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1)装置面板上有128*64蓝色液晶显示屏;4个键盘及6个指示灯。正常运行时,装置运行灯闪烁(绿色),暂态灯(黄色),谐波超限灯(黄色),通信灯(黄色),备用灯(黄色),告警灯(红色)则用来反映当时系统及装置的状况; 2)装置软件配置了 WEB 服务器,只需要通过通用的浏览器程序(如:IE、360 浏览器、苹果的 safari 浏览器等)即可对装置内信息进行查看、设置等操作,完全可以替代常规的人机操作方式或专有的操作软件。通过 RJ45 以太网连接。将 PC 或笔记本电脑通过交换机或与装置以太网口直联,设置计算机的 IP 地址与装置在同一个子网内,即可实现 WEB 访问; 3)大容量的存储空间,满足电能质量监测装置对数据存储的要求,实时数据掉电不丢失;  4) 体积小巧,满足多种协议,具备监测电压电流,谐波,闪变,电能,不平衡,波动和暂态稳态事件功能;
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yl23455永利HYPQM6000电能质量在线监测装置,该电能质量在线监测装置精度满足国家A级标准,符合江苏省入网要求 。电压测量精度为0.1%,可以捕捉故障现场的谐波、电压波动、闪变、功率和三相不平衡等常见的电能质量问题,常用于电力故障分析、供电质量评估和设备运行状态监测。
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电机属于非线性负载,而且电机启动的时候需要的扭矩比静扭矩大,也就说需要更多的电流,瞬时电流增大会导致电压的降低,出现电压暂降,在电机运行期间还会导致谐波增加的电能质量问题。yl23455永利的PQM6000系列电能质量在线监测装置可以清晰定位电能质量问题,找出根本原因。
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国家标准规定,电能质量的指标主要包含频率,电压,不平衡,波动,闪变,谐波。yl23455永利PQM6000系列该电能质量在线监测装置精度满足国家 A级标准,符合江苏省入网要求,对电能质量进行有效监测。
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1. 在测量过程中一定不要接触测试线的金属部分,以避免被电击伤。
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电能质量在线监测装置目标应用为电力系统中、低压系统或者工矿企业中、低压配电系统的集中式电能质量监测装置,采用集中式方案,可大大降低系统的造价,具有较好的性价比。
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yl23455永利HYDY3电压监测仪,测量精度为0.2%,主要监测电压大小,电压的相关稳态和暂态事件,不能测量电流,整个行业的电压监测仪都不支持电流测量。 目前电压监测仪基本都是依靠GPRS通信的,简单的说是插入SIM卡,比如有联通,移动或者电信,一般电信看应用较为广泛。电压监测仪可支持即插即用,提供wifi获取数据方式,在对线路末端的供电电压状态实现非常好的监控。
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电能质量是指电力系统中电能的质量。理想的电能应该是完美对称的正弦波。一些因素会使波形偏离对称正弦,由此便产生了电能质量问题。
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随着社会的进步,在很多行业里面,生产工业的自动化程度越来越高,这个高度自动化的生产线受电能质量的影响程度也越来越大,这些行业包括汽车、化工、冶金、精*制造、半导体、纺织甚至食品加工等等。促使电能质量事件 变得更加敏感,电力设施也变得更加分散,造成了电能质量问题的占比会逐渐增加。对于设施管理人员和工程师来说,了解和管理电力系统基础设施对于确保生产的可靠性、优化设备性能和控制不断上升的能源成本至关重要。
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谐波是指频率为基波频率整数倍的一种正弦波。它是由于电网存在非线性元件和非线性负载,使得电网的电压或电流的波形不仅仅是频率为50Hz的正弦波(又称基波),还含有与基波频率(50Hz)成整数倍和分数倍频率的其他正弦波。这些正弦波就称为电网的谐波。其中频率高于基波频率的谐波叫高次谐波。对诸波频率为基波频率的分数倍时,称为分数谐波或间谐波,电力系统中的谐波主要是高次谐波。
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电力系统存在着大量非线性、冲击性和波动性负荷,比如大功率的变频设备及拖动装置、电气化铁路、电化工业的整流设备、感应加热炉,电弧炉等,这些负荷造成了电网发生波形畸变(谐波)、电压波动、闪变、三相不平衡、非对称性,使得电网电能质量的严重降低。同时,基于计算机,微处理器控制的精*电子仪器在国民经济企业中大量使用,对供电质量的敏感程度越来越高,对电能质量提出了更高的要求,从而使电能质量问题及其解决措施逐渐成为研究的热点。要对电网的电能质量进行改善,首先要对电能质量做出精*的检测和分析,测量电网的电能质量水平,并分析和判断造成各种电能质量问题的原因,为电能质量的改善提供依据。   目前,国内外对电能质量的监测方式主要为在线监测。
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