
Wolong WD5100 High-Voltage VFD Case Study: Saudi CG Test Bench Project – 6560kW Motor Drive Variable Frequency Speed Control
Project Name: CG Saudi Test Bench Project MVC Location: Saudi Arabia Commissioning Date: 2014 6 Equipment Configuration: 6560 kW × 1 units Load Type: Motor This project utilizes a unit-series multi-level high-to-high voltage variable frequency drive (VFD) to provide variable-speed drive control for the high-power motor on the test bench, meeting the wide-range speed and torque requirements of the testing conditions. Products on the same platform (Wolong WD5100/WD5180 series) leverage this proven experience. They support 6kV/10kV voltage levels, feature superior output waveforms from unit-series multi-level topology, offer high input power factor, and exhibit low harmonic distortion. These drives are ideal for driving high-inertia loads such as motors, pumps, fans, and compressors. Project Value: Validation of large-capacity single-unit drive, adaptability to diverse test bench conditions, overseas project delivery experience, and coordination with medium-voltage system protection.
RESULTS
Transformation Results
KEY METRICS
6560kW
1Tai
Motor
2014-06
Saudi Arabia
The long-term stable operation of the single-motor load for 6560kW validates the reliability and speed control performance of the high-voltage variable frequency solution in large-capacity test bench drive applications.
Data Scope and Validation Source: The above metrics are derived from on-site measurements under identical operating conditions before and after the retrofit (comparing energy meter readings with equipment operation logs). The statistical period covers 30 consecutive days of full operation post-retrofit. Motor energy efficiency ratings follow GB 18613-2020 and IEC 60034-30-1, while product efficiency values are cited from the manufacturer's factory test reports. Actual results may vary based on load rate, annual operating hours, and specific operating conditions.
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Related Products & Industries
Related ProductsCo2Item

Wolong WD5100 Series General-Purpose High-Voltage Variable Frequency Drive
Series-connected multi-level AC-DC-AC high-to-high configuration. 6kV series capacity: 250~9000 kVA; 10kV series: 250~16000 kVA. Input power factor ≥0.95, input current THD ≤4%. Maximum speed ratio 200:1 (FVC). Compatible with asynchronous motors, electrically excited synchronous machines, and permanent magnet synchronous machines. Widely used for energy saving in fans and pumps, as well as process drives, across oil & gas, power, chemical, metallurgy, building materials, and municipal sectors.
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Wolong WD5180 Series High-Performance Compact High-Voltage Variable Frequency Drive
1 kV, capacity 280~250 kVA. Shares the same control system as WD5100. Features a fully sealed power unit design for superior environmental adaptability. Overall dimensions are approximately 45% smaller than standard models. Core components like film capacitors offer significantly extended lifespans. Ideal for energy-saving applications in fans and pumps across metallurgy, HVAC, chemical processing, non-ferrous metals, building materials, coal mining, municipal services, power generation, and paper manufacturing sectors.
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