China MV Distribution Air insulated pole mounted load break switches LBS11-15KV Manufacture and Factory

MV Distribution Air insulated pole mounted load break switches LBS11-15KV

Short Description:

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

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Product Detail

Product Tags

General

All overhead power transmission lines require an Air Break Switch, which is primarily used to connect or disconnect (on/off switching) the power system of a specific section of overhead line and transformer from the main distribution line. This enables the user to isolate a section of the overhead wire without disrupting the remaining power transmission system.

Service and Installation Conditions

Service and Installation Conditions

1.1. height above sea level: ≤3000m

1.2. Air temperature: -40℃～+50℃

1.3. Relative humidity: Daily mean 95%, monthly average 90%

1.4. Maximum wind speed: ≤34m/ｓ

1.5. Earthquake intensity: ＜8 degree

1.6. Icing thickness: ＜10mm

1.7. Thickness of snow: ＜35mm

1.8. Irradiance: ＜0.1W/cm2

1.9. Pollution grade: Ⅲ class、Ⅳclass

1.10. Installation site: No fire disaster, explosion danger, chemical corrosion and frequent strenuous vibration places

Product structure

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