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Address: 4-2, Building E, Huazhong Enterprise City, 16 North Avenue, Hankou, Wuhan City

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GCK(L) low-voltage withdrawable switchgear

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Overview GCK(L) low-voltage withdrawable switchgear is suitable for low-voltage distribution systems with AC 50Hz and rated working voltage 380V. It includes the functions of power center (PC) and motor control center (HCC). All technical parameters meet the national standards. It has the characteristics of advanced structure, beautiful appearance, high electrical performance, high protection level, safety and reliability, and convenient maintenance. It is an ideal power distribution device for low-voltage power supply system in metallurgy, petroleum, chemical, electric power, machinery, textile and other industries. This product complies with IEC-439 and GB7251.1-97 standards. Features GCK(L)1 and GCJl are assembled composite structures. The basic framework is made of special profiles and assembled. The cabinet frame, part size and opening size shall be changed according to the basic modulus E = 25mm. In the MCC scheme, the cabinet is divided into five areas (rooms): horizontal bus area, vertical bus area, functional unit area, cable room and neutral grounding bus area. Each district is isolated from each other to ensure the normal operation of the line and effectively prevent the expansion of the fault. Since all the structures of the frame are fastened by screws, welding deformation and stress are avoided, and the accuracy is improved. The parts have strong versatility, good applicability and high degree of standardization. The extraction and insertion of the functional unit (drawer) are operated by levers, and the operation is light and reliable with rolling bearings. Normal use of environmental conditions ● altitude does not exceed 2000 meters. ● The ambient air temperature is not higher than +40 ℃, not lower than -5 ℃, and its average temperature is not higher than +35 ℃ within 24 hours ● Atmospheric conditions: the air is clean, the relative humidity is not more than 50% at temperature +40 ℃, and larger relative humidity is allowed at lower temperature, for example, 90% at +20 ℃. ● There is no fire, explosion hazard, serious pollution, chemical corrosion and severe vibration of the place. ● The control center is suitable for transportation and storage at the following temperatures:-25 ℃ ~ +55 ℃, not exceeding +70 ℃ in a short time (not exceeding 24h).


Product Details


Overview
GCK(L) low-voltage withdrawable switch cabinet is suitable for low-voltage distribution system with AC 50Hz and rated working voltage 380V. It includes the functions of power center (PC) and motor control center (HCC). All technical parameters meet the national standards. It has the characteristics of advanced structure, beautiful appearance, high electrical performance, high protection level, safety and reliability, and convenient maintenance. It is an ideal power distribution device for low-voltage power supply system in metallurgy, petroleum, chemical, electric power, machinery, textile and other industries.
This product complies with IEC-439 and GB7251.1-97 standards.
 
Features
GCK(L)1 and GCJl are assembled composite structures, and the basic skeleton is assembled with special profiles.
The cabinet frame, part size and opening size shall be changed according to the basic modulus E = 25mm.
In the MCC scheme, the cabinet is divided into five areas (rooms): horizontal bus area, vertical bus area, functional unit area, cable room and neutral grounding bus area. Each district is isolated from each other to ensure the normal operation of the line and effectively prevent the expansion of the fault.
Since all the structures of the frame are fastened by screws, welding deformation and stress are avoided, and the accuracy is improved.
The parts have strong versatility, good applicability and high degree of standardization.
The extraction and insertion of the functional unit (drawer) are operated by levers, and the operation is light and reliable with rolling bearings.
 
Normal use environmental conditions
● The altitude does not exceed 2000 meters.
● The ambient air temperature is not higher than 40 ℃, not lower than 1 5 ℃, and the average temperature within 24 hours is not higher than 35 ℃
Atmospheric conditions: the air is clean, the relative humidity does not exceed 50% at a temperature of +40 ℃, and a larger relative humidity is allowed at a lower temperature, for example, 90% at +20 ℃.
● There is no fire, explosion hazard, serious pollution, chemical corrosion and severe vibration of the place.
● Inclined not more than 5 ° from the vertical plane
● The control center is suitable for transportation and storage at the following temperatures:-25 ℃ ~ 55 ℃, not exceeding 70 ℃ in a short time (not exceeding 24h).

The switch cabinet has the functions of overhead incoming and outgoing lines, cable incoming and outgoing lines, bus connection, etc. Mainly suitable for power plants, substations, petrochemical, metallurgical steel rolling, light industry and textile, factories and mining enterprises and residential areas, high-rise buildings and other different places. It mainly includes high-voltage isolating switch and grounding switch, high-voltage load switch, high-voltage automatic coincidence and segmenter, high-voltage operating mechanism, high-voltage explosion-proof distribution device and high-voltage switch cabinet.

Correct Selection of Breaker Breaking Capacity
On the primary system diagram, the selected circuit breaker, indicating the circuit breaker model, rated working voltage and rated working current, must also be selected for the breaking capacity of the circuit breaker. With user drawings, the breaking capacity of the circuit breaker is not selected, which makes it difficult for the manufacturer to carry out engineering design. The breaking capacity selection should be based on the system short-circuit parameters. If the manufacturer does not understand the system short-circuit parameters, it is difficult to make the correct choice. There are also some user drawings, regardless of the system short-circuit parameters, blindly select high-break parameters, resulting in unnecessary waste of funds. The correct choice of breaking capacity is very important, not only to ensure safe operation, but also to consider reducing product costs.


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