24kv ZW32 Outdoor High Voltage Vacuum Circuit Breaker
1. Summary
ZW32-24 type outdoor high voltage vacuum
circuit breaker is three-phase AC,50(60)Hz outdoor power distribution
equipment
with the rated voltage of 24kv,Used to open and close the load current, over
load current, and short circuit
current in the electric power system.
Also used
to protect and control the circuit in substation, mining and industrial
enterprises, and frequently used in
the operation places such as rural power
network.
2. Using environmental conditions
A. The altitude above sea level does not over 2,000 meters;
B. Surrounding air temperature: -40 ℃ ~+40 ℃ ;
C. The wind speed is not bigger than 34m/s;
D. The air filthy should be with in Ⅲ degree
E. Installing places: Not flammable, the explosion hazard, chemistry corrode place;
F. Does not have the regular fierce
vibration
3. Technical parameter
Table 1 Circuit Breaker's Main Technical Data
No. |
Item |
Unit |
Data |
|
1 |
Rated voltage |
kV |
24 |
|
2 |
Rated frequency |
Hz |
50 |
|
3 |
Rated current |
A |
630/1250 |
|
4 |
Rated short-circuit breaking current |
kA |
20/25 |
|
5 |
Rated peak withstand current(peak) |
50/63 |
||
6 |
Rated short-time withstand current |
20/25 |
||
7 |
Rated short-circuit making current(peak) |
50/63 |
||
8 |
Mechanical life |
Time |
10000 |
|
9 |
Breaking times of rated short-circuit |
Time |
20 |
|
10 |
Power
frequency withstand |
Dry |
kV |
65 / 79 |
Wet |
50 / 60 |
|||
11 |
Lightning impulse withstand voltage(peak) |
125 / 145 |
||
12 |
Rated operating sequence |
|
O-0.3S-CO-180S-CO |
|
13 |
Rated operating voltage |
V |
AC/DC220 |
|
14 |
Secondary circuit power frequency withstand voltage (1min) |
V |
2000 |
|
Circuit Breaker's Main Mechanical Data |
||||
No |
Item |
Unit |
Data |
|
1 |
Rated voltage |
kV |
24 |
|
2 |
Clearance between contacts |
mm |
12±1 |
|
3 |
Contact’s overt-travel |
mm |
3.5±1 |
|
4 |
Open speed |
m/s |
1.4±0.2 |
|
5 |
Closing speed |
m/s |
0.7±0.2 |
|
6 |
Contact closing jumping time |
ms |
≤2 |
|
7 |
Pole center distance |
mm |
380±1.5 |
|
8 |
Three pole open/close non-simultaneity |
ms |
≤2 |
|
9 |
Each pole conducting circuit resistance |
μΩ |
≤70 |
|
10 |
Open time |
ms |
20-60 |
|
11 |
Closing time |
ms |
25-60 |
|
12 |
Motor’s rated power |
W |
40 |
4. Outline Dimension Drawing
Tel: 0086-574-88431113
Fax: 0086-574-88478873
Email: info@macwey.com
Web: www.macwey.com
Add: No.218 Weier Road,Chongshou
Industrial Park, Cixi City
(Ningbo), China
Fax: 0086-574-88478873
Add: No.218 Weier Road,Chongshou Industrial
Park, Cixi City(Ningbo), China