Why has the pole mounted circuit breaker become a key device in the automation upgrade of the distribution network?
Publish Time: 2025-06-10
In modern power systems, the stable operation of the distribution network directly affects the power supply quality and power safety. As an important device for realizing line segmentation, fault isolation and automatic control in the distribution network, the pole mounted circuit breaker is widely used in urban and rural power grid transformation, industrial park power distribution and smart grid construction due to its high reliability, strong environmental adaptability and intelligent expansion capability.
The ZW20-12 outdoor pole-mounted demarcation circuit breaker switch is a high-voltage switchgear with mature technology and stable performance. It adopts an advanced box-type sealed structure design and is filled with SF6 insulating gas. It has excellent sealing performance, effectively isolates external dust, moisture and bad weather, and ensures the long-term stable operation of internal components. This fully sealed structure makes it maintenance-free, greatly reducing the daily operation and maintenance costs, especially suitable for installation in remote or complex areas.
Compared with traditional pole-mounted switches, ZW20-12 not only has excellent mechanical properties, but also integrates a number of practical functions. Its spring operating mechanism adopts a direct-acting chain main drive mode, combined with a multi-stage tripping system, with rapid action response and high stability, and can maintain reliable opening and closing performance under frequent operation and complex working conditions. At the same time, the circuit breaker is equipped with a spring energy storage indicator, which can intuitively judge the mechanism status, so that on-site operators can quickly grasp the operation of the equipment.
In addition, the ZW20-12 pole mounted circuit breaker also integrates a variety of protection and monitoring functions. For example, the built-in overcurrent protection module can automatically cut off the power supply in the case of short circuit or overload to prevent the expansion of accidents; the action counter can record the number of circuit breaker operations, providing data support for equipment status assessment and maintenance plans. The addition of these functions enables the device to not only complete basic on-off tasks, but also participate in the fault detection and automatic recovery of the distribution network to a certain extent, and improve the overall system intelligence level.
In order to meet the needs of modern distribution networks for remote monitoring and automatic control, the circuit breaker is also equipped with a standard aviation socket for secondary electrical connection, which is convenient for docking with various intelligent controllers. By accessing intelligent terminal devices (such as FTU), remote communication, remote control of opening and closing, and telemetry collection can be realized. It is a key link in building an intelligent distribution network and realizing "fault self-healing" and "unmanned operation".
From the application perspective, ZW20-12 pole mounted circuit breaker is particularly suitable for locations such as branch points and user demarcation points of 10kV distribution lines. It can accurately isolate the fault area, reduce the scope of power outages, and improve power supply reliability and operation and maintenance efficiency. Whether it is the upgrade and transformation of urban distribution networks or the intelligent construction of rural power grids, this product has shown good adaptability and practicality.
In summary, ZW20-12 pole mounted circuit breaker is becoming an indispensable core equipment in the distribution network automation system with its excellent sealing performance, stable operating mechanism, perfect protection function and good intelligent expansion capability. It not only improves the operating efficiency and safety of the power system, but also lays a solid foundation for the development of future smart grids.
