main features of the product:
1. it meets the requirements of iec 62271-1, iec 62271-100, iec 62771-102, iec 62271-203 and other relevant standards;
2. the interrupter of the circuit breaker adopts a double break design with excellent breaking performance, and the cumulative number of breaking under rated short-circuit breaking current reaches 16 times; the mechanical reliability is high, and the mechanical life reaches 10,000 times of breaking.
3. the circuit breaker is equipped with an integrated block type and high-power hydraulic operating 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. the disconnector, earthing switch, bushing and busbar are originally designed in the structure and perform stably and reliably.
5. this product is a new product independently developed by pinggao group which holds independent intellectual property rights, filling the gap of 800 kv gis in china.
main technical parameters:
|
no. |
item |
unit |
data | |
|
1 |
rated voltage |
kv |
800 | |
|
2 |
rated current |
a |
6300 | |
|
3 |
rated frequency |
hz |
50/60 | |
|
4 |
rated short-time withstand current /time |
ka/s |
63/2 | |
|
5 |
rated peak withstand current（peak） |
ka |
171 | |
|
6 |
rated sf6 gas pressure (20℃) |
cbcompartment |
mpa |
0.6 |
|
other compartments |
mpa |
0.4/0.5 | ||
|
7 |
rated power-frequency withstand voltage |
phase-to-earth |
kv |
960 |
|
across isolating distance |
kv |
960 460 | ||
|
8 |
rated switching impulse withstand voltage |
phase-to-earth |
kv |
1550 |
|
across isolating distance |
kv |
1300 650 | ||
|
9 |
rated lightning impulse withstand voltage |
phase-to-earth |
kv |
2100 |
|
across isolating distance |
kv |
2100 650 | ||