main product features:
1. the circuit breaker is a full spring mechanism with single phase operation and can realize three-phase electrical linkage. it has a compact structure and convenient connection between the mechanism and the main body, and the mechanical characteristics of the circuit breaker are determined by the design structure, with less on-site adjustments. it meets the requirements of iec 62271-1 and iec 62271-100.
2. the interrupter chamber uses the self-energy interrupter principle and adopts the structure of small diameter pressure cylinder, variable opening range and two-way air blowing.
3. the spring operation mechanism is stable and reliable, with low operating noise and high energy storage efficiency (the energy storage time is not more than 15 seconds), which is suitable for various environmental conditions. compared with the traditional hydraulic mechanism, it has no oil and gas leakage and is a maintenance free product.
4. the static sealing system adopts double o-type seal while the dynamic sealing system uses double x-type seal, reducing the leakage of sf6 gas.
|
no. |
item |
unit |
data | |
|
1 |
rated voltage |
kv |
252 | |
|
2 |
rated current |
a |
4000 | |
|
3 |
rated frequency |
hz |
50/60 | |
|
4 |
rated short-time withstand current / time |
ka/s |
50/4 | |
|
5 |
rated peak withstand current |
ka |
125 | |
|
6 |
rated short-duration power-frequencywithstand voltage |
phase-to-earth |
kv |
460 145 |
|
across isolating distance |
kv |
460 | ||
|
rated lightning impulse withstand voltage |
phase-to-earth |
kv |
1050 200 | |
|
across isolating distance |
kv |
1050 | ||
|
| ||||