main features of the product:
the company successfully developed zf27-1100 (l) / y6300-50 gas insulated metal-enclosed switchgear (gis) by introducing advanced foreign technology.
the switchgear consists of circuit breaker, disconnector, earthing switch, current transformer, busbar, bushing and lightning arrester. its rated current is 6300 a and the rated short-circuit breaking current is 50ka. the cumulative number of breaking under the rated short-circuit breaking current reaches 16 times; the current capacity of the isolating switch and busbar reaches 9000 a, representing the highest level of similar products in the world.
in the first uhv ac test & demonstration project in china, pinggao group successfully developed the first 1100 kv gis in china, successfully completed the supply of 1100 kv gis for two bays in the southeast shanxi substation, and put them into operation safely, providing a strong guarantee for the smooth construction and operation of the uhv ac test & demonstration project.
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 |
1100 | |
|
2 |
rated current |
disconnector、busbar |
a |
8000 |
|
others |
6300 | |||
|
3 |
rated frequency |
hz |
50/60 | |
|
4 |
rated short-time withstand current/time |
ka |
63/2 | |
|
5 |
rated peak withstand current |
ka |
170 | |
|
6 |
rated power-frequency withstand voltage |
phase-to-earth |
kv |
1100 |
|
across isolating distance |
kv |
1100( 635) | ||
|
7 |
rated switching impulse withstand voltage |
phase-to-earth |
kv |
1800 |
|
across isolating distance |
kv |
1675( 900) | ||
|
8 |
rated lightning impulse withstand voltage |
phase-to-earth |
kv |
2400 |
|
across isolating distance |
kv |
2400( 900) | ||
|
9 |
rated sf6 gas pressure (20℃) |
cbcompartment |
mpa |
0.65 |
|
other compartments |
mpa |
0.45 | ||