12kv-24kv Lbs Rmu Accessories 630A/1250A Load Break Switch

Product Description

12kv Lbs Rmu Accessories 630A/1250A Load Break Switch

Product Description
The two-position/three-position load break switch is commonly used in fully enclosed combined electrical appliances (GIS) or composite electrical appliances and is not a separate product. Commonly used in XGN ring network cabinets. The so-called three stations refer to three working positions: 1 closing position where the main disconnect of the disconnector is connected, 2 isolated positions where the main disconnect is separated, and 3 grounding position on the ground side. The three-position switch actually integrates the functions of the isolating switch and the grounding switch and is completed by a rotary blade structure.
Technical Parameters

NO.	Items	Unit	Value
1	Rated voltage	kV	12
2	Rated frequency	Hz	50
3	Rated current	A	630
4	Rated short time withstand current	kA	20, 25
5	Rated peak withstand current	kA	50
6	Rated short circuit duration	S	4
7	Rated short circuit making current	kA	50
8	Theoretical operation	Times	10000
9	Main circuit resistance	μΩ	≤35

Common Used Programme for GIS
Applicable conditions
Altitude: ≤2000m;
Ambient air temperature: -45ºC~+50ºC;
Relative humidity: daily average ≤95%, monthly average ≤90%;
It is not suitable for installations where there are frequent and severe vibrations, water vapor, gas, chemical corrosive deposits, salt spray, dust and dirt, and fire and explosion hazard installations that obviously affect the performance of the mechanism.
The rated SF6 gas pressure is 0.04MPa, and the SF6 gas meets the requirements of GB/T 12022-2014 "Industrial SF6″.
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