1. Exceptional Efficiency and Minimal Loss
High-Quality Material Process: Our transformers are crafted with premier silicon steel sheets, such as oriented silicon steel, and employ cutting-edge winding methods like foil or helical winding. This superior craftsmanship effectively minimizes no-load losses (iron loss) and load losses (copper loss), ensuring optimal performance.
2. Energy-Saving Design: Our transformers adhere to stringent international energy efficiency standards, with certain models achieving efficiencies exceeding 99%. This remarkable efficiency level substantially reduces long-term operational costs, offering significant savings over time.
3. Tailored for Complex Power Grids
Versatile Voltage Regulation: Featuring either on-load voltage regulation (OLTC) or no-excitation voltage regulation, our transformers adeptly accommodate a broad spectrum of voltage fluctuations, ensuring reliable performance across various conditions.
Harmonic Suppression: Our transformers incorporate specialized winding designs, like the Dyn11 connection group, to effectively suppress third harmonic distortions. This makes them highly compatible with the grid connections of renewable energy sources such as photovoltaic and wind power.
Robust Short-Circuit Endurance: Through rigorous short-circuit testing, we have optimized our impedance design to minimize the adverse effects of fault currents, thereby enhancing the durability and reliability of our transformers.
4. Customization and Global Versatility
Flexible Design: We offer tailor-made solutions, customizing capacity from 10kVA to a remarkable 1000MVA, and voltage levels up to ±1100kV ultra-high voltage. Special protections such as salt spray resistance and explosion-proof measures are available to meet specific customer requirements.
Type
Power Transformer
Insulation Class
A-Class
Lightning Impulse Withstand Voltage
as Per IEC Standard
Core Material
Silicon Steel
Main product
Company Profile
Jiangsu Yawei Transformer Co., Ltd. commands a robust manufacturing prowess and operates with a dynamic and proficient production and marketing team. The Yawei Group proudly employs a dedicated workforce of 1,800 professionals, with over 150 highly skilled engineers and technicians who are the backbone of our innovative capabilities.
We present an extensive range of transformer solutions: dry-type transformers below 110KV, 220KV, and 500KV, alongside those below 35KV. Our portfolio further includes oil-immersed transformers, cutting-edge new energy transformers, and solar energy storage transformers. Our product line extends to prefabricated substations and specialized transformers such as reactors, furnace transformers, rectifier transformers, mining transformers, separators, and phase shifters. Our exemplary products enjoy immense popularity within the local market and have a significant export footprint to international markets like China, the United States, Europe, India, Madagascar, Vietnam, and Cambodia.
Our transformer designs adhere to a comprehensive array of international standards, including IEEE, ANSI, DOE, CSA, UL, and IEC, ensuring global reliability and safety. Furthermore, we operate six specialized branch factories, each dedicated to producing essential power transformer accessories such as enameled wires, oil tanks, radiators, molds, and fixtures, which contribute to our integrated manufacturing process.
This extensive production line guarantees unwavering consistency in the quality of our transformer offerings. We welcome OEM and ODM orders, providing a minimum two-year warranty on all Yawei transformers, a testament to our commitment to quality and customer satisfaction. At the forefront of modern industry, transformer factories serve as a crucial nexus in the power transmission network, renowned for their precision craftsmanship and advanced technological machinery.
Within our cutting-edge facility, every meticulously engineered transformer serves as the backbone of electrical systems, symbolizing the relentless progress of industrial innovation.
Upon entering our factory, you are immediately surrounded by an impressive array of high-performance equipment operating with flawless precision: Precision Winding Machines: These machines expertly wind coils with unparalleled accuracy, ensuring every component of the transformer aligns perfectly with stringent design specifications.
Automated Iron Core Production Line: Utilizing the most advanced silicon steel sheet cutting and stacking technologies, we create the robust core that forms the heart of our transformers.
Eco-Friendly Insulation Material Processing System: Our selection of insulation materials not only excels in performance but also adheres to stringent environmental standards, highlighting our steadfast commitment to sustainable and eco-friendly manufacturing practices.
Company advantages
Our certificates
Exhibition
At the prestigious exhibition, Yawei Transformers brilliantly displayed the company's outstanding advantages and extraordinary strengths, magnetizing clients from multiple countries for engaging discussions and enriching exchanges. The booth's innovative design was a standout feature, emphasizing the diverse product line and unparalleled quality that Yawei brings to the transformer industry.
Company Advantages and Strengths
Yawei Transformers prides itself on having a highly advanced R&D team and state-of-the-art manufacturing facilities, committed to delivering exceptionally efficient and dependable power solutions. With a wealth of industry experience, the company has garnered a sterling reputation through its unmatched technical prowess and exemplary customer service. Product Diversity and Quality
At the exhibition, Yawei unveiled a myriad of transformer types, including:
High-efficiency transformers: Engineered to meet and exceed international energy efficiency benchmarks, significantly curbing operating costs.
