High voltage distribution cabinets are responsible for the distribution, control, protection, and monitoring of high voltage electricity, and are widely used in the power control industry, including power plants, substations, industrial enterprises, high-rise buildings, and other scenarios. Shouke® is a professional manufacturer of distribution cabinets with mature technology and professional personnel, capable of providing customized services.
High voltage distribution cabinets refer to electrical products used in power systems for generation, transmission, distribution, energy conversion and consumption, which play roles such as on-off, control or protection, with voltage levels ranging from 3.6kV to 550kV. They mainly include high-voltage circuit breakers, high-voltage disconnectors and grounding switches, high-voltage load switches, and high-voltage automatic reclosers and sectionalizers. Several major categories include high-voltage operating mechanisms, high-voltage explosion-proof distribution devices, and high-voltage switch cabinets, etc. The high-voltage switchgear manufacturing industry is an important component of the power transmission and transformation equipment manufacturing industry and holds a very significant position in the entire power industry.
Safe and reliable
Metal shell protection: High voltage electrical appliances and circuits are enclosed in grounded metal shells, effectively preventing personnel from accidentally touching live parts and foreign objects (such as small animals and dripping water) from entering, greatly improving the safety of operation and running.
The "five prevention" interlocking function: It has a complete mechanical or electrical interlocking device, which can effectively prevent misoperation (such as live closing of grounding switches, load pulling of isolation switches, etc.), which is its core safety advantage.
High integration and space saving
Compact combination of various devices such as circuit breakers, isolating switches, transformers, protective relays, measuring instruments, etc. in one or several cabinets, with a compact structure and small footprint, especially suitable for substations and distribution rooms with limited space.
Easy to operate and maintain
The main electrical components are arranged inside the cabinet, with clear operation and maintenance channels. Modern high-voltage cabinets often adopt a handcart (mid mounted) design, where important components such as circuit breakers can be easily pulled out of the cabinet for maintenance or replacement without the need for power outages to handle the entire circuit, thereby improving power supply reliability.
Relatively high cost
Due to its complex structure, large amount of metal materials (such as copper, aluminum, steel), and precise protection and control units, the initial purchase and installation costs of high voltage distribution cabinets are relatively high.
There are requirements for the operating environment
It needs to be installed in a dedicated distribution room that is dry, clean, and free of corrosive gases and dust, with certain requirements for environmental temperature, humidity, and cleanliness to ensure its insulation performance and long-term stable operation.
Maintenance requires professional knowledge
The structure is complex, and the internal electrical connections are closely connected. Its operation, maintenance, and fault diagnosis all need to be carried out by professionally trained electrical personnel. Non professionals are strictly prohibited from operating, and the maintenance cost and technical threshold are high.
When selecting a high voltage distribution cabinet, it is essential to first ensure that its rated voltage, rated current, and short-circuit breaking capacity meet the system requirements. The main wiring scheme and cabinet type need to be determined based on the nature of the load, capacity, and operation mode.
Secondly, we should pay attention to the brand and quality of core components, such as the selection and performance of vacuum circuit breakers and relay protection devices. The cabinet structure should be sturdy, with good insulation performance, and equipped with "five-prevention" interlocking functions to ensure operational safety.
We also need to consider the usage environment, such as altitude, humidity... and choose the corresponding indoor or outdoor type. At the same time, reserve appropriate spare circuits to allow for future expansion.
Finally, in combination with the project budget, products with high cost-effectiveness should be selected, while ensuring safe and reliable operation.
As a professional manufacturer in China, Shouke® has strong technical strength and perfect after-sales service.For more information, please consult.
