XUCKY Electric is a leading China manufacturer and exporter specializing in VEF-12GD Side Installation Type 3 Working Position Vacuum Circuit Breaker. We have a wide range of products to meet the different needs of our customers worldwide. Our commitment to superior quality, innovative technology and excellent customer service makes us stand out in our industry.
Integrated, side installation, with disconnect switch, with earth switch (upper/lower earthing), interlocking mechanism integrated miniaturized
● 12KV, 630~1250A, 20~31.5KA
● For cabinet width 500mm
● Patented technology
● Solid sealing technology
● Outgoing terminal with non-contact charged display sensor
● The cabinet door block adjustment free
Normal use environment
● Ambient temperature: -15~40℃, daily average temperature ≤+35℃;
● Humidity: The average value of relative humidity measured within 24 hours is ≤95%; the average value of water vapor pressure measured within 24 hours is ≤2.2kpa; the average value of relative humidity is <90%; the average value of monthly water vapor pressure is <1.5 kpa;
● Altitude ≤1000m;
● Sunlight radiation can be ignored;
● Vibration from outside the switchgear and control equipment can be ignored;
● The surrounding air is not significantly polluted by dust, smoke, corrosive or flammable gas, steam or smoke.
The main circuit of VEF-12GD series side installation type 3 working position vacuum circuit breaker is arranged longitudinally. The upper part is the disconnect switch, the middle part is the vacuum circuit breaker, and the lower part is the earth switch. The operating mechanism, the circuit breaker mechanism and the interlocking mechanism are located in the front of the switch. The switch can be installed upside down.
● Safety and excellent embedded pole
High reliability, stable insulation performance, stronger structure, miniaturization, maintenance-free, more environmentally friendly, and high mechanical resistance.
● Visual disconnect open contacts
Rotary disconnect switch with visible disconnect open contacts after opening.
● Modular operating mechanism
The circuit breaker adopts a modular operating mechanism, which can be replaced or overhauled independently, and has good interchangeability. It can be operated manually, or can be operated by AC or DC energy storage to realize remote control.
● Three-shafts step-by-step operation, reliable mechanical interlocking
The disconnect switch, circuit breaker, and earth switch are operated on a single shaft respectively, and there is a forced mechanical interlock between the 3 shafts to prevent misoperation.
● Outgoing wire end with non-contact charged display sensor
No capacitance, using non-contact induction technology, safe and reliable.
● The cabinet door and the earth switch are designed with a reliable interlocking structure
To ensure the safety of the operator, the adjustment-free cabinet door with cabinet door block.
|
NO. |
Items |
Unit |
Parameters |
||
|
1 |
Rated voltage |
kV |
12 |
||
|
2 |
(1min) rated short time power frequency withstand voltage: phase-to-phase, across open contacts |
42/48 |
|||
|
3 |
Rated lightning impulse withstand voltage (peak): phase-to-phase, across open contacts |
75/85 |
|||
|
4 |
Primary circuit power frequency withstand voltage (1min) |
V |
2000 |
||
|
5 |
Rated frequency |
Hz |
50 |
||
|
6 |
Rated current |
A |
630, 1250 |
||
|
7 |
Rated short circuit breaking current |
kA |
20 |
25 |
31.5 |
|
8 |
Rated peak withstand current |
kA |
50 |
63 |
80 |
|
9 |
Rated short circuit making current |
kA |
50 |
63 |
80 |
|
10 |
4S rated short time withstand current |
KA |
20 |
25 |
31.5 |
|
11 |
Rated short time withstand current duration |
S |
4 |
||
|
12 |
Rated single/back-to-back capacitor bank breaking current |
A |
630/400 |
||
|
13 |
Rated capacitor bank making inrush current |
kA |
12.5(frequency ≤1000Hz) |
||
|
14 |
Rated short circuit current breaking number |
times |
30 |
||
|
15 |
Mechanical life (disconnect switch/circuit breaker/earth switch) |
|
3000/10000/3000 |
||
|
16 |
Allowable cumulative wear thickness of moving and fixed contact |
mm |
3 |
||
|
17 |
Rated closing operating voltage |
V |
AC24/48/110/220, DC24/48/110/220 |
||
|
18 |
Rated opening operating voltage |
||||
|
19 |
Rated voltage of motor |
||||
|
20 |
Rated power of motor |
W |
70 |
||
|
21 |
Charging time |
S |
<15 |
||
|
22 |
Clearance between open contacts |
mm |
9±1 |
||
|
23 |
Overtravel |
3.5±1 |
|||
|
24 |
Contacts closing bounce time |
ms |
<2 |
||
|
25 |
Three phase opening and closing asynchronism |
<2 |
|||
|
26 |
Opening time (rated voltage) |
<40 |
|||
|
27 |
Closing time (rated voltage) |
<60 |
|||
|
28 |
Average opening speed (contacts just opened~6mm) |
m/s |
0.9-13 |
||
|
29 |
Average closing speed (6mm~contacts just closed) |
0.5-11 |
|||
|
30 |
Contacts opening rebound amplitude |
mm |
<2 |
||
|
31 |
Contacts closing contact pressure |
N |
2400±200( 20-25kA) 3100±200(31.5kA) |
||
|
32 |
Rated operating sequence |
|
O-03S-CO-180S-CO |
||
Address
No.2567 Liuqing South Road, Liushi, Yueqing, Wenzhou, Zhejiang, China
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