Smart transformers: Equipped with cutting-edge monitoring systems enabling real-time data oversight, enhancing operational safety. Customized products: Tailored and bespoke solutions crafted to meet specific client requirements, adaptable to various application scenarios.
Every product undergoes stringent quality assessments to ensure robustness and longevity across diverse environmental conditions. Transactions and Collaborations
During the illustrious exhibition, Yawei Transformers triumphantly sealed deals with numerous clients from an array of countries, further broadening its international footprint. Through profound and insightful discussions, both parties explored promising future collaborations, underscoring Yawei's robust competitiveness and significant influence in the global power market. This exhibition not only amplified Yawei Transformers' brand prestige but also established a formidable groundwork for future growth and development.
Packaging and transportion
At Yawei Transformers, we pride ourselves on our unwavering commitment to integrity and efficiency when it comes to packaging and transportation. Our meticulous processes ensure that every product reaches our valued customers in pristine condition, undamaged, and ready for use.
Integrity of Wooden Crate Packaging
Yawei Transformers employs robust wooden crates designed with exceptional features to guarantee the utmost protection for our products:
Durability: Crafted from premium-quality wood, our packaging boasts unmatched resilience against potential damage during transit, offering peace of mind.
Shock-absorbing Design: Our crates include advanced cushioning materials that absorb shocks and impacts, providing a protective embrace for the transformer.
Good Sealing: Expertly designed to be tightly sealed, our crates thwart moisture and dust intrusion, preserving the impeccable quality of each product.
Transportation Efficiency
Yawei Transformers has forged strategic alliances with top-tier logistics companies to deliver unparalleled transportation efficiency. Our comprehensive strategy includes:
Optimized Logistics Solutions: Meticulously planned routes, tailored to specific destinations and transportation modes, dramatically reduce delivery times.
Real-time Tracking System: Our cutting-edge online tracking system allows customers to monitor their orders at their convenience, offering complete transparency and peace of mind.
Regular Feedback Mechanism: We maintain proactive communication with our logistics partners, swiftly addressing any issues that may arise during transportation.
With these initiatives, Yawei Transformers guarantees the safe and swift arrival of products, reinforcing customer satisfaction and trust. We ensure that every delivery upholds our promise of excellence.
FAQ
Q: What is a power transformer? A: A power transformer is a device that transfers electrical energy between two or more circuits through electromagnetic induction. Q: How does a power transformer work? A: Power transformers work on the principle of Faraday's law of electromagnetic induction, where alternating current in the primary coil induces a voltage in the secondary coil. Q: What are the types of power transformers? A: The main types of power transformers include step-up transformers and step-down transformers. Q: What is the difference between a step-up and step-down transformer? A: A step-up transformer increases the voltage while decreasing the current, and vice versa for a step-down transformer. Q: What is the core of a power transformer made of? A: The core is typically made of silicon steel, which reduces energy loss due to magnetic hysteresis. Q: What is the role of the winding in a transformer? A: Winding carries the electrical current and provides the inductive effect necessary to induce voltage in the other winding. Q: How efficient are power transformers? A: Transformers can have high efficiencies, ranging from 90% to 99%, depending on design and load conditions. Q: What is the importance of insulation in transformers? A: Insulation prevents short circuits between windings and between windings and the core by providing electrical isolation.
Q: What is a compact transformer? A: A compact transformer is a smaller, lighter, and more efficient version of the traditional transformer, designed to save space and reduce energy consumption. They are often used in environments where space is limited, such as urban areas or industrial settings. Q: How do compact transformers work? A: Compact transformers work on the same principle as standard transformers, using magnetic fields to transfer electrical power from one circuit to another through mutual induction.The primary difference is their design, which is optimized for space and efficiency. Q: What are the benefits of using compact transformers? A: The benefits include reduced space requirements, lower energy consumption, less noise, and improved efficiency. They also tend to have a longer lifespan and require less maintenance. Q: Are compact transformers suitable for residential use? A: Yes, compact transformers are suitable for residential use, especially in areas where space is at a premium. They can be used for various purposes, including voltage regulation and power distribution. Q: Can compact transformers handle high loads? A: Yes, compact transformers can be designed to handle high loads. Their design and materials can be optimized to ensure they can handle heavy electrical loads while maintaining efficiency and safety. Q: What materials are used in the construction of compact transformers? A: Materials used in the construction of compact transformers include high-grade steel for the core, copper or aluminum for the windings, and insulation materials like paper or varnish. Q: How do compact transformers improve efficiency? A: They improve efficiency through advanced core designs that reduce magnetic losses and optimized winding designs that minimize electrical resistance. Q: Can compact transformers be used in outdoor environments? A: Yes, compact transformers can be used in outdoor environments. They are typically designed with weather-resistant materials and coatings to protect against environmental elements.
