In industrial automation, precision manufacturing, new energy power distribution and other scenarios, issues such as voltage instability, harmonic interference and equipment leakage often lead to production line downtime, damage to precision instruments and frequent power supply safety hazards. With years of deep cultivation in R&D and manufacturing of electrical equipment, Shanghai Yimai Electric Equipment Manufacturing Co., Ltd. has developed the SG Series Three-Phase Dry-Type Isolation Transformer relying on mature technology, strict quality inspection and customized services. This product has become a bestseller in the market, and has become the preferred solution for industrial power supply of thousands of enterprises thanks to its core advantages of high-efficiency isolation, stable voltage regulation, anti-interference performance and long service life.

1. Core Advantages: Why the SG Series Becomes a Bestseller

Breaking through the shortcomings of traditional transformers, Yimai Electric SG Series Three-Phase Dry-Type Isolation Transformer adopts high-end materials and advanced technology to create a high-performance product suitable for complex working conditions, with outstanding core strengths:

• High-Quality Materials, Durable & Low-Noise: The iron core is laminated with high-permeability cold-rolled silicon steel sheets, featuring low loss, low heat generation and excellent noise control; the winding is made of pure copper enameled wire with integral lapping winding, delivering excellent insulation performance, strong overload capacity and a service life far exceeding ordinary aluminum-wire products.

• Electrical Isolation, Safety Protection: Achieves complete electrical isolation between input and output circuits, effectively blocking power grid harmonics, surges and leakage conduction, protecting precision equipment from interference, eliminating personal electric shock risks, and complying with industrial safety power distribution standards.

• Flexible Voltage Adaptation: Supports mainstream voltage conversions such as 380V to 220V, 380V to 200V, 400V to 380V, and can be customized with special transformation ratios to perfectly match the voltage requirements of imported and exported equipment.

• Dry-Type Structure, Maintenance-Free: Oil-free design, fireproof, moisture-proof and dust-proof, no regular oil maintenance required, suitable for both indoor and outdoor installation, reducing later operation and maintenance costs.

• Strict Quality Inspection, Reliable Quality: Strictly follows the ISO9001 quality management system. Each product undergoes withstand voltage test, loss test and temperature rise test before leaving the factory to ensure long-term stable operation and worry-free after-sales service.

2. Complete Selection Manual: Accurate Model Selection Without Mistakes

Model selection is the key to efficient operation of transformers. The Yimai Electric SG Series covers full specifications from low power to high power. You can easily match the suitable model by referring to the following parameters and steps:

2.1 Core Models & Specification Parameters

Note: The power range covers 5KVA-1000KVA, and special voltage, frequency and protection class can be customized to meet non-standard scenario requirements.

2.2 Core Selection Steps

1. Determine Rated Power: Calculate the total power of all electrical equipment. It is recommended to reserve a 10%-20% margin for transformer power to avoid overload damage; for motor equipment with large starting current, select the model according to 3-5 times the power.

2. Check Input & Output Voltage: Clarify the on-site power supply voltage (e.g. 380V three-phase) and the voltage required by the equipment (e.g. 220V three-phase, 200V three-phase) to ensure the transformation ratio matches.

3. Consider Installation Environment: For humid, dusty and outdoor scenarios, it is recommended to choose protection class IP23 or above; for clean indoor environments, IP20 can be selected to save costs.

4. Confirm Special Requirements: If you need to install voltmeters, ammeters, circuit breakers, lightning protection modules, or customize outdoor stainless steel enclosures, please communicate with Yimai's technical team in advance.

2.3 Selection Pitfalls to Avoid

• Do not blindly select low-power transformers, as overload will cause heat generation, burnout and shorten service life;

• Autotransformers are not recommended for non-professional scenarios; isolation transformers have higher safety and are suitable for precision equipment;

• Be sure to confirm the voltage frequency (50Hz/60Hz) for imported equipment to avoid equipment failure caused by frequency mismatch.

3. Full-Scenario Application Fields: Covering Power Distribution Needs of Major Industries

With its super adaptability, Shanghai Yimai SG Series Three-Phase Dry-Type Isolation Transformer is widely used in industrial manufacturing, new energy, medical treatment, rail transit, import and export equipment and other fields, becoming a core equipment for stable power supply in various industries:

3.1 Precision Machinery & Machine Tool Industry

Suitable for precision machine tools such as CNC lathes, machining centers, engraving machines and servo motors. It isolates power grid harmonics and interference, ensures equipment operation accuracy, avoids machining errors and equipment downtime caused by voltage fluctuations, and improves production line stability.

3.2 New Energy, Photovoltaic & Wind Power Sector

Used for power distribution isolation of photovoltaic inverters and wind power generation equipment, realizing safe connection between power grid and new energy equipment, suppressing surge current, protecting core components such as photovoltaic panels and wind power control cabinets, and adapting to low-voltage power distribution scenarios of new energy power stations.

3.3 Import & Export Equipment Matching

Aiming at voltage differences of imported equipment from Japan, the United States, the European Union and other regions (such as injection molding machines, printing machines, testing instruments), customized voltage transformation schemes are provided to realize conversions such as 380V to 200V and 480V to 380V, making imported equipment perfectly adapt to the domestic power grid; it also supports domestic equipment export to adapt to overseas power grid voltages.

3.4 Medical & Public Facilities

Applied to the IT power distribution system of medical equipment such as hospital CT, DR and monitors, realizing electrical isolation, eliminating leakage risks and ensuring accurate operation of medical equipment; also suitable for power transmission and distribution in high-rise buildings, airports, stations, tunnels and other places, with fire safety and stable operation.

3.5 Industrial Heating & Mining Scenarios

Suitable for high-current heating boilers, electroplating equipment, resistance welding machines, etc., providing stable low-voltage high-current output; explosion-proof models can be customized for mining scenarios to meet underground safe power supply requirements, with excellent moisture resistance and anti-interference performance.

3.6 Other Scenarios

UPS/EPS emergency power supply matching, communication base station power distribution, chemical equipment power supply, ship power distribution system, etc. The SG Series transformers can be easily applied to any power supply scenario requiring voltage conversion, electrical isolation and anti-interference.

4. Exclusive Services of Yimai Electric: Worry-Free Selection & After-Sales

• Pre-Sales Technical Support: Professional team provides free on-site survey, power calculation and customized selection scheme to solve non-standard needs;

• Stock + Rapid Customization: Conventional models are shipped from stock, with short cycle for customized models to meet urgent supply needs;

• Worry-Free After-Sales Guarantee: Regular return visits to equipment operation status, on-site commissioning and maintenance by engineers, technical training provided, free maintenance for non-human faults within the warranty period;

• Quality Commitment: All series products comply with national electrical standards, pass factory quality inspection, and achieve both durability and safety.

Conclusion

Industrial power supply is no trivial matter. A reliable isolation transformer is not only a "protective umbrella" for equipment, but also a "stabilizer" for production lines. The SG Series Three-Phase Dry-Type Isolation Transformer from Shanghai Yimai Electric proves its quality with best-selling reputation, meets needs with professional selection, and escorts operation with complete services.

Whether you need stock for conventional models or customization for special specifications, please contact the technical team of Shanghai Yimai Electric to obtain an exclusive selection scheme and quotation, making industrial power supply safer, more stable and more efficient!