要检查是不是线路比较细，导线电阻比较大，导致线路末端电压低，这需要更换大截面导线来解决;对这种情况，是电力公司资产的线路，更换导线的费用不需要大家出，但属于用户自己的线路，其改造费用需要自己筹措。另外一种情况是变压器容量小，一般来说，变压器等资产应是电力公司的，更换变压器需要电力公司来更换，这种情况是不需要费用的，但是“电老虎”名不虚传，你一般胳膊扭不过大腿的了，所以最终还是要自己想办法。
一、除了把进来的电线加粗，还要检查是不是用电设备功率因数比较低，造成增大了线路压降大引起的。如果是功率因素问题，进行无功补偿就好了。
二、还可以对一些设备进行节能改造，比如一些风机水泵装变频器，更换效率高点的电机等等。
三、安装一种三相全自动补偿式电力稳压器，这种东西类似一种自动的自偶可调变压器器了，不过价格应该不便宜，而且如果供电局供过来的功率不足，你加了这个装置，估计隔壁家工厂的电压就会更加低了。
稳压器由补偿电路、电压检测电路、回中电炉、伺服电机控制电路及减速传动结构，主回路开关操作电路、电压、电流测量及保护电路组成。
电压补偿电路由接触调压器T2与补偿变压器T1组成。接触调压器一次连接在稳压器的输出端，二次接补偿变压器的一次线圈，补偿变压器二次线圈串联在主回路中，不计算补偿变压器的阻抗压降：U2=U1±Uc(U2—稳压器输出相电压;U1—稳压器输入相电压;Uc—稳压器相补偿电压)。
当输入相电压U1改变△U1时，若补偿电压Uc相应改变△Uc且△U1=△Uc，则输出相电压U2便可保持不变。补偿电压Uc的调节是根据输出电压的变化，由电压检测单元给出信号控制伺服电机转动，经减速及传动机构带动接触调压器上的电刷滑动，调节接触调压器的二次电压来改变补偿电压，实现自动保持输出的电压稳定。
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