# ZhengChao Electric ## Posts - [It’s time for tech and biotech to unite — here’s why](https://zcelektric.com/its-time-for-tech-and-biotech-to-unite-heres-why/): Customers always look for ways to make life better. Use this expression as an alternative to the common phrase “new and improved.” - [5 questions every biotech CISO should ask software providers](https://zcelektric.com/5-questions-every-biotech-ciso-should-ask-software-providers/): If you’re the one responsible for keeping track of company meetings, here's everything you need to know about writing effective work ad. - [Mysteries of the human genome using CRISPR](https://zcelektric.com/mysteries-of-the-human-genome-using-crispr/): This is another way of saying, “We’ve been in business for a long time because people love our products and trust us.” ## Pages - [Dry-Type Transformer](https://zcelektric.com/dry-type-transformer/): Dry-Type Transformer - [Oil-lmmersed Transformer](https://zcelektric.com/oil-lmmersed-transformer/): Oil-lmmersed Transformer - [Vacuum Circuit Breaker](https://zcelektric.com/vacuum-circuit-breaker/): Vacuum Circuit Breaker - [Low-Voltage Switchgear](https://zcelektric.com/low-voltage-switchgear/): Low-Voltage Switchgear - [Ring Main Unit](https://zcelektric.com/ring-main-unit/): Ring Main Unit - [Gas-Insulated Switchgear](https://zcelektric.com/gas-insulated-switchgear/): Gas-Insulated Switchgear - [Cases](https://zcelektric.com/cases/): Project cases POWER BOX PROJECT https://zcelektric.com/wp-content/uploads/2026/03/redpandacompress_POWER-BOX-PROJECT.mp4 - [新闻与动态](https://zcelektric.com/%e6%96%b0%e9%97%bb%e4%b8%8e%e5%8a%a8%e6%80%81/): 新闻与动态 It’s time for tech and biotech to unite — here’s why August 31, 2020 Uncategorized 5 questions every biotech CISO should ask software providers March 12, 2020 Uncategorized Mysteries of the human genome using CRISPR March 12, 2020 Uncategorized - [My account](https://zcelektric.com/my-account/) - [Checkout](https://zcelektric.com/checkout/) - [Cart](https://zcelektric.com/cart/) - [Shop](https://zcelektric.com/shop/) - [Contact us](https://zcelektric.com/contact-us/): Contact us get in touch Headquarters Address: No. 23 Zhujin Road, Longhu District, Shantou City, Guangdong Province, China TRANSFORMER FACTORY Address: No.203 Yingbin South Road, Longhua Street, Longhu District, Shantou City, Guangdong Province, China Guangzhou Office: Address: Room 201, Building A, Building 3, No.3 Xiangshan Road, Science City, Huangpu District, Guangzhou City, Guangdong Province, China Email: sales@stzcglobal.com Linkedin Whatsapp Leave a message Full Name Email Phone Number Message Send message - [Air-Insulated Switchgear](https://zcelektric.com/air-insulated-switchgear/): Air-Insulated Switchgear - [About us](https://zcelektric.com/about-us/): About us About Zhengchao Complete electric solution 0 + Years of history 0 + Employees 0 + Square meters Our founder Mr. Hanrong Wu started his entrepreneurship journey in Shantou city, South of Guangdong province, in 1980 amid China’s “reform and opening-up,” when small-scale private businesses were gradually allowed to operate. At this time, it was a small workshop business. After a decade, the business grew to a bigger-scale and more industrialized factory. In 1991, Shantou Special Economic Zone Electrical Electrical Instrument Complete Equipment Factory was established. In 1996, we received the ISO-9000 Quality Certification. In 2015, we obtained the Civil […] - [Blog](https://zcelektric.com/blog/) - [Home](https://zcelektric.com/): Zhengchao Electric Your expert in smart electrical safety More Reliable, More Secure. Explore products Know about us About us Zhengchao Electric is a professional manufacturer and solution provider of low- and medium-voltage switchgear and transformer. We are a top supplier for China’s state-owned power grid companies, power plants and nuclear plants. With more than 45 years of history focusing on China’s power grid market, we take pride in our proven product quality and safety. Leveraging our design experience and manufacturing capabilities, we extend our services to global clients to provide customized OEM/ODM services. Explore more Our Product Categories Air-Insulated Switchgear […] ## Products - [Amorphous Metal Oil-Immersed Transformer](https://zcelektric.com/product/amorphous-metal-oil-immersed-transformer/): Amorphous Metal Oil-Immersed Transformer The SH21-ML series represents a new generation of energy-efficient distribution transformers, utilizing advanced amorphous metal core technology to significantly reduce no-load losses compared to conventional silicon steel transformers. Designed for oil-immersed applications, this series delivers exceptional reliability, low operating noise, and enhanced overload capacity. Ideal for industrial, commercial, and utility grids, the SH21-ML offers a cost-effective solution for achieving long-term energy savings and reduced carbon footprint. - [Hermetically Sealed Oil-Immersed Transformer](https://zcelektric.com/product/hermetically-sealed-oil-immersed-transformer/): Hermetically Sealed Oil-Immersed Transformer The S20-M oil-immersed distribution transformer is a high-efficiency energy-saving product. Its fully sealed corrugated tank effectively isolates the insulating oil from air exposure, significantly enhancing insulation stability and anti-aging