Traction Test
800V 50A 20kW High-Voltage Motor Dyno Test Supply
- Voltage Range: 0 – 800 VDC
- Current Range: 0 – 50 A Continuous
- Response Time: < 5ms Dynamic Step
- Cooling Mode: Forced Air-Cooled
Engineering Catalog
Specialized DC Power Supply Solutions for Motor Testing & Heavy Electrodynamics
From high-frequency traction motor characterization to massive low-voltage electrolysis, review our core industrial DC platforms engineered for tough mechanical and electrical regimes.
High Power
90kW–120kW 2000V Programmable DC Test Unit
- Voltage Output: 0 – 2,000 VDC Step-less
- Current Rating: 0 – 60 A Full Load
- Topology: Phase-Shift Full-Bridge IGBT
- Protection: Active Dynamic Braking Absorber
Heavy Industry
160kW 2500A Heavy-Duty High-Current DC Source
- Current Capacity: Up to 2,500 A DC
- Ripple Factor: ≤ 1% RMS Full Bandwidth
- Control Mode: Continuous CC / CV Switching
- Bus Interface: RS485 / Modbus-RTU Standard
Water Cooled
12V–15V 6000A 75kW Water-Cooled DC Rectifier
- Current Range: 0 – 6,000 A Continuous
- Cooling Mechanism: Deionized Water Cooling Loop
- Enclosure: IP54 Sealed Cabinet
- Efficiency: ≥ 90% at Rated Load
Capacitor Pulse
80kW 3200V High Precision HV DC Source
- Voltage Limits: 1,000V / 2,000V / 3,200V
- Accuracy: ±0.2% F.S. Digital Regulation
- Application: High-Pot Stator Stress & Charging
- Certification: CE, LVD, EMC Tested
400Hz Aviation
40kVA–500kVA Solid-State Frequency Converter
- Frequency Output: 400Hz / 50Hz / 60Hz Selectable
- Voltage Level: 115VAC Phase / 200VAC Line
- Total Harmonic Distortion: THD < 2.5% Linear Load
- Application: Avionics, High-Speed Turbines
High Megawatt
300kW 20V 15,000A Water-Cooled DC Rectifier
- Output Capacity: 20 VDC / 15,000 A DC
- Thermal Topology: Dual Isolated Water Heat Sink
- Duty Profile: 100% 24/7 Continuous Duty
- Manufacturing Standard: ISO 9001 Process Managed
R&D Precision
1.5kW–5kW Programmable DC Switching Supply
- Voltage Flexibility: 0 – 100V / 300V / 600V Config
- Programmability: Voltage/Current Slopes & Curves
- Digital Interface: RS232, RS485, 0–10V Analog
- Form Factor: Benchtop or 19-inch Rackmount
Engineering DC Power Architectures for Severe Inductive Loads in Dnipro
The industrial ecosystem of Dnipro (formerly Dnipropetrovsk) and its surrounding metallurgical, mining, and heavy engineering hubs across Kryvyi Rih and Kamianske have long anchored Central Ukraine's manufacturing capability. From the remanufacture of massive DC traction motors for mining locomotives to the qualification of high-torque industrial servomotors and aerospace actuation subsystems, motor testing in this industrial cluster imposes rigorous electrical demands on direct current (DC) power sources.
Unlike resistive heating loads or steady-state galvanic electrolysis baths, testing rotating electrical machinery involves extreme electromagnetic dynamics. When an electric motor undergoes locked-rotor testing, dynamic acceleration under variable inertia, or sudden regenerative braking, the DC power source encounters severe voltage transients, inductive kicks, and continuous harmonic reflections. A standard catalogue power supply frequently triggers over-voltage faults or suffers catastrophic inverter bridge failure when subject to the counter-electromotive force (CEMF) generated by collapsing magnetic fields within motor stators and armatures.
"In dynamic electric motor test benches, the DC power supply must serve not merely as an energy dispenser, but as an active electrodynamic sink capable of clamping voltage spikes during rapid deceleration and maintaining microsecond-level voltage regulation without harmonic resonance."
Guangdong Fenvix Technology Co., Ltd. specifically configures heavy-duty IGBT switching platforms to resolve these challenges. Incorporating fast-acting snubber circuitry, dynamic bi-directional energy dissipation modules, and programmable slew-rate algorithms, our motor testing DC sources protect sensitive instrumentation while supplying steady current envelopes up to 15,000 Amperes or high-voltage test fields up to 3,200 Volts.
Local Industrial Integration
Applied Heavy-Duty DC Test Scenarios Across Dnipro's Manufacturing Hub
How specialized high-power DC sources empower metallurgy, mining maintenance, railway remanufacture, and aerospace engineering in the Dnipropetrovsk industrial axis.
Mining Locomotives & Haulage
In the Kryvyi Rih iron ore extraction basin adjacent to Dnipro, heavy electric locomotives require extensive testing of their high-power traction motors (such as TED series). Our high-current DC sources (up to 4,000A) provide constant current saturation tests, commutation verification, and full-load temperature rise validation under harsh factory-floor environmental conditions.
