This medium voltage drive has been in stable operation on-site for over three years and has withstood multiple grid voltage sags of varying severity.The power cell fast automatic bypass design and the Low Voltage Ride Through (LVRT) capability of Nancal Electric's medium voltage drives address internal cell failures and external grid voltage sags, respectively, effectively preventing unplanned shutdowns caused by such issues.
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.
Unplanned shutdown is the costliest "silence" on a production line. Faced with the high price of unexpected stops, how can a medium voltage drive leverage its high reliability to reduce the risk of unplanned shutdown? Read on to discover Nancal Electric's solution.
A well-known domestic chemical enterprise planned to implement an energy-saving, emission-reduction, and capacity-expansion project for its polycarbonate production unit. This included converting the originally steam-driven MVR steam compressor to electric drive. The MVR steam compressor system was originally driven by a high-speed steam turbine (referred to as the steam turbine), directly connected to the drive shaft of the high-speed centrifugal compressor. The NC HVVF series medium voltage drives provided by Nancal Electric delivered excellent high-frequency drive performance and system safety control performance for the high-speed PMSM in this MVR steam compressor "steam-to-electric" retrofit project of a polycarbonate production unit, providing highly reliable and sustainable technical support for the project retrofit.
The Reactor Coolant Pump (RCP) Drive is a critical single-point-of-failure electrical equipment in the third-generation AP1000 nuclear power plant. In 2022, Shandong Nuclear Power Company Ltd., Shanghai Nuclear Engineering Research & Design Institute, and Shanghai Nancal Electric Co., Ltd. initiated a collaboration and successfully developed an RCP Drive for the third-generation AP1000 nuclear power plant in 2023. This significantly enhances the operational reliability of the RCP Drives and the flexibility of standby RCP Drive switching, further improving the operational reliability and economic efficiency of AP1000 nuclear power units.
Shanghai Nancal Electric Co., Ltd., in collaboration with Shandong Nuclear Power Company Ltd. (SDNP) and Shanghai Nuclear Engineering Research & Design Institute (SNERDI), has been honored with the Second Prize for Science and Technology Progress by the China Nuclear Energy Association (CNEA) for the joint project "Localized R&D and Application of Reactor Coolant Pump (RCP) Drives." The project team successfully developed China's First MV Drive for the Generation III AP1000 Nuclear Power Plant Reactor Coolant Pump with fully independent intellectual property, achieving a breakthrough in core technology localization. This accomplishment is of significant importance for enhancing the safety and reliability of nuclear power. The RCP Drive has been deployed for commercial operation and was included in the National Energy Administration's List of Major Technical Equipment in the Energy Sector in 2024.
As a leader in high-capacity medium voltage drives, Nancal Electric attended the 4th Petrochemical Procurement & Supply Chain Innovation Exchange Conference and delivered a technical presentation titled "High-Reliability Medium Voltage Drive Technology and Applications," sharing the company’s innovative achievements and practical experience in the petroleum and petrochemical sectors.
Recently, Shanghai Nancal Electric Co., Ltd. has been officially recognized as a National Key "Little Giant" Enterprise. This recognition focuses on key industrial chains, strategic emerging industries, and future industrial sectors. High-reliable large-capacity medium voltage drives are widely used in key sectors of the national economy, including military, nuclear power, oil&gas, pipelines, chemical, energy storage, mining, and metallurgy, playing a vital role in key industrial chains.
Shanghai Nancal Electric Co., Ltd. has been officially recognized as a Shanghai Center for Enterprise Technology for 2025. Guided by its corporate values—"Quality makes customer value, speed makes company benefits, innovation makes industry growth", Nancal Electric continues to prioritize technological advancement, and refine its products based on user needs, contributing to the progress of the industry as a whole.
Recently, the 9th National Electrical Technology Conference for Petroleum and Chemical Industries was successfully held in Chengdu. The event was hosted by the China Association of Mechatronics Technology and Application and co-organized by Shanghai Nancal Electric Co., Ltd., among other companies. Petrochemical production is a continuous process that demands extremely high equipment reliability. Nancal Electric has achieved multiple domestic "first-of-its-kind" breakthroughs in sectors with stringent reliability requirements, including military, nuclear power, chemical, mining, and energy storage, showcasing its technological leadership and extensive engineering expertise.
In a chemical gasification plant, the propylene compressor plays a crucial role with high demands for operational reliability and stability. Equipment failure can have severe impacts on the plant and downstream production. The plant originally used an imported medium-voltage drive, but its failure rate has been increasing. A significant failure, especially one that cannot be quickly repaired, could halt gasification operations, disrupt downstream production, and lead to substantial economic losses. After extensive research and technical discussions, the user selected Shanghai Nancal’s medium-voltage drive for hot standby, enabling the redundant automatic switching technology of NC HVVF to resolve issues caused by failures in the original imported drive and ensure uninterrupted production.
