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1. Product introduction
VSCE (I) series indoor high voltage AC vacuum circuit breaker is an indoor device with three-phase AC 50Hz and rated voltage of 12kV. It can be used for the control and protection of electrical facilities in industry, mine, enterprise, power plant and substation. The product conforms to the national standard GB1984 "AC high voltage circuit breaker" and the International Electrotechnical Commission iec60056 "high voltage AC circuit breaker" and other standards.
The installation form of the circuit breaker in the cabinet is withdrawable handcart type. There are also fixed circuit breakers arranged on the side of the mechanism.
2. Product features
◆ totally enclosed pole has excellent electrical performance
◆ the circuit breaker mechanism has excellent anti-corrosion performance and advanced design
◆ the circuit breaker is C2 level
In the process of capacitive current breaking, the circuit breaker has a very low probability of re striking, which meets the requirements of class C2 circuit breaker
◆ adopt buffer with excellent buffer performance
The specially designed buffer reduces the overshoot and rebound of opening, and improves the mechanical life of the circuit breaker
◆ nylon insulated pull rod
The insulated pull rod is made of imported nylon 66 and glass fiber material, which not only ensures the strength and toughness, but also ensures the electrical performance
3. Main technical parameters
|
No. |
Item |
Unit |
Data |
|||||
|
1 |
Rated voltage |
kV |
12 |
|||||
|
2 |
Rated insulation level
|
Rated power frequency withstand voltage(kV 1min) |
phase to ground and phase to phase |
42 |
||||
|
isolating distance |
48 |
|||||||
|
Rated lightning shock resistance |
phase to ground and phase to phase |
75 |
||||||
|
isolating distance |
85 |
|||||||
|
3 |
Rated frequency |
Hz |
50 |
|||||
|
4 |
Rated current |
A |
630 and 1250 |
|||||
|
5 |
Rated short-term withstand current |
kA |
20, 25 and 31.5 |
|||||
|
6 |
Rated peak withstand current |
50 |
63 |
80 |
||||
|
7 |
Rated short circuit withstand current |
20 |
25 |
31.5 |
||||
|
8 |
Duration of rated short circuit |
s |
4 |
|||||
|
9 |
Rated short circuit closing current |
kA |
50 |
63 |
80 |
|||
|
10 |
Rated operation sequence |
s |
O-0.3s-CO-180s-CO |
|||||
|
11 |
Breaking time |
ms |
<80 |
|||||
|
13 |
Times of breaking for rated short circuit breaking current |
times |
30 |
|||||
|
14 |
Mechanical life |
30000 |
||||||
|
width of cabinet |
data （12KV） |
P |
A |
B |
C |
D |
|
600 |
630A …31.5KA |
150 |
502 |
502 |
498 |
42.5 |
|
1250A …31.5KA |
502 |
502 |
498 |
42.5 |
||
|
800 |
630A …31.5KA |
210 |
650 |
652 |
648 |
42.5 |
|
1250A …31.5KA |
650 |
652 |
648 |
42.5 |
||
|
1000 |
630A …31.5KA |
275 |
850 |
852 |
844 |
48.5 |
|
1250A …31.5KA |
850 |
852 |
844 |
48.5 |
Drawing 4: Overall dimension of handcart type breaker
|
data（12kV） |
P |
A |
B |
h1 |
h2 |
H |
|
630、1250A …31.5KA |
150 |
450 |
400 |
236 |
275 |
552 |
|
|
210 |
588 |
550 |
236 |
275 |
552 |
Drawing 5: Overall dimension of fixed type breaker
|
Width of cabinet |
Distance |
A |
B |
C |
D |
E |
|
1000 |
275 |
850 |
800 |
700 |
852 |
880 |
|
800 |
210 |
650 |
600 |
550 |
652 |
680 |
|
650 |
150 |
500 |
450 |
400 |
502 |
530 |
|
550 |
150 |
400 |
350 |
300 |
402 |
430 |
Phone：0592-6295789
Address： 福建省厦门市集美区北部工业区环珠路47号
Email： sales-ele@sce-cn.com
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