered protection system, ensuring the safe operation of all equipment and circuits in the substation.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Outdoor_harsh_working_conditions_scenario\"><\/span><b>Outdoor harsh working conditions scenario<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">In industrial and mining areas, new energy power plants (wind power, photovoltaic), outdoor power grid and other places, the equipment is subjected to wind, rain, dust and temperature difference all year round, and the harsh environment is easy to cause insulation aging and abnormal induced voltage. The grounding switch cooperates with outdoor high-voltage switchgear to resist complex environmental interference, continuously ensure effective grounding protection, and avoid safety hazards caused by environmental factors.<\/span><\/p>\n<p><span style=\"font-weight: 400;\"> <a href=\"https:\/\/www.clelek.com\/ru\/product-category\/medium-and-high-voltage-electrical-component\/outdoor-high-voltage-switchgear\/\" target=\"_blank\" rel=\"noopener\"><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone wp-image-3541 size-medium\" title=\"\u0412\u044b\u0441\u043e\u043a\u043e\u0432\u043e\u043b\u044c\u0442\u043d\u044b\u0435 \u0440\u0430\u0441\u043f\u0440\u0435\u0434\u0435\u043b\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0435 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0430 \u043d\u0430\u0440\u0443\u0436\u043d\u043e\u0439 \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0438\" src=\"https:\/\/i1.wp.com\/www.clelek.com\/wp-content\/uploads\/2025\/05\/Outdoor-High-Voltage-Switchgear-0516-300x300.jpg?quality=85&strip=all\" alt=\"\u0412\u044b\u0441\u043e\u043a\u043e\u0432\u043e\u043b\u044c\u0442\u043d\u044b\u0435 \u0440\u0430\u0441\u043f\u0440\u0435\u0434\u0435\u043b\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0435 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0430 \u043d\u0430\u0440\u0443\u0436\u043d\u043e\u0439 \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0438\" width=\"300\" height=\"300\" srcset=\"https:\/\/i1.wp.com\/www.clelek.com\/wp-content\/uploads\/2025\/05\/Outdoor-High-Voltage-Switchgear-0516-300x300.jpg?quality=85&strip=all 300w, https:\/\/i1.wp.com\/www.clelek.com\/wp-content\/uploads\/2025\/05\/Outdoor-High-Voltage-Switchgear-0516-150x150.jpg?quality=85&strip=all 150w, https:\/\/i1.wp.com\/www.clelek.com\/wp-content\/uploads\/2025\/05\/Outdoor-High-Voltage-Switchgear-0516-768x768.jpg?quality=85&strip=all 768w, https:\/\/i1.wp.com\/www.clelek.com\/wp-content\/uploads\/2025\/05\/Outdoor-High-Voltage-Switchgear-0516.jpg?quality=85&strip=all 800w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Compatibility_standard_for_outdoor_high-voltage_switchgear\"><\/span><b>Compatibility standard for outdoor high-voltage switchgear<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Interlocking_Matching_Requirements\"><\/span><b>Interlocking Matching Requirements<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">The grounding switch and the corresponding isolation switch and circuit breaker must adopt a mechanical + electrical double lock, and strictly follow the relevant national high-voltage switchgear standards. The core logic is: when the isolation switch is closed, the grounding switch is locked and cannot be operated; After the grounding switch is closed, the isolation switch and circuit breaker should not be forcibly closed. The interlocking device can prevent misoperations such as turning on the grounding switch while the power is on, which is the key to the safe operation of the system.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Principle_of_parameter_matching\"><\/span><b>Principle of parameter matching<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">The rated voltage, rated current, and short-term withstand short-circuit current of the grounding switch must be consistent with the outdoor high-voltage switchgear it is matched with. <\/span><b>\u0427\u0443\u0430\u043d\u044c\u043b\u0438<\/b><span style=\"font-weight: 400;\">&#8216;s full series of switchgear covers the full voltage level of 12kV ~ 220kV, and the grounding switch is designed according to the voltage level, ensuring unified insulation performance and current-carrying capacity, and matching the operating parameters of different specifications of circuit breakers and isolation switches.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Installation_location_standards\"><\/span><b>Installation location standards<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">The maintenance-type grounding switch is installed on both sides of the circuit breaker; The fast grounding switch is fixed on the line side of the outgoing line isolation switch, which is convenient for handling line faults and cooperating with the operation of induced current.