Introduction to Category VI wires and cables (1)
Bare wires Bare wires and bare conductor products refer to conductive wires without insulation and sheath, mainly including bare single wire, bare stranded wire and profiled wire.
Single-phase 220V to three-phase 380V power converter
Single-phase to 3 phase power converter is applicable to various types of loads (such as motor, ice cream machine, lathe, mixer, elevator, commissioning converter, compressor, etc.). Single-phase 220V to three-phase 380V power converter uses AC-DC-AC circuit structure and SPWM modulation control technology to convert ordinary single-phase power to industrial three-phase power. The three-phase power after single-phase to three-phase power conversi
Components of oil immersed power transformer
The iron core and winding are immersed in the oil tank filled with transformer oil, and the end points of each winding are led to the outside of the oil tank through insulating bushings, so as to connect with the external lines. Therefore,Oil immersed power transformer is mainly composed of five parts: 1. iron core; 2. Winding with insulation; 3. Transformer oil; 4. Oil tank; 5. Insulating sleeve.
What aspects should be paid attention to in the maintenance of transformer on load tap changer?
China Tap Changer,Transformer Tap Changer manufacturer, choose the high quality Tap Changer Transformer,Off Excitation Tap Changer, etc. 1. Inspection, maintenance and commissioning of core suspension of tap changer. 2. Cleaning, leak detection and maintenance of tap changer oil chamber. 3. Inspection, cl
Analysis of transformer fault causes
1. Lightning strike The research on lightning stroke is relatively few, because many times the impact fault will be classified as "line inrush current" if it is not a direct lightning stroke accident. Of course, the best way to prevent lightning stroke is to install lightning arrester, which can not only protect the transformer, but also reduce the impact current in the power system and reduce transient fluctuations.
Components of high-voltage distribution room
6-10kV indoor substation is mainly composed of three parts: high-voltage distribution room, transformer room and low-voltage distribution room. 1. High voltage distribution room When the number of units is small, single row arrangement is adopted; When there are many sets, double row arrangement is adopted. When over
No load loss of amorphous alloy core transformer after operation
In 1982, the first amorphous alloy core transformer was put into operation in the United States; In 1983, Electric Power Research Institute (EPRI), GE Company and New York State Electric Power Company considered this problem, and in 1985, 1000 sets of 25 and 15 kVA pole mounted transformers were sent to 90 EPRI member units for field test for two years. The test data of the field test shows that the no-load current and no-load loss after 2 years of operation are very close to those of the delivery test.
Classification and functional description of transformers
Transformer is a device that converts a certain level of AC voltage and current into another level of voltage and current of the same frequency according to the principle of electromagnetic induction. According to the purpose of transformer, it can be divided into power transformer, audio input transformer, output transformer, intermediate frequency transformer, high-frequency transformer, pulse transformer, etc. 1. Text symbol of transformer is "T".
Teachers and students of Wuhan University of Technology visit and study
On November 17, teachers and students of Wuhan University of Technology visited our factory. This visit not only enabled the students of Wuhan University of Technology to have a deeper understanding of the professional knowledge of transformers and high and low voltage distribution cabinets, but also strengthened the school enterprise cooperation between our factory and Wuhan University of Technology, laying a foundation for training more professionals in the transformer and high and low voltage distribution cabinet industry.
New transformers exported to Japan and Zimbabwe
On the 3rd of this month, in Henan Tongniu Transformer Co., Ltd., located in the West Industrial Zone of Luoyang City, a batch of new energy-saving transformers went offline and will be exported to Japan and Zimbabwe. The company is a small and medium-sized enterprise in Henan Province that is "specialized, refined, special and new", and has successfully developed a special transformer with independent intellectual property rights. The core performance
An Shizhu, Chairman of the Municipal Federation of Industry and Commerce, visited the factory
On October 23, An Shizhu, Vice Chairman of the CPPCC Municipal Committee and Chairman of the Municipal Federation of Industry and Commerce, and others visited our factory for investigation. Chairman An investigated the production and operation, scientific and technological innovation, market share and export and foreign trade of the Group in detail, and solicited opinions and suggestions on high-quality development of manufacturing industry in private economy.
Large energy saving rectifier transformer marches into Qinghai Tibet Plateau for the first time
On the 30th of last month, in Henan Tongniu Transformer Co., Ltd., which is located in Luoyang Industrial Park, a large energy-saving rectifier transformer was off the line and ready to be shipped to the Qinghai Tibet Plateau. The large energy-saving transformer independently developed and manufactured by our company can operate stably in high altitude areas above 3500 meters, provide high-quality power support for ultra high-power DC smelting equipmen
On October 20, more than 100 entrepreneurs and technical experts from China's foundry industry visited our factory for inspection and guidance. They highly affirmed and appreciated the enterprise scale, product R&D and technological innovation, and expressed their willingness to take this investigation as an opportunity to further cooperate with our company.
