Hebei anmei company produces various transformer accessories. The main products include high-voltage and low-voltage transfomrer bushings (DIN standard, ANSI standard, AS standard, and so on.), oil level gauge, dehydrationg breather, release valve, thermometer, valve, butterfly valve, brass gate valve, bellows, terminals,dry change accessories and so on. company can also be produced according to customer drawings. The products are exported to all world, Asia, the Middle East, South America, Europe, and so on.
DIN Standard Bushing for Transformer12kv 24kv 36kv 250A Electrical Porcelain Insulator DIN(12~36kV/250~630A ) Sequence Number Code Model (Dimensions) Opening arcing distance Creep distance Shield Weight(kg) H h2 h3 Md d1 d3 d4 E C d0 h1 1 AM.DDA.001 DIN-12/250 427 125 60 M121.75 140 74 51 146 70 78 174 300 2 5.3 2 AM.DDD.001 DIN-12/630 475 140 75 M202.5 150 88 60 174 70 92 174 310 2 8 3 AM.DFA.001 DIN-24/250 517 140 60 M11.75 145 74 51 146 100 78 249 440 3 7.2 4 AM.DFD.001 DIN-24/630 565 155 75 M202.5 160 88 60 174 100 92 249 460 3 10.4 5 AM.DGA.001 DIN-36/250 617 140 60 M121.75 155 74 51 146 200 78 349 610 4 8.3 6 AM.DGD.001 DIN-36/630 690 175 75 M202.5 180 88 60 174 200 92 354 670 4 13.5 7 AM.DGA.010 DIN-36/250 617 135 55 M121.75 190 74 51 146 200 78 354 950 6 12.5
DIN Standard Bushing for Transformer12kv 24kv 36kv 250A Electrical Porcelain Insulator
ISI marked, High Quality, Energy Efficient and Reliable Distribution Transformers upto 33 kV class; ranging from 10 kVA to 5000 kVA.
Sc(b)h15 amorphous alloy dry-type distribution transformer Transformer can be installed indoors deep into the load center, so as to adapt to the need of high-density load of big modern cities. With the no-load loss reducing by 75% and the load loss reducing by 15% than that of gb/t10228 table 4 group i, the amorphous alloy distribution transformer is the state of the art energy efficient dry type transformer
HVDC transformers are key components of HVDC stations. HVDC converter and inverter stations terminate long-distance DC transmission lines or DC sea cables. This type of transformer provides the interface between AC grids and high power rectifiers and are used to control the load flow over the DC transmission lines. These actors adapt the AC grid voltage to an adequate level which is suitable for feeding the valve system of DC converter and inverter. Design options The design concept of HVDC transformers is mainly influenced by the rated voltage, rated power and transportation requirements like dimensions, weight and mode of transportation. Many large power HVDC converter station are located in rural areas of low infrastructure. Frequently, special geometrical profiles have to be fulfilled in order to move such transformers by railway. Typically, HVDC transformers are single phase units containing 2 winding limbs. This concept can include either 2 parallel valve windings (two for delta or two for wye system, fig. 5.8-1) or two different valve windings. In order to reduce the total transportation height frequently the core assembly includes 2 return limbs. Due to redundancy requirements in HVDC stations 3 phase units are quite uncommon. The valve windings are exposed to AC and DC dielectric stress and therefore a special insulation assembly is necessary. Furthermore, special lead systems connecting the turrets and windings have to be installed in order to withstand the DC voltage of rectifier. Additionally, the load current contains harmonic components of considerable energy resulting in highe r losses and increased noise. Above all, special bushings are necessary for the valve side to access upper and lower winding terminals of each system from outside. Conclusively, two identical bushings are installed for star or delta system. For approving the proper design and quality of manufacturing special applied DC and DC polarity reversal tests have to be carried out. The test bay has to be equipped with DC test apparatus accordingly and needs to provide adequate geometry to withstand the DC test voltage. HVDC Transformers react as coupling elements between the connected AC grids and high power rectifiers, and are necessary for adapting the voltage. They insulate the rectifier itself from the AC grid and generate a phase shift. New HVDC applications are seen between existing, well-established networks. A back-to-back link can easily combine two different AC networks together, even with different frequencies. Such solutions can also help customers to strengthen and optimize their networks. The changing environment provides more and more opportunities to HVDC solutions, and Siemens is prepared to provide its customers with either our solution or with converter transformers as a loose component .
