TZN23-40.5Cseries Indoor handcart type vacuum circuit breaker
Indoor handcart type vacuum circuit breaker
Outline
TZN23-40.5C indoor handcart type vacuum circuit breaker is indoor high voltage electrical equipment with rated voltage of 40.5 kV, three-phase of AC 50Hz. As control and protection switch, it is suitable for industrial and mining enterprises, substation, and C series indoor handcart type transmission and distribution system; as control and protection equipment, it is especially suitable for metallurgy, electric arc steelmaking and other industries requiring frequency operation.
This product conforms to the GB1984-89 AC High Voltage Circuit Break standard.
Model meaning
Main technical parameters
Serial No. |
Parameter name |
Unit |
Numerical Value |
1 |
rated voltage |
kV |
40.5 |
2 |
rated lightning impulse withstand voltage (peak) |
kV |
185 |
3 |
1min power frequency withstand voltage |
kV |
95 |
4 |
rated frequency |
Hz |
50 |
5 |
rated current |
A |
1250、1600、2000 |
6 |
rated short-circuit breaking current |
kA |
25、31.5 |
7 |
rated short circuit withstand current |
kA |
25、31.5 |
8 |
rated peak withstand current |
kA |
63、80 |
9 |
rated short circuit duration |
s |
4 |
10 |
rated short circuit breaking time |
ms |
≈90 |
11 |
rated short-circuit closing current |
kA |
80 |
12 |
rated operation sequence |
|
Opening 0.3-closing and opening-180s-closing and opening |
13 |
closing time |
ms |
50~85 |
14 |
opening time |
ms |
40~85 |
15 |
rated short circuit breaking current breaking times |
times |
20 |
16 |
mechanical life |
times |
10000 |
17 |
rated capacitor bank breaking current |
A |
630 |
18 |
energy storage motor rated power |
W |
275 |
19 |
rated voltage of energy storage motor |
V |
AC/DC220.110 |
20 |
energy storage time |
S |
<15 |
21 |
switch electromagnet rated voltage |
V |
AC/DC220.110 |
22 |
rated current of overcurrent tripper |
A |
5 |
23 |
auxiliary switch rated current |
A |
10 |
Outline overall and installing dimensions
Technical description: the total width of the handcart is 1180,
The center distance between the wheel and the wheel is 1130 (front)
TZN23-40.5C/2000-31.5
Schematic diagram of series indoor handcart vacuum circuit breaker