performance. Combined with an optimized electromagnetic design, the S20-M series reduces both no-load and load losses, delivering long-term energy savings. This series is widely used in urban distribution networks, industrial parks, commercial complexes, and residential communities. - [Dry-Type Transformer](https://zcelektric.com/product/scb-series-dry-type-transformer/): Dry-Type Transformer Zhengchao's SCB series dry-type transformer utilizes optional design and advanced casting technology, and has have the advantages of low partial discharge, low noise, and strong heat dissipation capacity. It can also operate stably under forced air cooling conditions at rated load for extended periods. The SCB Series is widely used in power transmission and distribution systems, and is suitable for a variety of settings such as hotels, airports, high-rise buildings, commercial centers, residential areas, subways, smelting power plants, ships, and offshore drilling platforms. - [Hermetically Sealed Oil-Immersed Transformer](https://zcelektric.com/product/s11-m-type-hermetically-sealed-oil-immersed-transformer/): Hermetically Sealed Oil-Immersed Transformer The S11-M series of 10/20kV hermetically sealed oil-immersed power transformers offer advantages such as low loss, low noise, and high efficiency. Compared to conventional oil-immersed transformers, the hermetically sealed design eliminates the oil conservator. The expansion and contraction of the oil volume are accommodated by the elastic orrugated panels in the corrugated tank. By isolating the transformer from the atmosphere, this design prevents and slows down the deterioration of the oil and the aging of insulation, thereby enhancing operational reliability. - [24kV Indoor Vacuum Circuit Breaker](https://zcelektric.com/product/24kv-indoor-vacuum-circuit-breaker/): 24kV Indoor Vacuum Circuit Breaker - [12kV Indoor Vacuum Circuit Breaker](https://zcelektric.com/product/12kv-indoor-vacuum-circuit-breaker/): 12kV Indoor Vacuum Circuit Breaker The VS1 series is the latest indoor high-voltage vacuum circuit breaker, suitable for substations, power plants, petrochemical plants and other engineering projects that require frequent operation. The VS1 series is suitable for the electrical facilities in three-phase AC current system with rated voltage of 3.6~24kV and frequency of 50/60Hz for controlling and protecting equipment.With the latest-generation of modular spring operating mechanism, the product has passed M2/C2/E2 class tests. Both air insulated (with epoxy resin) and solid sealing pole (with automatic pressure gelation technology) types are available. - [Low-voltage Switchgear](https://zcelektric.com/product/sgzpk-low-voltage-switchgear/): Low-voltage Switchgear SGZ (PK) switchgear can be used for multi-circuit layout, flexible arrangement of multi-section branch busbar, with high protection level. The product can improve the space utilization rate of the power distribution room, and can be applied in different scenarios. - [Low-voltage Switchgear](https://zcelektric.com/product/sgzgck3-low-voltage-switchgear/): Low-voltage Switchgear SGZ (GCK3) low voltage switchgear has the characteristics of flexiable structure, high protection level and convenient maintenance. lt can be equipped with universal modular design of hand-pull, hand-crank, andmotorized operation to meet different requirements of application scenarios. - [Low-voltage Switchgear](https://zcelektric.com/product/sgzgcs-low-voltage-switchgear/): Low-voltage Switchgear The SGZ (GCS) type AC low voltage switchgear can be designed as fixed type, fixed partition type or withdrawable type. The product has the advantages of high breaking capacity, good dynamic thermal stability, flexible electrical configurations, convenient modular assembly and high protection level.. - [12kV Gas-insulated Ring Main Unit (Dry Air)](https://zcelektric.com/product/12kv-gas-insulated-ring-main-unit-dry-air/): 12kV Gas-insulated Ring Main Unit (Dry Air) ZCKQG intelligent dry air insulated ring main unit is developed and produced according to IEC standards. The product adopts a metal-enclosed gas sealed design, and the low-pressure dry air gas is used as the insulating medium to ensure that high-voltage components are waterproof and dustproof. The components can operate stably under different environments/altitude without maintenance. The product is equipped with intelligent control and protection device, integrating multiple functions such as control, protection, measuremen, communication, and fully meets the requirements of distribution network automation. As a three phase AC single/double busbar and bus section indoor equipment, the ZCKQG can be applied in power plants, power stations, substations, buildings, industrial and mining enterprises, subways and electrified railways. - [40.5kV SF₆ Gas-insulated Ring Main Unit](https://zcelektric.com/product/40-5kv-sf%e2%82%86-gas-insulated-ring-main-unit/): 40.5kV SF6 Gas-insulated Ring Main Unit - [24kV SF₆ Gas-insulated Ring Main Unit](https://zcelektric.com/product/24kv-sf%e2%82%86-gas-insulated-ring-main-unit/): 24kV SF₆ Gas-insulated Ring Main Unit - [12kV Gas-insulated Switchgear (Dry Air)](https://zcelektric.com/product/12kv-gas-insulated-switchgear-dry-air/): 12kV Gas-insulated Switchgear (Dry Air) The ZCKQC-12 gas-insulated switchgear is designed for