Outdoor ZW7 - 40.5 30KV 33 KV 35KV 1250A 2000A 25KA Porcelain Pole VCB Vacuum Circuit Breaker with Spring Operation Mechanism
Product Information
ZW7-40.5 Type vacuum circuit breaker is mainly used for outdoor 35kV power transmission system control and protection also applies to urban and rural power distribution networks and industrial and mining enterprises in the normal operation and short circuit protection purposes. The overall structure of the insulator pillar product type; built vacuum interrupter type on the vase, porcelain vase for the next pillar vase. For frequent operation place. And has good sealing, anti-aging, high pressure, no burning, no explosion, long life, convenient installation and maintenance features.
Applicable conditions
- Ambient temperature:-30ºC~+40ºC
- Ambient humidity: the average humidity of a day should be no more than 95%:the average humidity of a month should be no more than 90%.
- Earthquake intensity: not exceeding 8 degrees.
- Saturated vapor pressure: the average pressure of a day should be no more than 2.2kPa: the average pressure of a month should be no more than 1.8kPa.
- The height above sea level:1000m.
- Air filthy degree: III degrees.
- It should be installed in places without fire, explosion, series fifth, chemical erosion and violent vibration.
Outline Mounting Dimensions
Technical Parameters
| Item |
Unit |
Parameter |
| Voltage, current parameters |
|
|
| Rated voltage |
kV |
40.5 |
| Rated short-time power frequency withstand voltage (Imin) |
kV |
95 |
| Rated lightning impulse withstand voltage (peak) |
kV |
185 |
| Rated current |
A |
1250, 1600, 2000 |
| Rated short-circuit breaking current |
kA |
25, 31.5 |
| Rated operating sequence |
|
O-0.3s-CO-180s-CO |
| Rated short-circuit current breaking times |
times |
12 |
| Rated short-circuit closing current (peak) |
kA |
63.80 |
| Rated peak withstands current |
kA |
63.80 |
| Rated short-time withstand current |
kA |
25, 31.5 |
| Rated short-circuit current duration |
S |
4 |
| Average opening velocity |
ms |
1.5±0.2 |
| Average closing speed |
ms |
0.7±0.2 |
| Contact closing bounce time |
ms |
<5 |
| Three-phase close (open) synchronization error |
ms |
<2 |
| Closing time |
ms |
<150 |
| Opening time |
ms |
<60 |
| Mechanical life |
times |
10000 |
| Rated operational voltage and auxiliary circuits rated voltage |
V |
DC220, AC220 |
| DC resistance of circle every phase (not including transformer) |
μΩ |
<100 |
| Dynamic, static contact allowed to wear thickness |
mm |
3 |
| Weight |
kg |
800 |
Detail Images
NOTES: Supports OEM, so there are other sizes or material requirements that can be produced according to requirements
Company Profile
Workshop Corner
Testing Equipment
FAQ
Q: Are you a trading company or manufacturer?
A: We are factory with more than 20 years of experience in this field.
Q: Can I get a sample before the bulk order?
A: Yes, we welcome sample orders to test and check quality. Mixed samples are
acceptable.
Q: Can we print our logo/ company name on products?
A: Yes, of course, we accept OEM, then need you to provide brand authorization to us
Q: Do you accept product customization?
A: Yes, of course, please provide specific drawings or parameters, we will quote you after the evaluation
Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days. if the goods are not in stock, it is according to the quantity
Q: How to solve quality problems after sales?
A: Take photos of the quality problems and send them to us for our checking and confirmation, we will make a satisfactory solution for you within 3 days.
Q: What are your terms of payment?
A: 30% T/T in advance, balance before shipment.
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