High saturation flux density---reducing core sizes. Rectangle structure---easily for coil assembly. Core cut---good resistance to the dc bias saturation capacity . Low loss---reducing temperature rise(1/5-1/10 of the silicone steel). Paper ctn
Overview Low no-load loss, better quality! Safety 1. Product accepts the NOMEX Paper Insulation System with high level of inflaming retarding, anti-explosion, and fire rating. 2. Professional technology, excellent performance in mechanical strength and short-circuit resistance and long serve time. Reliable 1. H-class heat-resisting temperature: 180¡æ,C-class level for the major insulating material (220¡æ) with efficient overload capacity. 2. Low partial discharge, high level of insulation with long serve time; 3. NBC protection, no crack display. Environmental Friendly Product uses Nomex Paper as the main insulation material, which create fire retardation, high insulation level, low partial discharge, long service life. Transformer Insulation Bass H, main material insulation class C, it increases the overloading capacity. Low noise level and the copper can be recycling after the life cycle of the transformer. Transformer has high capability to resists moisture, dust and salt. Amorphous Core 1) All raw material are supplied by Hitachi Metals with iron loss less than 70-80% of the standard silicon steel. 2) Company has special treatment, procedure and manufacturer process; which has patent number as: 200810238258.6, 20082015857.5, 200820215858.X, 200820215812.8, 200820215814.7. 3) Core structure is dean and strong, which do not influenced by the movement created during transportation. 4) The three column structure has capability to withstand high level harmonics, and vector group can be in Dyn11, Yyn0. Low Voltage Winding features LV uses high quality imported copper foil and class H insulation foil to apply on polyester-imides. In between each layer, it uses Nomex paper. Windings are insulated by vacuum pressure impregnation (VPI) systems, which make it into concrete form. Both ends of the winding drum have applied resin to seal the ends. 1) For better withstand of short circuit capability 2) For better thermo shock resistance and enhance the life expectancy of the transformer 3) Winding has high capability to resists moisture, dust and salt. High voltage winding features HV winding uses several layer coil type with vertical airway structure. It wraps Nomex paper on to copper for insulation. In between each layer, it uses Nomex paper for insulate. Vacuum, pressure, impregnation (VPI system has applied on the coil to make the structure concrete. Both ends are sealed by resin. 1) Multi-layer design can enhance the inrush capability 2) Enhance short circuit capability 3) High insulation level on the insulation material with good airway throughout the coil design, increase the capability of thermo shock. That way the transformer life expectancy is longer. 4) Winding has high capability to resists moisture, dust and salt
Our mature technology has fully considered the various types of high voltage inverter. We carefully developed zpsg dry-type nomex insulation the entire frequency transformers. Our products include 9-pulse, 12-pulse, 18-pulse and 27-pulse, which can be natural or air-cooled type transformer. The transformer is small and has strong overload capacity, low partial discharge, short circuit capability strong, flame retardant, low noise, and with energy saving of up to 40% significant advantages
Multi-layer winding coil Low-voltage coil adopted high quality foil and rolled with the automatic foil machine, argon arc welding with high-accuracy standard; presoak dmd in the interlamination as insulation material. Use presoak glass for insulation both outside and inside, sealed with epoxy resin, followed by solidify in the curing oven, in order to reached the target of high level of humidity resistance. About amorphous metal transformer Amorphous metal transformer introduction The development of the amorphous metal in 1970s, it has been widely used in 1990 for a high energy saving material for the transformer industry. Right now, over one million sets of amorphous metal type transformer had been connected to grid all over the world. The longest proven save and reliable transformer had been running for more than 30 years, and it still perform satisfactory in the power industry. The energy saving is huge and it shall be the new era products in the power industry
