Guangxi Meiyijia Industrial Power Distribution Engineering Project
The office building of Guangxi Meiyijia Industrial Investment Co., Ltd., including the basement equipment room. As an office space for small and medium - sized enterprises, the project needs to build a safe, reliable and easy - to - maintain power distribution system to meet the power load requirements of daily lighting, elevators, air conditioners, etc., while taking into account space limitations and long - term power supply stability.
Adopt SWXL - 21 power distribution cabinets + SWGCS type low - voltage drawout switchgear + KYN28 - 12 type armored removable AC metal - enclosed switchgear, etc.
Siwu Solution
Customer Value
1. Limited space
− The equipment room in the basement requires a compact layout. Traditional power distribution equipment takes up a large area and is inconvenient for maintenance.
Safe and reliable
− Pressure relief channel of high-voltage cabinet+ Fully separated design of low-voltage cabinet to avoid the risk of arc spread;
− The whole system complies withNational standards such as GB7251 and GB3906, and has passed the acceptance of Guangxi Power Grid.
2. High reliability requirements
− The power supply continuity of office buildings directly affects corporate office work, and risks such as short - circuits and overloads need to be avoided.
Save space and cost
− Wall-mountedThe SWXL-21 cabinets and vertically arranged SWGCS cabinets save the floor area in the basement;
− Standardized components (such as the general-purposeVS1 circuit breaker) reduce the procurement cost of spare parts in the later stage.
3. Complex operation and maintenance
− Lack of a professional electrician team, so the equipment needs to be convenient for daily inspection and fault handling.
2. Low-voltage power distribution layer
Products:SWGCS type low-voltage draw-out switchgear assemblies
Function realization:
− Rated current6300A, suitable for 2500kVA transformers, responsible for the main distribution of power and lighting for the whole building;
− Modular drawer unit (maximum2500A/cabinet), controlled by floor circuits. When one circuit is powered off for maintenance, it does not affect the overall operation;
− Independent capacitor compensation cabinet, with stable power factor.
3. Terminal distribution layer
product:SWXL-21 power distribution cabinet
Function implementation:
− Installed in layers in the vertical shafts of each building and distributed to offices and public areas nearby;
− The box door is integrated with instruments and buttons to monitor the status of branch circuits in real time;
− Built-in circuit breaker+Contactor+thermal relay triple protection to prevent motor overload damage (such as air conditioning units).
Convenient operation and maintenance
− Drawer-type low-voltage unit/ Front-accessible power cabinet, faulty components can be quickly replaced without professional tools;
− Mechanical indication of KYN28 switchgear handcart position to prevent accidental entry into live compartments.
− Reserve expansion space for future load adjustment.
1. High voltage incoming linecabinet
− product:KYN28-12 armored removable AC metal-enclosed switchgear
Function implementation:
− accept10kV municipal power supply, distributed to transformers through vacuum circuit breakers;
− All-metal armored structure to meet the moisture-proof requirements of the basement (humidity≤95%）；
− Mechanical interlock"Five-prevention" design eliminates the risk of misoperation;
− The trolley-type circuit breaker supports hot swapping and can be quickly replaced in case of failure.
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