What is the definition of the low voltage switchgear?

low voltage switchgear is suitable for power plants, petroleum, chemical, metallurgy, textiles, high-rise buildings and other industries, for power transmission, distribution and power conversion.

What are the performance characteristics of low-voltage switchgear?

What are the basic parameters of the low-voltage switchgear?

What are the technological characteristics of the fixed low-voltage switchgear?

What are the performance characteristics of low-voltage switchgear?

1. Reasonable design: The low-voltage switchgear can be designed as a unit installed with various electrical equipment and then combined into a functional unit;

2. Universal structure, flexible assembly: C-shaped profile meets the requirements of various structural forms, I protection grade and surrounding conditions;

3. Standard modules: low-voltage switch cabinets can be separately composed of standard unit modules such as protection, operation, conversion, control, etc., and any combination of feature can be selected;

4. Safety protection: The low-voltage switchgear adopts the isolation between the areas and the mutual isolation between the incoming and outgoing lines of the functional unit, which effectively strengthens the safety protection performance;

5. Technical parameters: The main technical parameters of low-voltage switchgear are all designed at the international leading level.

What are the basic parameters of the low-voltage switchgear?

1. Rated insulation voltage 690V

2. Rated working voltage 380V, 660V

3. Rated frequency 50Hz

4. Rated working current:

Rated current of horizontal busbar 630-6300A

Vertical bus rated current 630-1600A

5. Rated short-time withstand current

Rated peak withstand current (IS) 30-80KA

Rated short-time withstand current (IS) 30-80KA

6. Rated withstand peak current

Horizontal bus (main bus) 63-176KA

Vertical bus (branch bus) 63-176KA

What are the technological characteristics of the fixed low-voltage switchgear?

In order to ensure the shape and size of low-voltage switchgears, fixed low-voltage switchgears often adopt a step-by-step combination of components. Generally, two pieces or left and right sides are formed first, and then the cabinet is formed, or the shape requirements are met first, and then the cabinets are connected in sequence. Internal support and the length of the parts forming the edges of the cabinet must be correct (the tolerance is negative) to ensure the geometric dimensions of all aspects, thereby ensuring the overall shape requirements. For the two sides of the cabinet, due to the arrangement need, there should be no bulge in the middle.

In addition, from the perspective of installation, the bottom surface of the low-voltage switchgear must not sink. During the arrangement and installation, the foundation level is a prerequisite, but the dryness and the cabinet itself have certain errors. In the arrangement, the lateral difference should be offset as much as possible, and the difference should not be accumulated, because the accumulation of the difference will cause the cabinet to collapse. It affects the bus connection and causes the component installation to be out of place, stress concentration, and even affects the life of electrical appliances. Therefore, it is advisable to use the highest point of the foundation as the installation reference point when arranging, and then gradually expand the arrangement. Under the condition that the bottom dryness is ideal and predictable, the arrangement can also be expanded from the middle to the two sides to make the accumulated difference evenly cloth.

Zhejiang Zhegui Electric Co., Ltd has committed to providing the most suitable low-voltage switchgears at a reasonable price. To get more information, please click https://www.giant-electric.com/.