main product features:
1. it is developed based on the new generation of double-acting interrupter chambers, and equipped with a three-phase mechanical linkage circuit breaker of the spring mechanism. it meets the requirements of iec 62271-1 and iec 62271-100.
2. it adopts the design of light phase-to-phase pull rods with product phase spacing of 3.5 meters.
3. the interrupter chamber has small stroke, low opening speed, small operation power and stable and reliable performance.
4. the product has excellent breaking ability which can reach classes e2 and c2 determined by iec standards.
5. the performance is stable and reliable, and the mechanical life is up to 5,000 times of breaking.
|
no. |
item |
unit |
data | |
|
1 |
rated voltage |
kv |
252 | |
|
2 |
rated current |
a |
4000 | |
|
3 |
rated frequency |
hz |
50 | |
|
4 |
rated short-time withstand current / time |
ka/s |
50/3 | |
|
5 |
rated peak withstand current |
ka |
125 | |
|
6 |
rated short-duration power-frequencywithstand voltage |
phase-to-earth |
kv |
460 |
|
across isolating distance |
kv |
460( 146) | ||
|
rated lightning impulse withstand voltage |
phase-to-earth |
kv |
1050 | |
|
across isolating distance |
kv |
1050( 206) | ||