推荐回答(2个)
智能型互感器校验仪指标:
1.环境条件:
温 度:(5~40)°C 相对湿度:<80%(25°C)
海拨高度:<2500m 电源频率:50HZ ±0.5Hz
2.测量范围同相分量(%):0.0001~19.99 分辨率:0.0001
正交分量(分):0.001~600 分辨率:0.001
阻抗(W):0.0001~5.99 分辨率:0.0001
导纳(ms):0.0001~5.99 分辨率:0.0001
产品概述
◆EDHG—III型中文大液晶智能型互感器校验仪,是一种新颖的自动化检测仪器,它运用先进的电子技术,对互感器的误差信号直接采极分解,并经适当运算后,将互感器的标定点、同相误差、正交误差同时数字量显示出来。仪器操作简便,读数直观,测量迅速,能降低电能消耗,减轻劳动强度;体积小,重量轻,便于携带和现场测试;仪器能在5%定额工作电流(电压)下进行测试;如用户要求本厂也能生产检测S级电流互感器和二次电压为100/3V的电压互感器校验仪,此时仪器能在1%额定工作电流(电压)下测量互感器的误差;在检测过程中仪器能方便地随时进行自校,以监视仪器的精度;关键元器件使用进口组件,质量稳定可靠,广泛用于计量、供电等部门和互感器生产厂家,是开展互感器检测的理想仪器。
◆EDHG—III型中文大液晶智能型互感器校验仪,用于检定准确度级次0.01级至10级,额定二次电流为5A、1A和额定二次电压为100V、100/ V、150V(100/3V、220V)的电流互感器和电压互感器其测量结果直接数字显示,并可为用户配上RSC232接口,方便地与计算机相联。
产品特点
◆在检定互感器时,仪器可以随时测量被检互感器次级回路的阻抗或导纳的有功分量和无功分量。
◆在检定互感器时,仪器能自动指示极性。当极性错误时,仪器能自动切断差流(差压)回路,确保仪器输入电路安全。并发出声光报警,提示检定人员注意。
◆仪器可以作为直角坐标系交流电位计使用,测量交流小电流或交流小电压。
◆仪器可以与隔离PT及操作箱一起测量电压互感器的二次压降。
◆在检定互感器时,仪器可以用标准电流互感器或标准电压互感器作标准,也可以用双级电流互感器,双级电压互感器或感应分压器作比例标准。
◆仪器可以用整体法或元件法进行周期检定。
◆显示方法:320×240中文大液晶屏.
◆存储功能:PT、CT数据各40组,能对CT的1%点的误差数据进行存储;
◆联机功能:可以和计算机及相应软件联机;
◆打印功能:实时查询打印;
技术指标
◆测量对象:PT、CT、Y、Z
◆工作范围:电流1-149%(注:可校S级互感器)电压5-149%
◆测量范围:
◆同相分量(%):0.0001-19.99 分辩率:0.0001
◆正交分量(分):0.001-600 分辨率:0.001
◆阻 抗(Ω):0.0001-5.99 分辨率:0.0001
◆导 纳(ms):0.0001-5.99 分辨率:0.0001
◆测量误差:
◆同相分量:△X=±(X×2%+Y×2%±2个字)
◆正交分量:△Y=±(X×2%+Y×2%±5个字)
“X”、“Y”---仪器的显示器
“2个字”、“5个字”---仪器的量化误差
◆工作范围:
◆电流:1%-149%In(In=5A)
5%-199% In(In=1A)
◆电压:5%-149% Un
(Un=100V、150V、100/√3V、100/3V)
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