Variable Frequency Drive
WOLONGWolong WD5100 Series General-Purpose High-Voltage Variable Frequency Drive
The WD5100 series general-purpose high-voltage frequency converter adopts a unit-series multi-level AC-DC-AC high-to-high topology and is built on a two-quadrant synchronous/asynchronous motor control platform, ensuring stable and reliable performance. The product line covers 6kV (315~9000 kVA) and 10kV (280~16000 kVA) series. It features an input power factor ≥0.95, input current harmonic distortion ≤4%, and complies with IEEE519-1992 and GB/T14549-93 standards. Supporting V/F, SVC, and FVC control modes, it drives asynchronous motors, electrically excited synchronous motors, and permanent magnet synchronous motors. Overall efficiency reaches ≥96%, with an MTBF of 50000 hours. Equipped with comprehensive system protection and extensive communication interfaces, it is widely used for energy-saving applications in fans and pumps across oil, power, chemical, metallurgy, building materials, and municipal sectors, as well as process drive applications for compressors, belt conveyors, elevators, crushers, and ball mills. For international projects, the WD5100/WD5180 platform has been deployed in over 20 countries, including Saudi Arabia, South Africa, Indonesia, Mexico, India, Germany, and Pakistan, covering 65 projects. Single-unit capacities range from 200 to 6560 kW, serving diverse loads such as motors, water pumps, fans, injection pumps, compressors, ball mills, elevators, crushers, internal mixers, and presses. Engineering delivery includes GA drawings, single-line diagrams, wiring diagrams, logic diagrams, and cable schedules (issued approximately 2 weeks after contract signing). Services also coordinate with existing medium-voltage system protection, confirm external interface and control power requirements, define cabinet dimensions with room and HVAC specifications, provide foundation and structural drawings, supply signal exchange lists, and offer engineering software and configuration file backups (excluding core control source code). On-site operations training and system manual delivery are included.
Technical Specifications
- TopologySeries-connected multi-level AC-DC-AC high-to-high configuration
- Input Voltage6kV/10kV Three-Phase 50/60Hz
- Voltage fluctuation range±10% rated operation; long-term derating of -35% to -10% is permitted
- Frequency fluctuation range50Hz ± 5%
- Unit Input Voltage690V
- Input Power Factor≥0.95 (above 20% load)
- Input current harmonics≤4%, compliant with IEEE519-1992 and GB/T14549-93 standards
- Output Voltage Range0~6kV / 0~10kV
- Output capacity range6kV 315~9000kVA, 10kV 280~16000kVA
- Unit output voltage690V
- Output frequency range0~120Hz, customizable above 120Hz
- Speed ratio40:1 (Generic Vector) / 100:1 (SVC) / 200:1 (FVC)
- Speed stability accuracy±0.5% (SVC) / ±0.2% (FVC)
- Number of Power Units6kV 15, 10kV 24
- Control ModeV/F, Sensorless Vector Control (SVC), Vector Control with Speed Sensor (FVC)
- Compatible Motor TypesAsynchronous motor, electrically excited synchronous machine, permanent magnet synchronous motor
- Rectification TypeDiode Three-Phase Full-Bridge
- Inverter ModeIGBT Inverter Bridge
- Acceleration/Deceleration Time0.1~6500s
- Start/Stop ControlLocal or remote
- Control SystemARM, DSP, FPGA, HMI
- Panel DisplayTouchscreen, Simplified Chinese
- Overload capacity120% Rated Current / 1min
- Overall System Efficiency≥96%
- Variable frequency drive with fuseYes
- Ingress Protection RatingIP0
- System ProtectionMotor overload, output overload, output short circuit, output ground fault, input overcurrent, input overvoltage, input unbalance, input ground fault, cooling fan failure alarm, door interlock protection, transformer overheating alarm, transformer trip due to overheating
- Mean Time Between Failures (MTBF)50000 hours
- Communication InterfaceCAN, Modbus RTU, Modbus TCP, PROFIBUS-DP (optional)
- Digital Input25-channel relay dry contact
- Digital Output33-channel relay dry contact
- Analog Input2 channel, 4-2 0mA or 0~1 0V
- Analog Output4 channel, 4~2 0 mA or 0~1 0 V
- EnvironmentIndoor
- Ambient TemperaturePreheat below 0°C; derate above 40°C
- Use Altitude<1000m, >1000m requires derating (specify at time of order)
- Total Device Noise≤80dB
- Cooling MethodForced air cooling
- Power Control380V±10% AC Three-Phase Four-Wire
- Cable entry/exit methodBottom-in/Bottom-out (Customizable)
Key Advantages
Modular Multilevel Topology with Bypass Function for High Reliability
Input power factor ≥0.95, input current harmonics ≤4%, minimal grid pollution
Supports vector control algorithms for synchronous and asynchronous motors with strong drive capability.
