SF6-40.5 Indoor Sulfur Hexafluoride Circuit Breaker
Production Introduction
Overview:
SF6-40.5 Indoor Sulfur Hexafluoride Circuit Breaker is an indoor power device in an AC 50Hz three-phase system used in industrial and mining enterprises, power plants, substations and power systems.
SF6-40.5 Indoor Sulfur Hexafluoride Circuit Breaker is used as a control high-voltage electrical equipment and can be used for frequent operation occasions, and can also be used as a circuit breaker and a circuit breaker for the switching capacitor bank.
Main parameters：
Rated voltagel is 40.5kV and the current is rated at 1250A and the short-circuit opening current is rated at 31.5kA.
Advantage:
The product technology of circuit breaker has reached the leading level, which has the following advantages:
■ No operating overvoltage: The inherent characteristics of SF6 gas are combined with the arc blowing technology to avoid re-ignition and over-operation
Voltage.
■ Excellent mechanical properties: with our company's independent research and development of VSH modular spring actuation mechanism, compact layout, simple structure,
Mechanical life up to 10,000 cycles.
■ Lightweight and convenient operation: The circuit breaker adopts lead screw nut propulsion device and can be easily moved in the switch cabinet.
■ Good insulation performance: to meet the requirements of high altitude, condensation and Class II dirt environment.
■ Strong corrosion resistance: the mechanism parts adopt advanced surface treatment technology and lubrication technology to improve the wear resistance of the product
Damage and corrosion resistance to ensure the reliability of the product under harsh conditions.
■ Good conductivity: The conductive circuit adopts advanced process treatment to fully ensure its superior conductivity.
■ Stable performance: the use of assembly line production mode, through the special commissioning tooling, advanced testing equipment, strict quality
Management procedures and other control means to ensure stable and reliable product performance.
Specification
The main technical parameters of circuit breakers：
| No. | Item | Unit | Data | ||
| 1 | Rated Voltage | kV | 40.5 | ||
| 2 | Rated Insulation(1min power frequency withstand voltage) | kV | 95 | ||
| 3 | Rated Insulation(Rated lightning impulse withstand voltage) | kV | 185 | ||
| 5 | Rated Current | A | 1250 / 1600 | ||
| 6 | Rated short-circuit breaking current | kA | 25 / 31.5 | ||
| 7 | Rated order of operations | / | O-0.3S-CO-180S-CS | ||
| 9 | Rated short-circuit opening and closing current（Peak） | kA | 63 / 80 | ||
| 10 | Rated peak withstand current | kA | 63 / 80 | ||
| 11 | Rated withstand current for short periods | kA | 25 / 31.5 | ||
| 12 | Rated short circuit duration | s | 4 | ||
| 17 | Rated operation voltage | V | AC/DC220 , AC/DC 110 | ||
| 18 | Mechanical Lifetime | t | 10000 | ||
Prodection details
Product outline and installation dimensions：
（Unit:mm）
Company Profile
Shaanxi Huadian Electric Co., Ltd. is located in Baoji High-tech Development Zone, Shaanxi Province, China. It is a modern high-tech enterprise specializing in the production of vacuum circuit breakers integrating R&D, manufacturing and sales.
Shaanxi Huadian products have been widely used in power plants, metallurgy, petrochemicals, railways, mines, radio and television, urban construction and rural power grid reconstruction projects, and are well received by users for their high-quality products and services.
Production Workshop
Prodect qualification
Certifications
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