| 1. | Unbalanced three - phase load
不平衡三相负载 |
| 2. | Symmetrical three - phase load
对称三相负载 |
| 3. | The three - phase circuit that has balanced three - phase sources , balanced ( equal ) three - phase loads and balanced three - phase line - impedances is called a balanced three - phase system
一个具有对称三相电源，对称三相负载和对称三相线路阻抗的三相电路被称为三相对称电路。 |
| 4. | The null point shift in three - phase load is studied by using the equation of circumference and an arc and the changing law of the null point shift is discussed qualitatively
运用圆弧方程和圆图分析了三相负载中点位移的特性，定性讨论了中点位移的变化规律，这对加深理解中点位移和实际应用有参考意义 |
| 5. | This paper analyses the reason that neutral voltage is not zero when linear three - phase system load connects to three - phase three - wire system source in y connection . the resolution is also given
摘要分析了线性三相负载y联接在三相三线制电源时，中点电位不为零的原因，并通过计算进行了验证，给出了解决的方法。 |
| 6. | Three - phase four - wire apf with one - cycle control need not sense the three phase load currents or the three phase voltages , need not calculate the harmonics and reactive current components , as well as the use of any multipliers
单周控制三相四线制有源电力滤波器不需要检测三相负载电流和三相电源电压，不需要检测谐波和无功电流，也不需要使用任何乘法器。 |
| 7. | This paper introduces the three situations where the asymmetry of three - phase current takes place and proposes the calculation methods of the annexed line losses and of loss reduction when the addition of the three - phase current load is not equal to zero because of the asymmetry of the three phase load
摘要阐述了三相不对称电流的三种情况，并提出了因三相负载不对称而引起的三相电流相量之和不为零时的附加线损的计算方法及降损措施。 |
