State Power Investment Corporation’s Lop Nur 100 MW/400 MWh energy storage project is paired with a 400 MW photovoltaic power generation project.
The State Power Investment Corporation’s 100 MW/400 MWh energy storage project is paired with a 400 MW photovoltaic power generation facility, located in the Hotan Prefecture of Xinjiang. The equipment was supplied by Shaanxi Hante Smart Electric Equipment Co., Ltd., and comprises four SFZ20‑100000/110 kV oil‑immersed three‑phase, double‑winding, on‑load tap‑changing step‑up transformers, along with associated grounding transformers, station service transformers, neutral‑point complete sets, and auxiliary equipment. Centered on 110 kV step‑up transmission, the project is tailored to accommodate the intermittent nature of solar generation; its integrated energy storage system enables coordinated operation between solar and storage, ensuring stable grid connection and reliable power supply. It serves as a critical substation‑level infrastructure supporting the large‑scale clean energy base in Hotan, Xinjiang.
Project Overview
The State Power Investment Corporation’s 100 MW/400 MWh energy storage project is paired with a 400 MW photovoltaic power generation facility, located in the Hotan Prefecture of Xinjiang. The equipment was supplied by Shaanxi Hante Smart Electric Equipment Co., Ltd., and comprises four SFZ20‑100000/110 kV oil‑immersed three‑phase, double‑winding, on‑load tap‑changing step‑up transformers, along with associated grounding transformers, station service transformers, neutral‑point complete sets, and auxiliary equipment. Centered on 110 kV step‑up transmission, the project is tailored to accommodate the intermittent nature of solar generation; its integrated energy storage system enables coordinated operation between solar and storage, ensuring stable grid connection and reliable power supply. It serves as a critical substation‑level infrastructure supporting the large‑scale clean energy base in Hotan, Xinjiang.
Advantages and Features
1. Model and capacity compatibility with photovoltaic applications
• The main transformer selected is an SFZ20-100000/110kV unit, with a capacity of 100,000 kVA, a voltage ratio of 115±8×1.25%/36.5 kV, and a YN,d11 connection group, perfectly meeting the photovoltaic power plant’s requirement to step up its 35 kV output to 110 kV for grid integration.
• Cooling method: ONAF, designed to withstand Xinjiang’s high temperatures, intense solar radiation, and significant diurnal temperature variations in outdoor operating conditions.
2. On-load tap changer + photovoltaic‑storage system with strong adaptability
• Equipped with an on-load tap changer, it enables continuous, stepless voltage regulation online, rapidly responds to fluctuations in photovoltaic output, and is compatible with energy storage system charge–discharge control.
• Equipped with integrated online oil filtration and vacuum accessories to maintain oil quality over the long term, enhancing the equipment’s reliability during continuous operation.
3. High Insulation and High Protection Design
• High- and low-voltage/neutral-point equipment employs dry-type fiberglass-reinforced epoxy‑glass‑fiber porcelain bushings, offering excellent insulation performance, superior resistance to pollution flashover, and strong weatherability, making them well suited to the windy and sandy conditions of Northwest China.
• The fuel tank, radiator, control cabinet, and other components are made of stainless steel, with a guaranteed service life of 20 years, offering corrosion and dust resistance and requiring no maintenance.
4. Fully equipped and delivered in complete condition
• Each main transformer is equipped as standard with a complete set of accessories, including an oil conservator, pressure relief device, winding/oil temperature control system, forced‑air cooling system, terminal box, common‑box busbar, and bushings.
• Transformer oil shall be Karamay No. 45, with an additional 10% of reserve oil in drums and accompanying oil tanks; spare parts and special tools will be delivered together with the goods.
5. Enhancement of Stability and Monitoring
• Equipped with dual controls for winding and oil temperature, a gas relay, and a pressure relief device, providing multi‑layered protection to prevent fault escalation.
• The high‑voltage/neutral‑point bushing‑type CT is configured with a 0.5/5P30 dual winding, ensuring precise separation of metering and protection functions to meet grid dispatch and operation‑and‑maintenance requirements.
6. Integrated Neutral-Point Assembly
• Supplied as a complete set of four 110 kV neutral-point assemblies, including disconnect switches, surge arresters, discharge gaps, current transformers, and steel support structures; delivered as an integrated solution for convenient on-site installation and reliable grounding protection.
