SAM3.0 监测器内安装的避雷器全电流和谐波法阻性电流模拟测试电路

Description

SAM3.0 监测器内安装的避雷器全电流和谐波法阻性电流模拟测试电路

ABB SAM3.0是一种避雷器监测系统，用于测量避雷器的工作电流并记录放电事件。 它还将发生的浪涌电流脉冲分为三类，并使用时间和日期信息（时间戳）保存过电压事件。 SAM 3.0由一个可选择电缆长度的电流传感器和一个可与避雷器分开安装的显示设备组成。

避雷器监测系统是一种用于监测避雷器运行状态的系统。它通过实时监测避雷器的泄漏电流、阻性电流、放电次数和放电时间等参数，实现对避雷器运行工况的实时有效监测。

避雷器监测系统通常由智能型避雷器计数器、监测器内安装的避雷器全电流和谐波法阻性电流模拟测试电路、单片机A/D转换系统等组成。智能型避雷器计数器利用避雷器泄漏电流充电功能，通过无线通信模块，SAM3.0将避雷器的泄漏电流、阻性电流、放电次数和放电时间，无线远传给上级接收装置。从而实现金属氧化物避雷器运行数据上传，对避雷器的运行工况进行实时有效的监测，提高运维工作效率，增强输变电设备智能化，网络化；为提高电力设备自动化水平积累经验，提高了电力系统运行实时监测水平，降低管理成本。

根据不同的应用场合，SAM3.0避雷器监测系统可分为变电站传统模式、变电站泛在电力物联网模式、输电线路泛在电力物联网模式三种应用场景模式。

总的来说，避雷器监测系统能够实时监测避雷器的运行状态，为电力系统的安全稳定运行提供保障。

SAM3.0 监测器内安装的避雷器全电流和谐波法阻性电流模拟测试电路

ABB SAM3.0 is a arrester monitoring system that measures the operating current of the arrester and records discharge events. It also classifies the inrush current pulses that occur into three categories and saves overvoltage events using time and date information (timestamps). SAM 3.0 consists of a current sensor with a selectable cable length and a display device that can be installed separately from the arrester.

Arrester monitoring system is a system used to monitor the running state of arrester. By monitoring the leakage current, resistive current, discharge times and discharge time of arrester in real time, it can effectively monitor the running condition of arrester in real time.

Arrester monitoring system is usually composed of intelligent arrester counter, arrester full current and harmonic resistance current simulation test circuit installed in the monitor, MCU A/D conversion system and so on. The intelligent arrester counter uses the arrester leakage current charging function. Through the wireless communication module, SAM3.0 wirelessly transmits the leakage current, resistance current, discharge times and discharge time of the arrester to the upper receiving device. Thus, the operation data of metal oxide arrester can be uploaded, the operation conditions of arrester can be monitored in real time and effectively, the operation and maintenance efficiency can be improved, and the transmission and transformation equipment can be enhanced intelligentized and networked. In order to improve the automation level of power equipment, the experience is accumulated, the real-time monitoring level of power system operation is improved, and the management cost is reduced.

According to different application occasions, SAM3.0 arrester monitoring system can be divided into three application scenario modes: substation traditional mode, substation ubiquitous power Internet of Things mode and transmission line ubiquitous power Internet of Things mode.

In general, the arrester monitoring system can monitor the running state of the arrester in real time, and provide guarantee for the safe and stable operation of the power system.