| 1. | Mains operated electronic and related apparatus for household and similar use
电网电源供电的家用和类似用途的电子设备 |
| 2. | Mains operated electronic and related apparatus for household and similar general use
电网电源供电、供家庭使用及作一般用途的电子和相关器具； |
| 3. | Mains - operated electronic and related apparatus for household and similar general use
电网电源供电、供家庭用及作相类一般用途的电子设备及相关器具； |
| 4. | Mains operated electronic equipment and related apparatus for household and similar general use
电网电源供电、供家庭使用及作相类一般用途的电子设备和相关器具； |
| 5. | Uninterruptible power systems ( ups ) ; and mains operated electronic and related apparatus for household and similar general use
电网电源供电、供家庭使用及作相类一般用途的电子设备和相关器具。 |
| 6. | Mains operated electronic and related apparatus for household and similar general use ( excluding audio equipment , capacitor and crt )
电网电源供电的家用及类似用途电子设备和相关器具(除音响产品、电容器、显像管外) ； |
| 7. | Persevering in the brand - new business policy of " earnestness , practicability , innovation and development " , our company would improve quality of electric network and power supply to serve the whole society and make contribution for the whole country
公司本着“敬业求实创新开拓”全新的经营理念，提高电网电源的使用质量，服务于全社会，贡献于全国家。 |
| 8. | Firstly the paper summarized the methods of passing over of neutral section and its application status quo in the domestic and oversea . as the research object of the paper , the reason of over - voltage caused by the method of ground transfer by vacuum breaker is analyzed though simulation and experiment . and based on the analyze , a method of automatic passing over of neutral section using thyristor vale to controlling the phase of electric power is presents
本文首先综述了国内外自动过电分相的方式及应用研究现状，并以地面开关转换方式为本文的研究对象，通过仿真和实验，分析了这种方式产生过电压的机理，以此为基础，提出了以晶闸管阀控制电网电源投入时刻的自动过分相方案。 |
