Tag Archives: AC Reactor
Baoding Transformer pull the worlds highest speed railway
This morning, by the Baoding Transformer Co., Ltd. production of railway traction transformers, traction power supply auto transformers and other equipment, the success of the Beijing-Shanghai high-speed rail through Zaozhuang to Bengbu section of the maximum speed between the pilot test, the train speed of 486.1 kilometers, set a world rail operations top speed record.
This is the second September 28, Shanghai-Hangzhou high-speed rail test run after a record speed of 416.6 km, Baoding, China Railway high-speed rail to accept the transformer again broke the world rail speed up the test of trial operation. Pilot section of Beijing-Shanghai high-speed rail all the equipment Baoding railway transformer autotransformer produced products, this high-speed runs through Beijing, Tianjin, Hebei, Shandong, Anhui, Jiangsu, Shanghai, 7 provinces and cities, connecting the Bohai Sea and the Yangtze River Delta two major economic area, the line from Beijing South Railway Station to Shanghai Hongqiao Station, the new rail link 1318 km, is the world s first built the longest line length, the highest technical standards, the fastest high-speed rail.
Baoding railway transformer manufacturing company developed special railway transformers and other products has reached more than 30 series, 180 varieties, used stone too, co-Wu, Nanjing, Hangzhou and other passenger lines and Beijing and Tianjin, Wuhan-Guangzhou high-speed rail line , export to Iran, Thailand, Pakistan, Albania, more than 10 countries and regions.
Traction power supply transformer 330kV AT was the title of National Key New Products
In early November, the new plant for the Zhengzhou-Xi an line change independently developed and produced the world s first 330kVAT traction power transformer, with its superior quality, through the Ministry of Science, Ministry of Environmental Protection, Ministry of Commerce and General Administration of Quality Supervision, Inspection and Quarantine jointly identified, won this year s "National Key New Product" honorary title.
"National Key New Product" by the State Ministry of Science and Technology, Ministry of Environmental Protection, Ministry of Commerce and General Administration of Quality Supervision, Inspection and Quarantine jointly issued by four ministries of the title, is a national system of science and technology plan technology industry environment an important part of the construction, intended by the guidance and support, encourage independent development of new products, promote enterprise technological progress and technological innovation, promote scientific progress and technological innovation, promote scientific and technological achievements transformation and industrialization, promote the optimization and upgrading of China s industrial structure and product structure adjustment enhance the international competitiveness of our products.
New variable traction power transformer factory 330kVAT won the "National Key New Product" title is TBEA independent innovation capacity of full recognition, not only to demonstrate the new plant in the railway traction becomes a leading professional and technical level, and shows TBEA in science and technology research and development, promote the development of the industry s important role. AT 330kV class transformer is a new variable traction power plant for the construction of China s first 350km / h high-speed rail passenger line developed by Zhengzhou-Xi an one of the key equipment, was tested in October 2009 put into operation successfully, began live operation, with its high reliability, smooth operation of the research group by the Ministry of Railways acceptance. The product development, successfully put into operation to improve the railway system in the new supporting variable plant products, technical capacity and visibility for the latter part of the new Beijing-Shanghai high-speed rail bid variable plant, Shijiazhuang, Changchun-Jilin, Harbin and other AT-powered traction lines laid a solid foundation for change, the new plant becomes the market share of the railway has been greatly improved.
We believe that the Wolong Electric transformer business
Wolong Electric traction transformer into the industry leader
We believe that the Wolong Electric transformer business will fully benefit from the high-speed railways and urban rapid rail transit construction and maintain a rapid growth, additional equity investment and the project will address capacity bottlenecks to improve the company\\ s future growth potential, motors and batteries and other products in the industry boom context of the next few years will maintain rapid growth. The company expects fully diluted earnings per share for 2010-2012 were 0.71 yuan, 0.98 yuan, 1.27 yuan, giving 25 times 2011 PE valuation and target price of $ 25, kept a \"buy\" rating.
Diversified business development, strong growth in the transformer business
History of the company were carried out four major mergers and acquisitions, business diversification, including industrial / household motors, transformers, batteries and many other business and trade. In 2005 the company acquired 92.5% stake in Yinchuan Wolong, China and Thailand in 2009 acquired 51% stake in Beijing, the current transformers including power transformers, railway traction 220kV transformers, urban rail transit rectifier / transformer, dry type transformers, etc., has become the traction transformer industry leading enterprises.
Used in railway traction transformers produced mainly by the Yinchuan Wolong, traction rectifier transformers used in the subway by the Beijing Huatai production. Wolong Transformer is a company newly established in 2009, responsible for the super / ultra high voltage transformer product development and production of the subject.
Revenue from the company\\ s transformer business in 2008 to 2.1 billion yuan in 2009 to 4.6 billion in total revenue (22.3 billion) of 21% growth rate of 119%.
