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High Voltage Inverter
WD5100 / WD5180 High-Voltage VFD, 6/10 kV, 280-16000 kVA
Wolong WD5100 / WD5180 cell-cascade high-voltage frequency converter: 6 kV 315-9000 kVA, 10 kV 280-16000 kVA, efficiency ≥96%, IEEE 519 harmonics.
- Genuine Wolong Nanyang motor with original factory documents
- ATEX / IECEx certificates available for explosion-proof models
- Quotation and model check within 24 hours
- Shipping worldwide by sea or air, CIF or with your forwarder
Product Description
The WD5100 is Wolong Power Electronics' general-purpose high-voltage frequency converter; the WD5180 is its high-performance compact version. Both use cascaded H-bridge power cells (unit cascade, AC-DC-AC, high-high) with a dry-type multi-pulse phase-shifting transformer, and drive asynchronous, electrically excited synchronous and permanent-magnet synchronous motors.
Wolong Power Electronics belongs to Wolong Electric Group and covers drives from 380 V to 10 kV, including low-voltage inverters, 1140 / 3300 V three-level inverters and cascaded high-voltage inverters.
WD5100 and WD5180 Compared
| WD5100 capacity | 6 kV: 315 - 9000 kVA; 10 kV: 280 - 16000 kVA |
|---|---|
| WD5180 capacity | 10 kV: 280 - 2500 kVA |
| WD5100 design | classic cell cascade with universal high-voltage vector control and bypass |
| WD5180 design | two-quadrant synchronous / asynchronous control platform, about 45% smaller than general products, same control system as WD5100; fully enclosed power units; transformer and power-unit cabinets share heat dissipation; film-capacitor life up to 100% longer |
| Overload | WD5100: 120% rated current for 1 min; WD5180: 110% for 1 min |
Technical Data
| Input | 3-phase 50/60 Hz, 6 kV or 10 kV; ±10% at full load, -35% to -10% long-term with derating; 50 Hz ±5% |
|---|---|
| Input power factor | ≥ 0.95 above 20% load |
| Input current harmonics | ≤ 4%, meets IEEE 519-1992 and GB/T 14549-93 |
| Output voltage | 0 - 6 kV or 0 - 10 kV |
| Output frequency | 0 - 120 Hz (higher on request) |
| Power cells | 690 V cells; 15 (6 kV), 24 (10 kV WD5100), 12 (WD5180) |
| Speed ratio | 40:1 V/F; 100:1 SVC; 200:1 FVC |
| Speed accuracy | ±0.5% SVC; ±0.2% FVC |
| Control | V/F, sensorless or sensor vector (SVC / FVC); ARM, DSP and FPGA; touch-screen HMI |
| Rectifier / inverter | diode three-phase full bridge / IGBT bridge |
| Acceleration / deceleration | 0.1 - 6500 s |
| Overall efficiency | ≥ 96% |
| Protection | IP30; forced-air cooling; indoor |
| Noise | ≤ 80 dB |
| Mean time between failures | 50,000 hours |
| Communication | CAN, Modbus RTU, Modbus TCP; PROFIBUS-DP optional |
| I/O | 25 relay dry-contact inputs, 33 relay outputs, 2 analog inputs and 4 analog outputs (4 - 20 mA or 0 - 10 V) |
| Ambient / altitude | pre-heating below 0 °C, derating above 40 °C; derating above 1000 m |
| Control power | 380 V ±10% AC, three-phase four-wire |
| Cabling | bottom in, bottom out (customisable) |
Main Components
- Phase-shifting transformer: dry-type, multi-pulse rectification for high power factor and no harmonic pollution of the grid
- Control system: high-speed ARM, DSP and FPGA; vector control with stacked PWM for sinusoidal output
- Output waveform: 4N+1 level PWM, almost sinusoidal, friendly to standard motors
- Power units: modular for easy maintenance and replacement
- Communication: optical-fibre isolated links with high noise immunity
- Bypass cabinet: manual or automatic bypass to switch between fixed and variable frequency
- Filters: pull-up isolation filter screens that are easy to replace
Functions
- Synchronous and asynchronous motor vector control, including PM and electrically excited machines
- Low-voltage ride-through: keeps running during short grid dips
