main product features:
1. the insulation level is high, meeting the requirements of iec 62271-1 and iec 62271-100; the current capacity is strong and the rated current reaches 6300 a.
2. the interrupter of the circuit breaker adopts a double break design with excellent breaking performance, and the cumulative breaking times under rated short-circuit breaking current reach 20 times,the mechanical reliability is high, and the mechanical life reaches 10,000 times.
3. the circuit breaker is equipped with an integrated block type and high-power hydraulic operation mechanism, which is the first in china. the performance is safe and reliable. the hydraulic pipelines are all built-in, without leakage, and the appearance is simple and novel.
4. it has good universality and can be interchanged with most parts of the circuit breaker in zf27-800 (l) gis.
main technical parameters:
|
no. |
item |
unit |
data | ||
|
1 |
rated voltage |
kv |
800 | ||
|
2 |
rated frequency |
hz |
50/60 | ||
|
3 |
rated current |
a |
5000 |
6300 | |
|
4 |
rated short-time withstand current/time |
ka/s |
50/2 |
63/2 | |
|
5 |
rated peak withstand current |
ka |
135 |
160 | |
|
6 |
rated short-duration power-frequency withstand voltage |
phase-to-earth |
kv |
960 | |
|
across isolating distance |
kv |
960 460 | |||
|
rated lightning impulse withstand voltage |
phase-to-earth |
kv |
2100 | ||
|
across isolating distance |
kv |
2100 650 | |||
|
rated switching impulse withstand voltage |
phase-to-earth |
kv |
1550 | ||
|
across isolating distance |
kv |
1300 650 | |||