Parametri Tecnici<\/h3>\n\n\n\nParametro<\/th> Valore<\/th><\/tr><\/thead> Tensione nominale<\/td> 40.5kV (compatible with 35kV systems)<\/td><\/tr> Frequenza nominale<\/td> 15\u201360Hz<\/td><\/tr> Corrente nominale<\/td> 630A\u20133150A (customizable upon request)<\/td><\/tr> Dimensioni complessive<\/td> 260\u00d7260\u00d7450mm (mounting flange \u00d7 total height)<\/td><\/tr> Dimensioni della flangia di montaggio<\/td> 260mm \u00d7 260mm<\/td><\/tr> Materiale<\/td> Epoxy resin, APG process<\/td><\/tr> Colore<\/td> Red (natural epoxy resin color)<\/td><\/tr> Tensione di tenuta a frequenza di rete (1 min)<\/td> 95kV (dry condition)<\/td><\/tr> Tensione di tenuta all'impulso atmosferico (picco)<\/td> 185kV<\/td><\/tr> Livello di scarica parziale<\/td> \u22645pC (at 1.1Um)<\/td><\/tr> Distanza di isolamento superficiale<\/td> In accordance with GB\/T 311 and relevant standards<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\nCaratteristiche del prodotto<\/h3>\n\n\n\n
Prestazioni di isolamento superiori<\/p>\n\n\n\n
Formed using the epoxy resin monolithic APG (Automatic Pressure Gelation) process, the structure is dense and void-free, yielding high electrical insulation strength that effectively withstands the risk of dielectric breakdown at the 35kV level.<\/p>\n\n\n\n
Shed-type outer insulation design increases creepage distance and enhances resistance to pollution flashover and moisture, suitable for outdoor and heavily polluted environments.<\/p>\n\n\n\n
Reliable Mechanical Strength<\/p>\n\n\n\n
The epoxy resin matrix offers excellent impact and flexural resistance, capable of withstanding electromagnetic force impulses during busbar short-circuit events, with no tendency toward deformation or cracking under long-term operation.<\/p>\n\n\n\n
Square flange mounting structure provides uniform load distribution, ensuring secure connection to the cabinet or wall with outstanding seismic performance.<\/p>\n\n\n\n
Optimized Electric Field Design<\/p>\n\n\n\n
An internal shielding layer (optional) can be integrated to homogenize electric field distribution, suppress partial discharge, extend service life, and improve system operational stability.<\/p>\n\n\n\n
Smooth inner and outer surfaces with no sharp edges eliminate electric field concentration and reduce the risk of corona discharge.<\/p>\n\n\n\n
Forte Adattabilit\u00e0 Ambientale<\/p>\n\n\n\n
Wide operating temperature range (\u221240\u00b0C to +120\u00b0C) with resistance to extreme temperatures and aging, enabling stable operation in outdoor, indoor, and high-altitude environments.<\/p>\n\n\n\n
Flame-retardant and chemically resistant; unaffected by biological factors such as mold and insects, making it suitable for complex industrial environments.<\/p>\n\n\n\n
Installazione e manutenzione convenienti<\/p>\n\n\n\n
Standardized flange dimensions and mounting hole patterns are directly compatible with mainstream 35kV high-voltage switchgear cabinets such as the KYN61-40.5.<\/p>\n\n\n\n
Compact structure and lightweight design require no additional maintenance \u2014 only periodic cleaning of surface contamination is necessary.<\/p>\n\n\n\n
Ambito di applicazione<\/h3>\n\n\n\n
Applicable to three-phase AC power systems with rated voltage of 10\u201335kV and frequency of 15\u201360Hz.<\/p>\n\n\n\n
Primary application scenarios:<\/p>\n\n\n\n
Internal busbar wall-through connections in high-voltage switchgear cabinets (e.g., KYN61-40.5 type).<\/p>\n\n\n\n
Wall\/partition busbar penetrations in substations and distribution rooms.<\/p>\n\n\n\n
Insulation support and conductive connections in box-type substations, ring main units, and similar distribution equipment.<\/p>\n\n\n\n
35kV high-voltage power distribution systems in industrial enterprises, mines, petrochemical plants, and related sectors.<\/p>\n\n\n\n
Condizioni operative<\/h3>\n\n\n\n
(I) Normal Service Environment<\/p>\n\n\n\n
Ambient temperature: \u221240\u00b0C to +120\u00b0C (short-term withstand up to 155\u00b0C).<\/p>\n\n\n\n
Altitude: \u22643000m (derating or custom design required beyond this limit).<\/p>\n\n\n\n
Relative humidity: daily average \u226495%, monthly average \u226490% (condensation-free conditions preferred).<\/p>\n\n\n\n
