TZN85-40.5 Indoor high voltage vacuum circuit breaker
Product characteristics
·Reinforced insulating products
·Customizable high altitude
TZN85-40.5
Indoor high voltage vacuum circuit breaker
Outline
The circuit breaker is suitable for the three-phase AC 50Hz / 40.5kV system and can be used in industrial and mining enterprises and power plants and substations. It is used as a combined load current, overload current, and short-circuit current, and can be used in frequent operation situations.
Model Description
Main technical parameters
|
Serial No. |
Item |
Unit |
参数 parameter |
|
1 |
rated voltage |
kV |
40.5 |
|
2 |
1min power frequency voltage (RMS) |
kV |
95 |
|
3 |
lightning shock withstand voltage (peak) |
kV |
185 |
|
4 |
rated frequency |
Hz |
50 |
|
5 |
rated frequency |
A |
1250、1600、2000 |
|
6 |
rated short-time withstand current |
kA |
25、31.5 |
|
7 |
rated peak tolerant current |
kA |
63, 80 |
|
8 |
rated short circuit duration |
s |
4 |
|
9 |
rated short-circuit breaking current |
kA |
25、31.5 |
|
10 |
rated short-circuit closing current |
kA |
63,80 |
|
11 |
rated operation sequence |
|
0-0.3s-C0-180s-C0 |
|
12 |
breaking time |
ms |
<80 |
|
13 |
rated short circuit breaking current breaking times |
times |
20 |
|
14 |
Single capacitor combination breaking current |
A |
630 |
|
15 |
back-to-back capacitor combination breaking current |
A |
400 |
|
16 |
rated operational voltage |
V |
-110/-110,-220/-220 |
|
17 |
mechanical life |
times |
10000 |
