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Dry Type 50KVA Three Phase Transformer EI480 Enclosed for Industrial Power
Place of Origin:
China
Brand Name:
CHIPSEN
Certification:
UL/cUL Class B/F/H, VDE, CQC
Model Number:
EI480
Minimum Order Quantity:
100
Price:
$980–$1380
Delivery Time:
7-14 work days (Negotiable)
Payment Terms:
T/T
Supply Ability:
1000pcs
Inquiry Now
Get A Quote
Specifications
Highlight Features
50KVA three phase transformer
,EI480 enclosed industrial transformer
,dry type three phase transformer
Manufacturing Date Code:
QXDQ20240311007
Weight:
250 Kg
Frequency Characteristics:
Low And High Frequency, Customized
Tolerance:
±5%
Components:
Silicon Steels, Copper Wire
Input Voltage:
380V3P
Phase Type:
3 Phase
Rated Capacity:
300KVA
Warranty Period:
5 Year
Operating Temperature:
-30-110℃
Primary Voltage:
220/380/440/550V
Standardscompliance:
IEC 60076
Installation:
Floor Mounted / Indoor
Storage Humidity:
95%
Powerrating:
10 KVA
Product Description
Dry Type 50KVA Three Phase Transformer EI480 Enclosed for Industrial Power
Industry Buyer Parameters and Customization
The following values are high-potential buyer inquiry references rather than fixed ratings for every EI480 transformer. The 50KVA 480V to 240V version is a reference configuration. Final voltage, capacity, frequency, vector group, impedance, temperature rise, enclosure and compliance requirements must follow the approved specification.
| Potential Industry | Typical Capacity Inquiry | Common Voltage Requirement | Key Parameters Evaluated | Relevant Customization |
|---|---|---|---|---|
| Industrial automation | 20KVA to 100KVA | 480V to 240V or 208Y 120V | Regulation inrush impedance phase balance and temperature rise | Voltage taps vector group neutral terminals and protection |
| AI servers and data centers | 30KVA to 100KVA | 480V to 208Y 120V or 400V to 230V | Harmonics K factor losses neutral current shielding and monitoring | Harmonic-duty winding shield sensors busbars and cooling |
| Battery energy storage | 20KVA to 100KVA | 400V or 480V to 208V 240V 380V or 400V | PCS harmonics isolation impedance altitude and continuous duty | Vector group taps sensors cooling and cabinet interface |
| Solar inverter and PCS | 20KVA to 100KVA | 380V 400V 415V or 480V conversion | Grounding common-mode noise waveform efficiency and thermal margin | Isolation ratio shield neutral and thermal monitoring |
| EV charging infrastructure | 20KVA to 100KVA | 480V to 240V or 208V | Harmonic current peak demand fault coordination and temperature rise | Copper winding monitoring terminals and ventilation |
| UPS and emergency power | 15KVA to 100KVA | 480V to 208Y 120V 240V or one-to-one isolation | Inrush regulation no-load loss fault level and generator compatibility | Low-inrush design taps shield vector group and neutral |
| HVAC and VFD systems | 15KVA to 75KVA | 480V to 208V or 240V | Nonlinear current motor duty harmonics vibration and thermal performance | Harmonic-duty winding sensors reinforced terminals and enclosure |
| CNC and robotic systems | 10KVA to 50KVA | 480V to 220V 230V or 240V | Starting current machine grounding regulation and installation space | Multiple outputs taps shield terminals and cabinet dimensions |
| Commercial buildings | 15KVA to 100KVA | 480V Delta to 208Y 120V | Neutral loading efficiency enclosure noise and code documentation | Delta Wye connection neutral protection and project labeling |
| Telecom infrastructure | 10KVA to 50KVA | 400V or 480V to 208V 230V or 240V | Standby loss surge noise shielding and environmental conditions | Electrostatic shield sensors low-loss design and compact cabinet |
Quotation parameters should include rated kVA, input and output line voltage, voltage tolerance, phase sequence, vector group, neutral, taps, frequency, power factor, harmonic spectrum, continuous and peak load, impedance, regulation, loss limits, inrush, ambient temperature, altitude, cooling, temperature rise, insulation, dielectric requirements, terminals, busbars, earthing, enclosure protection, dimensions, sensors, applicable standards, inspection plan and annual demand.
Product Description
The EI480 is a large laminated-core three-phase transformer platform developed for industrial voltage conversion and galvanic isolation. The reference configuration is a 50KVA dry-type transformer converting 480V three-phase input to 240V three-phase output.
Capacity, voltage ratio, frequency, vector group, neutral arrangement, taps, impedance, winding material, cooling and enclosure can be developed around the customer's actual electrical system.
The image shows a floor-mounted metal cabinet with a lockable access door, ventilation louvers, raised mounting feet and an external product label. This construction supports safer equipment integration by separating the transformer and energized terminals from routine operator access.
The internal winding arrangement, protective devices, terminal layout, enclosure protection rating and dimensions cannot be confirmed from the image and must follow the approved drawing.