Low magnetic noise High-efficiency Excellent loading regulation Easy assembly Very low no load losses and magnetizing current Half size and weight compared to EI transformer Various input options: 100/110/117/120/220/230/240V, 50/60Hz Dielectric strength: 3kV/1 minute 100% electric parameters test Power range from 18 to 5,000VA available According to customers' requirement Class B insulation system Optional single dual-primary weight:1.5kg height:48mm
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
Product Introduction The test system is mainly for power transformer distribution transformer no-load load characteristics; Dc resistance; Variable ratio group test also can be tested transformer power frequency withstand voltage test. At the same time external pick up ct interface is reserved for capacity increase. Transformer comprehensive test station measurement part is controlled by single chip microcomputer and testdata such as digital display no-load and short circuit are sampled synchronously by single chip microcomputer avoiding errors caused by manual calculation of voltage ammeter and power meter readings respectively in traditional test methods. product names Comprehensive test platform for transformer characteristics Transformer characteristic test station Transformer comprehensive test bed Transformer test station Transformer test bed Transformer comprehensive test station
TKBB-S Transformer Ratio Tester is specially designed for three- phase transformer in power system especially for transformer of type Z winding and other transformers whose zero-load current is relatively high.Transformer turns ratio test is very important in order to find out the transformer has the right ratio corresponding on its rated voltage in primary and secondary. TKBB-S is single phase, automatically test set specially designed for turns ratio, phase shift and excitation current measurements of power, distribution and instrument transformer. The tester has wide testing range fast testing speed favorable repeatability flexible data processing convenient connection complete protection easy learning and convenient operation.
The on-load tap changer is the only moving part connected with the transformer circuit so more and more attention has been paid to the detection of the on-load tap changer.In the electrical equipment handover and preventive test regulations it is required to check the action sequence of on-load tap changer measure switching time etc.This device is mainly used for measuring the transition waveform transition time transient resistance of transformer on-load tap changer three-phase synchronism etc.
Specifications Condition New Frequency 0-50Hz, 100-200Hz, 200-400Hz Tensile Strength 125-150Mpa, 175-200Mpa, 75-100Mpa Features Easy To Install, Four Times Stronger, Superior Finish Warrenty 5yrs Automation Grade Automatic Production Power 100-250kw, 250-500kw, 50-100kw, 500-750kw
Characteristic 1.oil immersed test transformer has excellent material selection, reliable quality and good stability 2.the voltage margin, corona sound small, small board 3.the use of new insulation materials, small size, light weight test Packaging Details: 1.Wrapped with plastic film. 2.Fixed in a wooden case. 3.Wooden case on a pallet.
Rated Input Current:2mA Rated Output Current:2mA Turns ratio:1000:1 Phase Angle Error:less than 45'(2mA,50) Linear Range:0~1000V 0~10mA(50) Mounting(mm):PCB
Rated Input Current:5A Rated Output Current:2.5mA Turns ratio:2000:1 Phase Angle Error:less than 20'(1A,100) Linear Range:0~20A(100) Mounting(mm):D5.0 * Small size * High accuracy * Good consistency * Used for current and power measurement
Advantages of toroidal transformers 1. High efficiency and high performance price ratio Toroidal core has good electromagnetic performance, like high saturation magnetic flux density, high primary inductance and large unit magnetizing power capacity, which improve the utilization ratio of the core and the winding window area, and reduce the number of turns and the direct current resistance, and also greatly improve the overload capacity and load efficiency of the toroidal transformer. Based on these conditions, the product design does not need to consider more power margin and heat dissipation conditions, and also effectively control the cost. 2. Excellent no-load characteristics Toroidal core is wound with high permeability silicon steels, no gap on magnetic circuit, low magnetic resistance. Under the same power and magnetic field density, the no-load loss and exciting current of toroidal transformer are only 50%~70% of other transformers, which reduce the standby loss and improve the equipment operation reliability. 3. Low noise There is no gap of toroidal core, the silicon steels are tightly winded, and after the vacuum impregnation with pressure it becomes a whole. Even in the middle, high magnetic frequency, it will not cause noise due to magnetic expansion. This is what the EI, dry-type and other lamination cores cannot match. 4. Low magnetic flux leakage, low leakage inductance Toroidal core has a high saturation flux density, and the coil is uniformly distributed on the core, magnetic potential difference can effectively reduce the magnetic leakage. Normally, with the same transformer specifications, the magnetic flux leakage of toroidal transformer is only 1/10 of the EI one. The main coil is tightly and rationally layered winded, and then the leakage inductance of the primary and secondary coils can be better coupled to reduce the primary and secondary leakage inductance. 5. Safety of electrical structure There is a certain thickness of stacked dielectric film between the core and primary coils, primary coil and electrostatic shielding, electrostatic shielding and secondary coil, secondary coil and the installation plate, which completely isolates the electrical gap and is safe without maintenance. Therefore, isolated toroidal transformers have been widely used in medical equipment transformers.
