Transformer bobbins Made from Phenolic, PBT, Rynite or Nylin
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
1. Inverter duty Solar transformers, suitable for solar load profile. 2. Multi-winding (2 to 6 windings), oil-filled or dry type. 3. 2MVA to 12.5MVA, LV Side: 0.35kV to 0.69kV, HV Side 3.3kV to 33kV. 4. Low-loss, with Aluminum or Copper winding. 5. Electrostatic shield between LV and MV Winding. 6. Fully type tested at internationally recognized laboratory. 7. Designed with high efficiency, environmental friendliness, superior operational reliability and minimal Total Cost of Ownership. 8. Ideally suited for large MW scale solar PV plants.
outdoor / indoor Transformer Available
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.
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
Rectifier transformer
Used transformers
Used transformers
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
Transformer working for medium frequency induction furnace, electric arc furnace, continuous casting machine, rolling mill steel plant. The S9, S10, S11 series of 20kV and 35kV three-phase oil-immersed rectifier transformers produced by our company meet the requirements of CE, UL, CSA, ROUSH, GB1094 "Power Transformer" and GB / T6451-2008 "Three-Phase Oil Immersed Power Transformer technical parameters and requirements "standard. The core is made of high-quality cold-rolled silicon steel sheet, and the coil is made of high-quality oxygen-free copper, which is beautiful in appearance and safe in operation. Widely used in steel mills, urban and rural industrial and agricultural power grids. Main functions and features: High reliability, advanced performance level and reasonable economic indicators. The iron core adopts step-shaped three-level joints, and the surface is painted with cured paint to reduce loss and noise. New winding structure, reasonable oil channel design, and new insulation structure to improve mechanical strength and short circuit resistance. The fuel tank has various forms, beautiful and generous. 220kV, 110kV and 66kV low loss series transformers; products with reliable performance, low partial discharge, low loss, low noise, high reliability, and strong resistance to sudden short circuit, its excellent performance has won the majority of users and related Experts highly praise. Partial discharge: at 1.5 times the rated voltage, the apparent discharge of the product is less than 80pC; Noise: Product noise of 63MVA and below is below 58dB (AN); Loss: No-load loss is about 30% lower than the IEC standard; Reliability: All in-service products have no damage accidents and oil leakage; Short-circuit resistance: SFZ11-50000 / 132 has passed the short-term ability test of the Netherlands KEMA and the National Transformer Quality Supervision and Inspection Center laboratory. Passed CE, UL, CSA, ROSH certification
Power transformer Transformer working for medium frequency induction furnace, electric arc furnace, continuous casting machine, rolling mill steel plant. 220kV, 110kV and 66kV low loss series transformers; products with reliable performance, low partial discharge, low loss, low noise, high reliability, and strong resistance to sudden short circuit, its excellent performance has won the majority of users and related Experts highly praise. Partial discharge: at 1.5 times the rated voltage, the apparent discharge of the product is less than 80pC; Noise: Product noise of 63MVA and below is below 58dB (AN); Loss: No-load loss is about 30% lower than the IEC standard; Reliability: All in-service products have no damage accidents and oil leakage; Short-circuit resistance: SFZ11-50000 / 132 has passed the short-term ability test of the Netherlands KEMA and the National Transformer Quality Supervision and Inspection Center laboratory. Passed CE, UL, CSA, ROSH certification Coil: A All coils are made of 100% oxygen-free copper, and high-voltage coils are tangled. Continuous structure, in order to improve the distribution characteristics under impulse voltage, to obtain a more uniform electric field distribution, the bracing pads are rounded to improve the high reliability of insulation. A Iron core: The core material is high-quality cold-rolled silicon steel sheet with high magnetic grain orientation, and adopts advanced German Georg automatic shearing line to control the burr of the cutting mouth to be less than 0.02 mm. The silicon steel sheet adopts the technology of not stacking the iron yoke. The joint of the silicon steel sheet is a 45 �° full oblique stepped joint. After the iron chip is stacked, the overall pressure and epoxy glue are used to make the iron core three-pillar two yoke become a strong , Flat, high vertical accuracy, effectively improve the no-load performance, while reducing noise. Between the iron core column and the inner coil, the iron core column is supported by a brace plate, the iron yoke is tensioned by a glass ribbon impregnated with epoxy resin, and the lower iron yoke and the lower fuel tank are topped by a back pressure nail bolt. In addition, the upper iron yoke and the upper fuel tank are fixed in three places, so the body can withstand the bumps during transportation without displacement in the fuel tank.
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