Overview High-class security level Sg10 product contains no flammable resin, with no combustion-supporting, no explosion and toxic gas. High-class reliability High-low voltage coil adopted the nomex system, dipping h-class impregnating varnish with vpi vacuum pressure system, and solidify under high heat. Product belongs to h- class(180¡æ), and c-class (220¡æ) for main insulation material, with high- class anti-short circuit capacity. 20% overload is allowed under good ventilation condition. Energy saving & environmental protection Material (copper, steel) recovery afterlife; Burning without toxic chemical substance for nomex paper; Degradation of insulation material, without polluting; Low no-load loss, energy saving; Low noise, flexible design
Low loss, low noise level, high stability This series product possesses four low and one high characteristics which are: low lose. Low noise, low temperature rising.Low partial discharge and high reliability, as well as core-hoisting free and no leakage. With the approval of national transformer quality inspection and testing center. Allthe index of the transformer achieve jb/t3837 standard
We are engaged in supply of a wide range of Power & Distribution Transformers from 160kVA to 415MVA, 500kV Class to fulfill the specific demands of the Power & Industrial sectors and the Railways. These Transformers find use in industries such as Power Utilities, Process Industries, Railways, Mines, Electricity Boards, Industrial users etc in both the Domestic as well as Global markets We also offer Switchgear products ranging from 3.3kV to 420 kV, to meet the requirements of electrical sub-stations and installations. Transformer Types Distribution (160kva & Above) Power Dry Type/Oil filled/Cast Resin
Good Good
Power transformer, bulk transformer Ei19-ei133
Input;110-220v Ei19-ei133
(1) property: high density, high mechanical strength, high electric strength and low compression index. (2) quality standard: iec 60641-3-1: 1992 /gb/t 19264.3 -2003 (3) size: 4400mmx2200mm, 6300mm x 3200 mm and customized size (4) thickness: 1.0 1.5 2.0 2.5 3.0 4.0 5.0 6.0 7.0 8.0 (5) material: 100% unbleached sulfate pulp imported from canada. (6) detecting instruction: on-line highly sensitive metal detector, avoiding metal particle existence (7) application: mainly used in oil-immersed transformer as insulation material, also used in reactor mutual inductance ware, electric device and etc. According to customer's request
According to customer's request According to customer's request
10 kva to 10 mva transformers as per required designs.
Flash memory, 4 mbit, 70 ns, 32-tsop; memory type:flash; memory size:4mbit; memory configuration:512k x 8; supply voltage min:2.7v; supply voltage max:3.6v; memory case style:tsop; no. Of pins:32; clock frequency:14mhz ;rohs compliant: yes Tssop
Ic, usb host controller, 48mhz, tqfp-48; controller family/series:(not available); core size:8bit; supply voltage min:3v; supply voltage max:3.45v; digital ic case style:tqfp; no. Of pins:48; ram memory size:256byte; cpu speed:48mhz ;rohs compliant: yes Qfp48
It is based upon advanced technologies introduced from abroad and the successful experiences of leading manufacturers both domestic and abroad. It conforms entirely with up-to-date National Standard GB1094.1~2-1996¡ê¬GB1094.3-2003 GB1094.5-2003 and International Standard IEC76 commended by international electrical engin- eering committee, and are proud of the following outstanding features: 1. Low loss, and significantly energy-saving. The average no-load loss is 35% lower than prescribed by National Standard GB/T 6451-2008. 2. The core laminations are made up from high-quality cold-rolled grain-oriented silicon steel sheets with chamfered joints and without punched holes, and are stacked without the upper yoke sheets in place, so that they are effectively improved no-load upper together with lower frame. 3. Zigzag directed flow of oil are provided within the windings, so that all parts of the windings can be cooled more evenly. 4. The regulating winding is a separate winding which apart from the high voltage main winding. In this way, total ampere-turn balance between windings ; and the axial electrodynamic force during short circuit can be reduced, thus upgrading the short circuit withstand capability of the transformer as a whole. 5. The windings of one phase are assembled into an integral phase block before placing into the core. 6. The winding manufacture, winding assembly core and winding assembly work are all proceed in totally closed clean department. 7. Core frames in the form of a flat plate are used for clamping the core, and are joined together by side beams. The core and coil assembly is fixed in the tank, being positioned against the tank at six sides rigidly, so that there can be no displacement of the assembly due to impacts during transport. 