Pollution level: Class IV or below (enhanced creepage distance models required for heavily polluted environments).<\/p>\n\n\n\n
Locations free from severe vibration, shock, and flammable\/explosive or strongly corrosive gases.<\/p>\n\n\n\n
(II) Installation Requirements<\/p>\n\n\n\n
Mounting orientation: vertical or horizontal installation is permissible; the flange face must be in full, flush contact with the wall or cabinet surface to ensure uniform load distribution.<\/p>\n\n\n\n
Conductive connection: when threading copper bars\/busbars through the interior, ensure uniform clearance between the conductor and the inner wall of the bushing to avoid localized stress concentration.<\/p>\n\n\n\n
Sealing and protection: a sealing gasket must be installed between the flange and the mounting surface to prevent ingress of dust and moisture and to enhance insulation reliability.<\/p>\n\n\n\n
Safety clearance: after installation, minimum electrical clearances between live parts and grounded parts must comply with GB\/T 311 and other applicable standards.<\/p>\n\n\n\n
Precauzioni<\/h3>\n\n\n\n
Transport and Storage: avoid impacts and drops; store in a dry, well-ventilated environment free from corrosive gases to prevent surface moisture absorption and contamination.<\/p>\n\n\n\n
Pre-installation Inspection: verify that the product exterior is free from cracks and damage, that dimensions and mounting hole patterns match the installation site, and that electrical performance tests have been passed.<\/p>\n\n\n\n
Operational Maintenance: periodically clean surface contamination from the bushing; inspect flange connecting bolts for loosening; if partial discharge or surface tracking marks are detected, shut down immediately for inspection and repair.<\/p>\n\n\n\n
Type Selection: select the appropriate model specification based on the system rated current, voltage class, and installation space to avoid overloading or dimensional incompatibility.<\/p>\n\n\n\n![\"TG3-35Q-290\u00d7290\u00d7528-Tipo](\"https:\/\/yieou.com\/wp-content\/uploads\/2026\/01\/TG3-35Q-290\u00d7290\u00d7528-High-Altitude-Type-3AV3-Bushing.png\")
<\/figure>\n\n
| Parametro<\/th> | Valore<\/th><\/tr><\/thead> |
|---|---|
| Tensione nominale<\/td> | 40.5kV (compatible with 35kV systems)<\/td><\/tr> |
| Frequenza nominale<\/td> | 15\u201360Hz<\/td><\/tr> |
| Corrente nominale<\/td> | 630A\u20133150A (customizable upon request)<\/td><\/tr> |
| Dimensioni complessive<\/td> | 260\u00d7260\u00d7450mm (mounting flange \u00d7 total height)<\/td><\/tr> |
| Dimensioni della flangia di montaggio<\/td> | 260mm \u00d7 260mm<\/td><\/tr> |
| Materiale<\/td> | Epoxy resin, APG process<\/td><\/tr> |
| Colore<\/td> | Red (natural epoxy resin color)<\/td><\/tr> |
| Tensione di tenuta a frequenza di rete (1 min)<\/td> | 95kV (dry condition)<\/td><\/tr> |
| Tensione di tenuta all'impulso atmosferico (picco)<\/td> | 185kV<\/td><\/tr> |
| Livello di scarica parziale<\/td> | \u22645pC (at 1.1Um)<\/td><\/tr> |
| Distanza di isolamento superficiale<\/td> | In accordance with GB\/T 311 and relevant standards<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\nCaratteristiche del prodotto<\/h3>\n\n\n\nPrestazioni di isolamento superiori<\/p>\n\n\n\n Formed using the epoxy resin monolithic APG (Automatic Pressure Gelation) process, the structure is dense and void-free, yielding high electrical insulation strength that effectively withstands the risk of dielectric breakdown at the 35kV level.<\/p>\n\n\n\n Shed-type outer insulation design increases creepage distance and enhances resistance to pollution flashover and moisture, suitable for outdoor and heavily polluted environments.<\/p>\n\n\n\n Reliable Mechanical Strength<\/p>\n\n\n\n The epoxy resin matrix offers excellent impact and flexural resistance, capable of withstanding electromagnetic force impulses during busbar short-circuit events, with no tendency toward deformation or cracking under long-term operation.<\/p>\n\n\n\n Square flange mounting structure provides uniform load distribution, ensuring secure connection to the cabinet or wall with outstanding seismic performance.