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Power Engineering Case | Integrated Electrical Design Solution for E-Commerce Industrial Park
I. Project Overview
As a large-scale industrial park integrating R&D offices, commerce, dormitories, and bus stations in Shenzhen, it has 1,483 planned parking spaces, needing to meet diverse electricity demands and large-scale charging pile supporting requirements. Guided by the core principles of “high-capacity adaptation, safety redundancy, intelligence and efficiency”, we customize a full-scenario electrical design solution to build a solid energy guarantee for the park’s efficient operation.

II. Core Challenges
- Large Load Scale: The total equipment capacity reaches 26,479.8kW, with significant power density differences across multiple scenarios, requiring high power supply stability;
- Concentrated Charging Pile Demand: Need to construct 445 charging piles, with 70% of parking spaces reserving installation conditions, requiring independent planning of a large-capacity power distribution system;
- Strict Safety Standards: Must comply with multiple specifications such as fire linkage, emergency power supply, and civil air defense in wartime to eliminate power outage risks;
- Complex Spatial Layout: 6 power distribution rooms need scientific planning to balance functional needs and space efficiency.
III. Customized Solutions
- Dual Power Supply Guarantee: 2 independent 10kV dedicated lines for parallel power supply, paired with a 1000kW diesel generator for seamless switching between emergency and municipal power; 2 additional 250kW generators in civil air defense areas;
- Zoned Power Distribution Design: 6 exclusive power distribution rooms (total capacity 19,360kVA) with capacity allocated by business type; charging piles equipped with an independent 1000kVA transformer (2000kVA reserved); low-voltage power supply adopts radial + trunk type;
- Comprehensive Safety Protection: Centralized alarm system + multiple intelligent monitoring, with the fire control room for centralized management, complying with GB51309-2018 standard;
- Precise Selection & Expansion: High-voltage medium-voltage switchgear (KYN-28), ring main units (RM6) + low-voltage withdrawable switchgear (GCK), 14 SCB14 transformers; 20% expansion space reserved in all power distribution rooms.
IV. Project Value
- Safe and Reliable: Multiple guarantees meet daily, emergency, and wartime needs, achieving trouble-free operation;
- Strong Adaptability: Precisely matches multi-format needs, independent planning of charging piles balances current and future use;
- Efficient and Energy-Saving: Scientific equipment selection and power distribution optimization reduce energy consumption and improve O&M efficiency;
- Industry Benchmark: Provides a replicable solution for electrical design of large cross-border e-commerce industrial parks.
V. List of Key Equipment
High-voltage switchgear (KYN-28, RM6 type), dry-type transformers (SCB14 series), low-voltage withdrawable switchgear (GCK type), diesel generators, DC screens, charging piles, fire alarm controllers, etc.
VI. Overview of Project Implementation Details
1.Outdoor Electrical General Layout

2.Power Supply and Distribution System





