6Kv-110Kv Transformer

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

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

The core of 110kv power transformer is high quality silicon steel, with several layers lapped. It is low loss, low noise, and anti-shortcut etc. Now it is wildly used in power station, power plant, and gets high praise from them. In 1997, sfsz9-31500/110 on-load voltage-regulated transformer has passed the test by ministry of mechanical industry. Main functions and characters: • bell type tank and the wave form shell.; increase the strength of oil box, beautiful appearance; • core is with d shape yoke, 45 angle seaming; • core and oil box are well fixed and well protected on moving; • reasonable wrapping method, in the interior and exterior structure of coil; use support; hard paper bucket between coils increases the capacity of anti-shortcut; • advanced assembling method such as cold pressing and welding technology, installing with sets of coil, paper bucket production. Packed in wooden case

Our produced 110KV series product line has formed a standardized colony, with its versions developed from former 9 versions to present 10ã?�11 or 13 versions. Furthermore, new product versions with a self-cooling configuration, with an air-cooling & maintenance-free configuration, and with a no-core-suspension configuration have been released into the markets. In featured performance, the product line is core suspension free on site, highly efficient and energy saving, high in impedance, low in loss, in noise, in temperature increase, and in local discharge, i.e., â??1 free, 2 highs, and 4 lowsâ?�. This product line may satisfy market demands requiring high power supply quality, low losses and low noise, and a long interval between overhauls.

S11 Series 6kV-35kV power Transformer With Off Circuit Tap Changer,power oill transformer,high voltage step up transformer,distribution transformer The products implement the National Standard GB1094-2013 Power Transformer and GB / T6451-2015 Three-phase Oil-immersed Power Transformer Technical Parameters and Requirements, and are recommended as the major equipment products for the national urban and rural power grid construction and retrofit by the State Economic and Trade Commission. Product Description The products implement the National Standard GB1094-2013 Power Transformer and GB / T6451-2015 Three-phase Oil-immersed Power Transformer Technical Parameters and Requirements, and are recommended as the major equipment products for the national urban and rural power grid construction and retrofit by the State Economic and Trade Commission. S11 series transformer adopts high quality material for copper winding, especially applying the new technology and new material for the coil insulation and active parts, thus the no-load and the load loss are obviously reduced, the performance and structure are more reliable and superior. Product Features  Good Economic Performance The no-load loss for S11 series products decreased 10.3% averagely, no-load current decreased 22.4% based on S9 series. Long Service Life Transformer tank adopts hermetical structure, tank and tank cover can be connected by bolts or welded firmly, the transformer oil wont contact with air, so that extend the service life effectively. High Operation Reliability Improve the relevant sealing parts for the tank, increase the reliability and advance the technical level to ensure the reliability of the seal. Small Installation Area S11-M series transformer tank uses the corrugated plate radiator. When the oil temperature changes, the corrugated plate will proceed thermal expansion, which can replace the role of the oil conservator. the corrugated plate tank has beautiful appearance, less occupied area.

Neon Lamp Transformers from 6KV up to 12KV. Potted under vacuum with epoxy resin. Protections: Output open circuit, overload, output short circuit, earth-leakage, input over voltage.

Low, medium and high voltage transformers 110kV Class Power Transformers General The110kV class low loss transformers are developed by Huapengour workshop through years of service experience and careful analysis of the advantages and disadvantages of the transformers of different manufacturers, both domestic and abroad, and are featured by low loss, low partial discharge, low noise, high strength against short circuit, and high reliability in service. Its outstanding performance has won high reputation throughout China, and the world, and are highly appreciated by experts of the circle. Transformers can be made with welded tank cover and/or flange , Thus obviated from the necessity of lifting out the active part for inspection after arrival on site. Partial discharge level: apparent discharge < 80pC at 1.5 times rated voltage. Noise level : below 58 dB for transformers 63MVA and below with AN cooling Losses: no-load loss 30% lower than specified by GB/T 6451-1995 Reliability: no damage or oil leakage have been found in transformers in service up to the present Short-circuit withstand capability: Our SZ9-31500/110,SSZ-50000/110 transformers successfully passed short-circuit test in National Transformer Quality Inspecting and Testing Center, and in CESI Laboratory of Italy. Winding 1. Partially interleaved continuous winding is used for HV winding to improve its behavior under lightning impulse, because of its more uniform voltage distribution. 2. All the spacers and vertical strips are rounded at corners, in order to obtain a more reliable insulation structure. 3. Zig-Zag directional flow is provided inside the windings, so that all parts of the windings are better cooled, resulting in lower winding temperature rise, and specifically lower hot-spot temperature, thus the insulation life of the transformer is prolonged. 4. Separate regulating windings are provided for both the 110kV high voltage and the 35kV medium voltage side, so that a more balanced ampere-turn is obtained in spite of tap-changing, the short-circuit withstand capability is thus promoted. Radially, the windings of a phase assembly are tight-fit, little space is left between the core and the low-voltage cylinder, and between the windings. All the vertical strips and cylinders are thoroughly dried before assembly, so that a tight phase assembly can be finally obtained. Core 1. High permeability grain oriented high quality cold-rolled sheets are used for the fabrication of core. The sheets are cut on automatic cutting line made by Georg Co. of Germany or Soenen Co. of Belgium. The burrs are controlled within 0.02mm. 2. The core is stacked without stacking the upper yoke, the upper yoke sheets are placed into position after the winding blocks are mounted on the core. The joints of the core sheets are mitred 45fpjoint with step-lap. The stacked core is pressed under even pressure and the edge of the sheets are painted with epoxy resin, so that a straight, robust, integral structure is obtained, helping to reduce core loss and noise. 3. Wooden strips are driven into the space between core and LV cylinder. The yoke is kept tightened by epoxy-resin impregnated glass tape, while the lower yoke is pressed against the wall of the lower tank through threaded bolts. The active part of the transformer is in addition kept in position by devices at three places between the upper yoke and the tank cover in such a way that the active part cannot be displaced during transportation.

Power distribution transformer is one of the important equipments in power supply and distribution system of industrial and mining enterprises and civil buildings. Classification: 1.Power transformers are classified by use: boost (power plant 6.3kv / 10.5kv or 10.5kv /110kV, etc.), contact (220kV/110kV or 110kV/ 10.5kv between substations), voltage reduction (distribution 35kV/ 0.4kv or 10.5kv / 0.4kv). 2.Power transformers are classified by phase number: single phase, three phase. 3.Power transformers are classified by insulation media: oil-immersed transformers (flame retardant, non-flame retardant), dry transformers, 110kVSF6 gas insulated transformers. url:http://www.ybtransformer.com

A transformer is an electrical device which is used to transfer power from one circuit to another through electromagnetic induction. The power transfer is accompanied without frequency change. In an electronic system, the term power transformer is used to provide a number of AC supplies of several voltages and appropriate values of current from the public electricity supply. Tungwell oil immersed transformers are up to 750kV, 1500MVA and cast resindry type transformers are up to 110kV, 40MVA. Our design team has very strong design capabilities and uses a variety of design software including 2D and 3D electrical field FEM and Magnetic flux leakage calculators. The resulting products come with many advanced features such as low loss design, short circuit withstand assurance, reliable extra-high voltage protection with overheating controls. The range of small power transformers can be from500-7500kVA The range of medium power transformers can be from-100MVA The range of large power transformers can be from100MVA & beyond