Dry-type transformer has the advantages of large short-circuit resistance, little� maintenance work, high operation efficiency, small dimension and� low noise,� which is commonly used in places with high requirements of� fireproof� and explosion-proof.� This type transformer is widely used in local lighting, high� buildings, airports, docks, CNC machinery and others. � Its cooling methods are divided into natural air cooling (AN) and forced air cooling (AF).� The transformer can operate continuously for a long time under rated capacity� under natural air cooling.� Output capacity of the� transformer can� increase by 50%� under forced air cooling.� It is suitable for intermittent overload operation or emergency overload operation. Due to the load loss and impedance voltage increase significantly when overload, it is not suitable for long time continuous overload operation.
1. The low-voltage winding is of cylindrical or spiral structure, with high mechanical strength and good short-circuit resistance. 2. The corrugated oil tank is adopted to replace� the oil conservator. The oil tank cover and the oil tank are all-welded along the edge or fastened with bolts, thus prolonging the service life of the transformer oil. 3. After oil removal, embroidery removal, and phosphating treatment, the product is sprayed with three times of primer and one time of finish paint inside and outside. The product is salt fog proof, damp heatproof, and fungus� proof, which can meet the special requirements of metallurgy, petrochemical system, and wet and polluted areas. It is beautiful� and reliable. 4. The transformer oil tank is� fully sealed, and� equipped with� pressure reducing valve, signal thermometer, gas relay, etc according to the standard requirements to ensure the safe operation of the transformer. 5. This series of products are beautiful in appearance, small in size, and can reduce the installation area. It is an ideal maintenance-free distribution product.
1. The transformer core is made of imported high-quality cold-rolled silicon steel sheet, which greatly reduces no-load loss and no-load current. The core is� tightly� bound to ensure the compactness and reduce noise. 2. The high and low voltage windings are� made of oxygen-free copper. The low voltage winding of 500KVA and below is of double-layer cylinder structure,� of 630kVA and above adopt double helix or four helix structure. High-voltage winding adopts multi-layer cylinder structure. 3. Dyn11 is used in the transformer connection group to reduce the influence of harmonics on the power grid and improve the quality of power supply. 4. The transformer is a fully sealed structure, with three coats of primer and one coat of finish paint applied on the inner and outer surfaces. The product is salt fog proof, moisture� proof and fungus-proofing, beautiful, durable and reliable 5. The measured noise value is lower than the standard and maintenance free under normal operation.
As the most widely used power facility, power transformers have a wide variety of types and are of great significance to energy conservation and emission reduction. The S13 fully-sealed oil-immersed power transformer is currently the main selection product for power distribution equipment, with significant energy-saving effects. At present, mainstream distribution transformers generally use S13 laminated core power transformers. It adopts a fully oil-filled sealed type, no oil conservator, and a corrugated sheet box structure. The volume of the transformer changes due to changes in temperature and load, which is completely adjusted by the corrugated oil tank. Its no-load loss is much lower than that of S9, and it is resistant to lightning impact It has strong short-circuit resistance, obvious energy-saving effect, and reduces the overall size of the transformer. The S13 transformer is made of high-permeability oriented silicon steel sheet with a thickness of 0.27-0.30mm and a unit iron loss of 1w/kg, while the new S9 type is an ordinary silicon steel sheet with a thickness of 0.30-0.35mm and a unit iron loss of 1.20 -1.55w/kg. The S13 distribution transformers produced by our company all use 30P series high-permeability oriented silicon steel, using foil-wound coils and new insulating materials and processes. The product is resistant to high temperature, impact, and fully sealed structure design to ensure the stability of transformer oil quality It prolongs the maintenance cycle. At the same time, the integral fuel tank composed of corrugated fin radiator is produced by phosphating and multi-layer anti-rust spraying process, which has good weather resistance.
Product introduction This product conforms to the national standard gb1094.1-2013 power transformer and GB / t6451-2015 three phase oil immersed power transformer technical parameters and requirements.� This product has adopted a series of major reforms in material, technology and structure, so that the electrical performance of the product can reach the advanced level of similar products. With the characteristics of high efficiency and low consumption, it can save a lot of power consumption and operation costs, and has remarkable social benefits. It is a new product promoted by the state. It is also one of the more popular products for users.
Transformer, High Current Transformer, Ultra Isolation Transformer, Three Phase to Single phase transformer, Control Transformer, furnace Transformers, Special purpose transformers, Electroplating Rectifiers, Reactors, D.C.C.T. etc
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Rectifier transformer
Features: Wide range of system current Ratings Hinged terminal cover Various mounting options like DIN rail mounting, Wall mounting Terminal with self lifting screw with dual connection facility giving access from both sides of transformers
Hebei Anmei produce kinds of DIN standard , ANSI standard , AS standard transformer bushing insulator, oil level gauge and transformer accessorise
Used transformers
Used transformers
Product Details It is the insulating sleeve that leads the transformer's internal high and low voltage leads to the outside of the oil tank, which not only insulates the ground as the lead, but also plays the role of fixing the lead. Therefore, the transformer sleeve has the following requirements: (1) it must have specified electrical strength and sufficient mechanical strength. (2) must have good thermal stability, and can withstand the short circuit of the instant overheating. (3) small appearance, small quality, good sealing performance, strong universality and easy maintenance folding.
