VSG-12 1600A Big Current Medium Voltage Fixed Type Solid Pole Vacuum Breaker 12kV - Liyond
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VSG-12 1600A Big Current Medium Voltage Fixed Type Solid Pole Vacuum Breaker 12kV

VSG-12 1600A fixed type high-voltage vacuum circuit breaker is an indoor and outdoor switching device used in 12KV power systems. It is used as a protection and control unit for power grid equipment and power design of industrial and mining enterprises. It is suitable for switching loads of different natures and frequent operations. The occasion of breaking short-circuit current for the first time. The product adopts VSG module integrated spring operating mechanism. The primary part of VSG-12 can use a sealed pole to seal the vacuum arc extinguisher and the main conductive circuit parts into a whole, protecting the arc extinguisher from collision, dust and condensation. It has strong environmental adaptability and greatly reduces the cost of the arc extinguisher, operation and maintenance.

Electrical ProductsElectrical Products

Features of VSG-12 1200A Fixed Type Solid Pole Vacuum Circuit Breaker

1. Integration, modularization, miniaturization and lightweight;
2. High reliability, long life, more stable performance;
3. High degree of generalization, inventory and standardization of parts;
4. High transmission efficiency and more reasonable design;

Applying Ambient Conditions:

1. Ambient temperature -25℃– +40℃
2. The height above sea level: ≤1000 m
3. Relative humidity: the average humidity of a day should be no more than 95%; the average humidity of a month should be no more than 90%.
4. Saturated vapor pressure: the average pressure of a day should be no mare than 2.2kPa; the average pressure of a month should be no more than1.8KPa.
5. Earthquake intensity: not exceed 8 degrees
6. It should be Installed in the places without fire, explosion, serious filth, and chemical erosion and violent vibration.

Technical Parameters of VSG-12 1600A VCB Fixed Type Solid Pole

No.
Item
Unit
Data
1
Rated voltage
kV
12
2
Rated frequency
Hz
50
3
Rated insulation level
1min power frequency withstand voltage
kV
42
Rated lightning impulse withstand voltage
kV
75
4
Rated current
A
630/1000/1250/1600/2000/2500/3150/4000
5
Rated short circuit breaking current
Rated short-time withstand current (virtual value)
kA
 
20/25/31.5/40/50
6
Rated short circuit making current (peak value)
Rated dynamic current(peak value)
kA
 
50/63/80/100/125
7
Rated short-circuit breaking current breaking time
times
30, 50
8
Rated thermal stability time
s
4
9
Rated operation sequence
O-0. 3s-CO-180s-CO
10
Mechanical life
 times
30000
11
Rated breaking current of single capacitor bank
A
630
12
The breaking current of single rated capacitance bank
A
400
13
The breaking current of rated back to back capacitance bank
s
4

Overall Dimensions of VSG-12/1600 fixed type VCB

VSG-12 vcb drawing

VCB Selection Table

S/N Item Unit Data
* Type

 

/ □Handcart Type with Embedded Pole

□Handcart Type with Insulated Cylinder

□Fixed type with Embedded Pole

□Fixed type with Insulated Cylinder

1 Rated voltage kV 12
2 Rated frequency Hz 50/60
3 Rated  insulating level 1min  power frequency withstand voltage kv 42
Rated lightning impulse withstand voltage kv 75
4 Rated current A 630 1250 1600 2000 2500 3150 4000
5 Rated short circuit breaking current

Rated thermal stability current(effective value)

kA 20
25 25
31.5 31.5 31.5 31.5 31.5
40 40 40 40 40
50
6 Rated short circuit making current(peak value)

Rated dynamic current(peak value)

kv 50
63 63
80 80 80 80 80
100 100 100 100 100
125
7 Rated short circuit current breaking times times 30,50
8 Rated thermal stability time s 4
9 Rated operating sequence times 0-0.3s-C0-180s-C
10 Mechanism life times 30000
11 The breaking current of single rated capacitance bank A 400
12 The breaking current of rated back to back capacitance bank S 4

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