The types of transformers are divided into power transformer, distribution transformer, lower type transformer, Amorphous metal transformer and winding core transformer. A transformer is a device that uses the principle of electromagnetic induction to change the AC voltage, and its main components are the primary coil, secondary coil, and iron core (collision core). The main functions include voltage conversion, current conversion, impedance conversion, isolation, voltage stabilization, etc
Carry out large-scale training on "risk prevention, hidden danger elimination and security".
In order to ensure the safety, harmony and stability during the 70th anniversary celebration of the founding of New China, on the afternoon of September 26, the company carried out a large-scale training on "risk prevention, hidden danger elimination and security". New Electric Power earnestly implements the main responsibility of enterprise safety in production, constantly promotes energy conservation, emission reduction and consumption reduction, and present
TNNPI Transformer Helps Nuclear Industry Development
On July 8, a batch of high-power rectifier transformers for nuclear industry in our factory were being assembled with leads before final assembly, and were ready to be delivered to users next month. This type of special transformer independently developed and manufactured by the company can reduce the energy consumption of rectifier units, provide safe and stable power support for equipment in operation, and has excellent energy-saving performance. It has obtained the national invention patent right.
TNNPI dry-type transformer helped CCTV hold the Mid Autumn Festival Gala
Recently, the news that the 2020 CCTV Mid Autumn Festival Gala has been settled in Luoyang continues to wash the screen in the circle of friends! On the evening of October 1, CCTV will broadcast live all over the world! A "Moonlight Feast" will be staged to promote traditional culture and highlight Luoyang elements. The main venue of the 2020 CCTV Mid Autumn Festival Gala has selected "TNNPI Brand Dry Transformer" as the high-quality power supply, whic
110KV main transformer has helped China's top 500 enterprises for more than 10 years
On June 17, technicians carried out comprehensive maintenance for two 110KV main transformers of Henan Wanda Aluminum Co., Ltd., which had been operating for more than ten years in a row, after power failure. I wish Henan Wanda Aluminum to march forward bravely and create another brilliant future! The main transformer, which is the main step-down transformer used for power transmission a
Leaders of the CPPCC Municipal Committee visited for inspection and guidance
On the morning of August 5, Xiao Hongbin, Vice Chairman of the CPPCC Municipal Committee, and other leaders visited the city for inspection and guidance. Leaders of the CPPCC Municipal Committee are listening to the report of our staff on the innovation of energy-saving and high-efficiency transformer technology and market share. The achievements of our company in scientific and technological innovation and new product research and development
Electric arc furnace transformer and box transformer are successfully delivered
On May 25, the energy-saving electric arc furnace transformer and large box transformer independently developed by New Electric Power were sent to a key project! 1. The low voltage winding of oil immersed transformer generally adopts the cylindrical structure of copper foil winding, except for the small capacity of copper wire; High voltage winding adopts multi layer cylindrical structure, which makes the distribution of ampere turn of winding balanced, with small m
Provide matching transformers for electric furnaces of Fuji Electric Co., Ltd
On the 29th, in Henan Tongniu Transformer Co., Ltd. (hereinafter referred to as Henan Tongniu) located in Luoyang Industrial Park, workers were stepping up the commissioning of six energy-saving smelting rectifier transformers. This batch of equipment is the rectifier transformer, which adopts the patented technology invented by Tongniu Company. It has the advantages of reducing power consumption, strong impact resistance, etc., and can greatly improve the
Principle and structure of EI type transformer
The EI type transformer belongs to low voltage transformers, and its principle and structure are as follows: 1. The ei type transformer consists of an iron core, coil winding (including insulation layer), oil tank, etc. 2. Slotted on the iron core and equipped with magnetic steel; 3. The coil is wound on the inner wall of the coil sleeve and forms a closed loop in contact with the oil core; 4. The oil tank and the shell are connected by screws to form a sealed box body; 5. To ensure that the temperature of the transform
Prospects and Trends of TNNPI Three Phase Transformers in the African Market in 2023
The characteristics of the three phase oil immersed transformer produced by our company are as follows: 1. Large electricity demand: Many parts of Africa lack electricity and require large generators and transformers to meet the electricity demand. Our company's three-phase oil-immersed transformers can provide high voltage and high current output to meet the large electricity demand. 2. High reliability: The climate conditions in Africa are harsh, and sometimes harsh weather and environment may occur. However, three-phase oil-immersed transformers have undergone
What are the inspection items for transformers before they are powered on
Before powering on the transformer, a comprehensive inspection should be conducted to see if it meets the operating conditions. If it does not meet the requirements, immediate action should be taken. The inspection items before powering on the transformer are roughly as follows: 1. The oil valves in the transformer oil storage tank, cooler, and other places should be opened. Discharge the air again and check that there are no leaks in any areas. 2. The grounding of the transformer should be good. 3. The transformer paint should be intact and free of rust. 4.
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