Whatsapp
This outdoor high voltage load switch is engineered for reliable switching and protection in medium-voltage distribution networks. Designed with a vacuum arc extinguishing structure combined with a mechanical isolating system, it ensures stable interruption performance under load and fault conditions. It is widely applied in power distribution systems for utilities, industrial plants, mining facilities, and chemical infrastructure, where operational safety and continuity are critical.
The product adopts a modular structural layout that simplifies installation on pole-mounted or substation configurations. Its sealed insulation system enhances environmental adaptability, allowing stable operation under humidity, dust, and temperature fluctuations. In practical engineering applications, the Outdoor High Voltage Load Switch is often used as a key switching device in ring main units and distribution automation systems.
|
Project Name |
Parameter value |
|
|
Rated voltage |
12KV |
|
|
Rated frequency |
50Hz |
|
|
Rated current |
630A |
|
|
Rated active load breaking current |
630A |
|
|
Rated closed-loop breaking current |
630A |
|
|
5% of rated active load breaking current |
31.5A |
|
|
Rated cable charging and breaking current |
10A |
|
|
Rated no-load transformer breaking capacity |
1600KVA |
|
|
Rated breaking current of capacitor bank |
100A |
|
|
1-minute power frequency withstand voltage |
42/48KV |
|
|
Lightning impulse withstand voltage |
75/85KV |
|
|
Rated short-time withstand current (thermal stability) |
20KA |
|
|
Rated short-circuit duration |
4S |
|
|
Rated peak withstand current (dynamic stability) |
50KA |
|
|
Rated short-circuit making current |
50KA |
|
|
Mechanical life |
10000次 |
|
|
Permissible wear thickness of vacuum arc extinguishing contacts |
1mm |
|
|
Manual operating torque |
≤200N.m |
|
|
Assembly and adjustment of vacuum interrupter |
Contact gap |
5±1mm |
|
Average switching speed |
1.1±0.2m/s |
|
|
Three-phase tripping is not simultaneous |
＜5ms |
|
|
Three-phase switching is not synchronized |
＜2ms |
|
|
Distance to ground |
＞200mm |
|
|
Main circuit resistance |
≤150μΩ |
|
In distribution automation systems, the Outdoor High Voltage Load Switch is typically installed on pole-mounted lines or compact substations to enable sectional switching and fault isolation. It supports manual and motor-driven operation, making it suitable for both traditional grids and smart grid upgrades.
From a maintenance perspective, it is designed with a sealed structure and wear-resistant contacts, reducing the need for frequent servicing and improving lifecycle cost efficiency in long-term operation.
Q1: Where is the Outdoor High Voltage Load Switch commonly used?
A: It is widely used in 10kV–12kV distribution systems, including industrial plants, mining sites, substations, and rural power grid upgrades for load switching and fault isolation.
Q2: Can it support remote operation?
A: Yes, it can be equipped with an electric actuator and remote control module for integration into automated distribution networks.
Q3: What maintenance is required for this equipment?
A: Due to its sealed and vacuum arc-extinguishing design, routine maintenance is minimal, mainly periodic inspection of terminals and operating mechanism condition.
Address
Building 3, Yueqing Digital Intelligent Economy Electrical Industrial Park, Liushi Town, Yueqing City, Wenzhou, Zhejiang Province, China
