50kVA 80kVA 100kVA Power Three Phase Transformer EI240 For Industrial Inverters
Price:
US$15-480
MOQ:
1000
Delivery Time:
4-5 Weeks
Brand:
Chipsen
Product Description
High Power Three Phase EI240 Transformer 50kVA 80kVA 100kVA
The Three-Phase EI240 Transformer is an ultra-heavy-duty magnetic component designed for large-scale industrial power distribution and voltage regulation. As one of the largest standard sizes in the EI laminated series, the EI240 is engineered to support massive power requirements, typically ranging from 20kVA to over 100kVA. Operating at 50Hz or 60Hz, this transformer serves as a robust backbone for entire production lines, providing high-reliability voltage step-down, step-up, or total galvanic isolation for critical infrastructure.
Technical Specifications
| Parameter | Typical Value / Spec |
|---|---|
| Core Type | EI240 Laminated Silicon Steel |
| Phase Type | Three-Phase / 3P |
| Cooling Method | Dry Type / Natural Air Cooling (AN) |
| Structure | Open-Frame / Protective Enclosure (IP20/IP54) |
| Power Rating | 20kVA - 150kVA (Customizable) |
| Operating Frequency | 50Hz / 60Hz |
| Primary Voltage | 380V / 400V / 415V / 440V / 480V AC |
| Secondary Voltage | 200V / 208V / 220V / 380V AC |
| Hi-Pot (Isolation) | 3.5KV - 4.5KV AC / 1min |
| Efficiency | 98% - 99.2% |
| Core Material | High Permeability CRGO Silicon Steel |
| Impregnation | Vacuum Pressure Impregnation (VPI) |
| Winding Material | 100% Pure Copper (Electrolytic) |
| Insulation Class | Class F (155°C) / Class H (180°C) |
| Operating Temp | -10°C to +45°C (Full Load) |
| Storage Temp | -25°C to +85°C |
| Compliance | CE, RoHS, ISO9001, VDE |
Product Features
- High-Capacity EI240 Silicon Steel Core: Utilizes premium, high-permeability laminated silicon steel sheets to maximize magnetic flux efficiency while minimizing eddy current and hysteresis losses.
- 100% Electrolytic Copper Windings: Features high-grade pure copper coils, providing superior electrical conductivity and exceptional durability under continuous heavy-load cycles.
- Precision Phase Balancing: Optimized three-phase winding architecture ensures perfect voltage symmetry and minimal phase displacement for sensitive electronics protection.
- Dry-Type Vacuum Pressure Impregnation (VPI): Deep VPI process with high-grade insulating resin solidifies the structure to prevent moisture ingress and mechanical noise.
- Robust Terminal Blocks: Equipped with heavy-duty, high-current busbars or terminal blocks for secure and low-resistance electrical connections.
How does the specific cross-sectional area of the EI240 core impact "Inrush Current" and efficiency during startup of heavy inductive loads?
The EI240 features a very large Effective Cross-Sectional Area (????????), typically around 6400 mm². This massive core volume allows the transformer to handle significantly higher magnetic flux before reaching saturation. During startup of heavy inductive loads, the EI240 can absorb high peak inrush currents without the magnetic core saturating instantly, resulting in smoother voltage ramp-up and preventing nuisance tripping while maintaining peak energy efficiency up to 99% during steady-state operation.
Product Applications
- Heavy Industrial Machinery: Primary power source for large-scale CNC machining centers, plastic injection molding machines, and automated assembly lines.
- Data Centers & Server Farms: Provides critical isolation and voltage stability for high-density server racks and UPS systems requiring 24/7 uptime.
- Renewable Energy Infrastructure: Essential for high-power solar inverters and industrial energy storage systems requiring grid-tie voltage synchronization.
- Hospital & Medical Facilities: Used in power distribution rooms for MRI suites and CT scanners where high-isolation and low-interference power is required.
What measures are taken in the EI240 design to mitigate "Magnetostriction" and ensure low acoustic noise in quiet environments like hospitals?
To minimize magnetostriction (the slight changing of shape of steel laminations under magnetic fields), the EI240 employs precision clamping using high-tensile steel bolts and heavy-duty frame plates to apply uniform pressure across the core. Combined with Vacuum Pressure Impregnation (VPI), the resin fills every micro-gap between laminations, effectively bonding them into a single rigid mass. This reduces physical vibration and dampens acoustic noise to levels well below industry standards, even at full kVA capacity.
Product Advantages
- Exceptional Power Density: Delivers immense power throughput in a standardized, reliable architecture proven over decades of industrial use.
- Superior Thermal Resilience: Large surface area and open-frame dry-type design facilitate excellent heat dissipation, ensuring service life over 20 years.
- Total Galvanic Isolation: Provides high electrical separation between primary grid and sensitive equipment, effectively filtering common-mode noise.
- Global Grid Compatibility: Highly customizable to meet any global voltage standard with flexible tap settings for grid fluctuations.
Company Strengths
Chipsen Electronics Technology Co., Ltd., established in 2000, is a specialized manufacturer of high frequency transformers, low frequency transformers, toroidal inductors, SMD power inductors, super high current inductors, choke coils and switches. As an ISO9001, ISO14001 & IATF16949 audited company, Chipsen commits to producing environmental protection and qualified products certified by UL Class B/Class F/Class H, CQC and RoHS, with 21 patents. Our strong R&D team provides solutions for temperature decreasing, noise cancellation and coupled radiation conductivity.
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Company
Dongguan Chipsen Electronics Technology Co., Ltd.
Location
No. 234, Changhuang Road, Changping Town, 523586, Dongguan, Guangdong, China
Contact Person
Nick Cheng