LY-1A型电压继电器产品介绍（中文）
LY-1A型电压继电器是一款专为电力系统监测与保护设计的通用型控制元件，适用于交直流电路中电压参数的实时监控与逻辑控制。产品采用模块化设计理念，在电路过压、欠压、失压等异常工况下可实现快速响应，为电力设备提供有效保护，同时支持系统自动化控制功能的实现。
该继电器核心部件采用高精度电磁感应机构与低功耗电子电路相结合的技术方案，具备动作值调节范围宽、响应灵敏度高等特点。动作电压可在额定值的30%-130%范围内连续调节，满足不同应用场景的定制化需求。产品内置多重抗干扰设计，能够有效抑制谐波干扰和瞬时脉冲，确保在复杂电磁环境下的测量稳定性。触点系统采用银合金材质，搭配双断点结构设计，显著提升电气寿命，常规负载条件下机械寿命可达10万次以上。
LY-1A型电压继电器适用于0.4kV-35kV电压等级的配电系统，可广泛应用于发电厂、变电站、轨道交通、工业自动化等领域的电压保护回路。典型应用包括：变压器有载调压控制、无功补偿装置投切管理、重要负荷电压监测等。产品提供多种安装方式选择，支持面板固定式与导轨式安装，适配标准DIN控制柜系统。壳体采用阻燃工程塑料材质，符合工业设备安全防护要求。
产品优势主要体现在三个方面：其一，动作时间参数经过优化设计，全量程范围内响应时间不超过20ms，满足快速保护需求；其二，配备透明观察窗与机械动作指示器，便于现场运维人员直观掌握设备状态；其三，宽温型设计允许在-25℃至+55℃环境温度下稳定工作，适应多种气候条件。本产品遵循严谨的工艺标准，出厂前经过完整的动作特性测试与老化试验，确保长期运行的可靠性。
LY-1A Voltage Relay Product Introduction (English)
The LY-1A Voltage Relay is a versatile control component specifically designed for power system monitoring and protection, capable of real-time voltage parameter detection and logic control in both AC/DC circuits. Featuring modular design principles, the relay delivers rapid response to abnormal voltage conditions including overvoltage, undervoltage, and power loss scenarios, providing effective protection for electrical equipment while enabling automated system control functions.
Integrating precision electromagnetic induction mechanisms with low-power electronic circuitry, this relay offers wide adjustment range and high sensitivity. The operating voltage can be continuously adjusted within 30%-130% of rated value to meet customized application requirements. With built-in multi-layer anti-interference design, the product effectively suppresses harmonic interference and transient pulses, ensuring measurement stability in complex electromagnetic environments. The contact system employs silver alloy material combined with double-break structure design, extending electrical lifespan to over 100,000 mechanical operations under normal load conditions.
Applicable to 0.4kV-35kV distribution systems, the LY-1A relay is widely used in voltage protection circuits for power plants, substations, rail transit systems, and industrial automation facilities. Typical applications include on-load tap changer control, reactive power compensation device switching management, and critical load voltage monitoring. Multiple installation options are available, supporting both panel-mounted and DIN rail-mounted configurations compatible with standard control cabinet systems. The flame-retardant engineering plastic housing meets industrial safety protection standards.
Key product advantages include: 1) Optimized operating time design ensures response within 20ms across full range for rapid protection; 2) Transparent observation window with mechanical position indicator enables intuitive status monitoring for maintenance personnel; 3) Wide-temperature design maintains stable operation from -25℃ to +55℃, adaptable to diverse climatic conditions. Manufactured under strict quality control, each unit undergoes comprehensive operational characteristic testing and aging experiments prior to delivery, guaranteeing long-term operational reliability.
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