ABB REF541KM118AAAA 电机保护装置它采用数字信号处理技术,可以快速、准确地检测馈线故障,实现快速切除故障,保障电力系统的稳定运行。具有以下特点:智能馈线终端的结构:智能馈线终端一般由控制部分,数据处理部分,通信部分和电源部分组成。控制部分:对断路器的储能,合闸操作,分闸操作。数据处理:集成FTU,依靠FTU完成对数据的采集和处理。通信部分:集成通信模块,4G无线通讯,光纤通信等。电源部分:内置蓄电池或超级电容,供电电源包括AC/DC220,DC48.DC24等。上一个辅助节点是新的主节点,并接管程序的进—步执行。
馈线保护测控装置的作用馈线保护测控装置是电力系统中的一个重要保护设备,主要作用是在馈线发生短路、接地故障或其他异常情况时,快速切除故障,保护电力系统的稳定运行。它可以感应电力系统中的异常电流、电压信号,与事先设定的故障保护条件进行比较,当检测到故障时实现快速切断故障环节,防止故障向电网扩散。馈线保护测控装置的原理馈线保护测控装置的工作原理是基于安设在馈线上的电流、电压传感器,通过对故障信号的检测、测量、处理,进行故障的判断和快速切除。
ABB REF541KM118AAAA motor protection device adopts digital signal processing technology, which can quickly and accurately detect feeder faults, achieve rapid fault removal, and ensure the stable operation of the power system. It has the following characteristics: Structure of intelligent feeder terminal: Intelligent feeder terminal generally consists of control part, data processing part, communication part, and power supply part. Control part: Energy storage, closing operation, and opening operation of circuit breakers. Data processing: Integrated FTU, relying on FTU to complete data collection and processing. Communication part: integrated communication module, 4G wireless communication, fiber optic communication, etc. Power supply: Built in battery or supercapacitor, power supply includes AC/DC220, DC48.DC24, etc. The previous auxiliary node is the new master node and takes over the further execution of the program.
The function of the feeder protection measurement and control device is an important protective device in the power system. Its main function is to quickly remove faults and protect the stable operation of the power system in the event of a short circuit, grounding fault, or other abnormal situation in the feeder. It can sense abnormal current and voltage signals in the power system, compare them with pre-set fault protection conditions, and quickly cut off the fault link when a fault is detected, preventing the fault from spreading to the power grid. The working principle of the feeder protection measurement and control device is based on the current and voltage sensors installed on the feeder, which detect, measure, and process fault signals to determine and quickly remove faults.
PLC控制器本身的硬件采用积木式结构,各厂家产品结构大同小异。以日本欧姆龙C200HE为例,为总线模板框式结构,基本框架(CPU母板)上装有CPU模板,其它槽位装有I/O模板;如果I/O模板多时,可由CPU母板经I/O扩展电缆连接I/O扩展母板,在其上装I/O模板;另一种方法是配备远程I/O从站等。这些都说明了PLC厂家将硬件各部件均向用户开发,便于用户选用,配置成规模不等的PLC,而且这种硬件配置的开放性,为制造商、分销商(代理商)、系统集成商、最终用户带来很多方便,为营销供应链带来很大便利,这是一大成功经验。
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