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Zhejiang Yukai Electric Power Technology Co., Ltd. is a company engaged in the sales of high and low voltage electrical appliances, complete equipment, and box-type substations.
Have Its Own Product Development Team
With Advanced Production Equipment And Production Lines
Provide Comprehensive Solutions And Customized Services
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Our Products

Main Products

ZW7-40.5

ZW7-40.5

ZW7-40.5 is a reliable outdoor high voltage vacuum circuit breaker designed for 40.5kV medium and high voltage power systems. Complying with IEC and GB standards, it is widely deployed in outdoor substations, overhead transmission lines and industrial power distribution projects for load switching and system fault protection.
Adopting mature vacuum arc extinction technology, the breaker delivers strong breaking performance and stable insulation. It features arc-free, low-noise and pollution-free operation, supporting frequent switching and long-term full-load stable operation.
Fitted with a high-stability spring operating mechanism, ZW7-40.5 operates smoothly and flexibly with low mechanical wear. It can quickly cut off short-circuit faults and ensure long-term reliable power grid operation.
The integrated fully sealed structure undergoes professional outdoor anti-corrosion treatment, offering excellent waterproof, dustproof and anti-aging performance. It adapts to high-altitude, humid, saline-alkali and heavily polluted harsh outdoor environments.
With a rational overall layout and sturdy structure, the equipment is easy to install and debug on site. It requires minimal daily maintenance and effectively reduces long-term operation costs of power distribution projects.
As essential core protection equipment for 40.5kV outdoor power systems, ZW7-40.5 vacuum circuit breaker features stable performance and high safety. We provide global customers with factory direct supply, complete certifications and professional after-sales service.

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LW8-40.5

LW8-40.5

The LW8-40.5 is a high-performance outdoor SF6 circuit breaker developed for 35kV/40.5kV three-phase AC power distribution systems. Adopting sulfur hexafluoride gas as insulation and arc extinguishing medium, this breaker delivers excellent dielectric strength and reliable short-circuit breaking performance, ensuring safe and stable operation of power transmission lines and substation equipment.
Equipped with a high-precision spring operating mechanism, the LW8-40.5 SF6 circuit breaker features flexible opening and closing action, low mechanical failure rate and no frequent maintenance. The fully sealed integral gas chamber structure effectively reduces gas leakage, with an ultra-low annual leakage rate, adapting to long-term outdoor operation in complex environments such as high temperature, severe cold, humidity and dust.
This model supports multiple rated current and breaking capacity specifications, covering 630A, 1250A, 1600A and 2000A, fully complying with IEC and international industry standards. It is widely applicable in power grid reconstruction, industrial and mining enterprises, photovoltaic power stations, wind power plants and urban outdoor substations, undertaking circuit switching, overload protection and short-circuit fault protection functions.
With the advantages of compact structure, stable performance, long service life and low operation cost, the LW8-40.5 outdoor SF6 circuit breaker has become a mainstream and reliable high-voltage switch device for medium and high voltage outdoor power systems.

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ZW32-12-630

ZW32-12-630

ZW32-12/630 is a classic 12kV 630A outdoor high voltage vacuum circuit breaker for medium voltage power distribution systems. Compliant with IEC and GB standards, it is widely used in urban and rural power grids, overhead distribution lines and outdoor substations for load switching and fault protection.
Adopting advanced vacuum arc extinction technology, this circuit breaker features reliable breaking capacity and excellent insulation performance. It supports arc-free, low-noise and pollution-free operation, adapting to frequent switching and long-term stable 630A full-load operation.
Equipped with a high-reliability spring operating mechanism, ZW32-12/630 operates flexibly and stably with low mechanical wear. It can quickly cut off short-circuit faults to ensure safe and stable power grid operation.
The fully sealed integrated structure with professional anti-corrosion treatment provides great waterproof, dustproof and anti-aging performance. It works steadily in humid, high-altitude, polluted and other harsh outdoor environments.
With compact structure and lightweight design, the equipment is easy to install on site and requires minimal daily maintenance, effectively reducing power distribution operation costs.
As mainstream protective equipment for 12kV outdoor power systems, ZW32-12/630 features high safety and stable performance. We provide global customers with factory direct supply, complete certifications and professional after-sales service.

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ZW32-33/1250

ZW32-33/1250

ZW32-33/1250 (VCB-33) is a high-current outdoor vacuum circuit breaker dedicated to 33kV medium voltage power distribution systems. Complying with IEC and GB standards, it is widely adopted in urban and rural power grids, outdoor substations and industrial power projects for stable load switching and reliable fault protection.
Adopting advanced vacuum arc extinction technology, the breaker features excellent breaking performance and stable insulation. It supports long-term stable 1250A high-current full-load operation with arc-free, low-noise and pollution-free working status.
Equipped with a high-reliable spring operating mechanism, ZW32-33/1250 operates flexibly and stably with low mechanical wear. It can quickly cut off short-circuit faults and ensure safe and continuous power grid operation.
The fully sealed integrated structure is treated with professional outdoor anti-corrosion technology, featuring outstanding waterproof, dustproof and anti-aging performance. It adapts to high-altitude, humid and polluted harsh outdoor environments.
With compact structure and reasonable layout, the equipment is easy to install and debug on site. It requires minimal daily maintenance and effectively reduces long-term operation costs of power distribution projects.
As core high-current protection equipment for 33kV outdoor power systems, ZW32-33/1250 vacuum circuit breaker owns stable performance and high safety. We provide global customers with factory direct supply, complete certifications and professional after-sales service.

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33kv Outdoor High-Voltage Gang Isolator

33kv Outdoor High-Voltage Gang Isolator

RH-B-33 is a professional export-type electrical insulation accessory developed for global medium and low voltage power distribution systems. Manufactured in strict accordance with international IEC standards, this product is specially optimized for overseas power grid reconstruction, industrial power distribution, photovoltaic, wind power and other new energy supporting projects, featuring high safety, strong stability and excellent environmental adaptability.
Made of high-purity high-performance insulating materials, RH-B-33 has superior dielectric strength, excellent flame retardancy and strong mechanical toughness. It effectively resists ultraviolet radiation, high and low temperature alternation, humid weather, dust and chemical corrosion, avoiding aging, cracking and breakdown problems during long-term outdoor and indoor operation. The optimized integrated molding process ensures precise size, compact structure and perfect assembly compatibility with mainstream high and medium voltage switchgear equipment.
All RH-B-33 export accessories have passed strict international quality inspection and safety tests. With stable pressure resistance, insulation performance and anti-breakage ability, it can eliminate potential operational risks of power equipment and fully meet overseas project acceptance specifications and grid operation requirements. The standardized production process guarantees consistent batch quality, high versatility and zero maintenance advantages, greatly reducing later operation and maintenance costs for power projects.
As a cost-effective export power distribution accessory, RH-B-33 is widely supplied to Southeast Asia, the Middle East, Africa, Europe and other international markets. It is highly recognized by power engineering contractors, electrical equipment manufacturers and grid operators, becoming a reliable supporting component for global power distribution and new energy construction projects.

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Relies on high-quality productstrength and comprehensive quality services. We have signed long-term strategiccooperation agreements with major companies and have gained unanimous favor fromcustomers due to stable and reliable product performance and high-quality productquality.
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