XUCKY Electric as a manufacturers & suppliers of ZW7-40.5 Series Outdoor High Voltage Vacuum Circuit Breaker in China for more than 25 years, the performance of its oil immersed transformer is according with IEC60076, GB1094, GB/T6451. Meanwhile our distribution transformer has won great reputation with high quality and good price in Russia, South Asia, Africa, Middle East and South America. We provide customization and technical supporting. Feel free to contact us for a competitive quotation and all technical supports online!
ZW7-40.5 outdoor HV vacuum circuit breaker is a 3-phase AC 50Hz 40.5kV outdoor switch equipment.
♦ Installation way: foundation installation;
♦ Operating mechanism: spring operating mechanism and electromagnetic operating mechanism;
♦ Pole material: silicone rubber, ceramic;
♦ Application: outdoor 33kV substation, power plant.
♦ Current transformer: in-buit installation, external installation.
♦ IEC62271-100 High Voltage Switchgear and Controlgear Part 100: AC Circuit-breakers
♦ GB1984 High Voltage AC Circuit-breakers
♦ GB/T11022 Common Specifications for High-voltage Switchgear and Controlgear Standards
♦ JB/T 3855 High Voltage AC Vacuum Circuit-breakers
♦ DL/T402 Specification of High-voltage AC Circuit-breakers
♦ Ambient temperature: -40°C~+40°C;
♦ Altitude: <1000m;
♦ Maximum wind speed is 10km/h, minimum wind speed for the rated level (132/230kv) is 3.2km/h;
♦ Earthquake intensity: <8 level;
♦ Minimum nominal creepage distance: 31mm/kV;
♦ Air pollution degree: Class IV.
|
No |
Item |
Unit |
Value |
|
|
1 |
Rated voltage |
kV |
40.5 |
|
|
e |
Ratedinsulationlevel |
1 min power frequencyDry test (fracture, inter-phase, to earth)Wet test (to earth, external insulation) |
kV |
95 85 |
|
Lightning impulse withstand voltage(peak) |
185 |
|||
|
3 |
Rated current |
A |
1250, 1600, 2000, 2500 |
|
|
4 |
Rated short circuit breaking current |
kA |
20, 25, 31.5 |
|
|
No |
Item |
Unit |
Value |
|
5 |
Rated short circuit making current (peak) |
kA |
50, 63, 80 |
|
6 |
Rated peak withstand current |
kA |
50, 63, 80 |
|
7 |
Rated short time withstand current |
kA |
20, 25, 31.5 |
|
8 |
Rated operating sequence |
|
O-0.3S-CO-180S-CO |
|
9 |
Rated short circuit breaking current breaking number |
times |
20 |
|
10 |
Rated short circuit duration |
s |
4 |
|
11 |
Breaking time |
s |
≤0.09 |
|
12 |
Mechanical life |
times |
10000 |
|
13 |
Newly manufactured vacuum interrupter |
Ps |
≤1.33×10-3 |
|
Vacuum interrupter during 20-year storage time |
<6.6×10-2 |
||
|
14 |
Circuit breaker net weight |
kg |
800 |
|
15 |
Clearance between open contacts |
mm |
22±2 |
|
16 |
Contact travel |
mm |
4±1 |
|
17 |
Average opening speed |
m/s |
1.4-1.7 |
|
18 |
Average closing speed |
m/s |
0.4-0.7 |
|
19 |
Contact closing bounce time |
ms |
≤3 |
|
20 |
Inter-phase opening and closing synchronism |
ms |
≤2 |
|
21 |
Closing time |
ms |
50≤t≤200 |
|
22 |
Opening time |
ms |
30≤t≤60 |
|
23 |
Each phase main circuit DC resistance (not includeCT internal resistance) |
μΩ |
≤100 |
|
24 |
Dynamic and fixed contact cumulative thickness allowed to wear |
mm |
3 |
|
25 |
Rated contact pressure |
N |
2500±200 |
♦ Side-mechanism type
♦ Mid-mechanism type
Address
No.2567 Liuqing South Road, Liushi, Yueqing, Wenzhou, Zhejiang, China
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