<\/p>\n\n\n\n Optimized Electric Field Design<\/p>\n\n\n\n An internal shielding layer (optional) can be integrated to homogenize electric field distribution, suppress partial discharge, extend service life, and improve system operational stability.<\/p>\n\n\n\n Smooth inner and outer surfaces with no sharp edges eliminate electric field concentration and reduce the risk of corona discharge.<\/p>\n\n\n\n Forte Adattabilit\u00e0 Ambientale<\/p>\n\n\n\n Wide operating temperature range (\u221240\u00b0C to +120\u00b0C) with resistance to extreme temperatures and aging, enabling stable operation in outdoor, indoor, and high-altitude environments.<\/p>\n\n\n\n Flame-retardant and chemically resistant; unaffected by biological factors such as mold and insects, making it suitable for complex industrial environments.<\/p>\n\n\n\n Installazione e manutenzione convenienti<\/p>\n\n\n\n Standardized flange dimensions and mounting hole patterns are directly compatible with mainstream 35kV high-voltage switchgear cabinets such as the KYN61-40.5.<\/p>\n\n\n\n Compact structure and lightweight design require no additional maintenance \u2014 only periodic cleaning of surface contamination is necessary.<\/p>\n\n\n\n Ambito di applicazione<\/h3>\n\n\n\nApplicable to three-phase AC power systems with rated voltage of 10\u201335kV and frequency of 15\u201360Hz.<\/p>\n\n\n\n Primary application scenarios:<\/p>\n\n\n\n Internal busbar wall-through connections in high-voltage switchgear cabinets (e.g., KYN61-40.5 type).<\/p>\n\n\n\n Wall\/partition busbar penetrations in substations and distribution rooms.<\/p>\n\n\n\n Insulation support and conductive connections in box-type substations, ring main units, and similar distribution equipment.<\/p>\n\n\n\n 35kV high-voltage power distribution systems in industrial enterprises, mines, petrochemical plants, and related sectors.<\/p>\n\n\n\n Condizioni operative<\/h3>\n\n\n\n(I) Normal Service Environment<\/p>\n\n\n\n Ambient temperature: \u221240\u00b0C to +120\u00b0C (short-term withstand up to 155\u00b0C).<\/p>\n\n\n\n Altitude: \u22643000m (derating or custom design required beyond this limit).<\/p>\n\n\n\n Relative humidity: daily average \u226495%, monthly average \u226490% (condensation-free conditions preferred).<\/p>\n\n\n\n Pollution level: Class IV or below (enhanced creepage distance models required for heavily polluted environments).<\/p>\n\n\n\n Locations free from severe vibration, shock, and flammable\/explosive or strongly corrosive gases.<\/p>\n\n\n\n (II) Installation Requirements<\/p>\n\n\n\n Mounting orientation: vertical or horizontal installation is permissible; the flange face must be in full, flush contact with the wall or cabinet surface to ensure uniform load distribution.<\/p>\n\n\n\n Conductive connection: when threading copper bars\/busbars through the interior, ensure uniform clearance between the conductor and the inner wall of the bushing to avoid localized stress concentration.<\/p>\n\n\n\n Sealing and protection: a sealing gasket must be installed between the flange and the mounting surface to prevent ingress of dust and moisture and to enhance insulation reliability.<\/p>\n\n\n\n Safety clearance: after installation, minimum electrical clearances between live parts and grounded parts must comply with GB\/T 311 and other applicable standards.<\/p>\n\n\n\n Precauzioni<\/h3>\n\n\n\nTransport and Storage: avoid impacts and drops; store in a dry, well-ventilated environment free from corrosive gases to prevent surface moisture absorption and contamination.<\/p>\n\n\n\n Pre-installation Inspection: verify that the product exterior is free from cracks and damage, that dimensions and mounting hole patterns match the installation site, and that electrical performance tests have been passed.<\/p>\n\n\n\n Operational Maintenance: periodically clean surface contamination from the bushing; inspect flange connecting bolts for loosening; if partial discharge or surface tracking marks are detected, shut down immediately for inspection and repair.<\/p>\n\n\n\n Type Selection: select the appropriate model specification based on the system rated current, voltage class, and installation space to avoid overloading or dimensional incompatibility.<\/p>\n\n\n\n |