本文件规定了标称电压1 000 V及以下交流电力系统用低压功率因数校正装置的标志、使用条件、产品分类、设计、安装、运行和安全导则、设计验证和例行试验等。
本文件适用于交流频率50 Hz、额定电压1 000 V及以下调整电网功率因数的低压功率因数校正装置,装置内部有校正功率因数用的低压交流并联电容器组,其可配备能够连通或断开电容器组的主电路的开关设备和控制设备以校正功率因数。如下文无另行说明,低压功率因数校正装置符合GB/T 7251.1—2013和GB/T 7251.12—2013的要求。
交流频率50 Hz、额定电压1 140 V的低压功率因数校正装置参考本文件。
定价: 65元 / 折扣价: 56 元 加购物车
This part of GB/T 22264 specifies the terms and definitions,description,classification and compliance,reference conditions and intrinsic errors,nominal range of use and variations,requirements,packaging,storage and transport,information,general markings and symbols,and test rules of fixed digital meters and power factor meters.
This part is applicable to fixed digital display phase meters and power factor meters,and is also applicable to the digital display part of dual analog-digital display phase meters and power factor meters.
This part is not applicable to:
—phase meters and power factor meters only have direct acting analogue indicating;
—portable digital display phase meters and power factor meters;
—special purpose instruments which are covered by their own national standards.
定价: 216元 / 折扣价: 184 元 加购物车