The official investigation of the accident has not yet come out. However, in response to the many failures of the Beijing-Shanghai high-speed railway, the responsible person of Dinghan Technology (300011:23.26, +0.21, ↑0.91) invested on the Shenzhen Stock Exchange listed company on July 15. When answering questions from investors, the interactive platform stated that the main reason for the failure of the Beijing-Shanghai high-speed rail was the equipment failure in the traction power supply field integrated in the Fourth Electric Power Equipment at the ground station and the vehicle equipment failure.
It seems that behind the Beijing-Shanghai high-speed rail accident, the traction power supply system is suspected. The reporter learned that the high-speed rail traction power supply system is provided by a number of listed companies.
The data shows that the electricity supply needed for railway electrification is all provided by traction substations. Among them, traction substation equipment can be divided into two categories: all electrical equipment in a high-voltage circuit is a primary equipment; all electrical equipment in a secondary control, signal and measurement circuit is a secondary equipment.
As of now, in Shanghai and Shenzhen, in the traction and transformer primary equipment enterprises, Wolong Electric (600580:8.10, +0.04, ↑0.5)'s holding subsidiaries have become one of the major domestic railway traction transformers. Changji Transformer, which is controlled by TBEA (600089:12.28, +0.04, ↑0.33), has also begun to enter the railway transformer market.
In addition, the first stock of GEM's Tetrarch (300001:20.10, -0.18, ↓-0.89) is mainly engaged in the production of equipment for box-type substations on the railway; Dinghan Technology is mainly engaged in providing technological leadership for the intelligentization of rail transit. Digital power systems, electrical automation control systems, intelligent monitoring systems and other products and solutions. Both of the above companies have already joined the ranks of traction and primary equipment manufacturers.
The secondary equipment for traction transformation, in addition to being borne by the relevant agencies under the Ministry of Railways, is a second-tier equipment manufacturing company under the power system is an absolute force. Including Guodian Nanzi (600268:13.40,-0.1,↓-0.74), Xuji Electric (000400:0,0,↓0), Sichuan Investment Energy (600674:13.72, +0.02, ↑0.15) and other listed companies , have been divided into eating traction transformer secondary equipment "cake."
From the perspective of the proportion of investment in railway electrification, a primary equipment company's scans accounted for about 80% of the total investment, while secondary equipment and monitoring equipment accounted for 20%.
Specifically, the primary equipment is mainly the transformer switch, the actual current through the main equipment to provide energy to the railway's power grid. The secondary equipment is the microcomputer or computer monitoring system that is used to monitor and ensure that the railway electrical system can operate safely and effectively.
According to relevant data, 2011-2014 is the peak period for completion of railway construction. The high boom of high-speed rail electrical equipment can last until 2014, and the market demand for high-speed rail only for some annual average traction transformers will be around RMB 1.1 billion in 2011-2014. .
In this regard, Wolong Electric mentioned in its 2010 annual report that the company’s transformer products have a high share in the special transformer market such as railways and urban rail transit transformers, and will continue to maintain its leading edge in railway traction transformers, sharing the achievements of high-speed railway construction. .
Previously, Wolong Electric purchased Beijing Huatai in 2009 and used its advantages in complete sets of commutating traction equipment for urban rail transit to further improve the company's transformer business structure. In early 2011, the company acquired Dongyuan Transformer, which enriched the company's transformer product chain and improved its regional layout.
During the reporting period, Hangzhou Wolong Electric Research Institute Co., Ltd. realized revenue of 75.3552 million yuan in 2010, net profit of 101.919 million yuan; Beijing Huatai Transformer Co., Ltd. achieved operating revenue of 101.4039 million yuan in 2010, net profit of 928.86 million yuan.
The reporter noted that Sanxuan Technology (002112:0, 0, ↓ 0) also targeted the high-speed rail market, targeted development of a typical traction transformer for electrified railway DQY-40000/220, using a fully insulated structure to achieve high short-circuit resistance skill requirements. At present, the equipment has passed various tests including the sudden short-circuit test by the National Transformer Quality Supervision and Inspection Center.
