LG-11功率方向继电器产品介绍（中文版）
LG-11功率方向继电器是专为电力系统保护设计的重要控制元件，采用成熟的机电一体化技术方案，为电网运行提供可靠的功率方向判别功能。产品基于电磁感应原理，通过优化磁路结构和触点系统设计，可精准识别电力线路中功率传输方向，有效配合各类继电保护装置实现系统故障的快速隔离。
该装置内置高灵敏度的方向判别模块，通过特殊设计的相位比较电路，能够准确捕捉线路电压与电流的相位关系变化。当系统发生短路、逆功率等异常工况时，继电器可在10-15毫秒内完成方向判定，触发机构动作的响应偏差控制在±3%以内，确保保护系统的选择性动作。产品支持0.5A-10A宽范围电流输入和50-500V电压输入，配合可调节的动作阈值设定，可适配不同电压等级的输配电网络。
在结构设计方面，继电器采用模块化组装工艺，核心组件包含精密绕制的极化电磁系统、抗氧化银合金触点组以及耐冲击的摆臂机构。全封闭式外壳通过灌封工艺处理，内部元件防护等级达到IP54标准，可在-25℃至+70℃环境温度下稳定工作。特别设计的磁屏蔽结构能有效抑制外部磁场干扰，确保测量精度不受周边电磁环境影响。
产品适用于发电厂、变电站、工矿企业配电网等场景，可配合过流保护装置实现方向闭锁功能，有效防止保护误动作。人性化的透明观察窗设计便于运维人员现场查看触点状态，嵌入式安装结构和标准化接线端子满足不同机柜的装配需求。经过严苛的老化测试和环境试验验证，产品在潮湿、粉尘、振动等复杂工况下仍能保持稳定的动作特性。
LG-11 Power Direction Relay Product Introduction (English Version)
The LG-11 Power Direction Relay is a critical control component specifically engineered for power system protection. Utilizing a proven electromechanical integration technical solution, this device delivers reliable power direction discrimination capabilities for grid operations. Based on electromagnetic induction principles, the relay features optimized magnetic circuit configuration and contact system design to accurately identify power flow direction in electrical circuits, enabling rapid fault isolation in coordination with various protective devices.
Equipped with a high-sensitivity directional discrimination module, the relay employs specially designed phase comparison circuitry to precisely detect changes in the phase relationship between line voltage and current. During system abnormalities such as short circuits or reverse power flow, the device completes directional determination within 10-15 milliseconds, with actuation response deviation controlled within ±3%. The relay supports wide-range current input from 0.5A to 10A and voltage input from 50V to 500V, complemented by adjustable operation threshold settings to accommodate various voltage-level transmission and distribution networks.
The product incorporates modular assembly technology, comprising a precision-wound polarized electromagnetic system, oxidation-resistant silver alloy contact groups, and shock-absorbing armature mechanisms. The fully enclosed housing utilizes potting technology to achieve IP54 protection grade, ensuring reliable operation within ambient temperatures ranging from -25℃ to +70℃. A specially designed magnetic shielding structure effectively suppresses external electromagnetic interference, maintaining measurement accuracy in challenging electromagnetic environments.
This relay finds application in power plants, substations, industrial power distribution systems, and other scenarios where directional blocking functions are required in coordination with overcurrent protection devices. The user-friendly transparent observation window facilitates on-site contact status inspection by maintenance personnel, while the embedded mounting structure and standardized terminal blocks ensure compatibility with various control panel configurations. Rigorous aging tests and environmental trials confirm the product s stable operational characteristics under complex conditions including humidity, dust, and mechanical vibration.
