Company profile
China· ZheJiang ChangKai Electrical CO., LTD was locate d at coastal zone of south of Zhejiang province, that is, Beautiful Yandan mountain of scenery YueQing known as China Electric Municipality. It possesses one hundred and eighty employees in total, thirty percent of which is various of professional technician. The company has completely pass ed the ISO9001 Quality System certification and obtain ed the production license, CCC Authentication, testing certification. Right of self-supporting importing and exporting.
Descriptions of the product
ZN28 series vacuum circuit breaker as specified voltage 12KV, three-phase exchange 50/60 HZ high pressure switchgear in the one. Products accord with GB1984 standard, this product ensemble architecture and operating organization an organic whole installer switch noumenon separates from operating organization and installs two kinds of forms for switch noumenon. An organic whole type structure Namely a basic model of ZN28, Divide style structure a ZN28A type, it should be in various kinds of regular type switch cupboards to be right, such as GG-1A(Z), XGN2A10(Z), etc.
Product this can mix and speak with CD17, model CD 10A direct current magnetism motive construct speak and move organization with CT17, model CT19 spring energy storage type.
|
Item |
Unit |
Data |
|
20kv |
25kv |
31.5kv |
40kv |
|
Rated voltage(KV) |
Kv |
12 |
|
Rated current(A) |
A |
630,1000,1250 |
1250,1600 |
1250,1600,2000,2500 |
1600,2500,3150 |
|
Rated short-circuit break current |
Kv |
20 |
25 |
31.5 |
40 |
|
Rated short-circuit close current(peak value) |
KV |
50 |
63 |
80 |
100 |
|
Rated peak value withstand current |
KV |
50 |
63 |
80 |
100 |
|
4S rated little withstand current |
KV |
20 |
25 |
31.5 |
40 |
|
Rated insulation level |
Industrial frequency withstand voltage |
KV |
45(fracture 48) |
|
Thunder impulse withstand voltage |
75(fracture 84) |
|
Rated operation order |
|
Off-0.3S on and off-180S-on and off |
|
Mechanical life-span |
times |
10000 |
|
Rated short-circuit current break and close time |
times |
30 |
20 |
|
Speak and move organization amount equal to the voltage of the floodgate(DC) |
V |
110,220 |
220 |
|
Speak and move mechanism amount shut the electric current of floodgate(DC) |
A |
71 |
128 |
|
Speak and move organization amount assign the voltage of the floodgate(DC) |
V |
110,220 |
|
Speak and move organization amount assign the electric current of floodgate(DC) |
A |
3.0,1.5 |
|
Switching distance of the contact |
mm |
11±1 |
|
Ultra journey (touches the head spring and compress length) |
mm |
4±1 |
|
Three-phase breaking into, shut floodgate sex of the same period |
ms |
≤2 |
|
Touch the head and shut a floodgate of time of bouncing |
ms |
≤2 |
|
Average speed of breaking brake |
m/s |
1.2±0.3 |
|
Average speed of closing brake |
m/s |
0.6±0.2 |
|
Time of breaking brake |
Operate it under the voltage highest |
s |
≤0.06
≤0.08 |
|
Operate it under the voltage the mostlow |
|
Time of closing brake |
s |
≤0.2 |
|
Each the resistance of main return circuit |
Ω |
≤40 |
≤20 |
|
Allowance abrasion cumulated thickness of the moving and stationary contact |
mm |
3 |
|
Oil buffer buffers the journey |
mm |
10 |
|
|
|
|
|
|
|
|
|
|
China· ZheJiang ChangKai Electrical Co., Ltd was locate d at coastal zone of south of Zhejiang province, that is, Beautiful Yandan mountain of scenery YueQing known as China Electric Municipality. It possesses one hundred and eighty employees in total, thirty percent of which is various of professional technician. The company has completely pass ED the ISO9001 Quality System certification and obtain ED the production license, CCC Authentication, testing certification. Right of self-supporting importing and exporting.
The company conducts management principle that the Strong's collab o ration with the strong \ utilizing internal resource and absorbing external advantage to greatest degree and establishes long-period collaboration and partner relationship with Xi'an high-voltage research institution \ PingGao electric and ZheJiang University, which provides technical support for new product's exploration and market enlargement. Additionally, with the advanced testing equipments, consummate after -sell service, it has been awarded as advanced departm e nt and excellent enterprise by government for many years.
The company will insist on the management idea of "Creative sprit, unceasing struggle, seek for outstand, regard talents", redound upon the clients with good products and considerate service
