An electric Gate Valve is a type of valve that uses an Electric Actuator to open and close the gate of the valve. The gate is a flat or wedge-shaped piece that moves perpendicular to the flow of the fluid. When the valve is open, the gate is lifted or pushed aside to allow the fluid to pass through. When the valve is closed, the gate is lowered or pressed against the valve seat to prevent the fluid from flowing. Electric Gate Valve,electric actuated gate valve,electric actuator for gate valve,motorised gate valve Description WUXI KVC-VALVE , https://www.wxkaiweixi.com
Electric gate valves are commonly used in industrial applications where precise control of the fluid flow is required. They are often used in pipelines, water treatment plants, oil and gas refineries, and chemical processing plants. The electric actuator allows for remote control of the valve, which can be operated from a control room or a computerized system. This makes it easier to monitor and adjust the flow of the fluid, which can improve efficiency and reduce the risk of leaks or spills.
On December 24th, the Liaoning Smart Grid Dispatching Support System made a significant upgrade by switching its online safety and stability analysis data source from local Liaoning grid data to the entire Northeast Power Grid network data. This change allows real-time stability analysis to detect and warn about anomalies in the local grid caused by faults outside of Liaoning’s territory. This move represents a major breakthrough in the online security and stability management of the Liaoning Power Grid.
Liaoning Power Grid is a typical receiving-end grid, making it highly sensitive to external disturbances. According to historical data, in 2011, Liaoning received 45.5 billion kWh of electricity through inter-provincial transmission lines, accounting for nearly 25% of the province's total electricity consumption. During the 12th Five-Year Plan period, as power grid construction accelerated, the grid structure underwent rapid changes, leading to evolving weak points and potential stability issues. Increased inter-provincial power exchanges also brought new challenges, such as more complex fault patterns and tighter system interconnections.
According to officials at the Liaoning Electric Power Dispatch and Control Center, this situation highlights the importance of monitoring and addressing local grid abnormalities caused by out-of-area faults. To tackle these challenges, Liaoning Power Corporation developed an advanced online safety and stability analysis system. It integrates static, transient, dynamic, voltage, frequency, and small-interference stability calculations, along with short-circuit current analysis. This system provides comprehensive early warning and coordinated preventive control, enabling multi-dimensional and real-time analysis of grid vulnerabilities.
After transitioning the data source to the full Northeast Power Grid network, the Liaoning Dispatch Center overcame previous limitations where equipment outside the region could not be included in online stability analysis. This enhancement improved data accuracy and the reliability of real-time decision-making. The system now supports real-time safety warnings, enhances operator efficiency, and helps prevent or minimize potential accidents, significantly improving grid resilience and operational safety.