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Two sessions guide new opportunities for the development of smart gridsSince its first mention in the 2010 Government Work Report, smart-grid construction has appeared for six consecutive years. References in the 2015 Two Sessions—such as the “Belt and Road” initiative, the “going global” strategy, smart-city development, and the launch of major power projects—all herald a coming boom for smart grids. Riding this tailwind, power-equipment manufacturing, IT, new materials and related sectors are poised to surge.“Integrate the “Belt and Road” initiative with regional development and opening-up, and strengthen the new Eurasian Continental Bridge and key land-sea ports,” and “encourage enterprises to take part in overseas infrastructure and production-capacity cooperation, and promote Chinese equipment—railways, power, telecoms, construction machinery, automobiles, aircraft and electronics—to go global,” the Government Work Report’s blueprint for an all-round opening-up signals vast prospects for smart-grid development.Grid construction is one of the key industries spurred by the “Belt and Road” and “going global” strategies; the Global Energy Interconnection and ultra-high-voltage (UHV) projects stand out as its brightest highlights. Built upon smart grids, the Global Energy Interconnection uses UHV backbones to transmit clean energy worldwide, forming a robust and ubiquitous smart network. The two strategies will open even broader space for its realization.“We will vigorously develop wind, solar PV and biomass energy, actively expand hydropower, and pursue safe nuclear power,” states the report. With mounting environmental pollution and intense pressure to save energy and cut emissions, large-scale renewable generation is the solution. As the platform for renewable generation, transmission and consumption, smart grids can effectively link large energy bases with load centers, underpinning a secure, efficient and clean modern energy system.“Develop smart cities while protecting and inheriting history and local culture; strengthen urban water, gas and power supplies, public transport, and flood-prevention facilities,” the report adds. Smart grids form part of a smart city’s “nervous system” and are its core infrastructure. Future smart cities and grids will need greater and wider-ranging technological innovation and integration.“Launch a new batch of major projects in information, power, oil and gas,” the report states. State Grid plans to invest over RMB 400 billion in 2015, with further increases expected, pointing to a bright outlook for smart-grid construction.Smart grids represent the inevitable evolution of grid technology and a necessary choice for socio-economic development. Now a fiercely contested field worldwide, the market is enormous. According to Pike Research, the smart-grid technology market will grow from US$33 billion in 2012 to US$73 billion in 2020, with cumulative investment reaching US$494 billion. (Cable Network)2025-11-20
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Warm congratulations on the successful convening of the Ministry of Industry and Information Technology's Energy Efficiency Improvement Plan for Distribution TransformersOn May 5, 2016, the Promotion Meeting for the Distribution Transformer Energy-Efficiency Improvement Plan (2015-2017) was held in Nanjing. The event was hosted by the Department of Energy Conservation and Comprehensive Utilization of the Ministry of Industry and Information Technology (MIIT), organized by the National Distribution Transformer Energy-Efficiency Improvement Industry Alliance, and co-hosted by our company. Relevant leaders from the Energy Conservation Department of MIIT, the Department of Resource Conservation and Environmental Protection of the National Development and Reform Commission (NDRC), the Metrology Department of the General Administration of Quality Supervision, Inspection and Quarantine, and the Jiangsu Provincial Economic and Information Commission attended and delivered important speeches. Our company’s chairman, Mr. Qian Hongjin, and deputy general manager, Mr. Di Jingxiang, were invited to attend.The conference aimed to implement the Distribution Transformer Energy-Efficiency Improvement Plan (2015-2017), advance the 2016 energy-efficiency improvement tasks for distribution transformers, and exchange successful experiences in promoting energy-saving distribution transformer technologies and equipment. Economic and information commissions from various provinces across the country, along with more than 70 industry enterprises, participated in the event.The meeting introduced national and local policy documents related to distribution transformer energy-efficiency improvement, China’s distribution transformer energy-efficiency standard system, and the usage, upgrading, and retrofit plans for distribution transformers in public power grids and industrial enterprises. Representatives from economic and information commissions in Shandong, Guangxi, and other regions shared their achievements and experiences. State Grid Corporation presented outstanding case studies on distribution transformer energy-saving retrofits, while experts and key alliance members exchanged views on financing models for transformer upgrades and advanced energy-saving distribution transformer technologies.As an invited participant, our company delivered a keynote presentation titled “Transformer Quality Control and Energy-Efficiency Improvement Solutions,” outlining our overall profile and recent stable development. We noted that, in recent years, stricter State Grid quality monitoring and increased production of oil-immersed distribution transformers have led to more frequent exposure of operational failures. Since 2010, based on inspection statistics, we have adjusted product design, manufacturing, and delivery interfaces, significantly enhancing product reliability. We also introduced 110 kV–220 kV environmentally friendly, energy-saving main transformers, which underwent comprehensive testing by the China Electric Power Research Institute as a solution for main-transformer energy-efficiency improvement. The presentation received positive feedback and sparked lively discussion among attendees.After the meeting, delegates visited our company, offering high praise for our technical verification, process control, and quality assurance.2025-11-20