<\/span><\/p>\n<table>\n<tbody>\n<tr>\n<td><span style=\"font-weight: 400;\">Associated Equipment<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Installation Location<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Configuration Recommendation<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">LW36 Outdoor SF6 Circuit Breaker<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Both sides of the circuit breaker<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Configure maintenance-type grounding switches<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">GW4 Outdoor Disconnector<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Line side and busbar side<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Select maintenance-type or high-speed grounding switches based on operating conditions<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">FZW32 Outdoor Vacuum Load Break Switch<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Load side<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Prioritize high-speed grounding switches based on line operating conditions<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">RT-BHGZ Transformer Neutral Point Equipment<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Neutral point bay<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Dedicated neutral point grounding protection switch<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"font-weight: 400;\">\u00a0<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"The_core_advantage_of_the_grounding_switch_of_Chuanli\"><\/span><b>The core advantage of the grounding switch of Chuanli<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li><b>The safety performance is reliable.<\/b><\/li>\n<\/ul>\n<p><b>\u0427\u0443\u0430\u043d\u044c\u043b\u0438<\/b><span style=\"font-weight: 400;\"> grounding switch adopts high-strength conductive material and optimized contact structure, the static and dynamic contacts are in close contact, the short-circuit current tolerance is strong, and the grounding performance is stable. The equipment base and conductive parts are treated with anti-rust and anti-corrosion, which can resist outdoor wind and rain, dust erosion, and maintain stable grounding protection performance under harsh working conditions.<\/span><\/p>\n<ul>\n<li><b>The interlocking system is perfect.<\/b><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">The product is equipped with a mechanical and electrical dual interlocking structure, and the interlocking action is flexible and accurate, which fully complies with the electrical &#8220;five prevention&#8221; safety operation norms. It can effectively block all kinds of human misoperation behaviors, completely avoid the safety risks brought by operation errors, and build a solid security line for high-voltage complete switch equipment.<\/span><\/p>\n<ul>\n<li><b>Compatible with all series<\/b><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">It can be perfectly matched with the LW36 circuit breaker, the GW4 circuit breaker, the FZW32 load switch and neutral point equipment. The modular design realizes the unified adaptability of all voltage levels from 12 kV to 220 kV, solves the compatibility problem of products from multiple manufacturers, and reduces the coordination cost of the entire system.<\/span><\/p>\n<ul>\n<li><b>Operation and maintenance are simple.<\/b><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">The equipment transmission mechanism is designed reasonably, and the remote and on-site disconnection and reconnection operations are smooth with no jamming phenomenon. The overall structure is simple, there are fewer wearable parts, and there is no need for frequent maintenance in the outdoor operation environment, which greatly reduces the daily operation and maintenance workload of power stations and mining areas.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Installation_and_acceptance_points\"><\/span><b>Installation and acceptance points<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li><b>Appearance inspection<\/b><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Check the grounding switch bracket, grounding wire, and shell for no rust, deformation, or damage. The grounding lead line is clearly marked, and all fixed bolts are equipped with spring washers, which are firmly installed. The overall appearance of the equipment is neat, and there are no obvious defects in the parts.<\/span><\/p>\n<ul>\n<li><b>Connection check<\/b><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">All electrical connection bolts are tightened according to the torque standard, and conductive composite grease is applied to the contact surface to reduce the contact resistance. The grounding wire should be neither too tight nor too loose, and should be firmly connected to ensure that the electrical connection of the entire grounding circuit is reliable.<\/span><\/p>\n<ul>\n<li><b>Operation test<\/b><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Conduct practical tests of remote and on-site disconnecting and reconnecting. The transmission mechanism is flexible and there is no jamming, and the disconnecting and reconnection state indication is accurate. The parameters of three-phase synchronization, phase gap, and breaking angle of contacts are all in line with the product technical specifications.