SZ13 Series On-Load Tap Changer and Voltage Regulating Transformer
The SZ13 series on-load tap-changing voltage and capacity regulating transformers are suitable for applications with seasonal load variations. When the load is light (or no load), the transformer can be switched to a lower tap, reducing its capacity and thereby minimizing core losses. These transformers are ideal for users in rural areas, forestry operations, salt farms, and other locations where electricity consumption fluctuates significantly and the cycles of change are relatively long. Since being put into operation, they have performed well, successfully achieving the intended goals of high reliability, substantial energy savings, convenient operation, and low manufacturing costs.
S20 Series Silicon Steel Core Transformers
The S20 series fully sealed oil-immersed transformers feature low losses, low noise, and zero pollution. They are suitable for outdoor (or indoor) installation and use, making them ideal distribution equipment for extensive transmission and distribution networks in factories, rural areas, and urban centers.
VS1-12 Side-Mount Indoor High-Voltage AC Vacuum Circuit Breaker
The VS1 (ZN63A) side-mounted indoor high-voltage vacuum circuit breaker (hereinafter referred to as the circuit breaker) is an indoor switchgear device used in 12kV power systems, serving as a protection and control unit for grid equipment and power equipment in industrial and mining enterprises. Thanks to the unique advantages of vacuum circuit breakers, they are particularly well suited for applications that require frequent operation at rated working current or for circuits that need to interrupt short-circuit currents multiple times. The circuit breaker features an integrated design that combines the operating mechanism with the circuit breaker body, functioning as a fixed installation unit; moreover, fixed-type circuit breakers can be equipped with corresponding interlocks to meet the requirements of fixed switchgear such as HXGN cabinets.
GGJ Low-Voltage Indoor Compensation Cabinet
The GGJ low-voltage indoor compensation cabinet is a new type of integrated indoor distribution reactive power compensation cabinet designed in accordance with the principles of economy, rationality, and reliability. It is suitable for distribution systems operating at 50 Hz and rated voltage of 380 V, including urban grid upgrades, rural grid renovations, industrial and mining enterprises, street lighting, and residential communities. The product boasts advantages such as a novel and well‑reasoned design, a high degree of protection, and convenient installation, commissioning, maintenance, and inspection. Compliant with GB/T 7251.1–2023 and GB/T 15576–2020, and having passed 3C certification, it is an ideal low‑voltage complete switchgear unit for current grid modernization projects.
VS1-40.5 Indoor High-Voltage Vacuum Circuit Breaker – Insulating Cylinder
This product is suitable for indoor high-voltage equipment with a rated voltage of 40.5 kV and a three-phase AC frequency of 50 Hz. It can be used by industrial and mining enterprises, power plants, and substations to switch load currents, overload currents, and short-circuit currents, and is also appropriate for applications involving frequent operations.
GGD Low-Voltage Fixed Switchgear
The GGD low-voltage fixed switchgear is suitable for power users such as power plants, substations, and industrial and mining enterprises, serving as a distribution system for AC 50 Hz with a rated operating voltage of 400 V and a rated current up to 3150 A. It is used for the conversion, distribution, and control of electrical energy in power, lighting, and distribution equipment. The product features flexible circuit configurations, strong practicality, and a novel structural design. It is one of the alternative products to China’s assembled, fixed-panel switchgear cabinets.
State Grid’s New Standard Electric Energy Metering Box
The non‑metallic enclosure of the power metering box is made from superior insulating materials that boast high insulation resistance and dielectric strength, effectively preventing electric leakage. These materials maintain excellent dielectric properties at high frequencies, do not reflect or block microwave propagation, and are rust‑proof for long‑term use. They are ideally suited for installation in areas with high pedestrian traffic or confined spaces, helping to prevent electric shock.
VS1-40.5E Indoor High-Voltage Vacuum Circuit Breaker – Solid-Encapsulated Pole
VS1-40.5 Indoor High-Voltage Vacuum Circuit Breaker is designed for indoor switchgear in 50 Hz, 40.5 kV AC power systems, serving as a protection and control unit for grid equipment and power equipment in industrial and mining enterprises. It is suitable for applications involving frequent operations at rated working current or for multiple short-circuit current interruptions.
SMC Low-Voltage Cable Distribution Box
The SMC low-voltage cable distribution box is manufactured by high‑temperature molding of fully insulated SMC polymer composite material. The entire enclosure is assembled by interlocking and fitting together its various functional components in a seamless, ring‑by‑ring fashion. It is also designed with built‑in rainproof and ventilation features. With high manufacturing precision, a novel and compact structure, and convenient assembly, the enclosure boasts a uniform, vibrant exterior color and is free from harmful substances such as halogens and heavy metals. In terms of operating environment, service life, fabrication, and installation, it significantly outperforms traditional metal enclosures.
Metal Low-Voltage Cable Distribution Box
The 0.4 kV low-voltage cable distribution box is a complementary piece of equipment for urban grid cableization upgrades, primarily used in public power grids. Based on the needs of transmission and distribution networks as well as end-users, it offers a variety of wiring configurations, enclosure types, and installation methods, enabling users to easily select the most suitable solution from a range of flexible and versatile options. In the construction and renovation of distribution networks, it serves as an ideal replacement for overhead feeders, providing reliable support. It is widely employed in three-phase low-voltage power transmission and distribution systems in outdoor public spaces such as substations and distribution stations, industrial and mining enterprises, streetsides, garden residential communities, high‑rise buildings, airports, and various construction and renovation projects—functioning as a complete, standardized device for distributing electrical energy via cables to other users or equipment.
ZW32-12 Series Pole-Mounted Circuit Breakers
The ZW32-12 indoor high-voltage vacuum circuit breaker, also known as an indoor pole-mounted vacuum circuit breaker, can switch and interrupt load current, overload current, and short-circuit current in power systems. It can be used directly for switching operations on 10kV equipment, and it can also be employed at sectionalizing points along 10kV distribution lines to ensure rapid isolation and removal of faults within that section.
ZW20-12/T Series Pole-Mounted Circuit Breakers
The product consists of three main components: the circuit breaker body, the operating mechanism, and the lifting device.
Circuit Breaker Body Structure: The circuit breaker body is composed of a conductive circuit, an insulation system, sealing elements, and a housing. The entire conductive circuit is formed by connecting the incoming and outgoing busbars, current-carrying contacts, flexible connectors, and the vacuum arc extinguishing chamber.
This product employs SF6 gas insulation. The incoming and outgoing line insulating bushings are made of epoxy resin and silicone rubber through integral casting. To reduce the switch’s footprint while maintaining adequate phase-to-phase insulation clearance, corner bushings are used for phases A and C, ensuring reliable external insulation. Internally, a composite insulation structure is adopted, enabling the product to achieve the required insulation levels even without SF6 gas filling.
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