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CXGN/FL-12 Air Insulated Switchgear

CXGN/FL( R ) Air-insulated switchgear is equipped with CKFL-S type SF6 load switch which is installed with epoxy resin enclosure inside and uses SF6 for insulation. It can work in the voltage range maximum up to 24kV. Its family includes CXGN/FL SF6 load switch switchgear and CXGN/FLR SF6 load switch-fuse combination switchgear.

product feature


1. Load switch and earthing switch through interlocking device and stored-energy spring to comprise the operating mechanism

---- Thanks to the bluing, all parts of the operating mechanism have rust-proof performance.

---- The operating positions for load switch and earthing switch are not only independently but also closely related.

---- The operating process is simple and easy, and the operating result can be easily indicated.

---- It can operate by manual or motor.

---- Logic mechanical interlocking to prevent faulty operation

2. Safety

----All high voltage parts including cable terminal connector and busbar are installed inside enclosure.

----Capacitive voltage indicator can check whether it is isolated from the power safely.

----The operating mechanism and auxiliary switch are isolated from the primary side.

----The logic mechanical interlocking can prevent faulty operation

----The sealed gas tank has one structure vulnerable point which can release the over pressure, which ensure the safety of operator

3. Stable and reliable working

4. It has excellent feature of simples structure, flexible operate, reliable interlock etc. It can provide satisfactory and suitable  technical solutions  for different application and customer requirement

5. lower maintainance cost




Description

Unit

Load switch unit

Switch-fuse combination unit

Rated voltage

kV

12

12

Rated Frequency

Hz

50

50

 

 

 

 

 

Rated Insulation

1min Power frequency withstand voltage(effective value) 1min

phase-to-phase phase-to-earth

kV

42

42

 

open contact

 

kV

 

48

 

48

Lightning impulse withstand voltage(full wave)

phase-to-phase phase-to-earth

kV

75

75

open contact

kV

85

85

Rated current

A

630

630

Maximum rated current of fuse

A

 

125

Rated short-circuit breaking current

kA

 

31.5(fuse)

Rated transfer current

A

 

1700

Duration for rated short-time

S

4

 

Rated short-circuit withstand current

kA

20

 

Rated peak withstand current

kA

50

 

Rated short-circuit making current

kA

50

80

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