Our Products Suian low-voltage electrical products

The ZGS□-12 combined transformer is a compact, fully sealed American-style box transformer designed for cable distribution networks. Integrating high-voltage control, protection, and distribution equipment, it offers flexible ring-main or terminal power supply. Featuring low-loss transformers and plug-in dry-type fuses, it suits various low-voltage feeder needs. Its compact, fully insulated design ensures safety and reliability for urban and rural power grids.

40.5kV and 12kV box-type step-up transformers for wind power and photovoltaic (solar) applications. Designed for the growing renewable energy market, these transformers efficiently boost the standard 690V output from wind turbines or solar panels to a higher voltage (40.5kV/12kV) for effective power collection and transmission within the farm grid. They are engineered to meet the specific demands and environmental conditions of renewable energy projects in China.

The S□-Series three-phase dry-type distribution transformers are energy-efficient solutions designed for superior performance and reliability. Featuring epoxy resin-encapsulated coils, they offer enhanced fire safety, low maintenance, and compact design. This series of products includes SCB18, SCB14, SCB13, SCE312 and other series. To meet different energy standards, these transformers are suitable for commercial, industrial and harsh environments. With capacities up to 2500kVA and voltage levels ≤10kV, they ensure low loss, quiet operation, and strong short-circuit resistance.

The S□ series three-phase oil-immersed distribution transformer is an energy-efficient solution designed for daily lighting and factory power applications. With capacities up to 2500kVA and voltage levels up to 6-10kV, it features low loss, low noise, and high short-circuit resistance. Available in multiple series (S22, S20, S13, S11), it meets various national energy efficiency standards (Level 1-3), allowing customers to select the ideal model based on their needs.

The Indoor high voltage vacuum circuit breaker series is a specialized, high-performance product line designed for indoor high-voltage power distribution systems, integrating a variety of functional handcarts to meet different application needs such as circuit protection, voltage transformation, electric energy metering and electrical isolation. This series features standardized configuration, stable operation and strong compatibility, widely used in high-voltage switch cabinets, power distribution rooms, industrial and mining enterprises and urban power supply networks, providing reliable support for the safe and stable operation of indoor power systems.

The XGN15-12(F) and XGN15-12(F·R) are 12kV, 630A fixed indoor AC metal-enclosed switchgear units designed for reliable power control and protection. Ideal for ring main or radial power supply systems, they are particularly suited for prefabricated substations. Equipped with SF6 load switches or fuse-combination load switches, this next-generation switchgear offers compact design, simple operation, and high reliability, making it an excellent choice for urban grid renovation and construction projects.

Our environmentally friendly, air-insulated AC metal-enclosed switchgear is a reliable and compact solution for 12kV/50Hz power distribution. Developed with advanced technology, it is designed for receiving and distributing electrical energy in substations, industrial plants, and urban complexes. As an SF6-free product, it supports green grid initiatives. Its small size, easy installation, and flexible operation make it a cost-effective choice for modernizing electrical infrastructure.

The MNS low-voltage withdrawable switchgear, developed through advanced technology and comprehensive improvements, represents one of China's most advanced solutions in its category. It is designed for AC 50(60)Hz systems up to 660V and 5000A, ideal for power distribution and motor control across various sectors like power plants, industrial facilities, and infrastructure projects. The equipment features a modular design with reliable mechanical interlocking for enhanced safety and operational reliability.

The KYN28A-12 (GZS1-12) is a 3.6-12kV, 50Hz, indoor AC metal-clad, middle-mounted switchgear designed for single busbar segmented systems. It serves as a high-performance distribution solution for power plants, industrial facilities, substations, and large motor control. Complying with GB, IEC, and DL standards, it features comprehensive safety interlocks, ensuring reliable control, protection, and monitoring.

The KGNX-12 is a 3.6-12kV indoor AC metal-clad fixed switchgear, integrating a compact, multi-functional vacuum circuit breaker or load switch. Designed for power reception, distribution, control, and protection in three-phase 50(60)Hz systems, it is ideal for substations, industrial plants, and high-rise buildings. Its miniaturized design (W500xD940xH2000mm) saves up to 58% space compared to traditional models like KYN 28-12, offering superior flexibility and reliability.

The HXGN17-12 type box-type fixed metal enclosed switchgear is a robust AC high-voltage solution designed for 12kV, 50Hz three-phase systems. It is primarily used for power distribution and protection in ring main networks, terminal power supply networks, and industrial electrical installations. Complying with both GB3906 and IEC298 international standards, it ensures reliable performance for receiving and distributing electrical energy, and is also suitable for integration into compact substations.

