GE DS200TCQCG1BKG溢流板
将显示40个字符的用户定义消息。使用键盘或通过串行端口使用EnerVista PQM设置对消息进行编程。有关编程详细信息，请参见S1 PQM SETUP\PROGRAMMABLE MESSAGE。Ia/Ib/Ic波峰因数：波峰因数描述了在保持系统满额定值的同时，负载电流与纯正弦波的变化程度。完全线性负载（纯正弦波）的波峰因数为（），即正弦波的峰值与其rms值之比。通常，波峰因数的范围可以从到2.5。Ia/Ib/Ic THDF：变压器谐波降额因数（THDF），也称为CBEMA因数，定义为纯正弦波的波峰因数（）除以测量的波峰因数。该方法适用于低阶谐波占主导地位的情况。在存在高阶谐波的情况下，可能需要使用更精确的方法（K因子）来计算降额因子。该方法也未考虑与变压器额定涡流相关的损耗
A 40-character user defined message is displayed. The message is programmed using the keypad or via the serial port using EnerVista PQM Setup. See S1 PQM SETUP \ PROGRAMMABLE MESSAGE for programming details.Ia / Ib / Ic CREST FACTOR: The crest factor describes how much the load current can vary from a pure sine wave while maintaining the system’s full rating. A completely linear load (pure sine wave) has a crest factor of ( ), which is the ratio of the peak value of sine wave to its rms value. Typically, the crest factor can range from to 2.5. Ia/Ib/Ic THDF: Transformer Harmonic Derating Factor (THDF), also known as CBEMA factor, is defined as the crest factor of a pure sine wave ( ) divided by the measured crest factor. This method is useful in cases where lower order harmonics are dominant. In a case where higher order harmonics are present, it may be necessary to use a more precise method (K-factor) of calculating the derating factor. This method also does not take into consideration the losses associated with rated eddy current in the transformer
