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Technical Specification

1. Working Altitude: ≤ 2000m, and use values derated by 1% for every 100 meters when above 2000m. The tolerance temperature is up to 3000m

2. Indoor Relative Humidity: daily average ≤95%, monthly average ≤90%

3. Maximum Ambient Temperature: +40℃, use with derated values when above 40℃

4. Minimum Ambient Temperature: -25℃

5. System Rated Frequency: 50 ~ 60Hz

6. Installation Place: Indoor cabinet

7. Storage Temperature: -40 ~ +70℃

8. Salt Spray: ≤0.5mg/m3

9. Mechanically Active Substances: sand ≤300mg/m3, dust (floating) ≤0.4mg/m3, dust (sediment) ≤350mg/m2/day

10. Ground Horizontal Acceleration and Vertical Acceleration: ≤0.25g /0.125g

GB1094.1 Power transformers-Part 1: General

GB1094.3 Insulation levels, dielectric tests and external clearances in air

GB1094.11 Power transformer-Part 11: Dry-type transformer

JB/T9640 Arc furnace transformer 

JB/T 8636-1997 Power convertor transformer

GBT21419 Transformers, power supplies, reactors and similar products - EMC requirements

GBT10228 Specification and technical requirements for dry-type power transformers

GB3859.3 Semiconductor convertors - Transformers and reactors

JB/DQ2113 Electrochemistry rectify transformer

Product Applications

1. Stable electrical performance: optimize the design scheme based on industry application. Precise electrical parameter design and scientific structural design ensure excellent electrical performance of the product. To ensure efficient ventilation and heat dissipation, the high-voltage coil adopts air-cooling design (domestic layout) or water-cooling design (European layout), and an axial multi-duct structure to reduce ventilation resistance. The low-voltage coil adopts a water-cooling structure to ensure efficient heat dissipation

2. High degree of dynamic stability: The high-voltage coil is foil-wound (domestic layout) or pie-type laminated (European layout), and the low-voltage coil uses copper tube or copper plate winding (domestic layout) or copper plate tailor-welded winding (European layout), with extremely high mechanical strength and strong anti-sudden ability to meet extremely harsh load environments

3. Good thermal stability: advanced simulation calculations optimize the temperature rise of the heating parts and hottest spots of the product, leaving sufficient temperature rise margin. Imported DuPont N0mex-T410 insulation material is selected to ensure high reliability of insulation and temperature resistance. According to the water-cooling heat dissipation characteristics, the water flow in the water-cooling pipeline is reasonably distributed to achieve the best cooling effect. The iron core has a built-in water-cooling heat exchanger to enhance the heat dissipation capacity of the iron core. It uses 30Q120 high magnetic permeability silicon steel sheets and multi-stage stepping multi-stage lamination method effectively reduces no-load loss, no-load current and noise. During design and manufacturing, local heating problems caused by large current leakage magnetic eddy currents in the transformer are better eliminated, and the product has extremely high reliability

4. Strong overload capability: the product has strong overload capability and overvoltage capability. The design and manufacturing fully consider the user's industrial electrical network and load characteristics. The electrical performance, temperature rise, insulation withstand voltage and accessory selection, etc. meet certain overload requirements. To suppress di/dt, limit short-circuit current, and effectively protect rectifier components, the impedance is 30% higher than that of a power transformer of the same capacity

5. Superior performance indicators: no-load current design and loss indicator manufacturing values are lower than the national standard series transformers of the same capacity, fully considering the economy and reliability for users

6. The water system pipeline design is safe and reliable. The main pipe uses stainless steel pipes or copper pipes to meet anti-corrosion requirements. The water outlet uses international standard sealing threads to effectively prevent leakage. The branch connecting pipes use high-temperature resistant nylon fiber and rubber composite pipes or polytetrafluoroethylene pipes to ensure reliable temperature and pressure resistance and durability

7. The design temperature difference between inlet and outlet water is less than 5℃. The design value of water flow rate is less than 1.5m/s. The design value of working pressure is less than 3bar, ensuring the stability and reliability of the water cooling system

8. Adopt the horizontal structure of copper tube windings or the side-standing structure of copper plate windings. The transformer can be treated with "three-proof paint" according to customer requirements (anti-salt spray, anti-humidity and heat, anti-mold). It has good decorative properties, strong corrosion resistance, good gloss retention, good color retention, good leveling and hiding power, simplified structure and beautiful appearance.

9. The rectifier transformer is equipped with a temperature protection device, which is composed of highly integrated, highly reliable switching power supply module with bus communication and other components, used for measurement, control, protection and communication

Product Dimensions

Domestic Layout

European Layout