Leading position in solid traction transformer
Yinchuan Wolong is the company\\ s main railway traction transformers, 2009 operating income of 3.8 billion, net profit of 68.94 million yuan. Yinchuan Wolong has undertaken the Wuhan-Guangzhou line, Zhengzhou-Xi\\ an line, the Shanghai-Hangzhou line, the Shanghai-Nanjing high-speed passenger line line traction transformer order, laid in the railway traction transformer market leading position in market share of about 40%; we estimate Yinchuan Wolong carried forward to 2010 orders of $ 300 million (200 million railway contract), and this year there will be Shanghai, co mussels, North Zheng, into the music and many other high-speed rail project into the tender stage, the future can still maintain a rapid growth.
Beijing Huatai is the company\\ s production of the city\\ s main rail traction rectifier transformers, is the only one able to produce complete sets of traction rectifier equipment companies, accounting for 90% of the market, the Beijing subway, the national market of more than 30%. Beijing Huatai next few years will maintain the 35% compound growth.
According to the current building, common every 50 km electrified railway traction substation is located one each traction substation with two transformers, each priced at 300-5000000 yuan range. Accordingly, estimates, general electric traction transformers per kilometer in the investment of $ 15 million, while the high-speed rail line electrified railway product cost is 1.5 times normal, so the per kilometer high-speed railway traction transformer market demand of 23 million. We determine ,2010-2014 total market demand for railway traction transformers up to 8.03 billion yuan, an average 1.61 billion yuan, the market demand for the arrival of the peak in 2014, reached 20 billion yuan.
Similarly, every 2-3 km of urban rail transport set up a traction substation, each substation is equipped with two sets of traction rectifier transformers. Forecast 2010-2016 is the peak of urban rail transit ,2010-2015, a new urban rail transit total mileage of 3604 km completed, urban rail transit traction rectifier transformer market total capacity of 25.2 billion yuan, 420 million yuan.
Barriers to higher traction transformer industry, market competition is relatively stable
Railway traction transformer market high barriers to entry, due to the characteristics of high speed rail requires a high degree of transformer overload capability and short circuit ability, the same voltage level than the railway traction transformer power transformer technology is more difficult; and iron requirements of the Ministry of Railways Traction Transformers manufacturers must have two, two users, more than two years of successful operating experience, based on participation in the project through identification before bidding, bulk supply.
Urban rail transport market traction transformer, rectifier transformer traction in the subway because the amount of the lower proportion of the project, but related to the operation of the whole project quality, project investors will generally choose to run experience, track record of good corporate products . This segment of the industry leader for the formation of favorable conditions.
Therefore, the traction transformer market, with a rich supply performance of leading companies have first-mover advantage, competition is relatively moderate. Height of boom period in the industry, leading companies to share more of the market growth of the cake. Currently Yinchuan Wolong, cloud characteristics change shares and Changsha railway traction transformer along the major manufacturers, accounting for about 80% market share. With the growth of the size of the railway business, TBEA (600,089, stock it), Tianwei change (600,550, stock it), China\\ s Western Electric (601,179, stock it), Shandong of Chi and other large enterprises have gradually entered the transformer the market. Traction transformers in urban rail transit market segments, especially along the electrical and Beijing Huatai occupy nearly 80% market share, Jiangsu Huapeng, Shandong Jin Mante, Hainan gold plate electrical and other companies share less.
High-voltage transformer company over 120% capacity utilization, production capacity constraints of the company has become a major factor in the transformer business one. May 2010 the company was successful issuance of 5467 shares, raising 970 million yuan of funds, the original plans to invest \"high-pressure, high pressure transformer project\" $ 520 million. The project is finished, the company transformer production capacity increased by leaps and bounds, 220kV and 500kV transformer will become a mainstream product, to enhance revenue and market share to lay a solid foundation.
City Park two 220 kV hada change through acceptance
City Park, two 220 kV hada change through acceptance
Polaris Power Online News: Correspondent Wang Yingchun Liu Ying Ling reported recently, Tongliao City Park, the power
company, two 220 kV substations and Hada Branch City 220 kV lines, the line works, successfully passed the Liaoning
Provincial Power Station Project Quality Supervision Center pre-shipment inspection and supervision of investment
income.
City Park, Hada 220 kilovolt power transmission project, since construction started in July 2008, the company is
Tongliao power grid from 2008 to 2009 an important part of the construction. City Park covers an area of 34,436.6 square
meters of total substation, with a total construction area of 707.88 square meters, the installation of a main
transformer of 180 MVA, 220 kV outlet 10 back, 66 kV outlet 10 back. The total area of 19,416.3 square meters Hada
substation, with a total construction area of 876.54 square meters, the installation of a 120 MVA main transformer, 220
kV outlet 6 back, 66 kV outlet 7 back, install a group of 10 MVA capacitors. In addition to substation works, this
section also the city line, the river Ha lines 220 kV transmission line project for the new supervisory inspection, the
total line length of 136 km.
