12kv Indoor Co-Boxed Type Sf6 Gas Insulated Switchgear

China 
                12kv Indoor Co-Boxed Type Sf6 Gas Insulated Switchgear
              manufacture and supplier

12kv Indoor Co-Boxed Type Sf6 Gas Insulated Switchgear image

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Basic Info.

Model NO.
LY-12 CFV

Trademark
LIYOND

Origin
China

Production Capacity
5000/Year

Product Description

12kV Indoor Co-boxed Type SF6 Gas Insulated Switchgear

Summary:

LY-12 gas insulated switchgear series is a compact metal-sealed switchgear system for 10KV power distribution system. The switchgear is uniquely flexible due to its expandability, enabling full and semi-modular combinations.

The stainless steel gas chamber of the LY-12 gas insulated switchgear equipment is filled with SF6 gas, which completely seals all the live parts and the switch, and isolates them from the outside world. This fully-sealed structure keeps the internal switches and live parts from being affected by changes in the external environment, ensuring the reliability, safety and maintenance-free nature of the equipment.
The basic module scheme forms are: C, F, V, D, De.
The code description is as follows:
C: Two-position load break switch unit with earthing switch
F: Load break switch-fuse combination module
V: Vacuum switch module with earthing switch and two-position load (isolating) switch
D: Cable connection module without earthing switch
De: Cable connection module with earthing switch

Working Conditions

1. Ambient air temperature: upper limit +40 °C lower limit -40 °C;
2. Air relative humidity: the daily average is not more than 95%, and the monthly average is not more than 90%;
3. Altitude ≤ 1500 meters (under standard inflation pressure);
4. The seismic intensity does not exceed 8;
5. Places without fire, explosion, serious pollution, chemical corrosion and severe vibration.

 

Special conditions
Manufacturer and end user must agree on special operating conditions that differ from normal operating conditions.
If particularly harsh operating environments are involved, the manufacturer and supplier must be consulted.
When the electrical equipment is installed above 1500 meters above sea level, it should be specified so that the pressure can be adjusted during manufacture. When this pressure is adjusted, the life of the switchgear itself has no significant effect.




Main technical parameters:

 
Item Unit C module F module V module
Load break Switch Combination
apparatus
Vacuum
switch
Disconnecting/

 

earthing switch

Rated voltage kV 12 12 12 12
Rated frequency Hz 50 50 50 50
Power frequency withstand voltage
(interphase/fracture)
kV 42/48 42/48 42/48 42/48
Lightning impulse withstand voltage kV 75/85 75/85 75/85 75/85
Rated current A 630 * 630 630
Rated closed loop breaking current A 630      
Rated cable charged breaking current A 10      
Rated short-circuit making curemt (peak) A 50 80    
Rated peak withstand current kA 50      
Rated short time withstand current kA/4s 20      
Rated short circuit breaking current kA   31.5 20  
Rated transfer current A   1700    
Maximum current with fuse A 125    
Loop resistance Ω ≤300 ≤600    
Mechanical life Times 5000 3000 5000 2000

*Depends on fuse rated current value.

 

Ordering Instructions

The user must provide the following technical information when ordering:
1. Main circuit diagram, arrangement diagram and floor plan;
2. Schematic diagram of the secondary circuit of the switch cabinet;
3. Models, specifications and quantities of all electrical components in the switchgear;
4. If you need to set up a low-voltage box, it should be explained;
5. When the switch cabinet is used in special environmental conditions, it should be explained.

 

 

 

 

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