Heavy-Duty
12V/15V 5000A-6000A 75kW Water-Cooled DC Rectifier
- Input Topology: 3-Phase 380V/480V AC
- Cooling Method: Deionized Water / Closed Circuit
- Operating Mode: Digital CV / CC Display
13+ Years
Precision R&D & OEM Expertise
15,000A
Max Continuous Output Current
100kV
High Voltage Range Capability
ISO 9001
TÜV Rheinland On-Site Verified
Engineered Portfolio
Industrial-Grade Three Phase DC Power Supply Solutions
From heavy chemical immersion tanks to automated EV drive testing, explore our custom three-phase DC architectures engineered to minimize energy overhead, eliminate harmonics, and provide continuous 24/7 reliability.
High Power
300kW 20V 15,000A Ultra-High Current DC Rectifier
- Current Rating: Up to 15,000A Continuous
- Efficiency: ≥92% (Full Load IGBT)
- Application: Industrial Chlor-Alkali / Copper Refining
Testing & EV
800V/400V 50A 20kW Programmable High Voltage DC Unit
- Voltage Dynamic: 0 - 800V Adjustable
- Interface: RS485 / Modbus / 0-10V Analog
- Compliance: CE, EMC, LVD Directive
Automated Descaling
48V 625A 30kW Polarity Reversing DC Power System
- Feature: Automated Fast Polarity Inversion
- Controller: Programmable Cycle Interval Timer
- Use: Electrochemical Descaling / Water Cleanup
Lab & Capacitor
80kW 3200V Precision High-Voltage Industrial Source
- Output Range: 1000V - 3200V / High Slew Rate
- Protection: Arcing, Short-Circuit, Overvoltage
- Sector: Pulsed Power / Dielectric Testing
Aviation GSE
Portable 28.5V Aircraft Ground Power Unit (GPU)
- Current Delivery: 100A - 600A Engine Start Peaks
- Construction: Outdoor Weatherproof Mobile Chassis
- Application: Helicopter & Executive Jet Maintenance
Solid State
40kVA-500kVA Solid-State Static Frequency Converter
- Conversion Mode: 50Hz/60Hz to 400Hz Solid State
- Harmonic Distortion: THD < 2.5% Linear Loads
- Domain: Military Avionics & Commercial Hangars
Anodic Line
Titanium Alloy Hard Anodizing DC Power Supply
- Input Power: 3-Phase 380V AC ±15%
- Dynamic Control: Multi-Stage Ramp Voltage Setting
- Cooling Design: Anti-Corrosive Air Duct Channeling
Engineering Whitepaper: Three-Phase Rectification & Topologies in Heavy Industry
Modern industrial plants operating at multi-megawatt or heavy-current levels require constant, ripple-controlled direct current (DC) derived from utility three-phase alternating current (AC). Selecting the proper custom OEM power supply architecture dictates not only operational uptime and bath chemistry stabilization in electrochemical environments, but also total factory power factor and electrical system lifespan.
1. Topology Comparison: High-Frequency Switch-Mode (IGBT) vs. Traditional Silicon-Controlled Rectifiers (SCR)
For decades, conventional 6-pulse and 12-pulse SCR (thyristor) systems dominated high-power plating and electrolysis plants. However, the fundamental physical shift toward insulated-gate bipolar transistor (IGBT) high-frequency switch-mode power supply (SMPS) topologies has transformed conversion efficiency. By rectifying three-phase AC directly into an intermediate high-voltage DC link and converting through high-frequency transformers (ranging from 15 kHz to 40 kHz), transformer physical volume is decreased by up to 70% while improving response dynamics from hundreds of milliseconds to microsecond levels.
| Technical Characteristic | Traditional 12-Pulse SCR Rectifier | Fenvix High-Frequency IGBT Topology | Procurement Impact |
|---|---|---|---|
| Overall Conversion Efficiency | 75% – 82% at fluctuating load | 90% – 94% constant efficiency | Up to 15% net reduction on electrical utility bills |
| Output Ripple Factor | ≥ 5% without bulky inductor chokes | ≤ 1% to 2% intrinsic high-freq ripple | Eliminates pinholes; denser electroplate deposition |
| Grid Power Factor (Φ) | 0.65 – 0.80 (Degrades at low output) | ≥ 0.94 across entire operating range | Avoids utility low-power-factor penalties |
| Weight & Footprint | Heavy, bulky iron core transformers | Modular, compact nanocrystalline units | Reduced factory floor footprint and lower shipping costs |
2. Thermal Optimization: Closed-Loop Water-Cooling vs. Directed Forced-Air
High-power switchboards generating upwards of 10,000A release substantial thermal joule losses inside cabinets. Air-cooled rectifiers draw ambient air across internal heatsinks. In corrosive atmospheres containing acid vapors (sulfuric, chromic, or hydrochloric acid baths), air cooling introduces airborne moisture that degrades copper traces and gate-drive boards. Fenvix custom OEM manufacturing implements closed-loop deionized water cooling with nickel-plated solid copper busbars and isolated O-ring sealed heatsinks. This isolates electrical controls completely from harsh environmental vapors, elevating expected field operating lifespan to over a decade in aggressive plating facilities.
Procurement & Technology Horizon
Future Procurement Trends in Industrial DC Power Supplies
As automated smart manufacturing and decarbonization targets evolve globally, power conversion equipment must transition into intelligent, flexible energy assets.