LVRT (Low Voltage Ride-Through): Enables continued operation during short-term grid voltage dips.
Flywheel start function that accurately tracks the motor's current speed and direction.
Power-loss recovery: automatically restores to the state before power loss
Master-slave control for precise one-to-one and one-to-many management
Enriched bus interfaces (CAN/Modbus/PROFIBUS-DP) for easy DCS integration
Asymmetric unit bypass with neutral point shift enables stable operation post-fault.
Built for extreme environments, including high-altitude and coastal regions.
Global operations span 20+ countries and 65 projects across Saudi Arabia, South Africa, Indonesia, Mexico, India, Germany, Pakistan, Kenya, Poland, Thailand, Turkey, Vietnam, and more, with single-unit capacity ranging from 200 to 6560 kW.
Supports motor, pump, fan, injection pump, compressor, ball mill, hoist, crusher, internal mixer, press, and other process drives.
Engineering delivery includes GA drawings, single-line diagrams, wiring diagrams, logic diagrams, cable schedules, medium-voltage protection coordination, cabinet dimensions and HVAC requirements, foundation drawings, signal exchange lists, engineering software backup, and on-site O&M training.
Use Cases
Energy-efficient fans and pumps for the oil, power, petrochemical, metallurgy, building materials, and municipal sectors.
Process drive systems for compressors, belt conveyors, elevators, crushers, ball mills, etc.
HVAC Systems
Municipal Water Supply and Sewage Pump Stations
Power plant boiler feed pumps, induced and forced draft fans
Multi-drive load distribution for paper and non-ferrous metal industries
Test Equipment UHF Output
Long-cable drive for low-frequency, high-torque starting
Low-Harmonic Power Distribution Network Applications
Permanent Magnet Synchronous Motor Drive
Select by Voltage
View rated currents for each voltage- Rated current range
- Convert current based on 380V
- Overwrite Selection Tiers
- Available for all series
For domestic low-voltage grid standards, 3 kW and below use Y connection, while over 3 kW uses Δ connection, suitable for most factory distribution scenarios.
- Rated current range
- Convert current based on 380V
- Overwrite Selection Tiers
- Available for all series
Rated current for this voltage condition is listed in the parameter table; verify against your site's power system during selection.
For the same model, output power, speed, efficiency, power factor, and torque remain constant regardless of voltage; only the rated current is adjusted using I = IN × 380 / U. Dual-voltage motor models (380/660V and 660/1140V) are switched via jumpers in the terminal box. The 1140V model is designed for high-voltage supply in underground coal mines and requires verification that its explosion-proof certification covers the application. Variable frequency drives (VFDs) are categorized by supply voltage; specify the site supply voltage, phase count, and frequency at the time of order.
Overseas Project Delivery Process
This process is based on the K Electric VFDs project technical clarification and overseas delivery practices, with timelines anchored to the contract effective date. Specific arrangements for drawing sign-off, shipment, and site arrival shall be governed by the technical agreement between both parties.
- 01
Contract Signing and Project Kickoff
Week 0Responsible Party:both parties- Confirm technical agreement, scope of supply, and delivery boundaries.
- Manufacturer to provide project execution plan and contact list
- Owner provides on-site basic data and existing medium-voltage system protection logic
Phase Deliverables:Executed Contract, Technical Agreement, and Project Execution Plan
- 02
Drawing Approval and Sign-off
Contract post 2 weeksResponsible Party:Manufacturer- Produce GA drawings, single-line diagrams, wiring diagrams, schematic diagrams, logic diagrams, and cable schedules.
