oem ZN23-40.5 indoor high voltage vacuum circuit breaker
1.One organic structure
2.Imported 3AF type spring operating structure
3.210mm,230mm,250mm,275mm& other kinds of phase spaces.
2.Imported 3AF type spring operating structure
3.210mm,230mm,250mm,275mm& other kinds of phase spaces.
4.Both type CT19BN spring operating structure or the CD10III electromagnetic operating structure can be chosen.
This type of product conforms to the requirement of GB1984-89 and DL402-91standard for alternating current high voltage circuit breaker.
| Main Technical Data | |||
| Rated voltage | kv | 40.5 | |
| Rated lighting impulse withstand voltage(peak) | kv | 185 | |
| Rated short-time power frequency withstand voltage(1min) | kv | 95 | |
| Rated short-circuit breaking current | kA | 25 | 31.5 |
| Rated current | A | 1250/1600 | 1250/1600/2000 |
| Rated peak withstanding current | kA | 63 | 80 |
| Rated operations of short-circuit breaking current interruption | times | 20 | |
| Rated duration of short-circuit | s | 4 | |
| Rated operating sequence | 0-0.3-CO-180s -CO | ||
| Supply voltage of open and close installation | v | AC,DC220 AC,DC110 | |
| Closing time | ms | 50~100 | |
| Opening time | ms | 30~60 | |
| Rated single capacitor bank breaking current | A | 630 | |
| Rated back to back capacitor bank breaking current | A | 400 | |
| Mechanical life | times | (M1 degree)10000 | |
| Mechanical characteristics adjustment data | |||
| Rated contact stroke | mm | 22±2 | |
| Contact overtravel | mm | 8±2 | |
| Average opening speed | m/s | 1.8±0.2 | |
| Average closing speed | m/s | 0.65±0.2 | |
| Contact bouncing duration at closing operation | ms | ≤3 | |
| Type of operatinf structure | Special 3AV sprinf operating structure | ||
| Three-pole simultaneity | ms | ≤2 | |
| Condactive circuit resistance of each phases | μΩ | ≤45 | |
