XGN2-12 cubicle fixed type alternating-current metal-enclosed switchgear (hereinafter referred to as switchgear) is an indoor complete set of distribution equipment for three-phase systems of AC50Hz and voltage 3.6-12kV, used for electric energy receiving and distribution, it controls, protects and monitors the circuits. Its bus system is of single-bus structure with bypass bus, from which dual-bus structure can be derived.
This switchgear complies with the standards GB3906 A.C. metal-enclosed switchgear for rated voltages of 3~35kV and IEC298, has a perfect mechanical anti-misoperation interlocking device that is featured with reliable performances, complete functions, simple structure, convenient operation, and “five-prevention” locking function.
Main switch of the switchgear adopts ZN28A-10 series vacuum circuit breaker that is equipped with CD17 series electromagnetic operating mechanism, CT17 or CT19B spring operating mechanism. It adopts CN30-10 rotary isolating switch series.
● Ambient medium temperature should not within -25℃~+40℃;
● Altitude: not exceed 1000m;
● Relative humidity: daily mean not exceed 95%, monthly mean not exceed 90%;
● Saturated vapor pressure: daily mean not exceed 2.2×10-3MPa; monthly mean not exceed 1.8×10-3MPa;
● Seismic intensity: not beyond Ms8;
● The installation site should be free of fire, explosive danger, serious pollution, chemical corrosion or severe vibration.
● Anti-humid product is available for service environment beyond the above conditions.
Technical parameters of switchgear
Rated voltage
|
KV
|
3、6、10
|
Max working voltage
|
KV
|
3.6、7.2、12
|
Rated current
|
A
|
1000
|
1250~3000
|
Rated breaking current (effective value)
|
KA
|
20、25
|
31.5、40
|
Rated making current (peak)
|
KA
|
50、63
|
80、100
|
Rated peak withstand current (peak)
|
KA
|
50、63
|
80、100
|
Rated peak withstand current (effective value)
|
KA
|
20、25
|
31.5、40
|
Thermal stability time
|
S
|
4
|
|
Protection class
|
|
IP3X
|
|
Bus system
|
|
Single bus
|
Single bus with bypass
|
Operating methods
|
|
Electromagnetic (CD17)
|
Spring energy-storage type (CT19)
|
Outline dim.
|
mm
|
1100×1200×2650(standard)
|
|
Weight
|
kg
|
About 1000~1300
|
|