Jiangsu Shitate Intelligent Power Co., Ltd.
CONTACT US
Jiangsu Shitate Intelligent Power Co.,LTD.
E-Mail: sttxs@jsshitate.com
Telephone: +86-18852493399
Telephone: +86-18626077857
Address: No. 5 Datian Road, Guanlin Town, Yixing City
220kV Porcelain Sleeve Type Outdoor Terminal
Description
Product Features
Porcelain set using isostatic pressing molding process as a whole a molding,high mechanical strength, resistance to leakage mark, electrical erosion resistance, insulation resistance and self-cleaning performance is good, not easy ageing, earthquake resistant level is high, especially suitable for coastal and bad natural environment area.
Structure of large and small umbrella skirt and white, proved its excellent resistance to fouling characteristics.
Stress cone using imported high elastic liquid silicone rubber, and carry on finite element optimization design, effectively solve the problem of electric field stress concentration.
Adopts multi-layer sealing structure, sealed performance is good, to eliminate the phenomenon of porcelain sets appear flooding, such as oil, improve the service life of the terminal.
Main insulation parts has been stipulated in the standard after testing in the factory.
Products Comply With The Following Standards
GB/T 18890.3-2015 Power cables with cross-linked polyeth-ylene insulation and their accessories for rated voltage of 220kV (Um=252KV). Part 3: Accessories
IEC 62067-2011 Power cables with extruded insulation andtheir accessories for rated voltages above 150kV (Um=170 kV) up to 500 kV (Um=550kV). Test methods and requirements
Main technical parameters
| Item | Technical parameters |
| Rated voltage and frequency | 127/220kV, 50Hz |
| Max peration voltage | 252kV |
| Environment temperature | -40℃~+40℃ |
| Rated operating temperature of conductor | 90℃ |
| Max temperature of cable conductor at short circuit | 250℃ |
| The cross section of the cable shall apply | 240~2500mm² |
| Apply the height of the altitude | ≤1000m (more than 1000m can be separately designed) |
| Pollution level | Suitable for high polluted area (IV) high salt fog coastal areas |
| Partial dischange test (at ambient temperature, 190kV) | NO ddelectable discharge at the declared sensitivity (5pC or better) |
| Heating cycle voltage test (254kV, 95℃~100℃, heating 8h, cooling 16h) | Completed 20 cycles |
| Partial dischange test (at high temperature, 190kV) | NO ddelectable discharge at the declared sensitivity (5pC or better) |
| Impluse voltage test followed by a power frequency voltage test - Impluse voltage test (95℃~100 C, ±1050kV, 10times, respectively) - Power frequency voltage test (254kV, 15min) | NO breakdown or flashover NO breakdown or flashover |
| Sealing test for the terminations assembled a. Press leakage test ( (0.2±0.01 )MPa, 1h) b. Vacuum leakage increase -Pressure increment (B-A) | NO leakage of gas 60 Pa |
Product size
220kV porcelain sleeve type outdoor terminal is designed for ultra high voltage transmission systems, providing superior electrical insulation and dependable mechanical strength for outdoor installations. It features a high quality porcelain housing that offers excellent resistance to weather, UV radiation, pollution, and temperature variations. The optimized internal stress control structure ensures uniform electric field distribution, reducing the risk of partial discharge and insulation failure. With reliable sealing performance and durable construction, this terminal ensures safe and stable connection between high voltage cables and overhead lines or substations.
Keyword:
220kV Porcelain Sleeve Type Outdoor Terminal
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Telephone
Telephone
Address
No. 5 Datian Road, Guanlin Town, Yixing City