| Type: | High Voltage |
|---|---|
| Model Number: | ZN63-12 |
| Brand Name: | Tengen |
| Place of Origin: | China (Mainland) |
| Produce name: | Vacuum Circuit Breaker |
| High voltage: | 12KV |
| Rated current: | 630,1250,1600,2000,2500,3150 |
| Rated short-time withstand current: | 20,25,31.5,40 |
| Rated peak withstand current: | 50.63.,80,100 |
| Mechanical life: | 30000 times |
| Frequency: | 50/60Hz |
| Phase: | three phase |
| AC/DC: | AC |
Quick Details
Specifications
ZN63 (VSM)-12 12kv Indoor High Voltage Vacuum Circuit Breaker
Application
ZN63(VSM)-12 12kv Indoor High Voltage Vacuum Circuit Breaker is rated voltage 12kV, three-phase AC 50Hz Indoor high-voltage switchgear ,apply for power stations, substations, industrial and mining enterprises to control or protection transmission and distribution systems , specially for the important high altitude breaking load and frequent operation place.
Main Technical Parameter
|
NO |
Item |
Units |
parameters |
|
1 |
Rated voltage |
KV |
12 |
|
2 |
Rated lightning impulse withstand voltage |
KV |
75 |
|
3 |
1min power frequency withstand voltage |
KV |
42 |
|
4 |
Rated short-circuit breaking current |
KA |
20 25, 31.5 , 40 |
|
5 |
Rated Current |
A |
630 1250, 1250 1600 2000 2500, 1250 1600 2000 2500 3150 |
|
6 |
Rated short-time withstand current |
KA |
20 25, 31.5, 40 |
|
7 |
Rated peak withstand current |
KA |
50 63, 80, 100 |
|
8 |
Rated short-circuit closing current (peak) |
KA |
50 63, 80, 100 |
|
9 |
Second loop power frequency withstand voltage(1 min) |
V |
2000 |
|
10 |
Rated operating sequence |
|
O-0.3S-CO-180S-CO, O-180S-CO-180S-CO |
|
11 |
Rated short-circuit duration |
S |
4 |
|
12 |
Mechanical life |
Times |
30000, 20000
|
|
13 |
Rated short-circuit breaking current breaking number |
Times |
50, 30 |
|
14 |
Rated Storage and operation voltage |
V |
AC/DC220 |
|
15 |
Storage life |
S |
≤10 |
|
16 |
Contact distance Contact Over-travel |
mm |
distance11±1 Over-travel 3±0.5 |
|
17 |
Rated voltage: Closing and opening time |
ms |
Closing:25~50 opening:30~50 |
|
18 |
Contact closing spring time |
ms |
≤2, ≤3 |
|
19 |
Three phase closing opening asynchrony |
ms |
≤2 |
|
20 |
Opening speed |
m/s |
0.9~1.3 |
|
21 |
Closing speed |
m/s |
0.4~0.8 |
|
22 |
Rated contact pressure |
N |
20Ka:2000±200 25KA:2400±200 31.5KA 3100±200 40KA:4250±250 |