Transformer bushing insulators are applied as a structure, carrying on conductor through a partition such as transformer tank and insulating it, incorporating the means of attached flange to the partition for medium voltage level. For Entire Range of Bushings Ratings from - 1 Kv to 72 Kv & - 100 Amp. to 10,000 Amp. All Ares Insulator transformer bushing insulators are made of ceramic materials according to IEC 672. Other Transformer bushing custom-made insulators can be supplied upon customer's request and specifications.
Toroidal magnetic cores are made of a Fe-based thin (20 microns) nanocrystalline ribbon and have low loss, high induction of saturation, high operating temperature (up to 150 C), high magnetic permeability. Magnetic cores have a negative temperature coefficient of losses that provides stabilization mode transformer temperature. Application in power high- frequency transformers push-pull,bicyclic SMPS, DC-DC converters, audiotransformers. High permeability provides good electromagnetic connection of windings and low leakage inductance values. HIGHLIGHTS OF THE MATERIAL: Induction amplitude, Bm (25 C) 1,2 T Induction amplitude, Bm (90 C) 1,1 T Curie temperature, Tc 570 C Magnetostriction less than 0,5 x10 ^ -6 Magnetic Permeability (100 kHz) - up to 20,000
Co-based amorphous core in plastic container 1. high permeability 2.Thickness (1820 mkm) 3. Annealing in transverse field, permeability more than 100000, very low loss, flat hysteresis loop 4. Common-mode filter chokes, current transformers, including for precise electronic electricity meters, protective cutout, High Frequency power transformers in SMPS, audio transformers, etc. 5.D from 4-32mm Ribbon wound magnetic core is placed into hard protective container of glass-polyamide and mechanically fixed with silicone sealant. Co-based amorphous ribbon wound magnetic core is placed into hard protective container of glass-polyamide and mechanically fixed with silicone sealant.Size veries:outer D =4-32mm.The container has rounded edges and is designed for direct winding of a thick wire. The container provides reliable mechanical protection and preservation of amorphous material's properties. All materials comply with UL94V-1 / 0. 1. High permeability 2.Thickness (1820 mkm) 3. Annealing in transverse field, permeability more than 100000, very low loss, flat hysteresis loop 4. KEY FEATURES OF THE AMORPHOUS MATERIAL: Induction amplitude, Bm (25C) 0.59 T Induction amplitude, Bm (90C) 0.50 T Curie temperature, Tc 220C Operating temperature range -60C ... 100C Magnetostriction less than 0.110^-6 Typical permeability (10 kHz) - 120 000 Typical permeability (100 kHz) - 35 000
Co-based amorphous core in plastic container 1. high permeability 2.Thickness (18-20 mkm) 3. Annealing in transverse field, permeability more than 100000, very low loss, flat hysteresis loop 4. Application: Common-mode filter chokes, current transformers, including for precise electronic electricity meters, protective cutout, High Frequency power transformers in SMPS, audio transformers, etc. KEY FEATURES OF THE AMORPHOUS MATERIAL: Induction amplitude, Bm(25C) 0.62 T Induction amplitude, Bm(90C) 0.54 T Squareness ratio Br/Bm (@ 100 kHz, 80 A/m) at least 0.90 Curie temperature, Tc 225C Operating temperature range -60C ... +100C Magnetostriction less than 0.110^-6
Toroids have the best possible shape from the magnetic point of view. The flux path is completely closed so the capabilities of the ferrite are fully exploited. Especially for high permeability ferrites the effect of even a minor airgap in the magnetic circuit can spoil up to 50% of the effective permeability. A further advantage is the very low leakage fi eld which makes it a suitable shape for power and pulse transformers. Ring cores are mainly used for pulse- and wide band transformers and interference suppression coils but also in special power supplies.
Due to the high saturation fl ux density of iron powder (950...1600 mT) these ring cores are very suitable for output chokes carrying high DC currents. Another application is found in lamp dimmers as ballast choke. The cores are made of electrolytic iron powder, mixed with a small amount of resin for insulation. They are coated with polyamide 11 (thickness 0.1 - 0.3 mm). The isolation voltage between core and winding is up to 1500 V.
RM cores were designed for use in high Q, high stability fi lter inductors. Their shape allows economic utilization of surface area on the PCB. The range is standardized in IEC 431 and is available worldwide from many suppliers. The sizes are based on the standard PCB grid distance. RM 5, for instance, fi ts on a board space of 5 x 5 modules of 2.5 mm grid. Coil formers and clips were optimized for automated winding and mounting. The slots provide suffi cient space for leads of windings. Magnetic shielding is not as good as with P-cores, but still effective.
