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Factory direct sales ZW7 outdoor 35kV intelligent high-voltage circuit breaker
Description: The manufacturer directly sells ZW7 outdoor 35kV intelligent high-voltage circuit breaker. This product is equipped with CT19BW spring op
Product details
Factory direct sales ZW7 outdoor 35kV intelligent high-voltage circuit breaker
overview
The ZW7-40.5 series outdoor high-voltage AC vacuum circuit breaker is commonly used in two models: ZW7-40.5/1250-25 (31.5) and ZW7-40.5M/1250-25 (31.5). It is mainly suitable for power distribution systems with a rated voltage of 40.5KV and an AC frequency of 50Hz and below. This product is equipped with CT19BW type spring operated mechanism or CD type electromagnetic operated mechanism, so it has many advantages such as good breaking capacity, high safety and reliability, frequent operation, and minimal maintenance. This product can also be used for connecting circuit breakers and switching capacitor banks for cutting no-load long lines.
U has extremely high reliability
U is completely maintenance free throughout its entire lifespan
U has high mechanical and electrical lifespan
The whole machine has a small volume, light weight, and is easy to install
1.1 Usage conditions
Surrounding air temperature: -30 ℃ to+60 ℃;
Altitude: not exceeding 2000 meters;
Wind speed not exceeding 34m/s;
External vibrations or ground movements from switchgear and control equipment can be ignored;
Pollution level: Level IV;
Storage temperature: -40 ℃ to+85 ℃.
1.2 Technical Parameters
Main technical parameters of circuit breaker
Serial number |
Project |
unit |
Numerical value |
1 |
rated voltage |
kV |
40.5 |
2 |
Rated current |
A |
1250/1600/2000/2500 |
3 |
Rated frequency |
Hz |
50 or 60 |
4 |
Power frequency withstand voltage for 1 minute (wet) (dry) Interphase, ground/fracture |
kV |
80 95/95 |
5 |
Lightning impulse withstand current (peak value) Interphase, ground/fracture |
kV |
185 |
6 |
Rated short circuit breaking current |
kA |
25/31.5 |
7 |
Rated short-circuit closing current (peak) |
kA |
63/80 |
8 |
Rated peak withstand current |
kA |
63/80 |
9 |
4S short-time withstand current |
kA |
25/31.5 |
10 |
Rated operating cycle |
Split -0.1s - Split -3s - Split -6s - Split -60s Recovery |
|
11 |
Rated short-circuit current breaking times |
order |
30 |
12 |
mechanical life |
order |
10000 |
13 |
Institutional control voltage |
V |
AC/DC220 |
14 |
Secondary circuit 1-minute power frequency withstand voltage |
KV |
2 |
Factory direct sales ZW7 outdoor 35kV intelligent high-voltage circuit breaker
Main mechanical parameters of circuit breakers
Serial number |
Parameter |
unit |
Data |
1 |
clearance between open contacts |
mm |
18±1 |
2 |
Contact overtravel |
mm |
4±0.5 |
3 |
opening speed |
m/s |
1.4-1.8 |
4 |
closing speed |
m/s |
0.4-0.8 |
5 |
Contact closing bounce time |
ms |
≤5 |
6 |
Center distance between phases |
mm |
710±2 |
7 |
Three phase opening and closing asynchrony |
ms |
≤2 |
8 |
Resistance of each phase conductive circuit |
μΩ |
＜80 |
9 |
close time |
ms |
≤100 |
10 |
Opening time |
ms |
≤50 |
11 |
weight |
Kg |
About 800 |
35KV Outdoor High Voltage Vacuum Circuit Breakerpurchasing process
1. Purchasing department, inform the product specifications, models, and quantities
2. Communicate with the technical department to confirm the drawings and verify the parameters
3. The Ministry of Commerce drafts contracts based on technical agreements and places orders for production
4. The production department produces according to the drawing parameters of the technical department and the order table of the business department
5. Delivery department customer's shipping address and - shipping
6. Receipt follow-up: Salespeople promptly follow up on customer receipt and provide feedback to the company
7. Follow up on customer satisfaction with product usage in the office, conduct market research to better serve customers and the market
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