| 1. | Study on inverse problem of electric field for high voltage sf6 arc quenching chamber
6断路器灭弧室电场逆问题求解研究 |
| 2. | With the software of ansys , the electric field of arc quenching chamber is calculated , and the insulating structure is also optimized
应用ansys软件计算了灭弧室电场分布，并对绝缘结构进行了优化。 |
| 3. | The test result indicates that 126kv / 31 . 5ka self - energy sf6 cb has excellent opening character and also proves the reasonability of arc - quenching chamber structure design
试验结果表明126kv31 . 5ka自能式断路器具有良好的开断性能，也证实了此灭弧室结构设计的合理性。 |
| 4. | The electric field of phase - phase , phase - earth of three - phase arc quenching chamber of the circuit breaker is calculated , insulation character is analyzed and the circuit breaker ' s whole insulating structure are ensured
计算了断路器三相灭弧室断口相间、相对地等的电场分布，对绝缘性能进行了分析，确定了真空断路器整体绝缘结构。 |
| 5. | In addition , electric field distribution of arc - quenching chamber is calculated in adopting anasys software and the largest electric field intention is analyzed under the impulsion voltage and infrequency voltage , then the size of insulation porcelain cover is determined
采用anasys软件计算了灭弧室电场分布，并对冲击电压和工频电压下的最大电场强度进行了分析，确定了绝缘瓷套的尺寸。 |
| 6. | So the operation machine only provides kinetic energy needed for contactor moving , then operation power is decreased largely and machine is simplified . consequently the structure and size of arc - quenching chamber are decreased and reliability of cb is improved greatly
这样操动机构仅需提供触头运动所需要的动能，从而大大减少了操作功，简化了机构，减小了灭弧室的结构尺寸，大大提高断路器的可靠性。 |
| 7. | So the development of self - energy sf6 cb is very important . in the paper , the math model of arc - quenching chamber air - pressure character is built on the base of 126kv / 31 . 5ka self - energy sf6 cb ' s exploiting , then the theory analysis and calculation is deeply been done for cylinder radius , nozzle spout radius and opening position of moved contact that they have the essential effect for the use of arc energy in the course of opening . arc - quenching chamber parameter is confirmed according to the request of full opening and fault opening when the cb is opening
本文针对126kv31 . 5ka自能式sf _ 6断路器的研制，建立了相应的灭弧室气压特性数学模型，对自能式sf _ 6断路器开断过程中电弧能量利用有重要影响的灭弧室缸径、喷口直径、动触杆开口位置进行了详细深入的理论分析和计算，并根据断路器开断中的满容量开断和近区故障开断的要求确定了灭弧室参数。 |
| 8. | 2 miniaturized vacuum arc quenching chamber which is with cucr25 contact material , cup shape and longitudinal magnetic field contact structure , intensive interrupting ability is used . vacuum arc quenching chamber is laid in a sealed insulating cylinder , which significantly improve the ability of enduring environment and phase - phase insulation character
2 、设计了采用cucr25触头材料、杯状纵磁场触头结构、开断能力很强的小型化真空灭弧室；真空灭弧室布置在封闭的绝缘筒内，提高了环境耐受能力，同时使相间绝缘性能显著提高。 |
| 9. | On the basis of analyzing in theory , the operation mechanism structure is optimized , which makes the better fit between output character and arc quenching chamber ' s counterforce during switching and closing , very appropriate structure design and very little distortion amount , so the character is kept better and the reliability is improved
在理论分析的基础上优化了操动机构的结构，使得机构在开断和关合过程中出力特性与灭弧室的反力特性配合良好；结构设计上非常合理，保证部件变形量最小，这样既保证了性能又提高了可靠性。 |
| 10. | It is a very high advancement to the development from two - pressure arc - quenching chamber and single - pressure arc - quenching chamber to the self - energy arc - quenching chamber now for arc - quenching theory of sf6 cb make use of the arc blocking effect , namely arc - self - energy , to increase sf6 gas pressure in the arc - quenching chamber and get the efficient blasting effect to extinguish the arc when the arc current is zero
Sf _ 6断路器从双压式、单压式发展到如今的自能式是断路器灭弧原理的一个重大飞跃。自能式sf _ 6断路器利用电弧阻塞效应即利用电弧本身的能量使灭弧室内sf _ 6气体的压力升高，在电弧过零时产生有效的气吹而熄灭电弧。 |
