china supplier 11kv HV vacuum circuit breaker with voltage protection
USD $500 - $2,500 /Set
Min.Order:1 Set
Qingdao Yonghuaxu Trading Co., Ltd.
ZN63A (VS1) -12kv Series Indoor Withdrawable Type Vacuum Circuit Breaker/VCB is rated voltage 12kV, three-phase AC 50Hz Indoor high-voltage switchgear ,apply for power stations, substations, and industrial and mining enterprises to control or protection transmission and distribution systems , specially for the important high altitude breaking load and frequent operation place.
VS1-12kv Series Indoor Withdrawable Type Vacuum Circuit Breaker/VCB manufacturing accordance with our national standard GB1984-2003 <AC high voltage circuit breakers>, DL / T403-2000<3.6 ~ 40.5kV Indoor Vacuum Circuit Breaker ordering technology>; and the related IEC standards And reliable interlock function.
Indoor Withdrawable Type Vacuum Circuit Breaker operating mechanism for the spring energy storage type, can use AC and DC energy storage operations, can also be used manually.
Circuit breaker can be equipped with long life permanent magnetic actuator, mechanical life can reached 60000 times ,can be used for extremely Frequent operation place,
Indoor Withdrawable Type Vacuum Circuit Breaker designed to repackage the structure before and after, both can be used as a fixed installation unit, Can also be equipped with the chassis as used in the mounted unit.
Model number and meaning
The use of environmental conditions for Indoor Withdrawable Type Vacuum Circuit Breaker:
1. Ambient temperature: not higher than +40 °C, not less than -15°C
2. Altitude: not exceed 1000m.
3. Relative humidity: daily average of not more than 95%, month average of not more than 90%.
4. Earthquake intensity: not more than ten.
5. No fire, explosion hazard, serious filthy, chemical corrosion, as well as places of intense vibration.
Mainly technical parameters | |||
NO | Item | Units | parameters |
1 | Rated voltage | KV | 12 |
2 | Rated Frequency | HZ | 50 |
3 | Rated Current | A | 630.1250.1600.2000.3150 |
4 | Rated short-circuit breaking current | KA | 20 25 31.5 |
5 | Rated short-circuit closing current (peak) | KA | 50 63 80 |
6 | Rated short-circuit duration | S | 4 |
7 | Rated short-circuit breaking current breaking number | nos | 50s |
8 | Rated operating sequence |
| 0-0.3s-CO-180s-CO |
9 | Rated lightning impulse withstand voltage | kv | 125 |
10 | 1min power frequency withstand voltage | KV | 65 |
11 | Closing time | ms | ≤ 70 |
12 | opening time | ms | ≤ 50 |
13 | Mechanical life | Times | 20000 |
14 | Rated Storage and operation voltage | V | AC DC 220/110 |
15 | Breaking life | ms | ≤ 80 |
16 | Storage life | s | ≤ 10 |
Adjust the parameters of mechanical properties: | |||
No | Item | Unit | Parameters |
1 | Contact distance | mm | 14±1 |
2 | Contact Over-travel | mm | 3.5±1 |
3 | Closing speed | m/s | 1.0±0.2 |
4 | Opening speed | m/s | 1.3±0.2 |
5 | Contact closing spring time | ms | ≤2 |
6 | Rated contact pressure | N | 20KA(2400±200) 25KA (2400±200) 31.5KA(3100±200) |
7 | Three phase closing opening asynchrony | ms | ≤2 |
Outline dimension
Packaging Details: Wooden Box / Wooden Frame
Delivery Detail: 20Days
our service:
1. your inquiry related to our products or prices will be replied in 24 hours.
2. well-trained and experienced staffs answer all your questions in fluent English
3. distributoershio are offered for your unique design and some of our current model
4. protection of your sale areas, ideas of design and all your private information
buy recommendation:
1. our all items are 100% authentic; pls provide all details of the address before purchase, so we can calculate the shipping deicounts and the best transportation.
2. according to your requirements, differents specifications of the items can be mixed shipments and lower freight.
3. only wholesale, if require samples or have any questions or suggestions, pls feel free to contact us.
quality & price:
1. we sell items with top quality because we want to keep every customer as our long-term business partner.
2. we set competitive price because we need to attact buyers to this new store.
3. we ship your items on time after you place orders.
after delivery:
1. if your are satisfied with the package as you received, pls be kind to leave us positive feedback, as every positive feedback from you is important to increase our credit score. we will be grateful for your doing so.
2. if unfortunately, there are any problems with the packages, pls contact us, we will solve all dissatisfations after received the pictures. we will assure your happiness with our solutions.
notice for ordering:
when ordering, pls indicate these follow imformation:
1. model, name, quantity
2. rated voltage, rated current, rated short-circuit drop-out current of the breaker
3. rated operation voltage
4. secondary wiring program (optional)
5. name and quantity of spare parts
6. any other special requirements
1. Q: | What is your delivery time ? |
A: | Depend on the type of transformer. |
2. Q: | What is your payment term? |
A: | 30% advance by T/T , 70% before delivery by T/T or L/C or we can discuss about it. |
3. Q: | What kind of starndard you follow? |
A: | IEC, ANSI, CSA, GB, etc |
4. Q: | What kind of supporting documentation you can provide normally |
A: | Quotation,outline drawing,manufacturing plan, quality control plan |
5. Q: | What is your normal wanrranty period? |
A: | 12 months after transformer operation. |
6. Q: | Do you have any experience in this kind of transformer? |
A: | Yes, we can provide reference list for check. |
7. Q: | Are you manufacturer or trading company? |
A: | Manufacturer and Trading company. |