Rectifier Transformer Rectifier Transformer (ZPS, ZBS, ZSS) Product Introduction: Rectifier transformer is for power transformer with rectifier device. Its role is to provide AC power for the rectifier. Then the rectifier will change AC power to DC power supply. Itâ??s mainly used in the metallurgy, chemical industry and some other industry. Itâ??s low-loss, low-noise, shock resistant, and short-circuit resistant. Rectifier transformer also has the advantages of strong ability of over-load, compact structure, small size, reliability of power supply. Product Features: Stable electrical performance: combing the load feature and the status of fluctuation of electric grid and voltage, atmospheric over-voltage, according to the rectifier transformer load conditions, determine a reasonable and reliable insulation level and insulation model, to ensure the reliable and stable electric performance of the product. Environmentally safe coefficient of the productâ?§1.67. High degree of dynamic stability: the winding has a high mechanical strength , with a strong ability of anti contingencies, to meet the bad environment of load. During the process of design and manufacture, it eliminates the dynamic unstable source caused by magnetic leakage or non-normal transportation. The product has high dynamic stability. The resistance is 30% higher than the power transformer with same capacity. Good thermal stability: advanced product design. The heating part and temperature rise of the hottest dot are strictly controlled, with sufficient temperature margin. If necessary, additional axial oil duct can be added in the coil. Cooling way can be chosen according the load loss value of the coil, then to allocate the oil flow reasonably to reach the best cooling effect. Main temperature rising index is at least 5C lower than national standard. Copper wire is used as coil and down-lead, selecting low current density. High ability of overload: the product comes with strong capacity of over-load and over-voltage. It can be operated safely in long-term under the condition of rated load. It can be operated safely in long-term under the condition of 100% full load ( environment temperature 40C);the terminal on the transformer connected with the motor can bear 1.5 times the rated current, which is 5S. Load character is fully considered during the product design and manufacturing. Temperature rising, insulation properties and choice if attachment are considered to meet the overload requirements. Superior performance index: no-load current design. Manufacturing capacity is lower than that of normal transformers with same capacity that regulated by national standards. Obvious energy-saving, low noise Simplified structure, elegant appearance. The oil tank adopts the technology of anti-leakage to avoid the leakage, eliminating the fuel tank leakage.
Casing of Transformer Casing of Transformer Product Introduction It is not necessary for general dry-type transformer to equip casing, means the protective degree is IP00, if need to be equipped with casing, protective degree is IP20, Casing is constituted by a safety shield to prevent accidental electrocution. Under the conditionof having dripping water, the transformer can be equipped with casing of that protective level is IP23. According to users special requirements, we can provide casing with IP54 protective level. Temperature Controlling and Cooling Devices Temperature controlling device Transformer adopts BWDK temperature controlling device, temperature measuring component is in the top of low voltage winding that can detect automatically and cyclically display working temperature of three-phase winding. When the temperature of winding reaches setting value , thermometer can automatically start the fan, stop the fan, signal transfer output, tripping output, etc. Air cooling device Transformer is equipped with dedicated Axial flow cooling fan, transformers capacity can be increased by 40%, even more under the condition of forced- air cooling.
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product description S13-M oil-immersed distribution transformers for the distribution network and industrial and mining enterprises in the power supply and distribution system in the important equipment Transformer in the industrial and mining enterprises in various regions of the country, agriculture and civil construction can also be used in petroleum, chemical industry, Multi-chemical substances. Capacity in the 630 ~ 2000kvA range of low-voltage windings with cylindrical or spiral structure, high mechanical strength, ampere-turn distribution balance, the product of good short-circuit resistance. S13-M oil-immersed transformer body to add the positioning structure, so that in the transport process does not produce displacement, and all fasteners with fastening nuts to ensure that products in the long run is not loose during the fasteners to meet the Not hanging core requirements. S13-M oil-immersed transformer uses a corrugated oil tank, cancel the oil conservator, cover and box along the complete death or bolt fastening, extending the service life of transformer oil. S13-M oil-immersed transformer surface to the oil, to embroidery, phosphate coating after spraying primer, topcoat, to meet the metallurgical, petrochemical and wet pollution areas of special use requirements. Selection of components, using a sealed transformer tank, according to standard requirements to install a pressure relief valve, signal thermometer, gas relays, etc., to ensure the safe operation of the transformer. The series of products beautiful shape, small size, can reduce the installation area, is the ideal maintenance-free high-quality products.