More cases
The State Power Investment Corporation’s 100 MW/400 MWh energy storage project is paired with a 400 MW photovoltaic power generation facility, located in the Hotan Prefecture of Xinjiang. The equipment was supplied by Shaanxi Hante Smart Electric Equipment Co., Ltd., and comprises four SFZ20‑100000/110 kV oil‑immersed three‑phase, double‑winding, on‑load tap‑changing step‑up transformers, along with associated grounding transformers, station service transformers, neutral‑point complete sets, and auxiliary equipment. Centered on 110 kV step‑up transmission, the project is tailored to accommodate the intermittent nature of solar generation; its integrated energy storage system enables coordinated operation between solar and storage, ensuring stable grid connection and reliable power supply. It serves as a critical substation‑level infrastructure supporting the large‑scale clean energy base in Hotan, Xinjiang.
The infrastructure project‑related power supply equipment procurement for the Yilong New Area in Xingyi, undertaken by a construction group company in Guizhou Province, is being supplied by Shaanxi Hante Zhidian Equipment Co., Ltd. The core equipment is one SZ11‑50000 kVA/110 kV on‑load tap‑changing power transformer, which will be delivered to the project site in the Yilong New Area of Xingyi City, Guizhou Province, to meet the electricity demands of large‑scale infrastructure construction and ensure stable power supply upon subsequent commissioning.
The power supply renovation project for the mining area of a certain mining limited liability company in Qinghai is located at the Sikuaoyangshengkutou mining site in Wutumeiren Township, Golmud City, Qinghai Province. The core substation equipment is supplied by Shaanxi Hante Zhidian Equipment Co., Ltd. The project’s key equipment includes: • One SZ18‑16000 kVA/110 kV oil‑immersed on‑load tap‑changing main transformer • Two SCB13‑200 kVA/10.5 kV dry‑type transformers, designed to operate in the extreme high‑altitude environment of 4,000 meters and to ensure reliable power supply for mining operations, including production, lighting, ventilation, and drainage—critical equipment for maintaining continuous production at this plateau‑level mine.
The power supply project supporting energy‑chemical production at a silicon alloy limited liability company in Sichuan is being supplied with customized power transformers by Shaanxi Hante Smart Power Equipment Co., Ltd. The core equipment consists of one S22‑63000/115‑10.5 kV oil‑immersed, double‑winding, no‑load tap‑changing three‑phase power transformer, designed to meet the high‑energy‑consumption load requirements of silicon alloy and other chemical manufacturing processes. Delivery is scheduled within 40 days of the contract’s effective date, ensuring continuous and stable power supply to the energy‑chemical production lines.
The construction project for the 5G‑enabled, unmanned digital substation’s intelligent distribution room at a telecommunications company in Hanzhong City is a turnkey upgrade and renovation of the power transformation and distribution system, undertaken by Shaanxi Hante Hezhuang Co., Ltd. Centered on the goals of intelligent distribution, unmanned operation, and stable, reliable performance, the project encompassed the high‑voltage system, distribution switchgear, cable laying, equipment installation and commissioning, software–hardware integration, and comprehensive system joint testing. The complete set of equipment and the entire system have passed acceptance by the power supply authority, resulting in a modern, intelligent distribution room that supports remote monitoring, automated operation, and minimal or zero on‑site staffing, thereby enhancing power supply stability, advancing the level of intelligence, and improving operational efficiency across the plant site.
A New Energy Power Station Construction Project for Heavy Trucks in Hanzhong City
The new‑energy power‑station construction project for a heavy‑truck manufacturer in Hanzhong City is centered on green, low‑carbon operations and intelligent O&M. It encompasses the complete installation of a full suite of systems, including new‑energy generation units, step‑up transformer and distribution systems, grid‑connection equipment, and an intelligent monitoring and energy‑management system. By employing standardized equipment configurations and an advanced, AI‑driven control scheme, the project has successfully completed all phases—equipment installation, system commissioning, and grid‑connection acceptance—and delivered a modern, reliable, and stable new‑energy power station capable of unmanned operation. This achievement ensures the efficient utilization of clean energy and its dependable integration into the grid.
*Note: Please be sure to provide accurate information; we will contact you as soon as possible.
Email box
National Toll-Free After-Sales Service Hotline
Address
No. 1 Hanbao Road, Hantai District, Hanzhong City, Shaanxi Province
