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The K-7-1 Phase Sequence Indicator indicates the order of succession in time of the different voltage peaks of a multi-phase supply. The K-7-1 is used in connection with the making of three-phase circuit installations or alterations, and replacement installations of motors and generators. It can be used for making continuity tests of circuits of poly-phase systems. It's also valuable in making connections of power-factor meters, voltampere meters, watt and watthour meters and relays.
Phase Sequence Indicator Features
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Voltage range from 60-600V
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Only 21 ounces, the K-7-1 is lightweight and easy to carry
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Indicates the phase sequence by the direction of the rotor disc
HD Electric K-7-1 相序指示器
K-7-1 相序指示器指示多相电源的不同电压峰值在时间上的连续顺序。 K-7-1 用于三相电路安装或改造，以及电动机和发电机的更换安装。 可用于多相系统电路的连续性测试。 在连接功率因数表、伏安表、瓦特和瓦时计和继电器方面也很有价值。
相序指示器功能
电压范围 60-600V
K-7-1 仅重 21 盎司，重量轻且易于携带
通过转子盘的方向指示相序