The GKG-1250/10(6) mining high-voltage switchgear is a versatile, fully integrated distribution solution for 3.6-12kV, 50Hz power systems. Designed for underground and surface substations in mines, metros, wind power, and industrial plants, it performs power reception, distribution, and control for large motors. Complying with strict mining safety standards, it features comprehensive mechanical interlocking for operational safety, a robust modular design, and an upgraded current rating up to 1250A to meet growing high-capacity demands.

The YB□ series prefabricated substation is a compact, integrated solution for power distribution. Combining high-voltage equipment, transformer, and low-voltage panels in one robust enclosure, it's ideal for urban complexes, residential areas, industrial parks, and temporary sites. It offers significant space savings, reliable operation, and flexible configurations like ring-main or dual power supply. Compliant with GB/T 17467-2020, it ensures safe, efficient, and mobile power distribution.

EPT-10 is a multi-functional 10-kilovolt outdoor electronic voltage sensor, specially designed for powering intelligent terminals in modern distribution networks. It adopts a charging-powered structure and is applicable to AC systems. At the same time, it can also be effectively used as a DC sensor. This sensor is sturdy in structure and reliable in performance, capable of achieving precise voltage monitoring and supporting smart grid applications.

The DEVT-10 plug-type voltage sensor is a compact and reliable component specifically designed for integration into ring network cabinets. Made with durable epoxy resin insulation and featuring a fuse-protected primary winding, it serves a dual role by providing both standard 100V measurement signals and a 220V power supply for operating mechanisms. Its plug-in design ensures easy installation and compatibility with various switchgear configurations.

This Integrated Voltage and Current Combination Sensor is designed for intelligent circuit breakers in State Grid primary-secondary integration systems. It features built-in voltage/current sensors and energy-taking components within the pole, enabling simultaneous acquisition of phase sequence, zero sequence, voltage, and current signals while outputting 2-5W power supply. Customizable to user specifications, it ensures reliable grid monitoring and power delivery. Product model: YTJL-10, 15, 24WJ.

The YTJL-10WF series is a secondary fusion electronic combined sensor designed for modern smart grids. Fully compliant with State Grid primary-secondary fusion specifications and the T/CES 018-2018 group standard, it integrates voltage, current, and power sensing in one compact unit. Engineered for direct assembly with circuit breakers, it enables the creation of intelligent vacuum circuit breakers with easy installation, low power consumption, high accuracy, and stable measurement performance.

The LZZBW-10(12) is a durable outdoor current transformer designed for reliable performance in 10kV/12kV power distribution networks. Featuring a robust, weatherproof epoxy resin casting construction, it ensures long-term stability in exposed environments up to 3500 meters. With an extensive current ratio range from 5A to 1500A (selectable 1A/5A secondary) and an integrated 0.2S/0.5/10P/10P accuracy class combination, this compact unit efficiently provides precise metering, measurement, and dual protection functionalities.

The LZZBJ71-35 is a robust outdoor current transformer engineered for 35kV power transmission and distribution lines. Utilizing advanced outdoor epoxy resin vacuum casting technology, it ensures exceptional durability and long-term insulation integrity in harsh environments. With a wide current ratio range (10-1500/5(1)A) and a versatile 0.2S/0.5/10P/10P accuracy combination, it integrates precise metering, measurement, and dual protection functions into a single, reliable unit, standards for high-altitude and wide-temperature operations.

The LZZBJ9-10A and LZZBJ9-10C are precision indoor current transformers designed for 10kV medium-voltage applications. Featuring a robust insulation level of 12/42/75kV, they offer versatile current conversion with a wide primary range (10~1500A) to both 5A and 1A secondary standards. Available in multiple accuracy combinations , these compact, high-performance CTs deliver reliable metering and protection for modern electrical systems, fully compliant with GB/T 20840.2-2014.

The LZZB9-35 is a high-performance indoor current transformer designed for 35kV medium-voltage power systems. Featuring a robust insulation level of 40.5/95/185kV, it delivers exceptional measurement and protection accuracy with versatile ratio options from 20~1500/5(1)A. This model offers flexible multi-functionality through its standard 0.2S/0.5/10P/10P combination, supporting energy metering, ensuring reliable and efficient operation for diverse industrial applications.