A true isolation version uses electrically separate primary and secondary windings. This can provide galvanic separation when neutral bonding, earthing, shielding and protective devices are correctly engineered. Isolation does not automatically regulate unstable input voltage or eliminate every electrical disturbance.
Transformer Sizing Considerations
The transformer should not be selected from equipment nameplate power alone. Correct sizing must consider:
- Continuous RMS load
- Short-duration peak demand
- Motor or rectifier inrush
- Power factor
- Phase unbalance
- Harmonic current
- Neutral current
- Ambient temperature
- Altitude
- Ventilation
- Future expansion
- Applicable derating requirements
For UPS, VFD, EV charging, PCS and server loads, the current waveform or harmonic spectrum should be supplied whenever possible.
Product Construction
| Construction Item | EI480 Reference and Customization Direction |
|---|---|
| Magnetic Platform | Large EI laminated silicon-steel core for 50Hz or 60Hz three-phase service |
| Reference Capacity | 50KVA with other capacities subject to magnetic and thermal evaluation |
| Primary Winding | Three-phase copper winding configured for the approved input voltage and taps |
| Secondary Winding | Electrically separate three-phase copper winding for the required output |
| Vector Group | Delta Wye Delta Delta Wye Wye or another approved connection |
| Insulation System | Barriers tapes sleeving varnish margins and conductor insulation selected for the application |
| Impregnation | Varnish impregnation or vacuum-assisted treatment according to mechanical and environmental requirements |
| Electrostatic Shield | Optional primary-to-secondary shield with defined grounding terminal |
| Thermal Monitoring | Optional thermostat PT100 RTD thermistor alarm or trip sensor |
| Cooling | Natural-air dry-type cooling with forced-air assistance available after thermal review |
| Terminations | Terminal blocks studs cable lugs or busbars sized for rated current and service access |
| Earthing | Dedicated protective-earth connection for the metal enclosure |
| Enclosure | Ventilated powder-coated steel cabinet with dimensions and protection rating confirmed by drawing |
| Installation | Floor-mount construction with optional lifting anchoring and anti-vibration provisions |
| Protection | Optional fuses breakers surge devices meters fans alarms and interlocks |
| Identification | Rating plate wiring diagram terminal markings warnings serial number and batch code |
Final construction must be controlled through the approved electrical specification, mechanical drawing, wiring diagram, bill of materials, insulation system and test plan.
Product Characteristics
Three Phase Voltage Conversion: The EI480 can be designed for step-down, step-up or one-to-one three-phase isolation. Common inquiries include 480V to 240V, 480V to 208Y 120V and 400V to 230V. Line voltage, phase voltage, neutral arrangement and phase displacement must be defined before winding design begins.
Dry Type Enclosed Design: The dry-type construction does not require insulating oil. A ventilated steel cabinet provides mechanical protection and helps prevent unintended contact with terminals and windings. The enclosure must not be described as outdoor, waterproof, dustproof or NEMA rated until the exact protection level has been verified.
Galvanic Isolation: Separate primary and secondary windings can provide galvanic isolation between the input and output circuits. Performance depends on the approved neutral, earth, shield and protective-device arrangement. An electrostatic shield can be incorporated when sensitive equipment requires additional control of conducted common-mode interference.
Load Specific Electrical Design: Core flux density, conductor section, winding geometry, impedance and cooling can be developed around the actual load. Motors, UPS rectifiers, VFDs, charging systems, server power supplies and PCS equipment impose different harmonic, inrush, crest-factor and overload requirements.
Controlled Regulation and Impedance: Voltage regulation and impedance affect output stability, starting performance, fault current and protective coordination. The lowest possible impedance is not automatically the correct target. Required values should be agreed between the equipment engineer, facility designer and transformer manufacturer.
Thermal Monitoring: Temperature sensors, alarm contacts, trip contacts and forced-air fans can be integrated when required. Temperature-rise performance must be validated under the specified load, ambient temperature, altitude, enclosure and ventilation conditions.
Mechanical Integration: Cabinet dimensions, cable entry, terminal orientation, mounting holes, lifting points, service access, ventilation clearance, coating and labeling can be adapted to the installation.
Applications
- Industrial automation power distribution
- AI server and data center electrical rooms
- Battery energy storage systems
- Solar inverter and PCS equipment
- EV charging stations
- UPS and emergency-power systems
- HVAC and variable-frequency drives
- CNC machine tools
- Robotic production systems
- Imported industrial equipment requiring voltage conversion
- Commercial building power distribution
- Telecom and edge-computing infrastructure
- Water-treatment and process equipment
- Industrial testing systems
- Three-phase galvanic isolation systems
Application suitability must be confirmed from the complete electrical system rather than from the EI480 designation or cabinet appearance alone.
Quality Control
Engineering Review: FAE, NPI and DFM review can evaluate voltage, load profile, capacity, vector group, neutral, taps, impedance, inrush, regulation, losses, insulation coordination, temperature rise, enclosure, terminals, ventilation, installation and test requirements.
