GCS Box-type fixed metal closed ring network switchgear

Product Overview
GCS low-voltage withdrawable switchgear is suitable for distribution systems in industries such as power plants, petroleum, chemical, metallurgical, textile, and high-rise buildings. In places with high automation levels such as large power plants and petrochemical systems that require computer interfaces, this low-voltage complete distribution device is used for power distribution, centralized control of electric motors, and reactive power compensation in power generation and supply systems with a three-phase AC frequency of 50 (60) Hz, rated operating voltage of 380V (400V), (660V), and rated current of 4000A or below

Usage conditions
Environmental temperature: not higher than+40 ℃, not lower than -5 ℃; The average temperature within 24 hours shall not exceed+35 ℃. If exceeded, the capacity shall be reduced according to the actual situation for operation
Altitude: not exceeding 2000m, for indoor use
Atmospheric conditions: The relative humidity of the surrounding air should not exceed 50% at a maximum temperature of+40 ° C, and a higher relative humidity is allowed at lower temperatures, such as 90% at+20 ° C. The influence of condensation due to temperature changes should be considered
When installing the device, the inclination with respect to the vertical plane should not exceed 50 ℃, and the entire cabinet row should be relatively flat (in accordance with GBJ232-82 standard)
The device should be installed in a place where there is no severe vibration or impact, and where the electrical components are not subjected to the necessary corrosion
Note: If ordering this product exceeds the above conditions, please consult with our company
Performance metrics
The design of the device complies with the following standards
IEC439-1 Low voltage switchgear and control equipment
GB 7251 Low Voltage Switchgear Sets
ZBK 36001 low-voltage withdrawable complete switchgear

Auxiliary Circuit
The design of auxiliary circuit diagrams complies with relevant design technical regulations such as the "Technical Regulations for Electrical Design of Thermal Power Plants", and is applicable to low-voltage power systems in power plants, substations, as well as low-voltage distribution systems in factories, mines, and high-rise buildings
The auxiliary circuit scheme is designed based on the main circuit scheme, which includes functional units for power input, feeder (PC), and motor feeder (MCC) operation control
Main Structure
The main structure adopts 8MF type open steel, and the two sides of the steel have installation holes with module sizes of 20mm, 100mm, and 9.2mm respectively, making internal installation flexible and convenient
The main structure assembly is designed in two forms, fully assembled structure and partially (side frame and crossbeam) welded structure, for users to choose from
The various functional rooms of the device are isolated from each other, and their compartments are divided into functional unit rooms, busbar rooms, and cable rooms. The functions of each room are relatively independent
The horizontal main busbar adopts a cabinet mounted flat arrangement to enhance the busbar's ability to resist electric forces, which is a basic measure to enable the main circuit of the device to have high short-circuit strength
The design of the cable compartment makes it very convenient for cables to enter and exit both up and down
The size series of the universal cabinet for the device (see table below):




Ordering Notice
The order contract includes the following contents:
The full range of product models includes the main circuit scheme number and the auxiliary circuit scheme number
Main circuit system combination sequence diagram
Electrical schematic diagram of auxiliary circuit
List of components inside the cabinet
Setting parameters such as voltage, current, and time in the circuit
Negotiate with the manufacturer to resolve any other special requirements that do not comply with the normal use of the product