I. Project Background

The South China Industry-Education Integration Project is located in the Guangxi ASEAN Economic Development Zone, with a total construction land area of 60 mu and a building area of approximately 52,000 square meters. It encompasses various types of buildings, including dormitories, teaching buildings, and a comprehensive building. The project's power supply system must meet requirements for high reliability, safety, and scalability. The power supply engineering utilizes YJ22-8.7/15kV-3*300mm² high-voltage cables, supplied from the spare feeder of the Jianxing No. 6 Switching Station on Development Avenue. The newly built distribution room is equipped with 4 transformers and corresponding high and low-voltage complete switchgear. The high-voltage section employs HXGN17-12 box-type fixed metal-enclosed switchgear, and the low-voltage distribution uses SWGCS-type low-voltage withdrawable complete switchgear.

II. Customer Pain Points

High Power Supply Reliability Requirements: Educational projects involve daily electricity use for a large number of teachers and students, necessitating the elimination of frequent faults or power outages.

Limited Equipment Space: The distribution room space requires efficient utilization, demanding compact equipment structures and flexible layouts.

Need for Simplified Later-Stage Maintenance: Equipment must be easy to inspect and maintain to reduce long-term operational costs.

Environmental Adaptability: The Guangxi region has high humidity; electrical equipment requires good protection and heat dissipation performance.

III. Proposed Solution

High-Voltage Ring Main Power Supply Scheme: Adoption of HXGN17-12 fixed-type ring main units, featuring a simple and reliable structure with interlocking mechanisms to prevent misoperation, suitable for ring main and terminal power supply needs.

Modular Low-Voltage Distribution Design: Selection of SWGCS-type low-voltage withdrawable switchgear, with a unit modular design supporting flexible configuration and future expansion.

High Protection and Heat Dissipation Capability: Equipment cabinets employ corrosion-resistant treatment and independent ventilation duct design, adapting to high-temperature and high-humidity environments, enhancing system stability.

Intelligent Control Interfaces: Low-voltage switchgear supports remote monitoring and automated management, facilitating energy efficiency management and fault early warning.

IV. Customer Value

Enhanced Power Supply Stability: The high-voltage ring main structure and coordinated high/low-voltage equipment ensure continuous power supply, meeting the high-reliability needs of educational facilities.

Optimized Space Utilization: Compact equipment structure and rational layout save distribution room space.

Improved Operational Efficiency: The withdrawable low-voltage unit design facilitates quick inspection and replacement, reducing outage time and maintenance costs.

Long-Term Applicability: Equipment possesses good environmental adaptability and scalability, supporting future increases in electricity load and system upgrades.