- Submit cabinet dimensions, room space, and HVAC requirements
- Submit foundation and structural drawings (including installation dimensions and civil engineering requirements)
- Commence operations only after joint confirmation by the Owner/Design Institute.
Phase Deliverables:Counter-signed drawings and cable schedule
- 03
Protection Coordination and Interface Confirmation
2–4 weeks after contractResponsible Party:both parties- Perform protection coordination calculations with the existing medium-voltage system.
- Confirm external interface requirements and control power requirements
- Confirm connection method for fire detection and extinguishing protection signals (smoke detector/alarm signal to VFD)
- Submit the complete signal exchange list before shipment.
Phase Deliverables:Protect Coordination Records and Signal Exchange Lists
- 04
Production and Factory Testing
8–14 weeks after drawing coordinationResponsible Party:Manufacturer- Organize units and complete machine production based on coordinated drawings.
- Complete unit testing, system integration testing, and factory acceptance testing.
- Prepare backup of engineering software and configuration files (excluding core control source code)
Phase Deliverables:Factory Test Report and Software Configuration Backup
- 05
Shipping and Delivery Acceptance
1 to 3 weeks after passing factory testingResponsible Party:Manufacturer- Responsible for export packaging, shipping, and documentation.
- Owner/Agent: Receipt Count & Visual Inspection
- Sea/land freight lead times vary by project country.
Phase Deliverables:Shipping Documents and Arrival Acceptance Records
- 06
On-site debugging and operations training
Schedule upon arrival based on site conditionsResponsible Party:Manufacturer- Technicians arrived to perform power-on checks, parameter tuning, and load testing.
- Conduct operations training for customer engineers
- Delivery System Manual and Spare Parts List
Phase Deliverables:Debug Report, Training Records, and System Manual
WD5100/WD5180 Series Selection Parameters
← Swipe left or right to view full parameters; first column is fixed
| Parameter | 6kV Series | 10kV Series |
|---|---|---|
| Enter rated voltage | Three-phase 50/60Hz, 6kV | Three-phase 50/60Hz, 10kV |
| Voltage fluctuation range | ±10% full load, -35% to -10% derated | ±10% full load, -35% to -10% derated |
| Frequency fluctuation range | 50Hz ± 5% | 50Hz ± 5% |
| Unit Input Voltage | 690V | 690V |
| Input Power Factor | ≥0.95 (above 20% load) | ≥0.95 (above 20% load) |
| Input current harmonics | ≤4% (IEEE519/GB14549) | ≤4% (IEEE519/GB14549) |
| Output Voltage Range | 0~6 kV | 0~1 kV |
| Output capacity range | 315~900 kVA | 280~1600 kVA |
| Unit output voltage | 690V | 690V |
| Output frequency range | 0~12 Hz (customizable) | 0~12 Hz (customizable) |
| Speed ratio | 40:1/100:1/200:1 | 40:1/100:1/200:1 |
| Speed stability accuracy | ±0.5%(SVC)/±0.2%(FVC) | ±0.5%(SVC)/±0.2%(FVC) |
| Number of Power Units | 15 | 24 |
| Control Mode | V/F, SVC, FVC | V/F, SVC, FVC |
| Compatible motor | Asynchronous / Electrically Excited Synchronous / Permanent Magnet Synchronous | Asynchronous / Electrically Excited Synchronous / Permanent Magnet Synchronous |
| Rectification/Inversion | Diode Full Bridge / IGBT | Diode Full Bridge / IGBT |
| Acceleration/Deceleration Time | 0.1~6500s | 0.1~6500s |
| Overload capacity | 120%/1min | 120%/1min |
| Overall System Efficiency | ≥96% | ≥96% |
| Ingress Protection Rating | IP0 | IP0 |
| MTBF | 50000h | 50000h |
| Communication Interface | CAN / Modbus RTU / TCP / PROFIBUS-DP | CAN / Modbus RTU / TCP / PROFIBUS-DP |
| Digital Input/Output | 25-lane/33-lane | 25-lane/33-lane |
| Analog input | 2 channel 4-20mA/0-10V | 2 channel 4-20mA/0-10V |
| Analog Output | 4 channel 4-20mA/0-10V | 4 channel 4-20mA/0-10V |
| Ambient Temperature | Preheat below 0°C, derate above 40°C | Preheat below 0°C, derate above 40°C |
| Altitude | <1000m, derating above | <1000m, derating above |
| Noise | ≤80dB | ≤80dB |
| Cooling Method | Forced air cooling | Forced air cooling |
| Power Control | 380V±10% 3-Phase 4-Wire | 380V±10% 3-Phase 4-Wire |
| Cable entry/exit method | Bottom-in, bottom-out | Bottom-in, bottom-out |
Overseas Project Portfolio
65
Overseas Operational Projects
200~6560kW
Single-unit coverage range
16
Countries and regions overwritten (count)
2009~2018
Commissioning Year Range · Cumulative152Tai
Filter by project location
Filter by load type
← Swipe left or right to view the full list; the first column is fixed.
