{"id":920,"date":"2021-04-29T07:39:10","date_gmt":"2021-04-29T07:39:10","guid":{"rendered":"https:\/\/www.wolunelectric.com\/?post_type=product&p=920"},"modified":"2026-05-20T11:02:36","modified_gmt":"2026-05-20T03:02:36","slug":"gn-72-dc-disconnector-electric-dust-removal-single-pole-high-voltage-isolation-switch-gn3-72-2-1s-72kv-2a","status":"publish","type":"product","link":"https:\/\/www.wolunelectric.com\/vi\/product\/gn-72-dc-disconnector-electric-dust-removal-single-pole-high-voltage-isolation-switch-gn3-72-2-1s-72kv-2a\/","title":{"rendered":"GN-72 DC disconnector, electric dust removal single pole high voltage isolation switch GN3-72\/2-1S 72KV 2A"},"content":{"rendered":"
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The GN-72 series DC isolating switch adopts a left-hand or right-hand rotary operating mechanism<\/strong> and is installed between the electrostatic precipitator insulating support and the silicon rectifier transformer output terminal.<\/p>\n

Its primary function is to:<\/p>\n

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  • isolate the high-voltage DC circuit,<\/li>\n
  • ensure safe maintenance,<\/li>\n
  • provide grounding capability during servicing,<\/li>\n
  • improve personnel safety during inspection and repair.<\/li>\n<\/ul>\n

    The switch is widely used in:<\/p>\n

      \n
    • Electrostatic precipitators (ESP)<\/li>\n
    • Dust collection systems<\/li>\n
    • Industrial environmental protection equipment<\/li>\n
    • Thermal power plants<\/li>\n
    • Cement plants<\/li>\n
    • Metallurgical industries<\/li>\n<\/ul>\n

      \n

      Main Features<\/h2>\n
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      • Single-pole DC isolation structure<\/li>\n
      • Rated DC voltage up to 72kV<\/li>\n
      • Compact and reliable design<\/li>\n
      • Rotary handwheel operation<\/li>\n
      • High insulation performance<\/li>\n
      • Suitable for indoor installation<\/li>\n
      • Stable conductivity and long service life<\/li>\n
      • Maintenance-friendly structure<\/li>\n
      • Optional left-hand or right-hand operation<\/li>\n<\/ul>\n

        Technical Specifications<\/h2>\n
        \n
        \n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
        Item<\/th>\nSpecification<\/th>\n<\/tr>\n<\/thead>\n
        Model<\/td>\nGN3-72\/2-1S<\/td>\n<\/tr>\n
        Rated DC Voltage<\/td>\n72kV<\/td>\n<\/tr>\n
        Rated DC Current<\/td>\n2A<\/td>\n<\/tr>\n
        Type<\/td>\nSingle Pole DC Disconnector<\/td>\n<\/tr>\n
        Installation<\/td>\nIndoor<\/td>\n<\/tr>\n
        Operation Method<\/td>\nManual rotary operation<\/td>\n<\/tr>\n
        Application<\/td>\nElectrostatic precipitator system<\/td>\n<\/tr>\n
        Ambient Temperature<\/td>\n-20\u00b0C ~ +60\u00b0C<\/td>\n<\/tr>\n
        Relative Humidity<\/td>\n\u226495%<\/td>\n<\/tr>\n
        Altitude<\/td>\n\u22642000m<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

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        Installation Conditions<\/h2>\n

        The installation environment should meet the following conditions:<\/p>\n

          \n
        • No severe conductive dust<\/li>\n
        • No corrosive gases or metal particles<\/li>\n
        • No strong vibration<\/li>\n
        • Flat and secure installation surface<\/li>\n
        • Minimum safety clearance above 300mm around high-voltage terminals<\/li>\n<\/ul>\n

          If used outdoors, the switch should be installed inside a protective metal enclosure.<\/p>\n

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          Product Advantages<\/h2>\n

          High Safety Performance<\/h3>\n

          Designed specifically for safe isolation and grounding of ESP high-voltage circuits during maintenance.<\/p>\n

          Reliable Insulation<\/h3>\n

          Suitable for harsh industrial dust-removal environments with stable insulation capability.<\/p>\n

          Easy Maintenance<\/h3>\n

          Simple structure allows convenient inspection and periodic lubrication.<\/p>\n

          Long Service Life<\/h3>\n

          Mechanical structure ensures reliable long-term operation under industrial conditions.<\/p>\n

          Typical Applications<\/h2>\n
            \n
          • Electrostatic precipitators<\/li>\n
          • Flue gas dust collection systems<\/li>\n
          • Environmental protection systems<\/li>\n
          • HV DC isolation circuits<\/li>\n
          • Industrial dust removal equipment<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

            GN3-72\/2-1S is a 72kV 2A single-pole high voltage DC disconnector designed for electrostatic precipitator and electric dust removal systems.<\/p>\n

            It provides reliable isolation, grounding, and maintenance safety for HV DC circuits.<\/p>","protected":false},"featured_media":925,"template":"","meta":{"_seopress_robots_primary_cat":"none","_seopress_titles_title":"GN3-72\/2-1S 72kV 2A DC Disconnector | High Voltage Isolation Switch for ESP","_seopress_titles_desc":"GN3-72\/2-1S 72kV 2A DC disconnector for electrostatic precipitator systems. Reliable high voltage isolation switch for electric dust removal and industrial HV DC applications.","_seopress_robots_index":""},"product_brand":[],"product_cat":[46],"product_tag":[],"class_list":{"0":"post-920","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-high-voltage-disconnect-switch","8":"first","9":"instock","10":"shipping-taxable","11":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/www.wolunelectric.com\/vi\/wp-json\/wp\/v2\/product\/920","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wolunelectric.com\/vi\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.wolunelectric.com\/vi\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.wolunelectric.com\/vi\/wp-json\/wp\/v2\/media\/925"}],"wp:attachment":[{"href":"https:\/\/www.wolunelectric.com\/vi\/wp-json\/wp\/v2\/media?parent=920"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.wolunelectric.com\/vi\/wp-json\/wp\/v2\/product_brand?post=920"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.wolunelectric.com\/vi\/wp-json\/wp\/v2\/product_cat?post=920"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.wolunelectric.com\/vi\/wp-json\/wp\/v2\/product_tag?post=920"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}