Recently, the impact generator set independently developed, produced and installed by SEC Electric has been successfully delivered in Jiangsu A-level testing base of State Grid.
1、Experimental data
75-2-13.2kV-2100/1750MVA-50/60Hz impulse generator set was delivered in this project. The designed breaking test capacity of the system was 12kV 40kA 0.3s, and the internal arc test of 10kV switchgear was 12kV 40kA 1s.
2、Project background
The A-level testing base of State Grid Jiangsu Power Co., Ltd. is located in Tongshan District, Xuzhou City, with A total investment of more than 504 million yuan, covering an area of 106.55 acres, and a total construction area of 51,746 square meters. The project covers 5 major test systems such as large-capacity short-circuit test, intelligent storage warehouse and power access system. Testing base with high voltage, high current, electromagnetic compatibility and other all 530 testing project test capabilities, can undertake 7,000 A-level testing tasks per year, long-term up to more than 10,000, the annual output value of more than 250 million yuan, the business can radiate Shandong, Henan, Hebei, Anhui and other neighboring provinces, driving the rapid development of regional economy and power equipment production quality.
3、Product details
● SCR-75-2-13.2KV-2100/1750MVA50/60Hz Maximum short-circuit breaking test current design value of 13.2kV/50kA for single generator and 13.2kV/100kA for dual generator in parallel;
●The research and development of this short-circuit impact generator, based on our rich experience in multi-industry motor research and development and manufacturing, combined with the special requirements of different electrical short-circuit tests, the performance indicators of the product are at the advanced level in the industry. The analysis result of the product is high precision, has excellent electromagnetic transient performance and mechanical characteristics, and ensures that the power frequency recovery voltage, TRV and frequency change after the breaking test meet the test requirements.
●The technical team combined with customer requirements and the limitations of the use of space, in the structural design has done a lot of optimization, so that the motor has the characteristics of large rotor inertia, light weight, vibration and noise; The modular design makes the product extremely maintainable.
4、Construction report
In order to ensure that the quality of the project fully reaches the national and power industry standards of excellent level, to achieve high standards and put into operation, since the date of confirmation of the bid, our company has maintained close communication with customers, from product research and development to delivery acceptance, and then to the project construction and other links, we have configured high-quality professional and technical personnel and construction personnel, by summarizing the previous experience of similar projects, Planning ahead in the management of construction period, quality and safety, drawing a case by case, and formulating a strict work plan to shorten the construction period as far as possible under the premise of ensuring product performance to meet the requirements, and leaving system debugging time margin for the scheduled delivery of the entire project.
In the face of the tight construction period, our company has established an administrative control system headed by the project manager to implement the responsibility to the person and achieve smooth government orders. During the construction process, adhere to the daily production scheduling regular meetings and engineering quantity inventory, compare with the schedule at any time, adjust and amend in time, achieve dynamic management, and fully reflect the "clear goal, scientific planning, serious plan and tight control" in the control of the construction period.
In terms of construction execution, our company strictly controls the preparation and approval of the construction plan, strict process discipline, always track the construction progress, and optimize the construction plan. Promote new technologies, new processes, new materials and new equipment in engineering construction. With the plan as the leader and the technology as the guide, it provides a reliable technical guarantee for the realization of the progress target.
5、Vision and goal
The smooth landing of the project has helped the high-quality development of the power grid and the construction of the green modern digital intelligence supply chain system, which has positive significance in driving the national electrical equipment manufacturing level, and also shows the high level and continuous progress of China''''s intelligent manufacturing.
Taking this as an opportunity, SEC will continue to focus on R&D and innovation, support the green industry, continue to play the integrated advantages of complete power solutions, and empower more owners.
