Industrial Power Hubs | SGJZ Power Transformers FZCO

Industrial Power Hubs

LED LIGHTING GROUP

Suzhou Industrial Park's Early-Stage Grid Architecture Upgrade Challenge

Original Plan: Adoption of a 20kV power transmission and distribution system.

Technical Breakthroughs:
• Domestic 20kV Transformer R&D: Successfully developed domestically produced 20kV transformers, obtaining ISO 9001 certification and State Grid access permits.
• Dual-Voltage Compatibility Design: Engineered 10/20kV universal high-voltage dual-voltage transformers, enabling seamless voltage switching during grid modernization without production halts.

Key Achievements:
• First Commercial Order: Delivered 5 units of 20kV transformers (RMB 1.17 million), capturing 95% market share in the park.
• Low-Voltage Dual-Voltage Solutions: Subsequent launch of low-voltage dual-voltage transformers reduced foreign enterprises' equipment procurement costs by over 30%.

Impact:
This initiative not only addressed immediate grid upgrade demands but also laid the foundation for future industrial electrification in Suzhou, setting a benchmark for infrastructure modernization in high-tech zones.

Suzhou Industrial Park 110kV Substation

As the smallest-footprint 110kV substation in Jiangsu Grid, this facility redefines urban power infrastructure through innovative design and smart technology integration. Adopting a mother-daughter substation model, it shares critical infrastructure (e.g., roads, firewater pools) with the adjacent 220kV Xinfengmen Substation, achieving 15% cost savings and minimizing land use.

The substation features a digital perception system acting as a "smart nervous system," enabling:
• 1052 real-time monitoring points for equipment health
• Remote inspections via AI-powered thermal imaging and drone surveys
• Automated operations (e.g., one-click switching, intelligent interlocks)

Sustainability is prioritized through:
• 31.5 kW rooftop PV system generating ~31,000 kWh annually (offsetting 31 tons CO₂)
• Modular construction using prefabricated panels to reduce on-site waste by 40%
• Future-ready design for microgrid integration and V2G charging infrastructure

This groundbreaking project exemplifies urban energy solutions balancing space efficiency, intelligence, and carbon neutrality, setting a benchmark for modern industrial parks worldwide.

Innovative Application of 20kV Transformers in Suzhou Industrial Park

During the Singapore Grid Mode modernization project, the introduction of 10/20kV dual-voltage transformers and low-voltage dual-voltage transformers enabled a comprehensive grid architecture upgrade. This solution effectively addressed the diverse voltage requirements of multinational enterprises while avoiding equipment replacement through adjustable tap settings, achieving 95% market penetration and significantly enhancing the energy efficiency of the park's power systems.

Key Technical Features:
• Voltage Compatibility: Supports seamless transition between 10kV and 20kV grids to accommodate mixed industrial loads
• Modular Design: Allows in-situ voltage regulation via tap changers, eliminating costly infrastructure overhauls
• Energy Efficiency: Reduces transmission losses by 18-22% compared to conventional single-voltage systems

Industrial Parks

High-Density Loads & Harmonic Pollution

Key Focus: Harmonic suppression, dynamic reactive power support.

Solutions:
Active Filtering: APF modules integrated for THDi <3%.
Multi-Strand Litz Windings: Reduced skin effect losses for frequent motor startups.

Dynamic VAR Compensation:
MCR + SVG hybrid systems to maintain PF >0.98.
Explosion-Prone Areas (Oil Refineries, Metallurgy)

Key Focus:
Explosion-proofing, shock resistance.

Solutions:
Type Ex d Dry-Type Transformers: Nomex paper + epoxy dual insulation (IECEx certified).

Seismic-Resilient Mounts:
Spring isolators tested for 9-level seismic intensity (GB/T 23756).