8. Transformer tanks are fabricated with steel plates wide enough so that there are no weld joints on each surface. The steel plates for tank walls are pressed into corrugated shape to increase mechanical strength and to reduce noise due to vibration of the tank wall. 9. Diaphragm membrane is provided within the conservator, preventing direct contact of oil with air, protecting the oil from aging, thereby prolonging the service life of oil. Magnetic oil-level gauge reflects correctly the oil level in conservator. Flat plate-type radiator can effectively cool down the transformer. 10. Reliably sealed, and fine machined for sealed surface. Used double gasket grooves in their jointing surface and kept tight with high quality gasket material. If required by the customer, the upper and lower part of the tank can also be welded tight. 11. High quality paint is applied as surface finish of the tank and exposed steel parts, after shot-blasting and pretreatment, thus ensuring a durable life and glossy surface. 12. Quality assurance rules are also observed for all insulating parts, from raw material to final assembly. Strict regulations are observed for drying, wrapping and storage, preventing the absorption of moisture, swelling, and deformation. 13. Main components Because of good relationship and long-term co-corporation with all well-known sub-suppliers, we can meet the requirements of customers with whatever types of components they wish to have. fumigation wooden case
Our company absorbed advanced technology from home and abord, combined with international and domestic famous manufacturer¡¡¥s advanced technology and experienced manufacturing skills for many years, through the optimization of innovative, successfully produce low-noise, low loss, low partial discharge, high withstand short circuit ability series transformer. In according with latest national safety standard gb1094.1-2-1996, gb1094.3-2003, gb1094.5-2008 and the international electro-technical commission standard iec-76, the main structure features are as follows: 1.Shell-type tank, and a fully folded plate structure, elegant appearance. 2.The core with chamfered joints, non-porous, non-stacked on the iron yoke technology, scientific and rational control of core clamping force, reduce the core losses and electromagnetic noise. 3.Full range location of core and tank, ensure shock resistance during transportation. 4.Advanced and reliable electrical calculation procedures, quantitative analysis of coil positioning the magnetic field distribution, the distribution of oil flow and leakage magnetic field distribution, to ensure adequate electrical strength and low loss, and effective inhibition the partial overheating. 5.The body of transformer adopt multi-coil total assembly, constant drying measures to ensure the coils less rebound and uniform contraction, effectively improving the transformer ability to withstand short circuit. 6.The core and coil internal diameter side adopt strengthen hard paper tube to achieve no gap structure between core and the coil, enhance the strength to withstand short-circuit of coil. Fumigation wooden case
Furnace Transformer is a power equipment which is suppo- rting for EAF. It has more stringent requirements in electric, magnetic, thermal, mechanical and other aspects compared with other transformers, and has to comply with the operation process of various furnace transformers and load characteristics, so that it can meet users, and facilitate energy-saving emission reduction and other conditions. There are many kinds of furnace transformers. The company mainly produce the following products: High impedance furnace transformer, DC arc furnace transformer, ladle refining furnace transformer, submerged arc furnace transformer (including ferroalloy furnace tran- sformer, calcium carbide furnace transformer, yellow pho- sphorus furnace transformer,single phase titanim slag furnace transformer etc.), electro slag furnace transformer, frequency induction furnace transformer, single-phase graphite furnace transformer, etc. Take on-load tap furnace transformer with -shaped winding which is developed independently for example, the features as fellows: The transformer is a arc furnace power transformer which is used to make a high-quality steel and alloy smelting arc furnace. It consists of series voltage regulator transformer and main transformer which are mounted on the same tank. The two low-voltage winding are made of the , replacing the cumbersome welding process between two low-voltage windings. Features: 1.Wide range of voltage-regulate. Secondary voltage of differential voltage levels meets the arc furnace steel-making process requirements. 2.High-voltage has no restriction of switching insulation level, and it (e.g. 110kV) can be reduced to low-voltage directly, eliminating the intermediate substation and saving more than 30% invested. 3.Easy to choose suitable voltage-level load tap changer, economic and safe. 4.It can be accessed compensation capacitor in order to improve network power factor. 