- Master-slave control, one-to-one or one-to-many, over CAN
- Flying start: finds the speed and direction of a coasting motor and restarts smoothly
- Automatic restart after a short power loss
- Asymmetric cell bypass with neutral-point shift: if a power cell fails it is bypassed and the drive keeps running
- Thermal simulation of every power rating; operation at high altitude and in coastal areas
- Comprehensive protection: motor and output overload, short circuit and earth fault, input over-current, over- and under-voltage, phase loss, cooling-fan alarm, door interlock, transformer over-temperature
Model Code
Example WD5100-1000-M100-ATB: WD51 = Wolong large drive products; 00 = use (00 general, 10 internal mixer, 20 air-conditioner, 30 variable-frequency power supply, 40 water-cooled, 80 compact); 1000 = rated capacity (kVA); M = input voltage (A 380 V, B 690 V, C 1140 V, D 3 kV, E 3.3 kV, G 4.2 kV, H 6 kV, L 6.6 kV, M 10 kV, N 11 kV, P 13.8 kV); 100 = output voltage (060 = 6 kV, 100 = 10 kV); A = motor type (A asynchronous, P PM, S electrically excited synchronous); T = without regeneration (F = with energy feedback); B = cell bypass.
Applications
Energy saving on fans and pumps, compressors, belt conveyors, hoists, crushers and ball mills in petroleum, power, chemical, metallurgy, building materials, coal mines, municipal water, HVAC, papermaking, pharmaceuticals and test equipment.
Common Questions
WD5100 or WD5180?
WD5180 is the compact choice up to 2500 kVA at 10 kV; WD5100 covers up to 9000 kVA at 6 kV and 16000 kVA at 10 kV.
Can it drive an existing standard motor?
Yes, the 4N+1 level output is almost sinusoidal and suits standard motors. For new projects see the YVF VFD motor.
What if a power cell fails?
With cell bypass the failed cell is bypassed and, using neutral-point shift, the drive keeps running at reduced voltage.
Related Products
- 5100 series water-cooled: water-cooled HV inverter, 10 - 80 MVA
- YVF: HV variable-frequency motor
How to Order
For a fast, accurate quotation please send: rated power (kW), voltage and frequency, motor type and nameplate, load type, supply voltage, bypass requirement, quantity and destination port. For a replacement, a photo of the old motor nameplate is the quickest way to match it.
Frequently Asked Questions
Do your explosion-proof motors have ATEX and IECEx certificates?
Yes. Wolong Nanyang explosion-proof motors, both low-voltage and high-voltage, are available with ATEX and IECEx certificates for Europe and international projects, and GOST for the Russian market. Tell us which certificate you need when you ask for a quote.
Can this motor replace my existing motor?
Yes. For new projects we quote and select the model to your requirements. For a replacement, please send a nameplate photo or outline drawing of the old motor, and we will match the shaft height, mounting and installation dimensions.
Can you supply replacements for Schorch, Brook Crompton or Morley motors?
Yes. Schorch, Brook Crompton and Morley belong to the Wolong Electric Group, and we can supply Wolong motors built to replace them, matched to your mounting dimensions.
Can you ship to my country, and what is the lead time?
Yes. We ship worldwide on CIF terms, or you can use your own forwarder. The usual production time is about 3 months, depending on the model and quantity.
What information do you need for a quotation?
Rated power (kW), voltage and frequency, number of poles or speed, Ex marking or hazardous zone, mounting type (e.g. B3, B35, V1), quantity and destination port. A nameplate photo of the old motor helps if it is a replacement.
Get a Quote for WD5100 / WD5180 High-Voltage VFD, 6/10 kV, 280-16000 kVA
Send us your requirements. An engineer will reply with a model check and price within 24 hours.
