网站转让

电流互感器穿线接反会使公用线电流增大为原来的3倍，如不及时改正，公共线将会因过载而烧断，计量装置计量的电能比实际电能更少如果三相电流的极性都接反了，那么电流变成了负序相位，电流和电压的相位反了180°，得到了有功、无功电量肯定产生误差，建议尽快恢复正确的接线。至于是偏少还是偏多，需要经过向量实测才能计算。 但是电流互感器为下进线时极性要反接因为下进线相当于初级反接了，所以输出也要反接，不然电度表会翻转或功率因数表测量错误。 Current transformer thread joint reaction can make public line current increases 3 times as great, if not timely correction, public line will burn out due to overload, the electrical energy metering device measuring less than the actual power if three phase current polarity is backwards, then turned into a negative sequence current phase, the phase current and voltage against the 180 °, the active and reactive power is sure to produce error, suggest that as soon as possible to restore the correct wiring. Whether it is less or less, you need to be measured by the vector. But under the current transformer is into line when to reverse polarity because the line is equal to the primary reverse connection, so the output also to reverse connection, or meter will flip or power factor meter measurement error.