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THE CHARACTERISTICS OF THE DRY TYPE TRANSFORMER CORE
1. Superior Material Selection
Crafted from premium-grade silicon steel with a low iron loss of ≤0.75W/kg, our dry type transformer cores significantly reduce energy waste. The material's high magnetic permeability enhances efficiency, ensuring superior performance even under heavy loads. This choice of material also contributes to the core's durability and resistance against corrosion, extending its operational life.
2. Eco-Friendly Design
Unlike oil-immersed transformers, our dry type models operate without any oils or coolants, reducing the risk of leaks and environmental contamination. This design makes them an ideal solution for environmentally sensitive areas and indoor installations, promoting safety and minimizing maintenance requirements.
3. Compact and Lightweight Structure
Featuring a streamlined design, these cores offer substantial space savings—up to 30% less volume compared to traditional counterparts. Their lightweight construction simplifies transportation and installation, making them perfect for applications where physical dimensions are critical, such as urban substations or commercial buildings.
4. Enhanced Thermal Performance
Equipped with advanced ventilation channels, our cores ensure efficient heat dissipation, allowing continuous operation at peak performance levels. They can withstand temperature fluctuations, maintaining stability and reliability even in extreme conditions. Testing shows a thermal endurance class of F (155°C), far exceeding industry standards.
At present, JISCO core mainly adopts the self-developed 7 step step joint mode, namely "step stack"(or "step joint").7 step step joint transformer core was rated as Shanghai Province high-tech Technical products,national key new products.The core adopts the new all-inclined, seven-step cascade joint form.Compared with the conventional joint mode,the core can reduce the magnetic density of the joint by about 22%,reduce the no-load loss by about3%,reduce the transformer noise by 2-3 decibels,and reduce the no-load current by about 40%.Stack 7 pieces at a time, greatly improving the efficiency of stack.The large transformer adopts the full oblique,longitudinal break yoke seven-step laminated joint form,which has the advantages above,but also convenient for customers to disassemble and insert pieces.
With seven steps, the process of pulling out and inserting the yoke of the sleeve coil is also easier. Only the operation can be carried out according to the number of each step,and the efficiency can be increased to 300%.
The clip used is a bending clip patented by JISCO core.The bending parts have the advantages of fewer parts,high machining precision,accurate positioning,easy assembly,surface treatment and easy painting process. Compared with the traditional profiles(square pipe, channel steel), the bending parts have flexible design parameters and can reach the accuracy of earth 0.5mn), after cutting, CNC bending machine is used for bending forming, which can ensure the forming size. The drawing plate adopts the fan-tail shape, which replaces the common drawing plate pin. It solves the problem of inaccurate positioning of drawing plate pin and avoids the precision decrease caused by welding. It is conducive to the standardization of products,convenient for assembly line production, and can greatly shorten the processing cycle. Compact structure,reduce noise. Core insulation using PET(F class) insulation material, to ensure that the transformer will not produce discharge, leakage, breakdown and other phenomena. Clip from the overall look smooth lines, smooth appearance.
Low no-load loss, low noise, low no-load current, high mechanical strength, strong resistance to short circuit, small partial discharge. The clip is beautiful in appearance and high in practicality. The insulating material has the advantages of simple processing, good thermal stability and good insulation performance.
Core products have superior performance, with low loss, low noise, low no-load current, high mechanical strength, strong short-circuit resistance, small partial discharge, good insulation performance, good thermal stability, accurate size, small burr, superior process coefficient, beautiful appearance and other advantages, to provide 10kV to 1100kV voltage grade full series core solutions.
JISCO maintains long-term stable direct supply relationship with major steel mills all over the world to fully ensure the quality of core main material silicon steel sheet.
Silicon steel sheet adopts the international advanced automatic intelligent production line processing, processing precision, small burr, good flatness, high efficiency, and greatly shorten the delivery cycle.
The whole manufacturing process without running, intelligent workshop constant temperature and humidity, dust-free, the whole process from raw materials to finished core to reduce the additional stress of silicon steel, reduce the core manufacturing process coefficient, effectively ensure the product performance and quality.
Adopting JISCO's unique full sequence laminated mode, advanced technology and equipment, it has remarkable effect on energy saving and environmental protection.
The clip is made of high-strength steel, formed by CNC bending. Compared with channel steel, it has high mechanical strength, more accurate size and positioning, smooth and beautiful appearance.
The core insulation adopts PET(F grade)insulation material to ensure that the transformer will not produce discharge, leakage, breakdown and other phenomena.