| No. | Project Name | Project Location | Commissioning Time | Single-unit capacity | Quantity | Load Type | Series |
|---|---|---|---|---|---|---|---|
| 001 | CG Saudi Test Bench Project | Saudi Arabia | 2014, 6 | 6,560kW | 1Table | Motor | MVC |
| 002 | SEVERN DRIVES & ENERGY PO No. P300014 | Overseas (Multi-country) | 2016, 1 | 6,000kW | 1Table | Water Pump | MVC |
| 003 | Australia CSE Phase2 Kenya Project | Kenya | 2017, 7 | 4,000kW | 1Table | Fan | MVC |
| 004 | Middle East AL-WAHA Oilfield Phase II | Middle East | 2012, 7 | 3,700kW | 1Table | Injection Pump | HVC |
| 005 | SEVERN DRIVES & ENERGY PO No. P300013 | Overseas (Multi-country) | 2016, 1 | 3,200kW | 1Table | Water Pump | MVC |
| 006 | Rio Tinto South Africa Phase 2 | South Africa | 2015, 5 | 3,000kW | 2Table | Fan | MVC2 |
| 007 | Rio Tinto South Africa Phase 3 | South Africa | 2015, 9 | 3,000kW | 2Table | Fan | MVC2 |
| 008 | Middle East AL-WAHA Oilfield | Middle East | 2010, 12 | 2,300kW | 2Table | Fan | HVC1 |
| 009 | Mexico DAINSA Phase3 PO No. 2518 | Mexico | 2015, 12 | 2,250kW | 2Table | Water Pump | MVC5 |
| 010 | Pakistan Karachi GGL-II Project | Pakistan | 2014, 3 | 2,240kW | 1Table | Compressor | MVC |
| 011 | Middle East AL-WAHA Oilfield Phase III | Middle East | 2014, 3 | 2,240kW | 1Table | Water Pump | High Voltage Circuit |
| 012 | Mexico POWER TECH PO No. 904 | Mexico | 2014, 5 | 2,000kW | 1Table | Ball Mill | MVC |
| 013 | ATB Germany Grid-Connected Project Order 44220701 | Germany | 2018, 3 | 2,000kW | 1Table | Compressor | MVC |
| 014 | India Yantra Harvest Phase 5 | India | 2016, 11 | 1,800kW | 1Table | Fan | MVC3 |
| 015 | Powerdrive SpA Demo Phase 1 | Overseas (Multi-country) | 2016, 11 | 1,800kW | 1Table | Fan | MVC |
The list isWolong WD5100 Series General-Purpose High-Voltage Variable Frequency DriveReal-world deployment records of high-voltage variable frequency drives on the same platform, including project name, country/region, commissioning date, unit capacity, quantity, and load type. Exportable to CSV for bid qualification documents and performance verification.
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Wolong WD5100 Series General-Purpose High-Voltage Variable Frequency DriveProduct Catalog (PDF) – Download for full technical specs, installation dimensions, and selection tables.
Wolong WD5100 Series General-Purpose High-Voltage Variable Frequency DriveProduct Catalog
PDF Document · Free Public Download
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