WD4000
Medium Voltage Variable Frequency Drives (VFD)
Wolong is a leading manufacturer of high-voltage drives with 25 years of experience and a global installed base for industrial pump, fan, blower, compressor, and conveyor applications.
We offer essential VFDs to help reduce energy consumption and ease maintenance costs for the Mining, Oil & Gas, Water & Wastewater, Power Generation, and general processing industries.
Advantages
Best-in-class 18-pulse phase shift transformer as standard starting at 1000 HP.
Performs with low distortion which lowers harmonics for the local grid, exceeding IEEE 519 and most utility codes.
Cascaded H-Bridge is a proven state-of-the-art topology featuring:
- An IGBT based multi-level voltage source inverter delivering low distortion output.
- This design eliminates the need for filters and can control legacy as well as modern motors.
- It is superior to 2 or 3 level inverters and far superior to current source inverter designs.
- High system reliability with neutral rebalancing. The drive will continue to run if a power module fails so an operator can plan a controlled shutdown.
- Maintenance is easy with a modular design, allowing fast swap out of power modules. The design also allows front access to all components.
Industry-leading power density for an optimal footprint
- This high power dense system optimizes floor space, and the modular/drawer structure is easy to maintain.
Features
Technical Scope
- 4160 V
- 1000 - 5500 HP
- 130 - 635 Amps
- Input Voltage - 4160V ±10%, optionally 3.3 - 13.8kV
- Input Voltage Frequency - 50/60 Hz, ±5%
Type | Rated Motor Voltage (kV)) | Current (A) | Shaft Output (HP) | Shaft Output (kW) |
|---|---|---|---|---|
WD4000-4-130 | 4.16 | 130 | 1000 | 746 |
WD4000-4-159 | 4.16 | 159 | 1250 | 933 |
WD4000-4-190 | 4.16 | 190 | 1500 | 1119 |
WD4000-4-222 | 4.16 | 222 | 1750 | 1306 |
WD4000-4-254 | 4.16 | 254 | 2000 | 1492 |
