Types: Porcelain disc insulator/suspension insulator, pin insulator, line post insulator, station post insulator. DISC INSULATORS Porcelain disc insulators are the most widely used in strings, they can be used for any voltage depending on the numberof units mounted in series for transmission and distribution lines. Voltage & Mechanical Range 11kV-765kV. 40kN-300kN. Application The insulators are designed to be suitable for different types of polluted zones and mechanical strength according to client's requrests. Life expectancy of these insulators are extremely high but may be adversely affected if operated beyond specified limits of electrical or mechanical stress. STATION POST INSULATOR the most comprehensive range of porcelain post insulators up to highest system voltages with the most progressive technology, engineering and life time. Short production time, tighter tolerances, flexible design, extra-high mechanical strength and extended creepage distances are possible by wet/dry process. Voltage Range IEC station post insulators manufacture in full accordance to IEC60273. Operating rod columns for disconnectors are manufactured corresponding to the relevant post insulators. Insulation requirements are available in ratings from BIL 60kV to 2550kV. TR station post insulators manufacture in full accordance with ANSI C29.9. Insulation requirements are available in ratings from 95 kV to 2050 kV. Special requirements can be also offered upon request. Standard post insulators conforms to specifications of IEC 60273 and ANSI-C29.9. Application The post insulator up to 500kV can be used for switchgears, disconnectors and substations.
Types: Long rod composite insulator, tension & suspension insulator, line post, station post/busbar support insulator Composite insulator consists of three parts: Fiberglass core: ECR End fitting: Hot-dip galvanized forged steel and casting steel. Silicone rubber: HTV VOLTAGE RATING & STRENGTH RANGE 11kV up to 500kV. 40kN up to 300kN long rod type, 4kN up to 20kN post type. STANDARD TRONCO ELECTRIC insulators complied with the standard of IEC 61109 & IEC 61952 ADVANTAGES The use of composite insulators in place of traditional porcelain and glass insulators for line insulation has become widespread in the last 20 years. High temperature vulcanized (HTV) silicone rubber is dominating for transmission voltages. Lighter weight Lower cost Easier handling Better resistance to damage from vandals Superior contamination performance APPLICATION Long rod insulators are used for suspension and tension towers for high voltage grids and railway grids. Composite post insulators are used for disconnector, switchgear and substation works. Tronco Electric can also make the design and supply the insulator strings.
Toughened glass insulators produced Electric provide the highest level of performance and long-term security for high voltage insulation. MECHANICAL & VOLTAGE RATING Toughened glass disc insulator 40kN up to 300kN, 11kV up to 765kV. STANDARD glass insulators comply with IEC60383. STRUCTURE Glass insulator consists of cast-iron cap, toughened glass body and pin which are agglutinated together by cement into an integrated piece. Cylindrical head has been adopted for insulators, which is the most advanced structure in the world with superiorities such as less dimension, lighter wieght, higher strength and longer creepage distance which can save metallic materials and reduce transmission line cost. Most High-voltage lines use ball & socket type toughened glass insulator, which is also called cap & pin. Cross-section is as below. Tongue & Clevis assembly is also used for glass disc insulator. Nomal type/Fog type APPLICATION Glass insulators are applied in HV and Extra HV transmission lines as dielectric and use for suspending conductors.
T-connector, Terminal connector, Busbar fittings Material: Aluminium alloy wide range of bus supports and compression connectors for substations and other utility installations. Our components are created in accordance with IEC and GB specifications, ensuring quality, longevity, safety and performance.
Compression Splice/Mid Span Joint For high voltage transmission lines, conductor bundles are used for each phase to fulfil electrical requirements. Spacing devices are installed on the bundles to maintain subconductor separation. Elastic and damping elements are introduced into the spacing devices for distributing the damping effect along the spans which prevents entrapment of vibration between Spacer Dampers and avoids bending stresses at the clamps. Tronco Electric can make the design with the conductor specifications provided by clients. Repair Sleeves Repair sleeves are used where the strands of the overhead line conductor are broken. The conductor repair sleeve is simply compressed over the damaged section of the overhead line conductor. The diameter and the length of the repair kits vary in order to suit the applicable overhead line conductor. Spacer Damper Tronco Electric offers a full range of Spacers and Spacer Dampers for bundled lines. By combining years of expertise, long term service and relaibility, we offer a full range of spacers and spacer dampers for all types of bundle configuration and conductor applications. Vibration Damper Vibrations will lead to internal conductor fatigue stress at suspension and tension fittings, applying compression and bending loads at conductor support points.