Metallurgical Mill Rolling Drives
Dnipro's rolling mills and steelworks depend on multi-megawatt motor drives. During overhaul and rewinding, motors require strict locked-rotor torque verification and dielectric breakdown testing. Our programmable 800V–2000V DC switching sources enable automated ramp profiles that detect inter-turn insulation micro-faults before re-commissioning on the live mill stand.
Aerospace & Defense Actuators
Anchored by Dnipro’s prestigious aerospace engineering legacy (including Yuzhnoye and Yuzhmash design legacies), precision rocket gimballing actuators and high-frequency turbopump DC starter motors require clean, ripple-free DC power. Fenvix supplies ultra-low-noise 28.5V DC units and 400Hz static ground converters that simulate rigorous flight power networks.
Engineering Whitepaper Matrix
DC Power Specification Matrix for Industrial Motor Test Benches
Cross-referencing motor topology against critical power supply design parameters, ripple constraints, and cooling methodologies.
| Motor Type / Target Test | Voltage & Current Demands | Required Control Architecture | Critical Protection Scheme | Recommended Cooling Topology |
|---|---|---|---|---|
| Railway Traction DC Motors (Series/Compound Wound) | 600V – 1,500 VDC 500A – 3,000 A Continuous |
Dual Constant Voltage (CV) and Constant Current (CC) with Programmable Ramp | Reverse-EMF Clamping Diode Array & Crowbar Resistor Absorber | Forced Air or Closed-Loop Deionized Water Cooling |
| Mining Excavator & Hoist Motors (High Torque) | 400V – 800 VDC 1,000A – 5,000 A Inrush |
Fast Transient Response (<5ms) with Low Voltage Ripple (≤1% RMS) | Over-Current Instantaneous Latch, Short-Circuit Thermal De-rating | Water-Cooled Baseplate for High Ambient Dust Resistance |
| High-Speed Permanent Magnet Sync Motors (PMSM Inverter Dyno) | 400V – 800 VDC Bus 50A – 400 A Dynamic |
Programmable Slew Rate, RS485/CAN/Ethernet Bus for Automated SCADA Dyno Loops | Regenerative Power Dissipation Unit (Brake Chopper Interface) | Industrial Forced Air or Chilled Water Heat Exchanger |
| Aerospace 28.5V DC Actuators & Starter Dynos | 28.5 VDC Nominal (18–36V Variable) 100A – 2,000 A Peak Start |
Ultra-Low Ripple (≤0.5%), MIL-STD-704/ISO 6858 Power Quality Compliance | Over-Voltage Suppression Spike Clamping (<50 microseconds) | Compact Mobile Cabinet with Heavy-Duty Castors |
| Motor Stator Coil Aging & Dielectric Heating | 1,000V – 3,200 VDC 10A – 60 A Precision |
Micro-ampere Current Measurement Resolution, Multi-Segment Timer Curves | Arc Detection, Spark Quenching, Galvanic Isolation (>3.5kV AC) | Internal Air Duct with Conformal Coated Electronics |
Localized Trends in Dnipro: Modernization, Energy Resilience, and Rebuilding
Industrial procurement in Dnipro and Eastern Ukraine has experienced a profound shift over the past several years. Facility directors, plant chief electrical engineers, and test bench integrators are actively navigating three distinct macroeconomic and infrastructural drivers:
1. Transition from Legacy Thyristor (SCR) to High-Frequency IGBT Topology: Extensive inventories of massive 1980s-era Soviet thyristor rectifiers are being systematically retired across Dnipro's repair plants. These legacy units suffer from notorious 6-pulse or 12-pulse line harmonics, atrocious power factors (<0.75 under partial loads), and vast footprints. Modern purchasing focuses squarely on modular IGBT switching rectifiers that operate above 20 kHz switching frequencies, maintaining power factors above 0.95 and reducing workshop electrical consumption by up to 28%.
2. Energy Grid Fluctuations and Voltage Sags: Given ongoing strains on the Ukrainian regional electrical transmission networks, industrial facilities frequently experience input voltage sags (±15% to ±20%) and harmonic distortions on the primary 380V 3-phase grid. Procuring DC sources with ultra-wide AC input tolerance (380VAC ±15% or customized 400V–440V ranges) and robust internal intermediate DC-bus capacitance is essential to avoid nuisance shutdowns during critical motor test runs.
3. Resilience Against Ambient Particulate Matter: Dnipro’s heavy metallurgy and iron-ore logistics environments generate significant ambient iron dust, graphite particles, and moisture. Traditional open-frame air-cooled power units draw conductive metallic dust directly across exposed high-voltage PCB traces, resulting in catastrophic short-circuits. Consequently, procurement officers increasingly mandate water-cooled DC power supplies or segregated cooling ducts where internal electronics reside in IP54-sealed enclosures, dissipating heat via external stainless-steel heat exchangers.
Manufacturing Authority
Guangdong Fenvix Technology Co., Ltd. — Built for Tough Duties
Direct from our 3,000m² factory floor in Guangdong, China. Certified ISO 9001 engineering with verified export reliability.
