220 kv Vehicle Mounted Mobile Substation

220 kv Vehicle Mounted Mobile Power Substation Global Procurement Guide
【Flexible and efficient power emergency solutions】

Product application: emergency repair of natural disasters, maintenance, renovation and upgrading of conventional substations, engineering support, temporary power supply, etc.

Q1:What is a 220kV vehicle mounted mobile substation?

An integrated and rapidly deployable mobile substation, installed in heavy-duty trailers or modular containers, containing 220kV transformers, GIS/HGIS switchgear, protection control systems, etc., suitable for temporary power supply or emergency repairs.

Q2:What are the differences between 220kV vehicle mounted substations and 110kV vehicle mounted substations?

*Higher voltage level: suitable for 220kV transmission network;

*Larger capacity: typically ranging from 40MVA to 120MVA;

*More complex design: needs to meet higher insulation levels and electromagnetic compatibility requirements.

Q3:What are the main application scenarios of 220kV mobile substation?

*Power grid emergency: rapid replacement in case of 220kV substation failure;

*New energy grid connection: temporary boosting stations for large wind farms/photovoltaic bases;

*Urban expansion: transitional power supply during power grid renovation;

*Power supply for major events such as the Olympic Games, World Expo, etc.

Q4:What are the conditions required for transportation and installation of 220kV mobile substation?

*Transportation: Special transport vehicles are required, and some countries require an over limit permit;

*Installation: The site needs to be leveled and hardened (with a load-bearing capacity of ≥ 10 tons/m ²), and cable trenches and fire exits should be reserved.

Q5:How long does 220kV mobile substation take from transportation to operation?

*Regular deployment: 3-7 days (including debugging);

*Emergency mode: It can be put into operation within 48 hours at the fastest (pre installed and debugged).

Q6:Does 220kV mobile substation support intelligent remote monitoring?

Yes, it comes standard with SCADA system and supports:

*Real time monitoring of temperature, load, and insulation status;

*Remote start stop and fault alarm;

*Data docking with the power grid dispatch center.

Q7:What is the 220kV mobile substation level of protection? Can it adapt to extreme environments?

*Box protection: IP54 (dustproof and waterproof) or customized IP65;

*Environmental adaptability: Can be configured with a temperature control system ranging from -40 ℃ to+50 ℃, suitable for high altitude, salt spray, sand and dust environments.

Q8:What 220kV mobile substation technical requirements do grid connections need to meet?

Must comply with the standards of the power grid company, including:

*Relay protection setting matching;

*Harmonic content (THD<3%);

*Short circuit capacity verification.

Q9:Is the operation and maintenance cost high? What are the contents of daily maintenance?

*Cost: Approximately 60% to 80% of the cost of a fixed substation (without civil engineering expenses);

*Maintenance focus: Transformer oil detection, GIS equipment sealing inspection, and cooling system cleaning.

Q10:What is the service life of 220kV mobile substation? What are the retirement standards?

*Design lifespan: 25 years;

*Retirement criteria: Main equipment aging (such as transformer insulation degradation), efficiency below 85%.

Q11:Can it be used in conjunction with renewable energy sources such as energy storage and photovoltaics?

Sure, support:

*Configure flexible DC interface;

*Dynamic Reactive Power Compensation (SVG);

*Black start function (linked with energy storage system).

Q12:How to choose between leasing and purchasing?

*Short term demand (<1 year): Leasing is more cost-effective (approximately 50000 to 100000 yuan/month);

*Long term demand: It is recommended to purchase (investment payback period of about 3-5 years).