These two projects are Tongliao power company grid from 2008 to 2009 an important part of the construction. Project is
completed, Tongliao City to meet the 220 kV grid ring N-1 requirements, the grid structure is more reasonable, supply
capacity and reliability will be greatly improved, for local economic development has great significance.
47 Yulin Power Supply Bureau 110KV substation put into operation
No. 47 Yulin Power Supply Bureau 110KV substation put into operation
In order to meet given the rapid economic development side, to meet the industrial and agricultural production and
people s lives Dingbian growing demand for electricity, the western power grid to optimize the structure of Yulin, after
four months of intense construction of the building, at 22 o clock on September 23, 110KV be operational change while
Zhang Liang, Yulin Power Supply Bureau is put into operation the first 47 110KV substation.
Zhang Liang 110KV change is the hub of the western power grid substation planning, it can greatly improve the
construction of the western power grid network structure, the western power grid to solve the main problems, increase
the system s load capacity, improve the system reliability, reduce line losses improve power quality. Currently, the
western grid s load capacity has reached its limit, according to the load forecast, 5 years have 130MW of new power load
changes by Zhang Liang.
Zhang Liang 110KV substation installation of 2 × 50MVA final three-winding on-load tap changer, a 31.5MVA current
transformer, in order to better meet the user requirements for power quality, the main transformer using low-loss, a
longer maintenance cycle of the three phase three-winding self-cooled hermetically sealed load tap; 110KV double-bus
connection, end-of-12 back into the outlet, the current 6 back; 35KV single busbar connection, end-of-6 back into the
outlet, the current pre- stay; 10KV single bus segment wiring, terminal into the outlet 16 back, the current 8 back.
Zhang Liang 110KV 110KV transmission project by the Zhang Liang and Zhang Liang substation 110KV salt brick line change
to π then double-circuit transmission line components, project design, construction completed by their own power supply
bureau in Yulin, a total investment of 34.87 million yuan. The project is "Yulin Energy and Chemical Base" 2 +6 "network
planning" project, 110KV Zhang Liang change put into operation for the coordination of regional development, to achieve
leapfrog development set while creating the economic conditions, to accelerate local economic growth, for local people
to get rich as soon as possible to provide a strong power protection, with a very clear social benefits.
UHV AC outlet device authentication through
UHV AC outlet device authentication through
13, UHV transformers and reactors Used 1000 kV standard outlet devices successfully tested in Baoding, Hebei verified.
Excellent indicator of the outlet device, stable performance, achieved in the operating impulse voltage, lightning
impulse voltage and power frequency withstand voltage of partial discharge-free design expectations. The outlet device
successfully developed to accelerate the subsequent UHV construction progress, special high-voltage transformer
protection and the quality of reactor stability is important.
In transformers and reactors, the 1000 kV to 1000 kV outlet device to bear high pressure from the coil leads, through
the box and connected with the role of the casing. The device requires a high voltage tolerance within a small scale, to
ensure that the electric, magnetic, thermal and mechanical stress under the action of many other long-term reliable
operation, the structural design, quality materials and manufacturing processes demanding. In China s first UHV in the
construction of 1000 kV supply outlet device, seriously affected the progress of the project.
To this end, the State Grid Corporation organized to promote the standardization of 1000 kV outlet device design and
manufacturing. Switzerland, Weidmann for the company in conjunction with domestic manufacturer s standard design, the
company experts to conduct a comprehensive feasibility studies, carry out the checking and review of proposed inspection
and testing requirements, and material preparation, production and installation tests, etc. part of a comprehensive
management and control.
After more than eight months fighting, standardized 1000 kV outlet device developed and Tianwei change security
companies UHV AC pilot demonstration project on a standby transformer produced by the test. Compared with the original
outlet devices, new product performance, reasonable structure, the production cycle is short, easy to install, greatly
easing the follow-up duration of the project UHV pressure.
Hanzhong amorphous alloy transformer power supply bureau through the acceptance of the pilot
Hanzhong amorphous alloy transformer power supply bureau through the acceptance of the pilot
Northwest pilot units as the only three on-site inspection unit and the national one, October 14, Hanzhong, Shaanxi
Power Supply Bureau, "amorphous alloy core distribution transformers in the new rural construction in the applied"
research project successfully passed the State Grid Corporation of experts group acceptance. By the China Electric Power
Research Institute, Shaanxi, Liaoning Provincial Power Company inspection group composed of experts believe that it can
elaborate arrangements for experimental work, bold and innovative testing methods, data results of scientific induction,
gained valuable first-hand information and experience in operation and maintenance management for the State Grid
Corporation of the rural power grid energy loss reduction work made a useful and positive contribution to the
exploration.
