main features of the product:
1. excellent breaking performance. the circuit breaker adopts a self-energy interrupter based on the new arc extinguish principle, fully utilizes the arc's own energy to heat sf6 gas in the expansion chamber to improve breaking efficiency, and has a stronger breaking ability under the same structure size and operation power.
2. the operating mechanism has no oil, no gasification and high reliability. the mechanical life of the circuit breaker is up to 10,000 times of breaking, and it is equipped with a full spring operating mechanism to realize no oil and no gasification, improve the stability of the operating mechanism and meet the user's requirements for no oil, no gasification and less maintenance, greatly improving the operational reliability.
3. the bay has a small volume and a compact structure, and is convenient for installation and transportation, and can be applied widely. due to the adoption of the structure of the three-station isolating - grounding combined switch, the product has the advantages of small overall volume, compact structure, strong integrity, high reliability, small maintenance and convenient installation and transportation.
4. it meets the requirements of iec 62271-1, iec 62271-100, iec 62771-102, iec 62271-203 and other relevant standards;
main technical parameters:
|
no. |
item |
unit |
data | ||
|
1 |
rated voltage |
kv |
126 |
145 | |
|
2 |
rated frequency |
hz |
50/60 |
50/60 | |
|
3 |
rated current |
a |
3150 |
3150 | |
|
4 |
rated short-time withstand current |
ka |
40 |
40 | |
|
5 |
rated duration of short-time withstand current |
s |
4 |
4 | |
|
6 |
rated peak withstand current |
ka |
100 |
100 | |
|
7 |
ratedpower-frequency withstand voltage |
phase-to-earth |
kv |
230 |
275 |
|
across isolating distance |
kv |
230 70 |
315 | ||
|
8 |
rated lightning impulse withstand voltage |
phase-to-earth |
kv |
550 |
650 |
|
across isolating distance |
kv |
550 100 |
750 | ||