Q: What is a substation transformer? A: A substation transformer is a heavy electrical device used in power systems for stepping up or stepping down the voltage level between various stages of power transmission and distribution networks. Q: Why are transformers used in substations? A: They enable efficient transmission over long distances by reducing the current through the skin effect and reducing conductor size, and they provide appropriate voltage levels for local distribution networks. Q: What is the difference between a step-up and a step-down transformer? A: A step-up transformer increases the voltage while decreasing the current, while a step-down transformer decreases the voltage while increasing the current. Q: What is the importance of the transformer's thermal rating? A: The thermal rating indicates the maximum temperature the transformer can reach without sustaining damage, ensuring safe operation under varying load conditions. Q: What is the typical lifespan of a substation transformer? A: A well-maintained transformer can last 30 to 50 years. Q: What is the function of a tap changer in a transformer? A: A tap changer allows the user to adjust the turns ratio on the go to maintain the desired output voltage. Q: What are the common types of cooling systems in transformers? A: Air, forced air, natural oil, forced oil, and water-cooled systems. Q: How does a conservator tank help in transformer cooling? A: It compensates for oil volume changes due to temperature variations and prevents vacuum formation. Q: What is the purpose of a Buchholz relay in a transformer? A: The Buchholz relay detects faults within the transformer's oil-filled parts, such as internal faults.
Q: What is the purpose of a distribution transformer? A: A distribution transformer is used to reduce the high voltage from transmission lines to a level suitable for commercial and residential distribution systems. Q: How does a distribution transformer work? A: lt works on the principle of electromagnetic induction, converting high voltage AC to lower voltage AC through a process involving magnetic fields and coils of wire. Q: What are the typical voltage levels for distribution transformers? A: Distribution transformers usually operate between 2.4 kV and 35 kV on the high side and between 120/208 V,2400V,and 480 V on the low side. Q: How do you size a distribution transformer? A:The transformer is sized based on the maximum demand in kVA, ensuring there is enough capacity to handle peak loads with a safety margin. Q: What is the difference between a dry-type and liquid-filled distribution transformer? A: Dry-type transformers are cooled by air and are typically used indoors, whereas liquid-filled transformers use oil for cooling and insulation, suitable for outdoor use. Q: How do you determine the right impedance for a distribution transformer? A: The impedance is selected based on system requirements for fault current limitation and voltage regulation under various loading conditions. Q: How do you minimize the audible noise produced by distribution transformers? A: Noise can be minimized through proper installation, maintenance, and selection of low-noise designs when available. Q: What is the expected lifespan of a distribution transformer? A:The lifespan can vary between 20 and 40 years depending on the quality, maintenance. and environmental factors. Q: How often should a distribution transformer be inspected and maintained? A: Routine inspections should be performed annually, with major maintenance activities every 5 to 10 years, depending on usage and environmental conditions.
Q: What is a pad mounted transformer? A: A pad mounted transformer is an electrical transformer that is mounted on a concrete pad and enclosed in a metal or weatherproof box, typically used for medium-voltage and high-current power applications. Q: How does a pad mounted transformer work? A: It works by stepping down high voltage from transmission lines to a lower voltage level suitable for distribution to commercial and residential areas. Q: What are the main parts of a pad mounted transformer? A: The main parts include an iron core, primary and secondary coils, insulation, a cooling system, and an enclosure. Q: Where are pad mounted transformers commonly installed? A: They are usually found in urban and suburban areas, near the point of distribution where electricity is supplied to consumers. Q: What is the typical kVA range for pad mounted transformers? A: The kVA range can vary widely, from a few hundred kVA up to several thousand kVA, depending on the application's power requirements. Q: Can pad mounted transformers be used indoors? A: Yes, some pad mounted transformers are designed for indoor use and must comply with specific safety standards for indoor environments. Q: Are pad mounted transformers explosion-proof? A: Some models are designed to be explosion-proof, particularly when they are used in hazardous locations where flammable gases or dust may be present. Q: How do l size a pad mounted transformer for my needs? A:You should calculate the maximum demand load (in kVA) of your facility and select a transformer that can meet or exceed that requirement. Q: What is the standard primary voltage for pad mounted transformers? A: Standard primary voltages can range from 2.4 kV up to 35 kV, depending on the utility and application.
