232 kv Vehicle Mounted Mobile Substation

Hengfengyou Transformer: 232kV Vehicle‑Mounted Mobile Substation Solution

I. Product Overview

Hengfengyou 232kV series vehicle-mounted mobile substation is an integrated combined substation equipment that integrates primary and secondary electrical equipment and a heavy-duty load-bearing chassis. It integrates high and low voltage switchgear, high-voltage power transformers, protection, communication, power supply and other devices to realize integrated substation and distribution, and provide reliable power supply rapidly. The whole substation can be fully customized according to user requirements.

Benefiting from strong emergency response capability, the global demand for vehicle-mounted mobile substations keeps increasing year by year, and the power transmission and operation rate of mobile substations is also rising continuously, showing a broad market prospect.

Our 232kV mobile substations have been sold and operated reliably in many markets and regions including South Africa, Tanzania, Ethiopia, Nigeria, Uzbekistan, Kazakhstan, Iran, UAE, Saudi Arabia, Iraq, Türkiye, Egypt, the United States, Canada, Mexico, Brazil, Ecuador, etc.

Typical Applications

• Natural disaster emergency repair and power recovery
• Conventional substation equipment maintenance, renovation and upgrading
• Major engineering construction power support
• Temporary power supply for peak load, events and key projects

II. Product Advantages

• 15 years of independent R&D, manufacturing and global sales experience
• Strong production capacity: 30 sets/year for voltage level below 132kV; 120 sets/year for voltage level below 35kV
• Mature application verification: 232kV vehicle-mounted mobile substations have been widely and reliably operated in domestic and international markets
• Compact GIS design: adopts gas insulated switchgear (GIS), greatly reducing footprint
• Modular structure: easy to disassemble, transport and deploy quickly
• Intelligent monitoring system: equipped with SCADA system for real-time monitoring of voltage, current, temperature and other parameters; supports remote control and improves operation efficiency
• High protection level: enclosure protection grade IP54, suitable for high humidity, sandstorm and other harsh environments; optional shockproof and corrosion-resistant design for coastal or high-altitude areas
• Full customization: voltage, capacity, interface, function and appearance can be customized according to customer requirements

III. Technical Parameters

• Rated Voltage: 232kV
• Typical Capacity: 40MVA–120MVA
• Structure: Vehicle-mounted integrated modular + GIS
• Protection Level: IP54 (IP65 customizable)
• Operating Temperature: -40℃ to +50℃ (with temperature control system)
• Standards: IEC, GB, ANSI/IEEE, customer-specified standards
• Customization: Fully customizable according to user requirements

IV. Design, Installation & Commissioning Scheme

1. Integrated & Modular Design

• Integrated layout of transformer compartment, GIS switchgear, control room and auxiliary system
• Modular design for fast assembly, disassembly and transportation
• GIS adopted to minimize space occupation and improve environmental adaptability
• No complicated civil construction required, realizing rapid deployment

2. Transportation & Installation Requirements

• Special heavy-duty transport vehicles; overlimit permit required in some countries
• Installation site: leveled and hardened ground (bearing capacity ≥10 tons/m²)
• Reserved cable trenches, fire passages and safe operation space
• Fast cable connection and reliable grounding system

3. Protection & Intelligent Control

• Complete relay protection system: differential, overcurrent, zero-sequence, non-electricity protection
• SCADA monitoring: real-time data collection, remote control, fault alarm
• Lightning protection, overvoltage protection and temperature control system
• Supports grid dispatching data docking and black start function

V. Operation & Maintenance

• Mobile and reusable, suitable for multi-scene and multi-cycle application
• Operation and maintenance cost: 60%–80% of fixed substation (no civil cost)
• Daily maintenance: transformer oil test, GIS sealing inspection, cooling system cleaning
• Remote fault diagnosis and automatic alarm to reduce on-site workload
• Full life cycle technical support and upgrade service

VI. Core Specification Summary

VII. Summary

Hengfengyou 232kV vehicle-mounted mobile substation is a high-voltage, large-capacity, fast-deployment, intelligent and modular mobile power supply solution. With 15 years of R&D and manufacturing experience, compact GIS structure, intelligent monitoring system and high environmental adaptability, it is widely used in emergency power repair, substation renovation, new energy grid connection, major engineering support and other fields.

The products have been successfully applied in more than 20 countries across Africa, Central Asia, Middle East and Americas, helping users improve power supply reliability, emergency response capacity and grid operation efficiency.

VIII. 232 kv Vehicle Mounted Mobile Substation FAQ

Q1: What is a 232kV vehicle-mounted mobile substation?

A: An integrated and rapidly deployable mobile substation installed on heavy-duty trailers or modular containers, equipped with 232kV transformers, GIS/HGIS switchgear and protection control system, used for temporary power supply or emergency repair.

Q2: What are the differences between 232kV and 110kV vehicle-mounted substations?

• Higher voltage level for 232kV transmission network
• Larger capacity: 40MVA–120MVA
• Higher insulation and EMC design requirements

Q3: What are the main application scenarios?

• Grid emergency: rapid replacement for 232kV substation failure
• New energy grid connection: temporary boosting stations for large wind/PV bases
• Urban expansion: transitional power supply during grid renovation
• Power supply for major events (Olympics, World Expo, etc.)

Q4: What are the transportation and installation conditions?

• Transportation: special vehicles required; overlimit permit needed in some countries
• Installation: leveled and hardened ground (≥10 tons/m²); reserved cable trenches and fire exits

Q5: How long does it take from transportation to operation?

• Regular deployment: 3–7 days (including commissioning)
• Emergency mode: put into operation within 48 hours (pre-assembled and pre-tested)

Q6: Does it support intelligent remote monitoring?

A: Yes, standard with SCADA system. It supports real-time temperature/load/insulation monitoring, remote start/stop, fault alarm and grid dispatching data docking.

Q7: What is the protection level? Can it adapt to extreme environments?

• Enclosure: IP54 (IP65 customizable)
• Operating temperature: -40℃ to +50℃, suitable for high altitude, salt spray and sand/dust environments

Q8: What technical requirements must be met for grid connection?

A: Must comply with grid company standards, including relay protection coordination, harmonic content (THD<3%) and short-circuit capacity verification.

Q9: Is O&M cost high? What is included in daily maintenance?

• Cost: about 60%–80% of fixed substation (no civil cost)
• Maintenance: transformer oil test, GIS sealing inspection, cooling system cleaning

Q10: What is the service life and retirement standard?

• Design life: 25 years
• Retirement: main equipment aging (transformer insulation degradation), efficiency below 85%

Q11: Can it work with energy storage, PV and other renewable energy?

A: Yes. It supports flexible DC interface, dynamic reactive power compensation (SVG) and black start function with energy storage system.

Q12: How to choose between leasing and purchasing?

• Short-term demand (<1 year): leasing is more cost-effective
• Long-term demand: recommended to purchase (payback period about 3–5 years)