Wide Bandgap Semiconductor Integration (SiC & GaN)
Transitioning from pure silicon IGBT modules to Silicon Carbide (SiC) MOSFET arrays enables switching frequencies exceeding 100 kHz. This yields near-zero switching losses, extreme heat tolerance, and reduces total cabinet footprints by an additional 35%.
Modbus TCP/IP & Industry 4.0 Telemetry
Sourcing engineers are requiring digital interfaces over manual analog knobs. Built-in industrial Ethernet, Profinet, and isolated RS485 connections allow real-time monitoring of harmonic distortions, component thermal degradation, and amp-minute chemical balance from centralized control centers.
N+1 Modular Redundancy & Hot-Swappable Architectures
Continuous galvanizing lines and high-temperature electrolysis cannot endure unplanned downtime. Modern tenders mandate N+1 parallel-connected sub-modules where individual power blocks can be serviced or replaced without shutting down the main production line.
Total Cost of Ownership (TCO) Driven Procurement Decisions
International procurement specialists are moving past lowest-bidder pricing. A power supply accounts for over 85% of its multi-year cost in consumed electricity. Investing in 93%+ efficiency topologies repays the original capital purchase cost within the initial 18 to 24 months of full continuous operation.
Guangdong Manufacturing Strength
Vertical OEM/ODM Integration Under Rigorous ISO 9001 Controls
Operating in Guangdong, China since 2013, Guangdong Fenvix Technology Co., Ltd. eliminates third-party supply-chain markups and quality variances by managing all sheet-metal forming, copper busbar engineering, software design, and final oscilloscope load testing in-house.
- ✓ Complete Structural Autonomy: In-house plate shearing, punching, milling, drilling, and tapping ensure customized chassis matching customer space constraints.
- ✓ Zero MOQ Barrier: Direct engineering consultation whether you require a single pilot prototype for laboratory validation or full-scale fleet rollouts.
- ✓ Verified Electrical Safety: TÜV Rheinland on-site audit verified; models conform to CE, EMC, RoHS, and Low Voltage Directives (LVD).
- ✓ Full Spectrum Burn-In Testing: 100% full-current resistive and inductive load bank validation prior to ocean or air crating.
Procurement Knowledge Base
Frequently Asked Questions for Sourcing Three-Phase DC Units
Clear answers to electrical, logistical, and technical parameters to simplify your vendor qualification process.
What technical data is required to obtain an accurate custom OEM quote?
To provide a fully verified electrical quote and CAD layout, our engineers require: (1) Primary AC Input parameters (e.g., 380V, 415V, 480V three-phase; 50Hz or 60Hz); (2) Maximum continuous DC output voltage and output current; (3) Preferred control regulation (Constant Voltage CV, Constant Current CC, or automatic cross-over); (4) Maximum acceptable peak-to-peak ripple percentage; (5) Cooling media preference (forced air vs. closed-loop water-cooled); (6) Communications protocol (RS485 Modbus, CANopen, 0-10V analog); and (7) Operating environment specifics (such as corrosive ambient vapors, high ambient temperature, or altitude).
Does Fenvix enforce a Minimum Order Quantity (MOQ)?
No. Fenvix maintains an open-architecture manufacturing schedule with a strict 1-unit MOQ. We support R&D engineering divisions, pilot plant runs, and university labs requiring single custom configurations, as well as high-volume batch runs for established OEM machine builders.
When is water cooling technically necessary over forced air?
Water cooling is recommended when output current exceeds 3,000A to 5,000A, or where equipment operates continuously in environments containing corrosive plating fumes (acidic aerosols, zinc mist), high humidity, or enclosed ambient temperatures surpassing 40°C. Water cooling isolates the power electronics inside sealed IP54+ cabinets, eliminating external air intake and preventing premature board failure. Forced air cooling is suitable for dry testing environments, cleanrooms, and moderate power levels up to 3,000A.
Which international quality and trade certifications are supported?
Fenvix operates an active ISO 9001 quality management system. Product series can be configured and stamped with CE, RoHS, Low Voltage Directive (LVD 2014/35/EU), and Electromagnetic Compatibility Directive (EMC 2014/30/EU). Our manufacturing facility is verified on-site by TÜV Rheinland, with comprehensive audit documentation available for vendor compliance files.
What are standard lead times, payment methods, and Incoterms?
Typical lead times for standard customized three-phase rectifiers range from 15 to 25 business days depending on busbar and chassis fabrication requirements. Accepted Incoterms include EXW, FOB, CFR, CIF, FCA, CPT, and full DDP (Delivered Duty Paid) to North American and European destinations. Payment options include Wire Transfer (T/T), Irrevocable Letters of Credit (L/C), Credit Card, and major convertible currencies including USD, EUR, GBP, JPY, and CNY.
How does Fenvix support overseas commissioning and post-sales maintenance?
Every custom power supply ships with comprehensive terminal connection schematics, factory burn-in test certificates, and English operation manuals. Remote commissioning support via high-definition video conferencing and engineering direct lines is provided free of charge. For high-capacity multi-megawatt systems, on-site commissioning and installation engineers can be deployed globally.
Accelerate Your Project With an Engineered OEM Power Supply
Consult with our senior Guangdong engineering team today. We review your three-phase voltage requirements, chemical duty cycles, and busbar interfaces to provide an executable proposal within 24 hours.
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