ALSTOM LFCB102差动继电器

1.产 品 资 料 介 绍：

中文资料：

ALSTOM LFCB102差动继电器是一种用于电力系统的保护设备，通常用于检测和保护电力系统中的差动故障。差动继电器通过比较两个或多个电流信号，检测是否存在差动电流，从而判断电力系统中是否存在故障，如相间短路或接地故障。

主要特点：

1. 差动保护：通过比较来自不同电流互感器的电流，检测电力系统中的差动电流，以发现故障。
2. 高灵敏度：能够检测微小的差动电流，及时响应故障情况。
3. 快速响应：故障检测后能迅速触发保护动作，切断故障电路，防止事故扩大。
4. 自诊断功能：具备自检功能，能够监测自身工作状态，确保可靠运行。
5. 多种保护模式：支持多种差动保护模式，如相间差动保护、接地差动保护等，适应不同应用场景。

应用领域：

1. 发电厂：用于发电机差动保护，确保发电设备在故障情况下得到及时保护。
2. 变电站：用于变压器差动保护，保护变压器免受内部故障影响。
3. 输电线路：用于输电线路差动保护，确保输电线路的安全运行。
4. 工业设施：用于大型工业设施的电力保护系统，保障电力系统的稳定和安全。
5. 配电网：用于配电变压器和配电线路的差动保护，防止局部故障扩展。

具体功能：

1. 电流比较：实时比较不同测量点的电流值，检测差动电流。
2. 故障判断：根据设定的差动电流阈值，判断是否存在故障。
3. 动作指令：在检测到故障后，发出保护动作指令，切断故障电路。
4. 报警功能：在检测到故障或异常情况时，发出报警信号，提示操作人员检查系统。
5. 数据记录：记录故障事件和运行状态，便于故障分析和维护管理。

使用注意事项：

1. 正确接线：确保电流互感器和继电器的接线正确，以避免误动作。
2. 定期测试：定期对差动继电器进行测试，确保其灵敏度和可靠性。
3. 环境要求：安装环境应符合产品说明书的要求，避免潮湿、腐蚀性气体等对设备的不利影响。
4. 参数设置：根据实际应用场景，合理设置差动电流阈值和保护模式。

英文资料：

ALSTOM LFCB102 differential relay is a protective device used in power systems, typically for detecting and protecting differential faults in power systems. Differential relays compare two or more current signals to detect the presence of differential current, thereby determining whether there is a fault in the power system, such as phase to phase short circuit or ground fault.

Main features:

Differential protection: By comparing the currents from different current transformers, the differential current in the power system is detected to detect faults.

High sensitivity: able to detect small differential currents and respond promptly to fault situations.

Quick response: After fault detection, it can quickly trigger protective actions, cut off the faulty circuit, and prevent the accident from expanding.

Self diagnostic function: equipped with self checking function, able to monitor its own working status and ensure reliable operation.

Multiple protection modes: Supports multiple differential protection modes, such as phase to phase differential protection, grounding differential protection, etc., to adapt to different application scenarios.

Application areas:

Power plant: used for differential protection of generators to ensure timely protection of power generation equipment in case of faults.

Substation: Used for transformer differential protection, protecting transformers from internal faults.

Transmission line: used for differential protection of transmission lines to ensure the safe operation of transmission lines.

Industrial facilities: Power protection systems used in large industrial facilities to ensure the stability and safety of the power system.

Distribution network: used for differential protection of distribution transformers and distribution lines to prevent local fault propagation.

Specific functions:

Current comparison: Real time comparison of current values at different measurement points to detect differential current.

Fault diagnosis: Determine whether there is a fault based on the set differential current threshold.

Action command: Upon detecting a fault, issue a protective action command to cut off the faulty circuit.

Alarm function: When a fault or abnormal situation is detected, an alarm signal is issued to prompt the operator to check the system.

Data recording: Record fault events and operating status for easy fault analysis and maintenance management.

Precautions for use:

Correct wiring: Ensure that the wiring of the current transformer and relay is correct to avoid misoperation.

Regular testing: Regularly test differential relays to ensure their sensitivity and reliability.

Environmental requirements: The installation environment should comply with the requirements of the product manual, avoiding adverse effects of moisture, corrosive gases, etc. on the equipment.

Parameter setting: Reasonably set the differential current threshold and protection mode according to the actual application scenario.

2.产      品      展      示      

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品牌：ALSTOM

型号：LFCB102差动继电器

质保：一年

成色：全新/二手

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