| 1. | Negative sequence inverse time overcurrent protection 负序反时限过流保护装置 |
| 2. | The negative sequence current of impedance - matching balance transformer 阻抗匹配平衡变压器的负序电流 |
| 3. | Positive sequence impedance 负序阻抗 |
| 4. | This thesis proposed a real - time detection method for fundamental negative - and positive - sequence based on space vector 本文提出了一种基于空间矢量概念的基波正序、负序分量实时提取新方法。 |
| 5. | At present , the electrical railway traction load in our country has great influence on power factor , negative sequence and hypo _ harmonics 电力牵引负荷对电力系统的影响主要反映在功率因数、负序及高次谐波。 |
| 6. | Harmonics , reactive power , voltage flicker and negative - sequence current of power grids can affect the power quality and harm the power equipment badly 摘要电网中存在谐波、无功、电压闪变及负序电流等问题,严重影响电能质量,危害电力设备。 |
| 7. | The transient simulation of stator winding inter - turn short circuit fault has been completed successfully based on the multi - loop mathematical model 基于神经网络技术,提出了以定子负序导纳平均值作为故障特征量的异步电动机定子绕组匝间短路故障检测方法。 |
| 8. | This paper analyses the test results gained by mixed simulation , and validates the reliability of the use of transient zero current and negative current in fault identifying 文中讨论了负序电流的分布及提取问题,试验数据同样表明负序电流用于单相接地故障识别是可行性的。 |
| 9. | On the basis of former research , drawing software neharpal . 0 is developed to analyze the negative phase sequence and harmonic of electric traction loads . neharpal 在既有成果的基础上,开发了一套主要应用于电气化铁道牵引负荷负序、谐波渗透分析的电网图形系统仿真软件neharpa1 . 0 。 |
| 10. | So it can be used for single - phase fault identifying . this paper discusses the size of the negative current and the method of analyzing it . numeral simulation shows the feasibility of it 由于负序电流在故障线路和非故障线路上具有显著差异,故本文也研究了将负序电流作为故障特征量的可行性。 |