描述
ABB TVOC-2-240是一款高性能电弧监测与保护系统，专为工业环境中低压和中压开关柜设计，旨在快速检测并响应电弧故障，保障人员和设备安全。以下是其核心功能、技术特点及应用领域的综合分析：
一、核心功能与技术特点
电弧快速检测与响应
-通过光学传感器检测电弧产生的光信号，响应时间仅需1毫秒，远快于传统保护设备（通常为30-50毫秒），可有效抑制电弧引发的火灾或爆炸风险。
-支持模块化扩展，单机最多连接30个光传感器，覆盖复杂开关柜布局。
高可靠性与安全认证
-SIL-2认证（IEC 61508/62061标准），功能安全等级符合EN ISO 13849-1 d级要求，硬件级安全功能确保误动作率极低。
-内置备用电源，支持0.2秒无电运行，确保断路器脱扣电路可靠动作。
模块化与灵活性
-基本单元支持1-10个光传感器输入，通过扩展模块可扩展至30个传感器，适用于不同规模的配电系统。
-支持电流感应单元（CSU）选配，可在强光干扰环境下（如日光）避免误触发，但会增加动作时间（2-8毫秒）。
二、系统组成与架构
电弧监测器（主机）
-集成3个IGBT高速脱扣触点、继电器及人机界面（HMI），支持DIN导轨或螺钉安装。
-HMI提供实时监控、脱扣日志记录及远程通信（Modbus RTU协议）功能。
光传感器与扩展模块
-光纤传感器（TVOC-2-DPx系列）预校准，无需人工配置，支持1-60米探测距离。
-扩展模块可增加传感器数量，同时包含独立HMI（可安装于柜门外部）。
电流感应单元（CSU）
-将电流信号转换为光信号传输，避免强光干扰，但需额外配置后备电源。
IS200TVIBH2BBB
IS200TVIBH2BBB
三、技术参数与环境适应性
电源电压：100-240 V AC或100-250 V DC，宽电压输入范围。
工作温度：-25℃至70℃，适应工业环境。
防护等级：IP20（主机），IP65（传感器）。
四、应用场景
电力系统：低压/中压开关柜、配电室，防止电弧引发的设备损坏。
工业领域：化工、制药、能源工厂，保障人员安全。
轨道交通：牵引变电所、接触网设备，避免电弧影响列车运行。
ABB TVOC-2-240 is a high-performance arc monitoring and protection system designed for low-voltage and medium-voltage switchgear in industrial environments.It is designed to quickly detect and respond to arc faults to ensure the safety of personnel and equipment.The following is a comprehensive analysis of its core functions,technical features and application areas:
I.Core functions and technical features
Rapid arc detection and response
-The optical signal generated by the arc is detected by an optical sensor,and the response time is only 1 millisecond,which is much faster than traditional protection devices(usually 30-50 milliseconds),which can effectively suppress the risk of fire or explosion caused by the arc.
-Support modular expansion,a single machine can connect up to 30 optical sensors to cover complex switchgear layouts.
High reliability and safety certification
-SIL-2 certification(IEC 61508/62061 standard),the functional safety level meets the requirements of EN ISO 13849-1 d level,and the hardware-level safety function ensures that the false operation rate is extremely low.
-Built-in backup power supply,supports 0.2 seconds of power-off operation,ensuring reliable operation of the circuit breaker tripping circuit.
Modularity and flexibility
-The basic unit supports 1-10 optical sensor inputs,which can be expanded to 30 sensors through expansion modules,suitable for distribution systems of different sizes.
-Supports optional current sensing unit(CSU),which can avoid false triggering in strong light interference environment(such as sunlight),but will increase the action time(2-8 milliseconds).
2.System composition and architecture
Arc monitor(host)
-Integrates 3 IGBT high-speed trip contacts,relays and human-machine interface(HMI),supports DIN rail or screw installation.
-HMI provides real-time monitoring,trip log recording and remote communication(Modbus RTU protocol)functions.
Optical sensor and expansion module
-Fiber optic sensor(TVOC-2-DPx series)is pre-calibrated,does not require manual configuration,and supports 1-60 meters detection distance.
-Expansion module can increase the number of sensors and includes independent HMI(can be installed outside the cabinet door).
Current sensing unit(CSU)
-Converts current signal into optical signal transmission to avoid strong light interference,but requires additional backup power supply.
3.Technical parameters and environmental adaptability
Power supply voltage:100-240 V AC or 100-250 V DC,wide voltage input range.
Working temperature:-25℃to 70℃,suitable for industrial environment.
Protection level:IP20(host),IP65(sensor).
4.Application scenarios
Power system:low voltage/medium voltage switchgear,distribution room,to prevent equipment damage caused by arc.
Industrial field:chemical,pharmaceutical,energy plants,to ensure personnel safety.
Railway transportation:traction substation,contact network equipment,to prevent arc from affecting train operation.
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