Abstract
In order to solve the contradiction between the rapid isolation of low voltage DC faults and the low bounce of small stroke vacuum switches, taking the fast vacuum switch for 400 V DC power distribution system as the research object, the electromagnetic buffer simulation and experimental research in the opening process are carried out. The influencing factors of the dynamic and reaction mechanism and buffer output characteristics are analyzed, and the electromagnetic buffering effect under typical working conditions is simulated, which proves that electromagnetic buffer is a necessary part of 400 V fast vacuum switch and the motion characteristics of fast switching are optimal when applying 220 V electromagnetic buffer. According to the simulation calculation results, the engineering prototype was made, the experimental research on the electromagnetic buffer under typical working conditions was carried out, and the design criteria of the small stroke electromagnetic buffer were proposed, which solved the problem of fast switching of small stroke and reliable control and low bounce.
| Original language | English |
|---|---|
| Pages (from-to) | 1956-1964 |
| Number of pages | 9 |
| Journal | IEEJ Transactions on Electrical and Electronic Engineering |
| Volume | 19 |
| Issue number | 12 |
| DOIs | |
| State | Published - Dec 2024 |
| Externally published | Yes |
Keywords
- DC vacuum switch
- electromagnetic buffering
- kinematic characteristics
- operating mechanism