GE DS200TCQBG1A扩展器
EnerVista PQM设置软件提供了计算降额因数的K因数方法，该方法按单位定义如下：I h=谐波h时的rms电流，单位为额定rms负载电流PHASE a/B/C/N current THD：这些信息显示了每个电流输入的计算总谐波失真。电压Van/Vbn/Vcn/Vab/Vbc THD：这些信息显示每个电压输入的计算总谐波失真。当设定点S2 SYSTEM SETUP（系统设置）\ CURRENT/VOLTAGE CONFIGURATION（电流/电压配置）\ VT WILING（VT接线）存储为WYE（所见）时，将出现相间电压。当设定点S2 SYSTEM SETUP（系统设置）\ CURRENT/VOLTAGE CONFIGURATION（电流/电压配置）\VT WILING（VT接线）存储为DELTA（Δ。Ia/Ib/Ic/In MAX THD：显示每个电流输入的最大总谐波值以及出现最大值的时间和日期。S1 PQM SETUP\CLEAR DATA\CLEAR MAX THD VALUES（S1 PQM设置\清除数据\清除最大THD值）设定值清除该值。
he EnerVista PQM Setup software provides the K-factor method of calculating the derating factor, which is defined on a per unit basis as follows:where: I h = rms current at harmonic h, in per unit of rated rms load current PHASE A/B/C/N CURRENT THD: These messages display the calculated total harmonic distortion for each current input. VOLTAGE Van/Vbn/Vcn/Vab/Vbc THD: These messages display the calculated total harmonic distortion for each voltage input. Phase to neutral voltages will appear when the setpoint S2 SYSTEM SETUP \ CURRENT/VOLTAGE CONFIGURATION \ VT WIRING is stored as WYE. Line to line voltages will appear when the setpoint S2 SYSTEM SETUP \ CURRENT/VOLTAGE CONFIGURATION \ VT WIRING is stored as DELTA. Ia/Ib/Ic/In MAX THD: The maximum total harmonic value for each current input and the time and date which the maximum value occurred are displayed. The S1 PQM SETUP \ CLEAR DATA \ CLEAR MAX THD VALUES setpoint clears this value.
