34.5 kv Vehicle Mounted Mobile Substation

Hengfengyou Transformer: 34.5kV Vehicle‑Mounted Mobile Substation Solution

I. Product Overview

Hengfengyou 34.5kV (33–35kV) vehicle-mounted mobile substation is a fully integrated, trailer-borne power supply system that combines primary equipment, secondary control, protection, and communication devices into a self-contained modular unit. It integrates HV/LV switchgear, 34.5kV power transformer, auxiliary power, and intelligent control to deliver fast, stable, and flexible power conversion and distribution. The whole unit is fully customizable to meet different voltage, capacity, interface, and site requirements.

With its strong mobility and rapid response capability, global demand for compact mobile substations continues to grow. Hengfengyou 34.5kV mobile units have been widely deployed and reliably operating in markets across South Africa, Tanzania, Ethiopia, Nigeria, Uzbekistan, Kazakhstan, Iran, UAE, Saudi Arabia, Iraq, Türkiye, Egypt, the United States, Canada, Mexico, Brazil, Ecuador, and many other regions.

Typical Applications

• Emergency power restoration following natural disasters
• Overhaul, reconstruction, and capacity upgrade of fixed distribution substations
• Temporary power support for construction, mining, and industrial projects
• Peak‑load shifting, event power, and remote area emergency supply

II. Product Advantages

• 15 years of independent R&D, manufacturing, and global export experience
• Strong production capacity: up to 30 units/year for ≤132kV class; 120 units/year for ≤35kV class
• Field‑proven reliability: large‑scale stable operation of 35kV/110kV mobile units worldwide
• Finite element analysis (FEA) optimized chassis structure for enhanced strength and safety
• Professional layout and weight balancing ensure stable transportation and long‑term operation
• All‑weather resistant design: high humidity, salt spray, high temperature, sand, and dust protection
• Compact, modular, and easy to transport; no complicated civil work required for fast deployment

III. Technical Parameters

• Rated Voltage: 34.5kV
• Configuration: Fully integrated vehicle‑mounted modular structure
• Chassis: Heavy‑duty semi‑trailer with FEA strength verification
• Environmental Rating: Wide temperature, salt spray, sand/dust, and high humidity resistant
• Applicable Standards: IEC, GB, ANSI/IEEE, and customer‑specified standards
• Customization: Full customization available for voltage, capacity, protection, and interface

IV. Design, Installation & Commissioning Scheme

1. Compact Modular Design

• Integrated compartment design: transformer, switchgear, control cabin, and auxiliary systems
• Modular structure enables fast assembly, disassembly, and repeated reuse
• Small footprint and lightweight for road transport and narrow site conditions
• Minimized construction work and short commissioning period

2. Transportation & Site Preparation

• Transported by hydraulic axis trailer (gross weight ≤ 80 tons)
• Sea freight compatible with ISO 1496 standard containers
• Site requirement: hardened level ground, bearing capacity ≥ 150kPa, inclination < 0.5°
• Quick cable connection and reliable grounding system

3. Protection & Intelligent Control

• Complete protection system: differential, overcurrent, zero‑sequence, temperature, and pressure protection
• Standard SCADA monitoring platform
• DGA online oil monitoring for real-time insulation status
• Supports IEC61850 communication protocol for remote control and grid connection

V. Operation & Maintenance

• Highly mobile and reusable across multiple projects and sites
• Lower investment and operating cost than fixed substations
• Simple daily maintenance: oil inspection, sealing check, thermal management, and cleaning
• Remote monitoring and automatic fault warning reduce on-site labor
• Full life cycle technical support, training, and on-site service

VI. Core Specification Summary

VII. Summary

Hengfengyou 34.5kV vehicle‑mounted mobile substation provides a lightweight, flexible, fast‑deploy, and cost‑effective mobile power solution for distribution networks. Backed by 15 years of R&D and manufacturing experience, our mobile substations feature optimized structure, intelligent monitoring, and strong environmental adaptability. They are widely used in emergency rescue, grid renovation, industrial support, and overseas infrastructure projects.

With reliable performance and mature applications in more than 20 countries across Africa, Central Asia, Middle East, and Americas, we help customers improve power supply resilience, reduce construction period, and lower overall investment.

VIII. 34.5 kv Vehicle Mounted Mobile Substation FAQ

Q1: What are the core components of a 34.5kV vehicle‑mounted mobile substation?

• High-voltage part: 34.5kV GIS/HGIS switchgear
• Transformer part: dedicated 34.5kV oil‑immersed distribution transformer
• Auxiliary systems: intelligent control cabinet, fire protection, temperature control
• Mechanical platform: heavy‑duty semi‑trailer or integrated container module

Q2: What are the main application scenarios?

• Urban distribution grid: load transfer during substation renovation
• Industrial sites: temporary power for petrochemical, metallurgical, and mining projects
• Disaster relief: 72‑hour emergency response for earthquake, flood, and typhoon scenarios
• Overseas infrastructure: fast power solutions for Belt and Road projects

Q3: What advantages does it have over fixed substations?

• Deployment: 3–7 days vs. 12–24 months
• Investment: ~RMB 8–20 million vs. RMB 50 million+
• Land use: only 30×15m required vs. permanent land acquisition
• Reusability: reusable 5–8 times vs. fixed and non‑movable

Q4: What are the transportation and installation requirements?

• Road transport: hydraulic axis trailer, total weight ≤ 80 tons
• Sea transport: ISO 1496 standard containers
• Installation: level hardened ground, bearing ≥150kPa, inclination <0.5°

Q5: How long does it take to go from transport to operation?

• Standard deployment: 3–7 days including commissioning
• Emergency mode: pre‑assembled & pre‑tested unit can be energized within 48 hours

Q6: What functions does the intelligent monitoring system provide?

• Real‑time DGA oil chromatography online monitoring
• Hot‑spot temperature alarm with accuracy ±1℃
• Remote control and data access supporting IEC61850
• Standard SCADA platform for integrated monitoring and management