MV XGN2-12 Fixed Metal-enclosed Switchgear for Frequent Operation Occasions

A MV XGN2-12 fixed metal-enclosed switchgear.
MV XGN2-12 fixed metal-enclosed switchgear.
MV XGN2-12 fixed metal-enclosed switchgear is used to receive and distribute power energy in electrical power system of three-phase, AC, 50 Hz and 3.6 kV, 7.2 kV and 12 kV voltage. It is especially suitable for frequent operation occasions. It meets the standards of GB3906 and IEC298. The main switch adopts ZN63-12 and ZN65A-12 integrated vacuum circuit breaker. Disconnecting switch adopts GN30-12 rotating disconnecting switch, GN22-12 high current disconnecting switch and GN30-12 rotating high current disconnecting switch.

The model and meaning of MV XGN2-12 fixed metal-enclosed switchgear.
Working conditions:

Altitude: ≤ 1000 m.
Temperature range: -25 °C to +40 °C.
Relative air humidity: daily: ≤ 95%, monthly: ≤ 90%.
Seismic intensity: ≤ 8 degree.
Workplaces should be free of fire, explosion, serious pollution, chemical corrosion and severe vibration.
Note: if switchgear is installed in the areas where altitude is higher than 1000 m, please contact with manufacturer to take measure of enlarge insulation.

Technical parameters of MV XGN2-12 fixed metal-enclosed switchgear
No.    Items    Parameters
1    Rated voltage (kV)    3.6, 7.2, 12
2    Rated current (A)    630 - 3150
3    Maximum working current (A)    630, 1000, 1250, 2000, 2500, 3150
4    Rated short-circuit breaking current (kA)    20, 31.5, 40
5    Rated short time withstand current (kA)    20, 31.5, 40
6    Rated peak withstand current (kA)    50, 80, 100
7    Rated making current (kA)    50, 80, 100
8    Thermal stabilization time (s)    4
9    Protection degree    IP2X
10    Weight (kg)    400 - 700
11    Overall size (width × depth × height) (mm)    1100 × 1200 × 2650 (1250 A and below)
1200 × 1200 × 2650 (1250 A above)
Technical parameters of ZN65-12 and ZN63-12 circuit breaker
Items    Parameters
Rated voltage (kV)    12
Rated frequency (Hz)    50
Rated current (A)    1250, 2000, 2500, 3150
Rated short-circuit breaking current (kA)    20, 31.5, 40
Rated making current (kA)    50, 80, 100
Rated short-time withstand current (kA)    20, 31.5, 40
Rated peak withstand current (kA)    50, 80, 100
Thermal stable time (s)    4
Mechanical life (Times)    10000
Vacuum interrupter vacuum degree (Pa)    ≥ 6.6 × 102
Arcing time (ms)    ≤ 20
Rated short-circuit breaking current breaking times (Times)    30 (50)
Technical parameters of disconnecting switch
Items    GN30-12/400-12.5    GN30-12/630-20    GN30-12/1250-31.5
GN30-12D/400-12.5    GN30-12D/630-20    GN30-12D/1250-31.5
Rated voltage (kV)    12
Rated current (A)    400    630    1250
Rated short-time withstand current (kA)    12.5    20    31.5
Rated peak withstand current (kA)    31.5    50    80
Rated insulation level    Lightning impulse withstand voltage (kV)    75
1 min power frequency withstand voltage (kV)    42