Q: What is a pole mounted transformer? A: A pole mounted transformer is a device that reduces high voltage electricity to a lower voltage for use in homes, businesses, and other facilities. It is attached to a utility pole. Q: How does a pole mounted transformer work? A: A pole mounted transformer uses electromagnetic induction to reduce the voltage. lt has two coils of wire, the primary coil connected to the high voltage supply and the secondary coil connected to the low voltage output. Q: Why are pole mounted transformers used? A: Pole mounted transformers are used because they allow for the distribution of electricity over long distances. They reduce the voltage so it is safe for use in homes and businesses. Q: What are the advantages of pole mounted transformers? A:The advantages of pole mounted transformers include their compact size, ease of installation, and low maintenance. They also reduce the need for large, expensive substations. Q: Can I upgrade my pole mounted transformer to increase capacity? A: Yes, it is possible to upgrade your pole mounted transformer to increase its capacity. Contact your local utility company to discuss your needs and find out about the options and costs involved. Q: How much power do pole mounted transformers typically handle? A: Pole mounted transformers typically handle anywhere from 10 kVA to 500 kVA. Q: What is the difference between a step-up and step-down transformer? A: A step-up transformer increases the voltage, while a step-down transformer decreases the voltage. Pole mounted transformers are typically step-down transformers. Q: How often do pole mounted transformers need to be inspected? A: Pole mounted transformers should be inspected regularly, at least once a year, to ensure they are operating properly and safely. Q: What should I look for during a pole mounted transformer inspection? A: During an inspection, you should look for signs of wear and tear, such as cracks or leaks in the tank, loose connections, and damage to the cooling system. You should also check for any unusual noises or smells.
Q: What is a furnace transformer? A: A furnace transformer is a type of electrical transformer specifically designed to provide power to industrial furnaces, allowing for precise control over the voltage supplied to the furnace. Q: How does a furnace transformer work? A: A furnace transformer works on the principle of electromagnetic induction. It step downs or step ups the voltage supplied by the power grid to meet the specific requirements of the furnace. Q: What is the difference between a furnace transformer and a regular transformer? A: A furnace transformer is specifically designed for use with industrial furnaces, while a regular transformer can be used for various applications. Furnace transformers are typically larger and more robust than regular transformers, with features such as tap changers for adjusting the output voltage. Q: How do l choose a furnace transformer? A: To choose a furnace transformer, consider factors such as the power rating, input and output voltages, current capacity, efficiency, cooling method, insulation class, and regulatory compliance. Consult with a transformer specialist or engineer to ensure that the selected unit will fulfill all operational requirements and regulatory compliance. Q: What is the typical lifespan of a furnace transformer? A: The lifespan of a furnace transformer can vary widely depending on usage, maintenance, and environmental factors. However, many furnace transformers are designed to last for 10-15 years or more. Q: Can I use a portable generator to power my furnace transformer in case of a power outage? A: Yes, you can use a portable generator to power your furnace transformer in case of a power outage. However, it's important to ensure that the generator is properly sized and rated for the voltage and current capacity of your transformer system. Additionally, make sure that the generator is properly grounded and connected to the transformer in a safe and secure manner. Consult with a qualified electrician or electrical contractor for assistance in safely connecting your portable generator to your furnace transformer system during power outages. Q: Can l install a surge protector on my furnace transformer to protect it from power surges? A: Yes, installing a surge protector on your furnace transformer can help protect it from power surges caused by lightning strikes, power outages, or other electrical disturbances.Surge protectors work by diverting excess electricity away from sensitive electronic equipment like transformers and into the ground where it can be safely dissipated. Be sure to choose a surge protector that is rated for the voltage and current capacity of your furnace transformer. Consult with a qualified electrician or electrical contractor for assistance in selecting and installing a surge protector for your transformer system.
Q: What is a dry transformer? A:A dry transformer is an electrical transformer that uses solid insulating materials instead of liquid, such as oil, to insulate between the windings and the core. Q: How does a dry transformer work? A: lt works on the principle of electromagnetic induction, where an alternating current in the primary coil induces a magnetic field that, in turn, induces a current in the secondary coil. Q: What are the advantages of using a dry transformer? A: They are safer in terms of fire risk, easier to maintain, can be more compact, and are suitable for indoor use where oil isn't desirable. Q: Where are dry transformers commonly used? A: They are often used in industrial settings, commercial buildings, and indoor applications where space is limited and fire safety is a concern. Q: Are dry transformers more expensive than oil-filled ones? A: Answer: Initially, dry transformers can be more expensive than oil-filled transformers, but they might have lower maintenance and operational costs over time. Q: What are the different types of dry transformers? A: There are several types, including dry-type core, dry-type shell, and cast resin transformers, each with distinct construction and applications. Q: How do l determine the size of a dry transformer needed? A: Calculate the total power demand in kVA, considering future expansion and peak demand, and select a transformer with a slightly higher rating. Q: Can dry transformers be used outdoors? A: Yes, certain dry transformers are rated for outdoor use and come with weatherproof enclosures. Q: What is the typical efficiency range of dry transformers? A: Dry transformers typically operate with efficiencies ranging from 90% to 99%, depending on load conditions and design.
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