| Customization: | Available |
|---|---|
| Breaking Capacity: | Low Voltage Circuit Breakers |
| Operation: | Electric Type |
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ZW7-40.5 Outdoor High-Voltage AC Vacuum Circuit Breaker.
1.Application: in 40.5kV power system, for making and breaking load current, overload current and short circuit protection.
Standards: IEC 62271-100
Parameters: Rated voltage: 40.5kV.
Rated current: 1250~2000A.
Rated short-circuit breaking current: 20kA, 25kA, 31.5kA.
Features: 1.Simple construction and easy installation.
2.High insulation level and waterproof.
3.Both spring and magnetic operation mechanism available.
4.Internal current transformers can realize multiple transformation ratio output, high secondary output.
2.Type and Interpretation
1 Ambient air temperature:-25~+40ºC
2 The influence of sunshine radiation when 1000W/m²should be taken into consideration. 3 Altitude:≤2000m 4 Pollution level:≤III
5 Wind speed:≤34m/s (Equal to 700Pa over cylindrical surface) 6 The external shocking and earthquake could be neglected.
7 The amplitude of electromagnetic interferencein the secondary system≤1.6kV. Note:Customized products for other special working conditions are available onyour requirements.
1.1 Suitable for three-phase AC 50Hz distribution lines of 35kV and below.
1.2 Mainly used for control and protection in power systems, capable of interrupting and closing load currents, overload currents, and short-circuit currents.
2.1 High-sealing performance with a pillar-type fully enclosed structure:
Arc-extinguishing chamber and insulation cylinder are filled with vacuum silicone grease, ensuring good sealing, aging resistance, and high voltage withstand capability.
Utilizes vacuum arc extinguishing and silicone grease insulation, offering excellent breaking performance and high safety reliability.
High insulation level with a built-in heater in the enclosure to prevent moisture on electrical components, suitable for high-altitude and low-temperature environments.
Effectively addresses condensation issues, avoiding defects caused by gas and oil filling.
Long service life with minimal maintenance requirements.
2.2 Specially designed current transformers with multiple secondary windings, high precision, and large capacity.
2.3 Various flexible installation structures: The circuit breaker is available in side-mounted, center-mounted, and built-in insulation rod configurations, offering convenience for user selection.
Overall and Installation Dimension
Installation base of circuit breaker ZW7-40.5(recommended)
ZW7-40.5 overall dimension
Henan Energy Electric Equipment Co., Ltd. was established in 2011 and is an excellent and reliable power equipment manufacturer in China. The company mainly develops and produces oil-immersed transformers, dry-type transformers, box-type substations, high-voltage switches, and medium and low voltage complete sets of equipment. The equipment put into production and operation of the project advocates energy saving, intelligence, informatization, and mechanization. The company has established the Henan Triangle Energy-saving Transformer Engineering Technology Research Center, with 71 utility model patents and 15 invention patents. With years of accumulation in the transformer industry and strong technological innovation capabilities, HZEC products are sold to the Middle East, North America, South America, Europe, Southeast Asia, Africa, and other regions, covering more than 40 countries.
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