Incoming Material Control: Inspection may cover silicon-steel laminations, copper conductors, insulation materials, terminal hardware, sensors, varnish, enclosure steel, coating, fans, protective devices and labels. Certification-controlled materials require separate document and change control.
Winding and Assembly Control: Production controls can include:
- Turns count and winding direction
- Conductor preparation
- Phase identification
- Insulation placement
- Coil dimensions
- Core stacking and clamping
- Impregnation
- Terminal torque
- Busbar spacing
- Sensor placement
- Enclosure bonding
- Cable routing
- Ventilation
- Labeling and workmanship
Electrical Testing: The approved test plan may include:
- Winding resistance
- Phase balance
- Turns ratio and polarity
- Phase relationship
- Vector-group verification
- No-load voltage and current
- No-load loss
- Full-load voltage
- Voltage regulation
- Load loss
- Impedance voltage
- Insulation resistance
- Dielectric testing
- Protective-earth continuity
- Sensor and fan operation
- Meter alarm and interlock verification
Test conditions, limits, sampling rate and report format must be agreed before production.
Thermal and Reliability Validation: First-article validation can cover temperature rise, hotspot location, overload duty, inrush, acoustic performance, vibration, terminal heating, enclosure ventilation, dielectric performance, coating, fastener retention, sensors and packaging.
MES Traceability: MES-supported records can connect material lots, winding records, process inspections, test data, batch identification, nonconformance handling and engineering changes.
Company Profile
Chipsen Electronics Technology develops and manufactures custom magnetic components for industrial power conversion, automation, energy systems, data infrastructure and transportation electrification.
The company has:
- 452 employees
- 18 technical specialists
- 12 automated production lines
- Annual capacity of approximately 60 million magnetic components
- FAE NPI and DFM support
- MES production traceability
- Automated electrical testing
- Reliability validation
- Winding-process control
- Drawing-based customization
- Sample-based replacement development
- Second-source support
- Patented technologies
The product portfolio includes high-frequency transformers, low-frequency transformers, three-phase transformers, planar transformers, power inductors, high-current inductors, toroidal inductors, common-mode chokes, EMI magnetics, wireless charging coils and custom magnetic assemblies.
Chipsen is expanding its international manufacturing footprint. Its Thailand factory is currently under construction. It must continue to be described as under development until commissioning, qualification and the applicable production scope are completed.
Why Choose Chipsen
Application Specific Engineering: The EI480 can be developed around motor inrush, rectifier harmonics, phase unbalance, grounding, impedance, temperature rise, cabinet integration and protection coordination.
Verifiable Project Documentation: Approved drawings, wiring diagrams, controlled specifications, material records, test plans, first-article results and traceability information give engineering and procurement teams a clearer basis for qualification.
FAE NPI and DFM Support: FAE support translates system requirements into transformer specifications. NPI and DFM review identify insulation, thermal, terminal, manufacturability and testing risks before production release.
Automated Testing and MES: Automated electrical testing supports repeatable routine inspection, while MES records support production and material traceability. Testing coverage can be aligned with the customer's supplier-quality plan.
Drawing and Sample Based Development: Chipsen can develop from an approved drawing, an existing sample or application requirements. Sample-based replacement still requires the wiring diagram, load profile, safety requirements and critical acceptance limits.
Scalable Production and Supply Support: Twelve automated lines and approximately 60 million components of annual capacity support broader magnetic-component programs. The Thailand factory under construction is intended to strengthen future supply-chain flexibility after qualification.
Controlled Commercial Commitments: The supplied image advertises customized voltage and kVA, seven-day delivery and a five-year warranty. These terms must remain subject to the final technical review, materials, testing scope, order quantity and written agreement.
Frequently Asked Questions
Is every EI480 transformer fixed at 50KVA and 480V to 240V?
No. This is the reference configuration supported by existing Chipsen product information. Capacity, voltage, frequency, vector group, neutral, taps and impedance can be customized, with final ratings confirmed through the approved specification.
What information is required to select the correct EI480?
Provide input and output voltage, frequency, kVA, continuous and peak load, power factor, phase unbalance, harmonic spectrum, inrush, vector group, neutral, grounding, impedance, ambient temperature, altitude, enclosure, standards, dimensions and required tests.
Can EI480 be used with UPS VFD EV charging solar PCS or data center loads?
Yes, it can be engineered for these applications, but each load produces different harmonics, inrush, grounding, neutral-current and thermal conditions. The system diagram and actual load profile must be reviewed before approval.
Is every EI480 configuration UL certified?
No. Existing images and company materials show UL-related markings, but these do not prove that every customized capacity, voltage and construction is covered. The applicable certification file, exact model scope, controlled materials and conditions of acceptability must be verified before publication or ordering.
The EI480 model and cabinet appearance do not independently establish a fixed rating, efficiency, temperature rise, protection level or certification. Final production must follow the approved specification, drawing, wiring diagram, material system, test plan and first-article validation.
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