Using self-developed fastening glue, safe and environmentally friendly, odorless.
Core
Shanghai JISCO Electrical Technology Co., Ltd. is located in Shanghai Baoshan, with more than 200 employees and the factory covers an area of 33,000 m², including a 12,000 m² digital factory. Shanghai JISCO mainly engaged in the sales of oriented, non-oriented electrical steels, and the processing and production of transformer core for more than 15 years. It is an important partner of BAOWU Group. It cooperates closely with domestic mainstream transformer manufacturers and global mainstream new energy vehicle OEMs. The company operates 3 slitting lines, 12 cross-cutting lines, 2 automatic stacking lines, and 2 packaging lines, with an annual processing and distribution capacity of 60,000 tons of oriented silicon steel. Leveraging advanced automated equipment and digital systems, we deliver exceptional quality, environmentally friendly, and low-carbon core products, aiming to be a leading expert in precision manufacturing for the transformer core industry in China. Shanghai JISCO always adheres to the tenet of "serving customers and operating in good faith", and strives to satisfy every customer and rest assured of every customer.
1.What are the main types of transformer cores?
Transformer cores can primarily be classified into two types: laminated and toroidal. Laminated cores are made up of thin sheets of silicon steel stacked together, while toroidal cores have a doughnut-shaped design that reduces magnetic flux leakage.
2.What material is commonly used for transformer cores?
The most common materials for transformer cores include silicon steel, which has low hysteresis losses and high permeability, making it suitable for transformers operating at power frequencies.
3.How does the core affect the efficiency of a transformer?
The choice of core material and its construction significantly influence the transformer's efficiency by affecting energy loss due to hysteresis and eddy currents. High-quality cores minimize these losses, leading to higher efficiency.
4.What standards should transformer cores comply with?
Transformer cores should meet international standards such as IEC (International Electro-technical Commission) or ANSI (American National Standards Institute), depending on the market requirements. These standards specify the performance criteria and safety regulations.
5.What are the packaging requirements for exporting transformer cores?
Packaging must ensure safe transportation and protection against moisture, corrosion, and physical damage. Common practices include using wooden crates with internal padding and applying rust preventive coatings or desiccants.
THE CHARACTERISTICS OF THE DRY TYPE TRANSFORMER CORE
1. Superior Material Selection
Crafted from premium-grade silicon steel with a low iron loss of ≤0.75W/kg, our dry type transformer cores significantly reduce energy waste. The material's high magnetic permeability enhances efficiency, ensuring superior performance even under heavy loads. This choice of material also contributes to the core's durability and resistance against corrosion, extending its operational life.
2. Eco-Friendly Design
Unlike oil-immersed transformers, our dry type models operate without any oils or coolants, reducing the risk of leaks and environmental contamination. This design makes them an ideal solution for environmentally sensitive areas and indoor installations, promoting safety and minimizing maintenance requirements.
3. Compact and Lightweight Structure
Featuring a streamlined design, these cores offer substantial space savings—up to 30% less volume compared to traditional counterparts. Their lightweight construction simplifies transportation and installation, making them perfect for applications where physical dimensions are critical, such as urban substations or commercial buildings.
4. Enhanced Thermal Performance
Equipped with advanced ventilation channels, our cores ensure efficient heat dissipation, allowing continuous operation at peak performance levels. They can withstand temperature fluctuations, maintaining stability and reliability even in extreme conditions. Testing shows a thermal endurance class of F (155°C), far exceeding industry standards.
At present, JISCO core mainly adopts the self-developed 7 step step joint mode, namely "step stack"(or "step joint").7 step step joint transformer core was rated as Shanghai Province high-tech Technical products,national key new products.The core adopts the new all-inclined, seven-step cascade joint form.Compared with the conventional joint mode,the core can reduce the magnetic density of the joint by about 22%,reduce the no-load loss by about3%,reduce the transformer noise by 2-3 decibels,and reduce the no-load current by about 40%.Stack 7 pieces at a time, greatly improving the efficiency of stack.The large transformer adopts the full oblique,longitudinal break yoke seven-step laminated joint form,which has the advantages above,but also convenient for customers to disassemble and insert pieces.
With seven steps, the process of pulling out and inserting the yoke of the sleeve coil is also easier. Only the operation can be carried out according to the number of each step,and the efficiency can be increased to 300%.
