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Pole-mounted Air/Load breaker switch
General
The (H)GW series outdoor Air/Load breaker switch is a three-phase AC 50Hz /60Hz outdoor medium-voltage switchgear, which can open and close the power line and can see the obvious disconnect distance.
Application voltage levels include 12kV, 24kV and 36kV.
Application standard: IEC62271-102
Service and Installation Conditions
2.1.height above sea level：≤3000m
2.2.Air temperature： -40℃～+50℃
2.3.Relative humidity：Daily mean 95%
monthly average 90%
2.4.Maximum wind speed：≤34m/ｓ
2.5.Earthquake intensity：＜8 degree
2.6.Icing thickness： ＜10mm
2.7.Thickness of snow： ＜35mm
2.8.Irradiance： ＜0.1W/cm2
2.9.Pollution grade：Ⅲ class、Ⅳclass
2.10.Installation site：No fire disaster, explosion danger, chemical corrosion and frequent
strenuous vibration places
Model and Definitions
Technical parameters
|
Item |
Unit |
Data |
||
|
Rated voltage |
kV |
12 |
24 |
36 |
|
Rated frequency |
Hz |
50/60 |
||
|
Rated current |
A |
400 / 630 |
||
| Rated short-circuit withstand/breaking current |
kA |
12.5 |
||
| Rated short-circuit making current (peak) |
kA |
31.5 |
||
| Rated peak withstand current |
kA |
31.5 |
||
| Rated short-circuit time |
Sec |
1 |
||
| Mechanical Operations |
Times |
5000 |
||
| Power frequency withstand voltage (1 min) |
kV |
28/32 |
50/60 |
70/80 |
| Lightning impulse withstand voltage (peak) |
kV |
76/85 |
125/145 |
170/190 |
