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{"title":"Enclosed Three Phase Power Transformer 380V 480V For Factory Equipment","imgUrl":"https:\/\/img.chinax.com\/nimg\/0f\/6f\/9318427652be778334abf781304c-200x200-1\/enclosed_three_phase_power_transformer_380v_480v_for_factory_equipment.jpg","attrs":{"Model Number":"EI119 EI480","Phases":"3","Minimum Order Quantity":"100 PCS","Delivery Time":"15-30 working days"}}
{"title":"Custom 380V 480V 50Hz 60Hz Enclosed Three Phase Transformer For Factory","imgUrl":"https:\/\/img.chinax.com\/nimg\/93\/ba\/515307f241351b512bba8c618bfe-200x200-1\/custom_380v_480v_50hz_60hz_enclosed_three_phase_transformer_for_factory_equipment.jpg","attrs":{"Phases":"3","Certification":"UL\/ISO9001\/ISO14001\/RoHS\/Reach","Rated voltage":"220 V \/ 380 V \/ 400 V \/ 480 V \/ 690 V AC, other classes on request","Model Number":"EI450"}}
{"title":"High Power Low Noise E250 Three Phase Transformer Stable Efficient For Machinery","imgUrl":"https:\/\/img.chinax.com\/nimg\/55\/b0\/8feeb61d430ee23f7b0f34ce5de0-200x200-1\/high_power_low_noise_e250_three_phase_transformer_stable_efficient_for_machinery.jpg","attrs":{"Certification":"UL\/cUL Class B\/F\/H, VDE, CQC","Efficiency":"Up to 98%","Model Number":"E250","Output Voltage":"24-600KV and can be Customized"}}
{"title":"High Efficiency Input Line Harmonic Filter Three Phase Reactor For VFD Inverter","imgUrl":"https:\/\/img.chinax.com\/nimg\/8c\/7c\/266b43cdb4a15407001c69527221-200x200-1\/high_efficiency_input_line_harmonic_filter_three_phase_reactor_for_vfd_inverter_system.jpg","attrs":{"Certification":"UL\/cUL Class B\/F\/H, VDE, CQC","Current Superposition \/ Saturation":"Inductance Drop < 10% @ 1.5x Rated Current","Model Number":"EI200","Compliance & Safety Certificates":"UL\/cUL Listed, CE, RoHS, REACH, IATF16949"}}
{"title":"Robust High Power EI450 Three Phase Transformer Stable Efficient Power Systems","imgUrl":"https:\/\/img.chinax.com\/nimg\/59\/b8\/f0b4d413fa02ccbd152b542245b5-200x200-1\/robust_high_power_ei450_three_phase_transformer_stable_efficient_power_systems.jpg","attrs":{"Certification":"UL\/cUL Class B\/F\/H, VDE, CQC","Output Current":"300A","Model Number":"EI450","Winding material":"Copper wire"}}
{"title":"Large Custom EI240 Low Frequency Transformer Stable Durable Industrial Controls","imgUrl":"https:\/\/img.chinax.com\/nimg\/6b\/be\/003271b5c46c1fc11353da79730e-200x200-1\/large_custom_ei240_low_frequency_transformer_stable_durable_industrial_controls.jpg","attrs":{"Certification":"UL\/cUL Class B\/F\/H, VDE, CQC","Windings":"Multi-winding Transformer","Model Number":"EI240","Bobbin Material":"Phenolic"}}
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 (
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Year Established:
2007
Total Annual:
28820000-29820000
Employee Number:
400~450
Ecer Certification：
Verified Supplier
Chipsen Electronics - Supplier to Fortune Global 500 Companies
Magnetic Components Engineered for Performance & Reliability
Founded in 2007, Dongguan Chipsen Electronics Technology Co., Ltd. is a professional manufacturer specializing in magnetic components and micro switches.
...
Chipsen Electronics - Supplier to Fortune Global 500 Companies
Magnetic Components Engineered for Performance & Reliability
Founded in 2007, Dongguan Chipsen Electronics Technology Co., Ltd. is a professional manufacturer specializing in magnetic components and micro switches.
...
