The aromatic hydrocarbon plant is one of the largest single-train crystallization process facilities in China, with a required annual operation time exceeding 8,000 hours. Nancal Electric's high-capacity water-cooling medium voltage drive stood out due to its superior performance and high-reliability technological advantages. Over two years of operation, the system achieved zero unplanned downtime, meeting all process and reliability requirements for aromatic hydrocarbon production.
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.
IndustryPetrochemical ObjectiveIn petrochemical industry, the one of main energy consuming equipment is the pump. The traditional drive solution can only run at the grid with fixed speed through the valve throttling to hydraulic coupling for speed regulation.