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Help CenterChina Manufacture ZW7-40.5 Series Outdoor High Voltage Vaccum Circuit Breaker
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ZW7-40.5 series outdoor high voltage vacuum circuit breaker is three hase AC 50Hz, rated voltage is 40.5kV outdoor high-voltage electrical equipment , attached the spring operator or electromagnetic actuator can be well controlled electric opening and closing can also be Manual storage, manually open and close. Design performance meet GB1984-89 <AC high voltage circuit breakers>; national standards, and meet the IEC-56 <highvoltageAC circuit breakers> ; International Electro-technical Commission standards. ZW7-40.5 series 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.
| Item | Units | Value | ||
| Rated voltage | KV | 40.5 | ||
| Rated insulation level | 1min power frequency withstand voltage | Dry | 95 | |
| Wet | 80 | |||
| Lighting impulse withstand voltage(peak) | 185 | |||
| Rated current | A | 1250,1600,2000 | ||
| Rated short-circuit breaking current | KA | 20,25,31.5 | ||
| Rated operating sequence | O-0.3s-CO-180s-CO | |||
| Rated short-circuit breaking current breaking times | times | 20 | ||
| Rated short- circuit closed current (peak) | KA | 50,63,80 | ||
| Rated peak withstand current | ||||
| Rated short-time withstand current | 20,25,31.5 | |||
| Rated short-circuit duration | s | 4 | ||
| Average opening speed | ms | 1.5±0.3 | ||
| Average closing speed | 0.6±0.3 | |||
| Contact closing bounce duration | ms | ≤ 5 | ||
| Three phase closing and opening synchronism | ≤ 2 | |||
| Closing time | ≤ 90 | |||
| Opening time | ≤ 60 | |||
| Mechanism life | times | 10000 | ||
| Rated operating voltage and auxiliary loop rated voltage | V | DC110/220 | ||
| AC110/220 | ||||
| Phase loop DC resistance (without current transformer) | µ Ω | ≤ 100 | ||
| Permitted accumulate wear-thickness of dynamic and static contact | mm | 3 | ||
| Weight | kg | 800 | ||
a. Delivery term:
We will delivery for you after you done the full payment within 7 to 20 working days.
b. Payment:
Usually,we accept T/T, irrevocable L/C at sight ,for regular order ,we prefer 50% in advance ,50% against the copy of B/L
1.We have a professional and efficient team. Young R&D team with experienced, our team average age is 13 years and the staff longest experience in the industry field are over xxx years while the shortest one are more than 20 years.
2.Our products manufacturing process are in accordance with GB/T19001-2008 quality management system requirements and technical standards are in accordance with GB11022 / DL404 IEC60694 which could guarantee delivering time & excellent quality for the clients.
3.The price advantage: our company has established complete supplier evaluation & supervision system, strict control of production cost and strive to provide the optimized cost-effective products for clients
4.Professional and timely after-sales service: Based on all products standardized design, we can provide users with the most convenient and fast service, our 24 hours service telephone: 0086-532-80771657.
5.Team trust, cooperation, commitment, loyal customers, strict compliance and deliver on time.
Q: How do you control the quality ?
A: We have QC team comply with TQM,each step is in compliance to the standards,At the same time ,we will take photos and shoot video for you .
Q: What about lead or shipping time?
A: The lead time depends on quantity you ordered ,but generally within 40-50 days upon receipt of advance payment.
Q: How long does it take for me to get the quotation.
A: For customized products, we will quote after you provide the requested product detailes within 48 hours beacuse we need the time to calculate cost, but we will quote the soonest possible. for our standard product posted here we can quote in 24 hours.
Q: Why should I choose your company?
A: We take customers's requirments as our mission,and take each details very carefully. We have about 15 years experience for electric power business. We try to support our customers always,including delivery time,price ,pre-sale,after-sales,though We are not the best,but we are always to improve ourself and meet your needs.Choose us ,will don't make you disappointed.
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