High-performance inverter solutions engineered for Romanian railway infrastructure, industrial systems, and clean energy applications — CE certified and EU-standard compliant.
Romania's railway sector is undergoing a significant transformation driven by EU-funded modernization programs and the country's commitment to sustainable transport infrastructure. With over 10,800 km of rail network — one of the largest in Eastern Europe — Romania represents a major growth market for advanced railway power electronics, including high-performance inverters.
The Romanian government, through its National Recovery and Resilience Plan (PNRR), has allocated billions of euros for railway electrification, fleet renewal, and signaling system upgrades. This creates enormous demand for reliable, energy-efficient inverter systems that meet EU technical standards and can operate in the diverse climate conditions found across Romanian territory — from the Carpathian highlands to the Danube Delta lowlands.
⚡ Romania's railway electrification rate currently stands at approximately 37%, with ambitious targets to increase this figure significantly by 2030 under EU Green Deal commitments — creating direct demand for railway-grade inverter technology.
Key Romanian railway operators including CFR Călători (passenger) and CFR Marfă (freight) are actively investing in modern traction systems and auxiliary power units (APUs) that rely on advanced inverter technology to convert DC overhead line power into the AC supply needed for onboard systems, air conditioning, lighting, and passenger information systems.
The convergence of EU policy, green energy mandates, and digital transformation is reshaping how inverter technology is deployed across Romanian transport and industrial sectors.
Romanian railway operators are increasingly adopting regenerative braking energy storage systems. Inverters play a critical role in converting regenerated DC power back into usable AC electricity, reducing energy consumption by up to 30% on electrified lines between Bucharest and Constanța.
Several Romanian railway stations, particularly in Transylvania and Muntenia regions, are piloting solar PV installations combined with inverter-based storage systems to power station facilities, lighting, and passenger services with clean energy — reducing grid dependency.
The trend toward Industry 4.0 in Romanian manufacturing and rail maintenance depots is driving demand for smart inverters with remote monitoring, predictive maintenance alerts, and integration with SCADA systems — enabling real-time power management across the network.
Bucharest's metro system expansion (Lines 5 and 6) and tram network modernization in Cluj-Napoca, Timișoara, and Iași are creating significant demand for traction inverters and auxiliary power supply systems that meet European EN 50155 railway standards.
Romania is exploring hydrogen-powered rail vehicles for non-electrified rural lines. High-power inverters capable of converting hydrogen fuel cell DC output to AC traction power are a key enabling technology for this zero-emission railway future.
Romanian railway stations are being transformed into multimodal transport hubs with integrated EV charging. Industrial inverters and bidirectional power converters are essential components in these vehicle-to-grid (V2G) ready charging installations.
From the Black Sea ports to the Carpathian mountain tunnels, Bangzhao inverter technology is engineered to meet the specific demands of Romania's diverse operational environments.
Powering onboard HVAC, lighting, and passenger information systems on CFR Călători diesel and electric locomotives with pure sine wave inverters delivering stable 380V AC output.
High-power vehicle and stationary inverters supporting automated manufacturing lines in Bucharest's Pipera and Militari industrial districts, ensuring uninterrupted production power quality.
Marine inverters with CCS certification powering vessels on the Danube waterway — Romania's critical freight corridor — providing stable power for navigation, communication, and cargo handling equipment.
Explosion-proof inverters deployed in Ploiești oil refineries and Prahova Valley petrochemical facilities, where ATEX-compliant power conversion is essential for safe operations in hazardous zones.
IP65-rated PV water pump inverters supporting solar-powered irrigation across Romania's fertile Danube Plain and Moldavian agricultural regions, reducing energy costs for Romanian farmers.
Ruggedized inverter systems for Carpathian mountain railways and ski resort cable car installations in Sinaia, Predeal, and Poiana Brasov — engineered for extreme cold weather performance.
Bangzhao Electric Co., Ltd (Sandi Electric) is a company established in 2008, specialized in developing and supplying of power products. The high performance of its products stems from the cutting-edge technology developed by the domestic top 100 engineers.
During the past 10+ years, we have been providing the best system solutions of Lithium battery storage system, PCS bi-directional energy storage power supply, Pure sine wave inverter, Marine inverter, Vehicle Inverter, Solar pump inverter, Explosion-proof inverter, PV Inverter-Controller Integrate, PV combiner box, Solar charge controller, AC-DC charger, Static phase converter etc. to customers. It is widely applied in the industry of solar energy, wind power, water power, car, ship, train, hospital, aviation, automation, etc.
We believe that through our continuous efforts and pursuit, we can become one of the most influential enterprises between domestic big-power inverter manufacturers.
Bangzhao Electric Co., Ltd (Sandi Electric) regards technological innovation and best service as the fundamental of business development. The annual technology development investment cost is more than 20% of the annual sales, with an experienced and top professional research and development team, obtained a number of certificate and patent of power products, we are cooperation supplier of many famous companies.
"Integrity, Rigorous, Pragmatic" is the continuous pursuit of Bangzhao Electrical. Facing today and the future, we will provide more professional and perfect services to the public who support and trust Bangzhao Electric (Sandi Electric).