Electric designs, manufactures and supplies OHL hardware and accessories for power transmission and distribution lines with over 20 years experrience. Single insulator tension & suspension string Double insulator tension & suspension string Triple insulator tension & suspension string STANDARD Electric comply with the standard of IEC61284, BS729, BS3288, ISO1461, IEC60120. PRODUCT RANGE 11kV-500kV insulator strings. All the components of insulators strings can be found in the catalogs. Electric can also make the design according to client's reuirements. APPLICATION The tension, suspension and jumper strings are used for OHL transmission lines with porcelain insulators, glass insulators or composite insulators.
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Our Chinese partner is a manufacturer and trading company specializing in high-voltage electrical equipment. Based in Northern China, the company serves markets worldwide, including Africa, the Americas, Asia, and the Middle East. Their products cater to energy transmission and distribution needs, offering solutions for electrical safety and efficiency. The company's key product lines include: 1. Lightning Arresters: These devices protect electrical systems from surges caused by lightning strikes. They are available in composite and ceramic forms and are designed to ensure high performance under challenging environmental conditions. 2. Insulators: These include composite and porcelain types, used to support and separate electrical conductors while withstanding environmental stresses. 3. Fuse Cutouts: These protective devices safeguard electrical networks by interrupting power during faults. Composite and porcelain variations are available to meet diverse operational needs. All products adhere to international standards like IEC and are ISO9001 and ISO14001 certified, ensuring quality and environmental compliance. The company emphasizes robust manufacturing and stringent testing processes to deliver reliable solutions. The company has a focus on innovation, durable materials (like silicone rubber and zinc oxide), and antifouling and anti-corrosive properties make its offerings suitable for harsh environments. With a strong production capacity, the company can meet high-volume orders, providing customizable options for global clients.
1.Polymer Insulator Character: 1.1High mechanical strength; 1.2Good performance of hydrophobicity and anti-pollution; 1.3 Excellent electrical Performance; 1.4 Small volume and light weight. 2.TID polymer Insulator Character: 2.1 We adopt the advanced injection producing technology for housing and the design of the shed adopt unique aerodynamics principle. 2.2 Good Raw material : We use HTV silicone rubber which hydrophobicity can reach to HC1 level We use hot dip Galvanizing steel fitting ,the thickness of the zinc more than 100 m. We use ECR rod as the core which is high acid resistant. 7200Hr testing passed . 2.3 Special marking design. We use the double seal design between the rubber and the fitting. We can mark your logo on the fitting or rubber. 2.4 Excellent Manufacture Technology: Perfect match between fitting and rod With imported end-fitting crimping equipment ,ensures the mechanical performance of the product Perfect bound between silicone rubber and the rod. 2.5 The unique end fitting sealing structure improves product sealing reliability 2.6 The strict inspection measures ensure the perfect quality of every product. Product Advantages: 1.Light weight It is small in size and in light weight, it is about 1/5 to 1/9 of the porcelain insulator in the same grade voltage, so itâ??s convenient for transportation and installation. 2.Good Anti-pollution Composite insulator has a good anti-pollution performance, so it can operate safely in polluted area, it requires neither annual cleaning or maintaining at zero. 3.High Anti-fouling property Good aging resistance performance, strong ability of anti-pollution flashover and good electric corrosion resistance, can ensure that the internal insulation core will not be affected by moisture. 4..Strong shock resistance Composite insulators have good brittleness resistance, strong shock resistance and there no brittle fracture accident. Composite insulators are interchangeable with ceramic. 5.Stable Performance The composite insulator has high mechanical strength, reliable structure and stable performance, which provides a guarantee for the safe operation of the line.
