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
|
|