Complete In-House Fabrication
We do not outsource sheet metal or busbar fabrication. Our Guangzhou manufacturing base operates dedicated shearing, punching, CNC milling, drilling, and tapping machines. We engineer high-purity electrolytic copper busbars designed for massive current densities with minimal voltage drop.
Full Load Burn-In & Oscillo Testing
Before any power system leaves our loading bay for export to Eastern Europe, it completes continuous full-load temperature rise tests on calibrated dummy loads. Comprehensive oscilloscope ripple validation, dielectric hi-pot testing, and emergency shutdown sequence verification are documented in an inspection report.
Flexible OEM/ODM & Zero MOQ
Whether Dnipro test bench builders require a single custom 120kW prototype with specialized CANopen protocol or a batch of twenty 28.5V mobile ground units, Fenvix maintains an absolute Zero MOQ (Minimum Order Quantity: 1 Unit) policy with bespoke engineering support.
Verified Manufacturing: From Raw Sheet Metal to Oscilloscope Calibration
Take an inside look at Guangdong Fenvix Technology's workshops, tooling machinery, and precision quality testing protocols.
Procurement FAQ
Frequently Asked Questions by Industrial Buyers & Engineers in Dnipro
Practical answers addressing logistics to Ukraine, power grid compatibility, regenerative absorption, and technical compliance.
How can our motor test bench handle regenerative back-EMF energy without tripping the Fenvix DC source?
Electric motors undergoing abrupt deceleration or dynamic braking act as generators, pumping current back into the power source. Because standard AC-DC switching power supplies are unidirectional, this reverse energy elevates the intermediate DC link voltage, risking catastrophic capacitor rupture or IGBT breakdown. For Dnipro motor dyno applications, Fenvix equips our power supplies with an internal or external Dynamic Brake Chopper and Pulsed Power Dump Resistor Bank. The circuitry senses DC bus threshold elevations within microseconds, actively shunting regenerated energy into high-temperature ceramic dissipation resistors while maintaining smooth voltage clamping.
What are the current logistics and shipping routes from your Guangdong factory to Dnipro?
We provide comprehensive export handling under Incoterms including FOB Guangzhou/Shenzhen, CIF European seaports, or DAP/DDP delivery directly to industrial receiver hubs in Dnipro. Shipments typically route via maritime transport to major European gateways (such as Constanța, Romania; Gdańsk or Gdynia, Poland) and transit smoothly overland by bonded heavy freight into Ukraine. All equipment is secured inside anti-corrosion vacuum-sealed foil packs within reinforced, fumigated seaworthy wooden crates engineered for multi-modal handling.
Can Fenvix accommodate Ukrainian local 3-phase grid voltages and frequency tolerances?
Yes. Our standard systems are natively built for 380V/400V 3-phase AC at 50Hz. To mitigate the grid volatility frequently encountered across industrial districts in Ukraine, our input transformer and front-end rectifier stages are engineered with wide continuous input tolerances of ±15% (320VAC to 440VAC), backed by high-surge metal oxide varistors (MOVs) and lightning surge protection compliant with IEC/EN 61000 standards.
Should we specify water cooling or forced air cooling for our motor test facility in Dnipro?
For test stands running short-duration tests or power envelopes below 40kW in clean laboratory environments, forced air cooling is cost-effective and low-maintenance. However, if your testing involves continuous duty cycles, high currents exceeding 2,000A (e.g., armature short-circuit tests), or operation in plants with airborne conductive dust (coal dust, steel fines, foundry silica), we strongly recommend closed-loop deionized water cooling. Water-cooled systems permit completely sealed IP54 enclosures, preventing contamination of internal power semiconductors and vastly extending equipment operating life.
What remote control interfaces are supported for automated SCADA and test benches?
Every Fenvix industrial DC supply can be integrated into custom test setups via standard RS485 Modbus-RTU or isolated 0–5V / 0–10V / 4–20mA analog interfaces. We also offer optional Ethernet (Modbus-TCP), CANopen, and Profibus gateways for direct communication with Siemens, Schneider, or Beckhoff industrial PLCs and National Instruments LabVIEW software suites, allowing complete automated recipe sequencing, real-time waveform capture, and automated fault logging.
What factory certifications, warranties, and commissioning support do you supply?
Guangdong Fenvix Technology Co., Ltd. operates under a certified ISO 9001 quality management framework, and our production facilities are independently on-site audited by TÜV Rheinland. Units comply with CE directives including the Low Voltage Directive (LVD) and Electromagnetic Compatibility (EMC). Every machine carries an international 12-month factory warranty backed by comprehensive spare parts kits, direct engineering video commissioning sessions, complete English electrical schematics, and terminal wiring diagrams.
Ready to Configure Your High-Power Motor Test Bench?
Consult directly with Fenvix senior power electronics engineers. Share your motor ratings, inrush envelopes, and desired automation bus to receive an application-specific schematic and turnkey factory quotation within 24 hours.