The clip used is a bending clip patented by JISCO core.The bending parts have the advantages of fewer parts,high machining precision,accurate positioning,easy assembly,surface treatment and easy painting process. Compared with the traditional profiles(square pipe, channel steel), the bending parts have flexible design parameters and can reach the accuracy of earth 0.5mn), after cutting, CNC bending machine is used for bending forming, which can ensure the forming size. The drawing plate adopts the fan-tail shape, which replaces the common drawing plate pin. It solves the problem of inaccurate positioning of drawing plate pin and avoids the precision decrease caused by welding. It is conducive to the standardization of products,convenient for assembly line production, and can greatly shorten the processing cycle. Compact structure,reduce noise. Core insulation using PET(F class) insulation material, to ensure that the transformer will not produce discharge, leakage, breakdown and other phenomena. Clip from the overall look smooth lines, smooth appearance.
Low no-load loss, low noise, low no-load current, high mechanical strength, strong resistance to short circuit, small partial discharge. The clip is beautiful in appearance and high in practicality. The insulating material has the advantages of simple processing, good thermal stability and good insulation performance.
Core products have superior performance, with low loss, low noise, low no-load current, high mechanical strength, strong short-circuit resistance, small partial discharge, good insulation performance, good thermal stability, accurate size, small burr, superior process coefficient, beautiful appearance and other advantages, to provide 10kV to 1100kV voltage grade full series core solutions.
JISCO maintains long-term stable direct supply relationship with major steel mills all over the world to fully ensure the quality of core main material silicon steel sheet.
Silicon steel sheet adopts the international advanced automatic intelligent production line processing, processing precision, small burr, good flatness, high efficiency, and greatly shorten the delivery cycle.
The whole manufacturing process without running, intelligent workshop constant temperature and humidity, dust-free, the whole process from raw materials to finished core to reduce the additional stress of silicon steel, reduce the core manufacturing process coefficient, effectively ensure the product performance and quality.
Adopting JISCO's unique full sequence laminated mode, advanced technology and equipment, it has remarkable effect on energy saving and environmental protection.
The clip is made of high-strength steel, formed by CNC bending. Compared with channel steel, it has high mechanical strength, more accurate size and positioning, smooth and beautiful appearance.
The core insulation adopts PET(F grade)insulation material to ensure that the transformer will not produce discharge, leakage, breakdown and other phenomena.
Using self-developed fastening glue, safe and environmentally friendly, odorless.
Core
Shanghai JISCO Electrical Technology Co., Ltd. is located in Shanghai Baoshan, with more than 200 employees and the factory covers an area of 33,000 m², including a 12,000 m² digital factory. Shanghai JISCO mainly engaged in the sales of oriented, non-oriented electrical steels, and the processing and production of transformer core for more than 15 years. It is an important partner of BAOWU Group. It cooperates closely with domestic mainstream transformer manufacturers and global mainstream new energy vehicle OEMs. The company operates 3 slitting lines, 12 cross-cutting lines, 2 automatic stacking lines, and 2 packaging lines, with an annual processing and distribution capacity of 60,000 tons of oriented silicon steel. Leveraging advanced automated equipment and digital systems, we deliver exceptional quality, environmentally friendly, and low-carbon core products, aiming to be a leading expert in precision manufacturing for the transformer core industry in China. Shanghai JISCO always adheres to the tenet of "serving customers and operating in good faith", and strives to satisfy every customer and rest assured of every customer.
1.What are the main types of transformer cores?
Transformer cores can primarily be classified into two types: laminated and toroidal. Laminated cores are made up of thin sheets of silicon steel stacked together, while toroidal cores have a doughnut-shaped design that reduces magnetic flux leakage.
2.What material is commonly used for transformer cores?
The most common materials for transformer cores include silicon steel, which has low hysteresis losses and high permeability, making it suitable for transformers operating at power frequencies.
3.How does the core affect the efficiency of a transformer?
The choice of core material and its construction significantly influence the transformer's efficiency by affecting energy loss due to hysteresis and eddy currents. High-quality cores minimize these losses, leading to higher efficiency.
4.What standards should transformer cores comply with?
Transformer cores should meet international standards such as IEC (International Electro-technical Commission) or ANSI (American National Standards Institute), depending on the market requirements. These standards specify the performance criteria and safety regulations.
5.What are the packaging requirements for exporting transformer cores?
Packaging must ensure safe transportation and protection against moisture, corrosion, and physical damage. Common practices include using wooden crates with internal padding and applying rust preventive coatings or desiccants.