The values that drive Bangzhao Electric to deliver world-class inverter solutions to Romania and beyond.




A team with strong execution ability is a combative team — the key factor determining enterprise success.

It is widely applied in industries such as solar energy, wind power, hydropower, automobiles, ships, trains, and hospitals — aviation, automation, and more.

The system uses solar panels to convert solar energy into electricity, stored in batteries to provide stable, clean supply for remote island communities. Industrial frequency off-grid inverters and photovoltaic controllers adapted for harsh coastal environments.
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Utilizing new photovoltaic energy generation technology and oil pumping units to achieve green and efficient oil extraction in Romania's Prahova Valley. High efficiency, modular design, industrial frequency isolation with strong load-carrying capacity.
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Providing power for all electrical equipment on board Danube freight vessels. Frequency and voltage stabilization, low frequency isolation type, strong anti-interference ability, conforming to CCS Classification Society approval.
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Integrating inverter charging and energy storage technologies, providing green charging solutions for electric vehicles across Romanian highway rest stops and urban centers. Optimizing energy allocation and balancing grid load.
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Solar water pumping system using pure photovoltaic direct drive three-phase AC water pump, combinable with utility power. Zero carbon emission, low operation costs — ideal for Romania's Danube Plain agricultural irrigation needs.
View More →Join 60+ countries already benefiting from Bangzhao's advanced inverter technology. We offer localized support, EU-standard compliance, and customized solutions for Romanian market requirements.
Contact Us TodayWe believe that through our continuous efforts and pursuit, we can become one of the most influential enterprises between domestic big-power inverter manufacturers.

Direct from our manufacturing facility to Romanian clients — eliminating middlemen and ensuring competitive pricing with full quality control from production to delivery.

Custom inverter solutions designed to meet Romanian railway standards, EU directives, and specific voltage/frequency requirements for local grid compatibility (230V/50Hz).

Comprehensive technical support, remote diagnostics, and warranty services for Romanian and Eastern European clients — with multilingual documentation and online troubleshooting.

Multiple international certifications including CCS, ISO, CE and explosion-proof certifications — ensuring full compliance with European and Romanian regulatory requirements.
Internationally recognized certifications demonstrating our commitment to quality, safety, and compliance with global and European standards.






With an experienced and top-notch professional R&D team, it has obtained multiple certificates and patents for power supply products and is a cooperative supplier for many well-known companies.
A glimpse into our state-of-the-art manufacturing facility and the precision engineering behind every Bangzhao inverter product.






"Integrity, Rigorous, Pragmatic" is the continuous pursuit of Bangzhao Electrical. Facing today and the future, we will provide more professional and perfect services to the public who support and trust Bangzhao Electric (Sandi Electric).

Company Profile

3 Phase AC-DC Battery Charger

Pure Sine Wave Inverter

diesel-lithium hybrid storage system

48VDC-220VAC inverter

wind-solar hybrid storage system

120/240V split phase to 380V AC converter

200kw AC-DC charger

256kwh storage system

86kwh storage system

outdoor power inverter

Explosion-proof power inverter

Rack type solar charge controller

solar micgrid storage system

600kwh cell welding
Bangzhao Electric Co., Ltd (Sandi Electric) regards technological innovation and best service as the fundamental of business development — serving 60+ countries including Romania and all of Eastern Europe.
Connect with Bangzhao Electric today for customized railway inverter solutions, competitive factory-direct pricing, and full technical support for your Romanian projects. Our team is ready to assist with EU compliance documentation and localized product specifications.
Get Free Consultation Download CatalogueExplore our complete range of power inverter solutions — all available for direct supply to Romanian clients with EU-standard compliance and factory-direct pricing.