12KV High-voltage Vacuum circuit breaker
Product Details:
| Type | Vacuum |
|---|---|
| Poles Number | 3 |
| Place of Origin | Zhejiang, China (Mainland) |
| Model Number | ZW8-12 |
Payment & Shipping Terms:
| Minimum Order Quantity: | 1 Set/Sets |
|---|---|
| Packaging Details: | Wooden packaging |
| Delivery Time: | 25 days |
| Payment Terms: | L/C,T/T |
Detailed Product Description
12KV High-voltage Vacuum circuit breaker
Application:
1) ZW8-12,ZW8-12G series high-voltage vacuum circuit breaker is a kind of outdoor high-voltage switch equipment with 50Hz three-phase alternating current 12Kv rated voltage.
2) It mainly apply to break and close the load current,overload and short-circuit in country power net,city power net and minitype power system.The general framework of this product is adopted the form of three-phase using same box,i.e.put the three-phase arc-extinguishing chamber inside of the metal box.For the SMG material has the advantage of space insulation and grounding insulation,the breaker has perfect performance and high insulation strength.
3) ZW8-12G is composed of ZW8-12 breaker and disconnecting link that we called combination breaker.It can be used as sectional switch.
4) These series products have the operation framework of CT23 type power storage with spring,which can divide into eletromotion type and manual type.
Technical parmeter:
Sequence number | Item | Unit | Data | ||||||
6.3KA | 12.5KA | 20KA | |||||||
1 | Rated voltage | KV | 12 | ||||||
2 | Rated current | A | 630 | ||||||
3 | Rated short-circuit break and close current | KA | 6.3 | 12.5 | 20 | ||||
4 | Rated short-circuit close current(peak value) | KA | 16 | 31.5 | 50 | ||||
5 | Rated peak value withstand current | KA | 16 | 31.5 | 50 | ||||
6 | Rated little 1min withstand current | KA | 6.3 | 12.5 | 20 | ||||
7 | Rated insulation 1evel | Industrial frequency withstand voltage(dry) | KV | 42 | |||||
Thunder impulse withstand voltage(peak value) | 75 | ||||||||
8 | Tated operation the order | Off-0.3S-on and off-180S-on and off | |||||||
9 | Mechanical life-span | times | 10000 | ||||||
10 | Rated short-circuit current break and close time | times | 30 | ||||||
11 | Speak and move organization amount assign the current of the floodgate | V | 110,220 | ||||||
12 | Speak and move organization amount assign the current of the floodgate | V | 110,220 | ||||||
13 | Switching distance of the contact | mm | 11±1 | ||||||
14 | Uitra journey(touches the head spring and compress length) | mm |
| ||||||
15 | three-phase breaking intoshut folldgate sex of the same period | ms | ≤2 | ||||||
16 | Touch the head and shut a floodgate of time of bouncing | ms | ≤2 | ||||||
17 | Average speed of breaking brake | m/s | 1.0±0.2 | ||||||
18 | Average speed of closing brake | m/s | 0.7±0.15 | ||||||
19 | Time of breaking brake | Operate it under the voltage highest | s | 0.015-0.05 | |||||
Operate it under the voltage the mostlow | 0.03-0.06 | ||||||||
20 | Time of closing brake | s | 0.025-0.05 | ||||||
21 | Each the resistance of main reture circuit | μΩ | ≤120 | ||||||
22 | Allowance abrasion cumulated thickness of the moving and stationary contact | mm | 3 | ||||||
Dimension, mounting and more detailed product information, welcome to contact us......
12KV High-voltage Vacuum circuit breaker
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Company Info
Zhejiang Sentai Electrical Apparatus Factory
[China (Mainland)]
[Verified Member]
City: Wenzhou
Province/State: Zhejiang
Country/Region : China (Mainland)
Business Type:Manufacturer, Trading Company
Online Postings: Products