<\/span><\/p>\n<ul>\n<li><b>Interlocking test<\/b><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">The simulation of various types of interlocking logic operations, the mechanical and electrical interlocking action between the grounding switch and the corresponding isolation switch and circuit breaker is reliable, the locking and unlocking is accurate, and there is no malfunction or mislock problem.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span><b>\u0417\u0430\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Earthing switches are vital for the whole process of equipment running and power maintenance. <\/span><a title=\"Chuanli Power Transformer Manufacturer\" href=\"https:\/\/www.clelek.com\/ru\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #3366ff;\"><b>\u0427\u0443\u0430\u043d\u044c\u043b\u0438<\/b><\/span><\/a><span style=\"font-weight: 400;\">\u2019s products feature great performance and high compatibility. Standard installation and acceptance give full play to grounding protection, guaranteeing safe and stable operation of <\/span><span style=\"color: #3366ff;\"><a style=\"color: #3366ff;\" title=\"\u0412\u044b\u0441\u043e\u043a\u043e\u0432\u043e\u043b\u044c\u0442\u043d\u044b\u0435 \u0440\u0430\u0441\u043f\u0440\u0435\u0434\u0435\u043b\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0435 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0430 \u043d\u0430\u0440\u0443\u0436\u043d\u043e\u0439 \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0438\" href=\"https:\/\/www.clelek.com\/ru\/product-category\/medium-and-high-voltage-electrical-component\/outdoor-high-voltage-switchgear\/\" target=\"_blank\" rel=\"noopener\"><b>\u0412\u044b\u0441\u043e\u043a\u043e\u0432\u043e\u043b\u044c\u0442\u043d\u044b\u0435 \u0440\u0430\u0441\u043f\u0440\u0435\u0434\u0435\u043b\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0435 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0430 \u043d\u0430\u0440\u0443\u0436\u043d\u043e\u0439 \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0438<\/b><\/a><span style=\"font-weight: 400;\">.<\/span><\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"FAQs\"><\/span><b>\u0412\u043e\u043f\u0440\u043e\u0441\u044b \u0438 \u043e\u0442\u0432\u0435\u0442\u044b<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><b>Q1: What is the core function of the grounding switch?<\/b><\/p>\n<p><b>A1:<\/b><span style=\"font-weight: 400;\"> Release residual voltage, realize ground protection, and ensure safety in power inspection and fault conditions.<\/span><\/p>\n<p><b>Q2: Does the grounding switch need to be installed in all outdoor high-voltage switch cabinets?<\/b><\/p>\n<p><b>A2:<\/b><span style=\"font-weight: 400;\"> Yes, it is a basic security device that is essential for the daily operation of equipment and the operation of lines.<\/span><\/p>\n<p><b>Q3: What is the difference between a maintenance type and a quick grounding switch?<\/b><\/p>\n<p><b>A3:<\/b><span style=\"font-weight: 400;\"> The former is used for daily inspection work, and the latter focuses on the opening and closing of line-induced current and emergency grounding of faults.<\/span><\/p>\n<p><b>Q4: Which high-pressure equipment from Chuanli can be matched with grounding switches?<\/b><\/p>\n<p><b>A4:<\/b><span style=\"font-weight: 400;\"> It can be matched with the LW36 circuit breaker, the GW4 isolator and other outdoor high voltage switch cabinets.<\/span><\/p>\n<p><b>Q5: Why must grounding switches be installed at outdoor stations in new energy and mining areas?<\/b><\/p>\n<p><b>A5:<\/b><span style=\"font-weight: 400;\"> Suitable for harsh working conditions, to prevent safety hazards caused by induced voltage and equipment failure.<\/span><\/p>","protected":false},"featured_media":5224,"parent":0,"menu_order":5,"template":"","meta":[],"blog_category":[9],"class_list":["post-5223","blog","type-blog","status-publish","has-post-thumbnail","hentry","blog_category-industry-news"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.clelek.com\/ru\/wp-json\/wp\/v2\/blog\/5223","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.clelek.com\/ru\/wp-json\/wp\/v2\/blog"}],"about":[{"href":"https:\/\/www.clelek.com\/ru\/wp-json\/wp\/v2\/types\/blog"}],"version-history":[{"count":2,"href":"https:\/\/www.clelek.com\/ru\/wp-json\/wp\/v2\/blog\/5223\/revisions"}],"predecessor-version":[{"id":5255,"href":"https:\/\/www.clelek.com\/ru\/wp-json\/wp\/v2\/blog\/5223\/revisions\/5255"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.clelek.com\/ru\/wp-json\/wp\/v2\/media\/5224"}],"wp:attachment":[{"href":"https:\/\/www.clelek.com\/ru\/wp-json\/wp\/v2\/media?parent=5223"}],"wp:term":[{"taxonomy":"blog_category","embeddable":true,"href":"https:\/\/www.clelek.com\/ru\/wp-json\/wp\/v2\/blog_category?post=5223"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}