Tracht's railway marketing network has covered all 18 railway bureaus nationwide. During the whole year of 2010, the company won the bid for the first large-scale use of the box type for the Beijing-Shanghai line, Harbin-Dalian line, Jingshi line, Hanyi line, Nanjing-Hangzhou line, Changji line, Xiamen-Shenzhen line and other high-speed railway passenger dedicated line projects and oil pipeline systems. Substation West-East Gas Pipeline II Project. Among the important contracts signed by Traverse during the first half of last year, orders related to high-speed rail or passenger lines accounted for 74.4%.
According to the 2010 annual report of Teruid, the company’s operating income from the railway system was as high as 303 million yuan, a year-on-year increase of 27.98%.
Similarly, the Dinghan technology, which is the main signal communication intelligent power system, has also tasted the sweetness of the development of the railway industry and high-speed railways.
In 2010, the company realized a business income of 295,361,900 yuan, an increase of 20.37% over the previous year, an operating profit of 69,106,600 yuan, a decrease of 1.17% from the previous year, and a total profit of 77,831,400 yuan, an increase of 9.32% over the previous year, achieving the ownership of the company's shareholders The net profit of 69,318,200 yuan, an increase of 14.97% over the previous year.
Divide the secondary equipment This reporter noted that in the high-speed railway traction substation secondary equipment "cake" in the food-snapping team, Guodian Nanzi, Xu Ji Electric and other companies is undoubtedly a strong competitor.
According to the 2010 annual report disclosed by Guodian South, the company's rail transit automation business accumulated a total of 178,244,800 yuan in order to realize operating revenue of 169,101.7 thousand yuan. The company's rail transit automation professional product orders increased by a significant 65.16% compared with the previous year.
During the reporting period, the high-speed rail projects implemented by the company at the same time included the Jinan section of the Beijing-Shanghai high-speed railway, the Harbin section of the Harbin-Dalian Passenger Dedicated Line, the Nanjing-Hangzhou Intercity Railway, the Hangyong Intercity Railway, and the Hanyi High-speed Railway.
Guodian Nanzi stated that the opening of the Shanghai-Nanjing Intercity Railway marked that Guodian South had a 350km/h speed product performance; the Beijing-Shanghai high-speed rail pilot segment had created the highest speed of 486.1km in the world's railway operation test, and Guodian South had been the electrical The equipment supplier completed the integrated automation system of the Beijing-Shanghai high-speed rail traction substation integrated automation system and the power distribution station.
In the same way, XJ Electric has also made significant gains in the high-speed rail market. In 2010, the company achieved operating income of 3.856 billion yuan, an increase of 26.84% over the same period of the previous year; and a net profit of 147 million yuan, an increase of 12.65% over the same period of last year.
During the reporting period, the company closely followed the pace of national high-speed railway construction and successively seized major rail transit projects such as Wuhan Dongju, Changji Intercity Railway, Xisuihai Line, Harbin-Dalian Passenger Line, Jingshiwu Passenger Line, and Wuhan Metro. The successful bid for large projects ranks in the forefront of the industry.
In addition, XJ Electric stated that the company’s EMUs have passed the assessment of the Ministry of Railways without being over-separated by the automatic over-phased system, and they are in a leading position in China and will be widely used in high-speed rail projects.
The Chuantou Energy Co., Ltd. through its subsidiary Jiaoda light to eat the traction transformer secondary equipment "cake."
Chuantou Energy stated that the company's holding subsidiary, Jiaoda Lighting, is a leading company in the automation control system of China's rail transit industry, and its technical strength has always maintained a leading position in the industry. The development of China's rail transit industry in the “Twelfth Five-Year†period will bring unprecedented opportunities for the development of Jiaotong University, and this area will also become a major growth point for listed companies in the future.
Chuantou Energy's 2010 annual report shows that Jiaotong University has achieved a total annual revenue of RMB 112,038,600 and a net profit of RMB 28,960,900.
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