Hydraulic couplings are core transmission components in power generation, metallurgy, and heavy-duty equipment. Traditional coupling test benches have long faced industry-wide challenges such as high energy consumption, insufficient control accuracy, and incomplete operating condition coverage. Nancal Electric supplied a four-quadrant medium voltage drive for this project, adopting a dual-motor back-to-back closed-loop energy recovery architecture. Grid-side fully controlled IGBT rectification enables bidirectional energy flow, meeting the stringent requirements of complex testing on high-power hydraulic couplings for wide speed range, high torque, and high-precision loading. Since commissioning, the project has completed type tests for nuclear power hydraulic couplings with significant energy-saving results, providing an outstanding example for the localization and upgrade of large transmission component test benches in China.
The PetroChina Dushanzi Petrochemical Tarim 1.2 million tons/year Phase II Ethylene Project achieved successful first-feed commissioning, marking the official commissioning of China's first ethylene plant with fully electric-driven compressors using indigenous technology. Shanghai Nancal Electric Co., Ltd. overcame multiple technical bottlenecks and successfully developed ultra-large capacity, high-reliability medium voltage drives for the million-ton-class ethylene plant. This solution can be applied to both new million-ton-class ethylene projects and retrofit upgrades of existing units.
PetroChina Dushanzi Petrochemical's Tarim 1.2 million tons/year Phase II Ethylene and Supporting Green Low-Carbon Demonstration Project, China's first full-chain green and low-carbon ethylene project, achieved successful first-feed commissioning. Behind this achievement, over 20 Nancal Electric large-capacity medium voltage drives are operating reliably, ensuring safe and continuous production at this world-class petrochemical base.
As a critical downhole conveying equipment, the ESP variable frequency drive system faces three major challenges: long-cable transmission, choke signal interference, and harsh on-site operating environments. Nancal Electric's medium voltage drives, based on cell series multi-level topology, with long-cable adaptive control as the core and choke system compatibility as a distinctive feature, effectively address industry pain points through deep integration of hardware optimization and software algorithms.
Nancal Electric has officially launched its comprehensive, one-stop retrofit and upgrade service for medium voltage drives. Power cells and control systems can be easily renewed, delivering a major reliability upgrade, with both on-site and factory remanufacturing options. Our solutions help extend equipment service life and improve operational efficiency.
Nancal Electric supplies medium voltage drives for the newly commissioned Unit 3 at PipeChina's Guangzhou Compressor Station, continuing its long‑term role as a core localization partner for China's unified national pipeline network.
Nancal Electric completes full localization of eight imported RCP drives at Haiyang Nuclear Phase I, eliminating unplanned shutdowns and enhancing operational reliability with a "4-operation, 1-standby" drive system configuration.
2025 was a year of deep technical cultivation and steady advancement for Nancal Electric. Guided by the spirit of engineers, we drove continuous innovation in power electronics and electrical drives, delivering reliable products and solutions to help build a clean, low-carbon, safe, and efficient energy ecosystem.
Recently, following independent application, recommendation, expert evaluation, and public announcement in accordance with government guidelines, Shanghai Nancal Electric Co., Ltd. has been officially granted the title of 2023 Shanghai Science and Technology “Little Giant” Enterprise.
Nancal HVVF series drives can be used in constant torque control such as conveyor. The key control performance is to realize the coordination between multi-motors.
Nancal Electric HVVF series converter used in sewage treatment plant
Nancal 2Units of AMP-L series low voltage shore power used in Guangzhou port.