ABB DSAX110A 3BSE018291R1变频器
•VT RATIO：输入电压互感器比率。所有三个电压输入必须具有相同的额定值。例如，如果使用4200:120 VT，VT RATIO应为4200/120=35.0:1。如果VT接线设置为3线直接、4线直接或单相直接，则该设置点不可见。•VT标称次级电压：输入VT的标称次级电压。如果电压输入直接连接，则输入将施加到PQM的标称系统电压。如果VT接线设置为3线直接、4线直接或单相直接，则该设置点不可见。该值用于缩放分配给显示电压的模拟输出，以标称值的百分比表示。
• VT RATIO: Enter the voltage transformer ratio. All three voltage inputs must be of the same rating. For example, if 4200:120 VTs are used, the VT RATIO should be 4200 /120 = 35.0:1. This setpoint is not visible if VT WIRING is set to 3 WIRE DIRECT, 4 WIRE DIRECT, or SINGLE PHASE DIRECT. • VT NOMINAL SECONDARY VOLTAGE: Enter the nominal secondary of the VTs. If the voltage inputs are directly connected, enter the nominal system voltage that will be applied to the PQM. This setpoint is not visible if the VT WIRING is set to 3 WIRE DIRECT, 4 WIRE DIRECT, or SINGLE PHASE DIRECT. This value is used to scale an analog output that is assigned to display voltage as a percentage of nominal.
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