5.The main transformer works in constant flux density. Make full use of materials and have a good conservation. 6.Using the same reverse-phase parallel, electric (or magnetic) shielding, transposed conductors and so on to reduce losses and improve efficiency. 7.A separate voltage coil is used so that ampere-turn balance is good, coupled with cylinder pressure nail structure, its ability to withstand short-circuit is also increased and has high reliability. 8.Using third breaking off instead of primary breaking off so that it can be achieved with low price and high life of low-voltage circuit breakers instead of high price and low life of high-voltage circuit breaks. Take 31500/110 arc furnace transformer for example, the load loss, no-load loss, no-load current is dropped 13%, 17%, 26% compared with the original product respectively. It is a real energy-saving emission reduction innovative product. fumigation wooden package
Rectifier transformer is a transformer which used as the source of rectifier equipment. And primacy side of rectifier transformer connected with AC power is called line side, and secondary side connected with rectifier is called valve side. Our company use the advanced techniques and manufacturing process, and with domestic colleges and universities to develop a number of research projects. Using procedural design, insulation breakdown mechanism, the electric field numerical analysis and insulation technology, the impact of characteristics and anti-sudden short-circuit strength of winding, the loss of eddy current filed calculation are analyzed and calculated. With manufacturing experience on rectifier transformer for many years, our company has got major break-though on the basis of the traditional calculation, which will further improve the reliability and advancement of products. Features about rectifier transformer: 1.The rectifier transformer load is non-linear impedance, and valve side windings of rectifier transformer would get the currents which contain fundamental and other high-order harmonic superposition. And line side also gets corresponding non-sinusoidal currents connected by rectifier circuit coupling method. 2.According to different requirements of various customers, the valve side of rectifier transformer has a variety of special coupling method, such as: dual-back-star with inter phase reactor, three-phase bridge, star-delta parallel, six-phase bridge by inter phase reactor. 3.To improve power factor and reduce the line side harmonic currents of high-power rectifier equipments, rectifier transformer is needed to use star-delta winding phase displacement, phase-shift windings by phase displacement, autotransformer phase displacement, to improve the number of pulse of rectifier equipment. 4.According to the user¡¡¥s process requirements, the rectifier transformer line side voltage is required (such as 220kV) straight down to a very low valve side voltage (such as 1kV). The valve side voltage of rectifier transformer is required within a wide range of on-load tap from 5% - 105%. Auto voltage regulator and main theme of unity, string variable voltage regulator and other ways are used in rectifier transformer to achieve the purposes of a wide range voltage. 5.Self-saturable reactor can be used to change over and stabilize voltage in order to smooth rectify voltage. And some use silicon control to regulate voltage. 6.Valve side current of high-power rectifier equipment is very large, reaching 100kA and even greater. To improve power factor and avoid partial overheating and uneven distribution of current rectification components, it¡¡¥s required the technology of reverse-phase parallel. 7.With the wide application of AC frequency control technology, newly developed three-crack drive rectifier transformer came into being. And the lower voltage valve side of this transformer cracked into three independent branches, which can be made to supply for three different load power, which achieve ¡¡ã multi functional ¡¡À effect, reducing loss and saving area. 8.In order to reduce the large current in the fuel tank and other structures caused by loss, the rectifier transformer used magnetic shielding technology and so on. A number of 220kV and below and different kinds of rectifier transformers have been manufactured for the general industrial, electrochemical electrolysis, transmission, traction frequency, variable frequency power supply, DC power transmission and other industrial sectors over ten years, and got the user¡¡¥s high praise. Recently, the 220kV level on-load-tap rectifier transformers supporting the country¡¡¥s largest 600 thousand project of caustic soda is done, and got the high praise of users. fumigation wooden case
