Our country has the most vast plateau area in the world. With the development of the western part of the country and the development of the energy economy in the western part of the country, the demand for electrical equipment in the plateau area is increasing day by day. As a pioneer industry, the electric power industry faces its unique environmental characteristics. : In plateau climates such as thin air, low air pressure, low oxygen content, large temperature difference between day and night, low temperature soil movement, strong ultraviolet radiation, heavy wind and dust, low rainfall, and dry climate, the performance requirements are also constantly increasing.

Facing the current situation:

1. Air pressure, air density is low, insulation strength is weakened, and heat dissipation conditions are poor

2. The temperature is low, the temperature difference between day and night is large, and components wear out quickly.

3. Low absolute humidity, low precipitation, long frozen soil period, and harsh environment.

Our values:

Chuanglian Huitong Electrical Box Transformer has been committed to creating a highly reliable power supply environment with quality and professionalism for many years. Based on the site environment and operating characteristics, we provide a series of customized solutions and small, compact, highly reliable, and maintenance-free core products to bring safer and more reliable power distribution equipment to plateau areas and provide users with strong power protection.

Solutions for component selection in plateau areas:

High-voltage devices: Select special electrical equipment specially developed for high-altitude areas, such as plateau-type transformers, plateau-type vacuum circuit breakers, etc. The air gaps between conductors in the cabinet and between conductors and ground should be treated according to the insulation distance requirements of high-altitude areas to prevent Insulation breakdown, or the use of higher voltage electrical equipment, such as voltage and current transformers and insulator bushings, etc., to meet the above coefficients that need to be corrected for the increase in altitude, such as their electrical clearances and creepage distances.

Control elements: control devices, generally electronic devices, weak electrical control, high reliability, less affected by altitude.

Low-voltage components: the main switch of low-voltage switchgear its insulation voltage according to the appropriate selection of altitude, such as the normal grid rated voltage of 400V, at 4000m altitude, can choose insulation voltage of 1000V frame switch and plastic shell switch, ensure that the outer insulation strength margin larger, thus reducing the impact of low air pressure at high altitude.

Low-voltage current transformer and so on must choose the special treatment to enlarge the climb distance and the electric gap product, guarantees the secondary side power frequency withstand voltage and so on target to be able to pass, other secondary side weak current device carries on the choice according to the ordinary type device.

Insulation material: select the insulation material with little change in temperature difference and high anti-aging degree (such as DMC or SMS molding material, etc.) , while ensuring high strength, less deformation and aging degree, to adapt to its high requirements for insulation coordination, and should pay attention to altitude correction factor requirements of creepage distance, electrical gap size requirements.