Expert inspection group listened attentively to the work of Hanzhong Power Supply Bureau and the pilot of the overall
report on the pilot project analysis, a detailed review of the experimental raw data, field notes, analysis reports and
other relevant information, and in-depth 10 kV lines, and amorphous group of agricultural alloy distribution transformer
with on-site inspection test. Discussed by the experts agreed that the consultation, Hanzhong Council attaches great
importance to and carefully arranged the contents of the experimental work, combined with creative enterprises and the
local real practical application of modern testing, maintenance and management tools, and colleges, enterprises and
scientific research by way of deepening refinement and implementation of research results, not only to ensure the
integrity of test content, systems, and reliable, the State Grid Corporation of the major scientific and technological
projects at the grassroots level and field roots, has made the success of experimental work.
In recent years, Hanzhong Power Supply Bureau, the State Grid Corporation, Shaanxi Electric Power Company issued a
research and innovation, business management, technology and other aspects of experimental work as improve the level of
development, construction, personnel training an important way to fight and has finished as "people skills assessment",
"equipment condition-based maintenance," "honest practitioners risk identification" and a large number of pilot
projects. In this "amorphous alloy core distribution transformers in the new rural construction in the applied" research
project, the council leadership and the establishment of a special working group to refine the applications and
implementation steps, a clear responsibility of the relevant departments and personnel, and from the material supply,
installation and commissioning, operation and management, problem solving and other aspects of coordination, carried out
for the solid success of the pilot work has laid a solid foundation.
Transformer DC resistance tester basic performance parameters of the product
Transformer DC resistance tester basic performance parameters of the product
Feature of this instrument
1, while three-phase transformer winding test transformer on-load tap tap can be adjusted directly.
2, no discharge, the test time is only one-third of traditional methods.
3, the instrument can be different according to the transformer winding resistance automatically adjust the test current, the instrument under test in the best condition, having to manually switch the current range.
4, the apparatus using a large-screen LCD display, Chinese menu prompt, with a high-speed printer, and has a data storage function, easy to read data and records, test data and stable, reproducible, and anti-interference ability, fast charge and discharge, DC resistance of the transformer is field testing the best choice.
Technical parameters
1, ambient temperature -10 ℃ ~ 50 ℃
2, humidity ≤ 85% RH
3, the working power AC220V ± 10%
4, the power frequency 50 ± 1Hz
5, the output current three-phase test: 0.5A ~ 10A single-phase test: 1A ~ 20A
6, resolution 1μΩ
7, the measurement accuracy of ± (0.2% +2 words)
8, the storage capacity of 80
9, size 395mm × 290mm × 240mm
10, Weight 10kg
DC resistance of transformer failure analysis
DC resistance of transformer failure analysis
YTC336-10 transformer DC resistance tester is used for large-capacity three-phase transformer winding DC resistance measurement instruments simultaneously. The instrument can be tested simultaneously on the three-phase transformer windings, the OLTC tap can be tuned directly, no discharge, the test time is only one-third of traditional methods to solve the power transformer DC resistance test takes a long problems. The failure analysis is as follows:
1, such as the instrument display screen as shown:
That is one or more phases show circuit barrier.
Failure:
(1) test line is not connected or not clip clip prison.
(2) The instrument power failure.
You should press the \"return\" key, the positive charge of the winding discharge and then check the wiring.
2, boot no display:
Failure:
(1) AC220V power is applied.
(2) AC220V power outlet fuse damage.
(3) inside the instrument plug-in loose.
3, a long shows \"charging\"
Failure:
(1) test line is not connected or not clip clip prison.
(2) beyond the test range.
(3) the instrument power failure.
take the examination for the low temperature
Tonghua Jiangxi Transformer Power Supply Company to take the examination for the low temperature
With the advent of a new round of cold, so that distribution network is facing a severe test. To enhance the anti-risk capability of distribution transformers, December 23, Tonghua Jiangxi Power Supply Company of the 6 staff members braved the minus 26 degree temperature on the area of ??transformer "health check" to ensure safe and reliable power supply during the holiday season.
Inspection process, staff braved the biting cold wind, the focus view of the transformer oil, the oil level as the temperature changes lead to decrease in time to add the transformer oil; observe whether the transformer oil; check box top oil thermometer temperature; of deterioration transformer oil in time. In particular, hospitals, transportation hubs and other key customers to maintain power distribution equipment, the discovery of hidden dangers, one by one to eliminate defects and improve the quality of health facilities.
As of 17:00, visited the office a total of 15 transformers, transformers for the 8 add oil. "Physical" work continues, the branch will go all out to ensure that our customers spend a happy and harmonious New Year s Day.