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How to improve the anti-corrosion application of oil immersed transformers in powerSinopower Transformer (Changzhou) Co. Ltd. Oil-Immersed Transformer To reduce heating losses and minimize size and weight, the core is built from high-permeability cold-rolled grain-oriented silicon-steel sheets thinner than 0.35 mm. This allows the heat generated by core losses to be fully carried away by the circulating insulating oil, ensuring excellent cooling performance. Oil-Immersed TransformerWhen subjected to short-circuit currents, large electromagnetic forces are produced in the windings, which can damage the transformer. An inter-turn short circuit may occur even if part of the winding is above the oil level. Additionally, during through-fault conditions, the overcurrent can deform the windings, causing mechanical damage to the insulation and resulting in inter-turn faults.2025-11-20
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What are the excellent reputations of oil immersed transformers for problem transformationSinopower Transformer (Changzhou) Co. Ltd, Ltd.'s oil immersed transformers are usually double winding transformers, which have two windings on the iron core, one is the primary winding and the other is the secondary winding. They are composed of the iron core, winding, oil tank, oil pillow, insulation sleeve, tap changer, and gas relay.When an oil immersed transformer is subjected to short-circuit current, a large electromagnetic force will be generated on the winding, causing damage to the transformer. The basic windings have two types: concentric and overlapping. Vacuum oil filtration and oil injection processes are used to minimize the moisture inside the transformer. A non suspended structure is adopted, which can withstand transportation vibrations.2025-11-20
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What are the protection methods for creating high-quality dry-type transformersSinopower Transformer (Changzhou) Co. Ltd'sdry-type transformer adopts advanced domestic technology, with high mechanical strength, strong short-circuit resistance, small partial discharge, good thermal stability, high reliability, and long service life. It adopts an intelligent signal temperature control system, which can automatically detect and display the working temperature of each three-phase winding, automatically start and stop the fan, and has functions such as alarm and trip settings.Dry type transformers use high-quality cold-rolled grain oriented silicon steel sheets, and the iron core silicon steel sheets use 45 degree fully oblique joints to allow magnetic flux to pass along the direction of the silicon steel sheet joints. In key projects and major engineering projects in China, it is difficult to find traces of foreign dry type transformers2025-11-20
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How to ensure that the monitoring environment of the box type transformer is not affectedSinopower Transformer (Changzhou) Co. Ltd's box type transformer is fully sealed, fully insulated, compact in structure, aesthetically pleasing in appearance, and only about one-third the size of a box type substation (European box type transformer). Disconnect the circuit breaker on the high-voltage side of the maintenance transformer, close the grounding switch, fully discharge the transformer, lock the high-voltage cabinet, and hang a "Do Not Close" sign at the switch handle.Clean the dust around and on the accessories of the box type transformer, check whether the fire-fighting facilities and ventilation system are in good condition, use aluminum zinc coated steel plates, and use standard container materials and manufacturing processes for the frame.2025-11-20
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Industrial and commercial energy storage solutionsThe peak valley difference of industrial and commercial loads is expanding day by day, and with the popularization of new energy applications, the quality of electricity in the power grid is becoming increasingly unstable, while the cost continues to rise. Configuring energy storage systems can effectively solve problems such as high electricity prices, insufficient short-term capacity, power restrictions/outages affecting normal operations, and equipment damage caused by unstable power quality.2025-11-20
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New energy generation and energy storage solutionsDue to the characteristics of new energy sources such as photovoltaics and wind power, the quality of power generation is unstable, and the problem of abandoned wind and solar power is prominent, seriously restricting the rapid development of new energy. Configuring energy storage systems can effectively solve these problems. The country requires new energy projects to be connected to the grid with mandatory energy storage, which effectively improves the development of new energy and lays a solid foundation for achieving the dual carbon goals as soon as possible.2025-11-20
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Application principle of bidirectional energy storage transformerThe product is used in energy storage systems by connecting with energy storage components to the public grid. During periods of low grid load, it converts AC energy from the grid into DC energy to charge the energy storage components. During periods of high grid load, it converts the DC energy from the energy storage components into AC energy that meets the requirements of the grid and feeds it back to the public grid, playing a role in peak shaving and valley filling.2025-11-20
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Energy storage transformerEnergy storage transformer: a new type of power transformer that stores electrical energy through energy storage devices, which can balance the load of the power system, improve the reliability and stability of the power grid, and reduce energy consumption and pollution.2025-11-20
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