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

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