The step-up transformer used in tunnel can solve the problem of large voltage drop due to the far line.
>Overview (step-up transformer manufacturer) SG series three-phase step-up transformer is a new generation of energy-saving power transformer developed and produced by our factory on the basis of reference to similar international products and China's national conditions. From 300VA to 1600KVA, it conforms to international and national standards such as iec439 and gb5226, and the winding adopts the method of whole train winding without tire; The insulation grade of the transformer reaches f or H level by vacuum impregnation, and the product performance reaches the advanced level at home and abroad. SG series three-phase step-up transformer is widely used in the circuit with AC frequency from 50 Hz to 60 Hz and voltage below 660V. It is widely used in import of important equipment, precision machine tools, mechanical and electronic equipment, medical equipment, rectification device, lighting, etc. All kinds of input and output voltage, connection group, number and position of regulating tap (generally ± 5%), distribution of winding capacity, configuration of secondary single-phase winding, application of rectifier circuit, and whether enclosure is required can be designed and manufactured according to the requirements of users. However, if the product is used for a long time, the total power shall not exceed 80% of the rated capacity. Product features: the common mode interference and other midlines in the power grid can be relieved by establishing a new neutral line grounding in the step-up isolation transformer. The step-up isolation transformer transforms the three line delta connection into a four wire yo system, and the shielding further eliminates the high-frequency impulse interference and noise coupled by the transformer. Although the shielded isolation transformer has the interference (pulse and high frequency) from various N-G sources Noise) can be effectively prevented, but the transformer must be properly grounded, very strict, otherwise anti common mode interference will not be effective. Our company can design and produce high quality isolation transformer for customers. Features and advantages: high isolation, good N-G performance, high common mode interference suppression, easy conversion of △ to y or y to △ voltage tap, easy conversion Ø design technical indicators according to user's special performance requirements 1. Input rated voltage: three-phase 380V or single-phase 380V, working frequency: 50hz-60hz3 efficiency: ≥ 95% 4 temperature Rise: < 605 waveform distortion: < 0.1% 6 high voltage test: 2500V, 1 minute no breakdown service condition 1 applicable altitude: ≤ 5000m2, ambient temperature: - 15 ℃ ~ + 45 ℃ 3 relative humidity: ≤ 90%. 4 the installation site should be free of gas, steam, chemical deposition, dirt, conductive dust and other explosive, flammable and corrosive substances that seriously affect the insulation strength of the transformer. If it does not meet the above conditions, it should be determined through consultation with us. SG, DG, OSG, ODG (three-phase, single-phase, auto coupling) YSD dry-type step-up transformer is a series of products designed and produced by our company to adapt to different grid systems and equipment with special requirements in various countries. It has a wide range of applications, can withstand instantaneous overload and can work continuously for a long time. >The company's product service guarantee: all products are inspected in strict accordance with the national standards before leaving the factory to ensure 100% of the factory pass rate. The company promises that all products will be guaranteed for one year! Shanghai Yinxi Electrical Equipment Manufacturing Co., Ltd. is a comprehensive power supply company integrating scientific research, production, sales and product maintenance. The company has strong strength in testing, testing and quality control. Since its inception, the company has been engaged in the production of transformers, voltage regulators, voltage regulators, switching power supplies, and distribution boxes, etc., more than 10 series, more than 100 kinds of products, products are exported to more than 50 countries and regions such as North America, Western Europe, the Middle East, North Africa and so on, which has been well received by the majority of users. After sales guarantee: 1. The company produces and sells various types of silver Xi transformers, silver voltage regulators and silver Xi voltage regulators, which can be customized according to customer requirements, sizes and specifications. 2. The quality guarantee period of dry-type transformer, voltage regulator, voltage regulator, reactance and complete grounding device is one year. 3. In case of any product quality problem during the warranty period, our company is responsible for free repair or replacement. 4. The company has opened a national free 24-hour service hotline 021-52668758, and will reply to the handling opinions within 8 hours after receiving the complaint, and according to the user's requirements, it can be divided into 24 hours to handle, 48 hours to handle, and the time agreed with the user. 5. Due to the power failure caused by product accidents, our company promises that within 24 hours in developed traffic areas, the company has: AC on-off test, AC life test, reliability test, flashover and breakdown test, comprehensive characteristic test, high and low temperature and high temperature resistance test, alternating and constant damp heat test, ball voltage test, leakage and aging test, drop and vibration test, ultrasonic imaging Non destructive testing, plastic mechanical property test, plastic flame retardant and electrical performance test, carbon and sulfur analysis test, silicon steel sheet iron loss test, chemical analysis test, step-up transformer dry-type step-up transformer 220 V step-up transformer manufacturer step-up transformer manufacturer professional production of various types of transformers: isolation transformer, three-phase isolation transformer, single-phase transformer Phase isolation transformer, dry isolation transformer, three-phase dry isolation transformer, high-power transformer, 10-1000kva transformer. 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