Ningbo Tianan (Group) Co.,Ltd.
| Delivery Time | 30 work days/ unit |
| Packaging Details | Wooden case |
| Output Voltage | 3.3V |
| Ambient temperature | -40 ~55℃ |
| Altitude | ≤2000m |
| Max. daily temperature difference | 25k |
| Rated voltage | 12kV |
| Rated frequency | 50Hz |
| Rated current | 630A |
| mechanical life | 10000 times |
| Brand Name | TIANAN |
| Place of Origin | CHINA |
| Model Number | FZW28F-12 |
| Certification | IEC&GB |
View Detail Information
Explore similar products
40.5KV High Voltage Load Break Switch
12kv Vacuum Load Break Switch
12KV Outdoor High Voltage Load Switch Circuit Breaker Combined Apparatus
12 Kv outdoor Load Switch / High Voltage Disconnect Switch For Electric Power
Product Specification
| Delivery Time | 30 work days/ unit | Packaging Details | Wooden case |
| Output Voltage | 3.3V | Ambient temperature | -40 ~55℃ |
| Altitude | ≤2000m | Max. daily temperature difference | 25k |
| Rated voltage | 12kV | Rated frequency | 50Hz |
| Rated current | 630A | mechanical life | 10000 times |
| Brand Name | TIANAN | Place of Origin | CHINA |
| Model Number | FZW28F-12 | Certification | IEC&GB |
| High Light | Industrial Grade Load Switch ，3.3V 1A Load Switch ，Automatic Transfer Load Switch | ||
When there is a fault in the internal user of the T connection of the 10KV distribution line, if the fault occurs at the incoming end, or if the fault occurs inside the incoming switch but the protection action time limit is not coordinated with the protection of the substation outgoing switch, it will cause the protection of the substation outgoing switch to trip. If the nature of the fault is permanent and the substation fails to coincide, an accident within a medium voltage user boundary will result in a power outage of the entire distribution line, and even single-phase grounding will cause interference to other users. This common ripple accident in the distribution network will cause unnecessary power outage losses to other normal users and have a negative impact on a society highly dependent on power supply.
The boundary load switch is an ideal device for solving the above-mentioned accidents. The device is installed at the responsibility boundary point of the 10kV distribution line and can automatically cut off single-phase grounding faults and isolate phase to phase short circuit faults. Ensure the electrical safety of non faulty users and prevent malfunctions
The user's accident has escalated. The boundary load switch control device is specifically designed for intelligent control of the boundary switch body. To achieve protection and control functions, the control device is electrically connected to the switch body through control cables and aviation connectors, realizing its protection and automatic monitoring functions. This product is widely used in urban and rural 10kV distribution user lines.
| Rated peak withstand current | 50 kA |
|
Rated short-circuit closing current (peak) |
50 kA |
| Clearance between open contacts | 9±1 |
| Altitude | Up To 3,000m Above Sea Level |
| Opening time | 20~70 ms |
| Isolation fracture distance | 25～30 ms |
| Isolation fracture overtravel | 7~14 ms |
| Three phase opening and closing asynchrony |
≤3 ms |
| Rated pressure of SF6 gas (gauge pressure) | 0 Mpa |
Company Details
Business Type:
Manufacturer,Exporter,Trading Company,Seller
Year Established:
1969
Total Annual:
250000000-300000000
Employee Number:
3000~3500
Ecer Certification：
Verified Supplier
Ningbo Tianan (Group) Co, Ltd is a famous leading influential enterprise of the power transmission equipment manufacturing in China.It was founded in 1969,currently under the group, we have 1 national-level R&D center, 2 provincial-level R&D center, 10 professional companies, 70 sales office... Ningbo Tianan (Group) Co, Ltd is a famous leading influential enterprise of the power transmission equipment manufacturing in China.It was founded in 1969,currently under the group, we have 1 national-level R&D center, 2 provincial-level R&D center, 10 professional companies, 70 sales office...
Get in touch with us
Leave a Message, we will call you back quickly!