distribution networks, utilizing dry air as the insulation medium instead of SF6or other greenhouse gases, aligning with environmental principles and minimizing potential ecological impact. The primary components are hermetically sealed in a stainless steel gas compartment with IP67 protection, effectively resisting moisture, dust, and salt spray to ensure safe and reliable operation. - [40.5kV SF₆ Gas-insulated Switchgear](https://zcelektric.com/product/40-5kv-sf%e2%82%86-gas-insulated-switchgear/): 40.5kV SF₆ Gas-insulated Switchgear As a new generation of gas insulated switchgear, ZCSFC adopts a metal-enclosed gas sealed cubicle design. The low-pressure SF6 gas is used as the insulating medium to ensure that high voltage components are waterproof and dustproof. The components can operate stably under different environments/altitude without maintenance. And the solid-sealed pole is used in vacuum interrupter, achieving a lean structure and improving product stability and reliability. The product is equipped with intelligent control and protection device, integrating multiple functions such as control, protection, measurement, communication, and fully meets the requirements of distribution network automation. As a three-phase AC single/double busbar and bus section indoor equipment, the ZCSFC can be applied in power plants, power stations, substations, commercial buildings, - [12kV SF₆ Gas-insulated Ring Main Unit](https://zcelektric.com/product/12kv-sf%e2%82%86-gas-insulated-ring-main-unit/): 12kV SF6 Gas-insulated Ring Main Unit The ZCSF-12 features a metal-enclosed gas-sealed design, utilizing low-pressure SF6 as the insulation medium. It ensures waterproof and dustproof high-voltage components, enabling maintenance-free operation across diverse environments and altitudes. The vacuum interrupter employs solid-sealed poles for a compact structure, enhancing stability and reliability. Equipped with an intelligent control and protection unit, it integrates multiple functions—including control, protection, measurement, and communic to fully meet network automation requirements. The ZCSF-12 is suitable for power plants, substations,commercial buildings, industrial facilities etc. - [12kV SF₆ Gas-insulated Switchgear](https://zcelektric.com/product/12kv-sf%e2%82%86-gas-insulated-switchgear/): 12kV SF6 Gas-insulated Switchgear As a new generation of gas insulated switchgear, ZCSFC adopts a metal-enclosed gas sealed cubicle design. The low-pressure SF6 gas is used as the insulating medium to ensure that high voltage components are waterproof and dustproof. The components can operate stably under different environments/altitude without maintenance. And the solid-sealed pole is used in vacuum interrupter, achieving a lean structure and improving product stability and reliability. The product is equipped with intelligent control and protection device, integrating multiple functions such as control, protection, measurement, communication, and fully meets the requirements of distribution network automation. As a three-phase AC single/double busbar and bus section indoor equipment, the ZCSFC can be applied in power plants, power stations, substations, commercial buildings, - [24kV Metal Clad Air-insulated Switchgear](https://zcelektric.com/product/24kv-metal-clad-air-insulated-switchgear/): 24kV Metal Clad Air-insulated Switchgear Zhengchao Electric’s KYN27 indoor metal clad withdrawable switchgear is used in three-phase AC power system with rated voltage of 12kV and rated frequency of 50/60Hz for receiving and distributing electric energy and for control protection and monitoring of circuits.The product is equipped with the VS1 vacuum circuit breaker developed in-house. It has five electrical precautions interlocking devices, preventing the push-pull of circuit breaker truck under load, preventing false opening/closing of circuit breaker, preventing power on/off of circuit breaker when earthing switch is in closed position; preventing entering the live compartment by mistake. The product is approved with internal arc classification IAC AFLR, loss of service continuity category LSC2B, and partition class PM. It is also equipped with reliable protection and control devices to further safeguard the equipment. - [12kV Metal Clad Air-insulated Switchgear](https://zcelektric.com/product/12kv-metal-clad-air-insulated-switchgear/): 12kV Metal Clad Air-insulated Switchgear Zhengchao Electric’s KYN27 indoor metal clad withdrawable switchgear is used in three-phase AC power system with rated voltage of 12kV and rated frequency of 50/60Hz for receiving and distributing electric energy and for control protection and monitoring of circuits.The product is equipped with the VS1 vacuum circuit breaker developed in-house. It has five electrical precautions interlocking devices, preventing the push-pull of circuit breaker truck under load, preventing false opening/closing of circuit breaker, preventing power on/off of circuit breaker when earthing switch is in closed position; preventing entering the live compartment by mistake. The product is approved with internal arc classification IAC AFLR, loss of service continuity category LSC2B, and partition class PM. It is also equipped with reliable protection and control devices to further safeguard the equipment. [comment]: # (Generated by Hostinger Tools Plugin)