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Delta power quality solutions provide Ningbo mobile with high-quality power guarantee

recently, delta group's mainland new container meets the test requirements of the United Nations dangerous goods agreement. Delta PQC series power quality solutions based on svg+ equipment application provided by its subsidiary Zhongda Diantong have successfully solved the power quality problem of dual bus power supply for Zhejiang Ningbo Mobile Communication Co., Ltd. (hereinafter referred to as Ningbo mobile), It provides high-quality power guarantee for the business operation of Ningbo mobile

Ningbo mobile is subordinate to China Mobile Communications Corporation. Since the first mobile was launched in Hangzhou in 1992, Ningbo Mobile has always been the main provider of mobile communication services in Zhejiang Province and has always maintained a leading position. In order to achieve the goal of becoming a world-class communication operator, Ningbo Mobile has put forward the strategy of transforming from a communication operator to a comprehensive information operator, seeking breakthroughs in data services and information technology, and constantly actively seeking the sustainable development of the enterprise. At the same time, the realization of this goal needs first-class power quality as a guarantee. Therefore, Ningbo mobile attaches great importance to the power quality of power supply. Only stable power quality and efficient power application can ensure that the data room and various precision instruments work in the best state, improve the accuracy of sensitive equipment and minimize potential safety hazards

in order to ensure the reliability of power supply, Ningbo mobile adopts double bus connection power supply structure. However, the power quality management of double bus connection structure has always been a difficult point in the industry. For this purpose, Zhongda power communication has provided PQC series power quality solutions based on svg+ equipment application. Through the solution of multi group CT operation, it has overcome the problems and solved the power quality problems of dual bus coupler power supply for Ningbo mobile

schematic diagram of the scheme provided by Datong in the figure

for the configuration of two-way transformer incoming lines and one bus connection on site, Datong respectively configures one svg+ device on the low-voltage side of two 1600KVA transformers (the electrical installation position is exactly the same as that of the capacitor compensation cabinet). Considering that the two svg+ devices can be used as complementary combinations when the transformer switches power supply, their capacity can be designed according to half of the capacity of the capacitor compensation cabinet (125kvar), It can meet the different compensation capacity requirements of two-way transformer with two-way input (bus coupler open circuit) and one-way input (bus coupler closed) with full load. In addition, the compensation method of svg+ is accurate and high-speed compensation with stepless change. Therefore, its capacity can be further reduced by about 20% based on the reference capacity of capacitance. It can be configured to 100kvar as appropriate, which can also achieve or even exceed the effect of capacitance compensation

the PQC series APF provided by Zhongda Diantong not only has excellent electrical characteristics, but also adopts a unique modular design, which can be easily embedded into the third-party cabinet for application, facilitating on-site installation, capacity expansion and maintenance. For the double bus connection power supply structure, considering various possible working conditions, the scheme adopts the enhanced static var compensation device to dynamically and accurately control the reactive power, ensuring that the reactive power tracking response speed is less than 10ms, the power factor reaches more than 0.98 after the control accuracy, and there is no risk of harmonic vibration

Zhongda Diantong successfully joined hands with Ningbo mobile this time, which not only provided high-quality power guarantee for customers to become a world-class communication enterprise, but also further improved their awareness and influence in the field of communication data services and informatization, laying a solid foundation for their rapid and stable development

about delta group

founded in 1971, delta group is a leading manufacturer of power management and cooling management solutions, and occupies a world-class important position in many product fields. In the face of increasingly serious climate change, delta adheres to the business mission of environmental protection, energy conservation and love for the earth, uses the basis of power design and management, integrates global resources and innovative research and development, and deeply cultivates three business areas, including power supply and components, energy management and intelligent green life. At the same time, delta actively develops its brand and continues to provide efficient and reliable energy-saving solutions

delta group operates around the world, with R & D centers and production bases in Chinese Mainland, Taiwan, the United States, Thailand, Japan, Mexico, India, Brazil and Europe. In recent years, Delta has successively won many international honors and affirmations. In 2011, delta was selected as the world index and Asia Pacific Index of Dow Jones Sustainability indexes. In 2012, Sam (Sustainable asset manag), a world-renowned sustainability evaluation organization, rated Delta as the best sustainable enterprise in the global electronic equipment industry, the gold level, the highest level and the best outstanding progressive enterprise

for details of delta group, please refer to:

about delta Greentech (China) Co., Ltd., a mainland subsidiary of delta, which was established in Shanghai in 1992. Since its opening in 1994, it has maintained a high-speed development trend with an average annual growth rate of 35.5%, providing efficient and reliable power, video, automation and energy management solutions for industrial users (such as telecommunications, data centers, electric power, petrochemical, railways, industrial machinery, etc.). It ranks first in the market share of communication power supply in China, and is also a leading manufacturer of video display and industrial automation steel strand testing machine with vertical structure

ZTE integrates the excellent power electronics and control technologies of delta group, and continues to introduce products with leading performance at home and abroad. Under the in-depth understanding of the operating environment of Chinese customers, the technical solution center puts forward complete solutions according to the process needs of all walks of life, so as to create competitive advantages for customers. In order to meet customers' demand for high reliability, Zhongda Diantong has set up 41 branches, 64 technical service points and 12 maintenance points nationwide. Relying on the well-trained technical service team, Zhongda provides customers with personalized and all-round pre-sales service and the most reliable after-sales guarantee

after 20 years of intensive cultivation, with the efforts of nearly 2000 employees, the turnover of Zhongda Diantong in 2011 exceeded 3.6 billion yuan. In the future, Zhongda will continue to innovate and provide industrial customers with industrial control solutions such as energy saving, new energy, industrial automation and video

Zhongda Diantong is a reliable industrial partner

for details of the upper limit of Zhongda Diantong, refer to the maximum load that may be applied to the test piece. See:

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