●General
HDXG-40.5kV gas insulated metal-enclosed switchgear, here called C-GIS for short, is a kind of high-quality product which Introduced overseas advanced technology and developed upon the particularity of China power grid. Part of its technical performance is superior to those of the same foreign products. It’s the first one through product appraisal, awarded model certificate and model use right by national professional department. It’s used in transmission and distribution of electricity system , to control 、measure and monitor when system works properly or out of order. Compared with other products, it has significant superiority in reliability, miniaturization and economy. It conforms to National Standard GB11022, GB3906, DL404, GB1984, GB7674, GB50062, GB6162 and GB12022.
●Working Condition
a.Ambient air temperature: max temperature 45℃; average max daily temperature 35℃; min temperature -15℃; b.Altitude: ≤3000m c.Environment humidity: average daily value≤98%; average monthly value≤95% d.Earthquake intensity ≤ 8 degree e.Electromagnetic interference (EMI) of secondary system:≤ 1.6kv
●Main technical parameter
Item |
Unit |
HDXG-40.5kV(C-GIS) |
Rated voltage |
KV(effective value) |
|
Rated current |
A |
630/1250/1600/2000/2500 |
Rated frequency |
HZ |
50/60 |
Rated short time power frequency withstand voltage(Ud Imin) |
phase to phase, phase to earth |
KV(effective value ) |
95 |
Isolate break |
KV(effective value ) |
110 |
Rated lightning surge withstand voltage |
phase to phase, phase to earth |
KV(peak value) |
185 |
Isolate break |
KV(peak value) |
215 |
Rated short circuit breaking current |
KA |
25/31.5 |
Rated short circuit making current |
KA |
63/80 |
Rated short time withstand current |
KA |
23/31.5 |
Rated short time withstand uptime |
S |
4 |
Rated peak withstand current |
KA |
63/80 |
Shell protection grade |
|
Gas-filled shell IP67, instrument room IP4X |
Yearly leakage rate |
% |
≤0.2 |
Main loop resistance of each phase |
|
≤200 |
Rated air pressure in gas tank( 20℃ gage pressure) |
Mpa |
0.05 |
Rated max pressure in gas tank(20℃ gauge pressure) |
Mpa |
0.06 |
Rated min pressure in gas tank (20℃ gauge pressure) |
Mpa |
0.03 |
Mechanical life |
Rated operating order |
|
Off-0.3s, on/off-180s-on/off |
Rated operating numbers |
Times |
30000(SIEMENS 3AHX) |
Electrical durability |
Rated short circuit breaking current |
Times |
50(SIEMENS 3AHX) |
Breaking during rated current |
Times |
10000(SIEMENS 3AHX) |
Rated control voltage |
V |
DCIIO/220 |
Weight |
KG |
800 |
Size(W*H*D) |
mm |
600*2650*400(600*2300*1400) |
|