Haihong Power Distribution Solution | Reducing Costs & Improving Efficiency for Charging/Swapping Stations, Saving Energy & Reducing Carbon Emissions for the Nation

Charging/swapping infrastructure is the intersection of transportation power and energy security, and is now transitioning from quantity expansion to quality improvement. Currently, the sustainable development of charging/swapping station infrastructure faces two major challenges that urgently need to be addressed: First, the overall electrical loss of the entire station remains high. The total electrical loss of heavy-duty truck charging stations generally exceeds 10%, while for EV car charging stations it ranges between 10% and 15%. Combined with factors such as equipment aging, high operating temperatures, insufficient charging volume, and low utilization rates, the electrical loss can surge to 12% for heavy-duty truck charging stations and 15% for EV car charging stations. Second, under hot outdoor conditions, when charging at full load, the transformer experiences temperature rise-induced de-rating and frequent shutdowns, making 24-hour continuous operation of the charging station impossible.

Haihong Power Distribution Solution – Reducing Electrical Loss at the Source

Haihong adopts 3D wound core energy-saving technology, which significantly reduces transformer no-load loss, load loss, and no-load current. In addition, the integrated EV charging station series products, paired with a pre-installed cable trough, enable high integration of charging and distribution equipment, thereby reducing cable usage and directly cutting cable line loss by 70%.

The integrated EV fast-charging demonstration station self-built and self-operated by Haihong Electric achieves an average electrical loss as low as 6%. Meanwhile, according to user feedback, heavy-duty truck charging stations adopting the Haihong solution also achieve electrical loss as low as 6%.

Low-Temperature-Rise Technology – Ensuring Revenue Continuity in High-Temperature Conditions

The Haihong power distribution solution for charging/swapping stations incorporates self-developed low-temperature-rise technology. The transformer adopts Class C(R) insulation (temperature resistance of 220°C). Even at 125% overload, the coil temperature rise remains far below the temperature rise limit requirement for Class C insulation systems (150K). This low-temperature-rise technology plays a critical role in charging/swapping stations, solving the problems of temperature rise-induced de-rating and frequent shutdowns, allowing users to truly achieve 24-hour continuous high-load operation and sustained revenue.

Haihong's "China Heart" – Saving Energy and Reducing Carbon Emissions for the Nation

In the development of charging/swapping infrastructure, Haihong has delivered a compelling answer to serving the country with technology and demonstrating technological confidence through its prefabricated substation series products for charging/swapping stations. The innovative design of the integrated EV charging station has reached a world-leading level. The Haihong 3D wound core transformer technology, by virtue of its structure, inherently possesses energy-saving advantages. When combined with low-temperature-rise technology, its energy-saving benefits become even more remarkable. To date, over a thousand Haihong charging station products have been deployed across the national charging/swapping station network. For every percentage point reduction in electrical loss, the annual electricity saved is substantial. With its low-loss, high-efficiency energy-saving technology, Haihong Electric has set a new benchmark for the industry. The electricity saved can be directly fed back to power more heavy-duty trucks and EVs for green mobility, reducing resource waste. This is Haihong's conscious commitment to the nation's "Dual Carbon" strategy.

Less loss, more confidence. Choosing Haihong Electric means resonating with the national energy-saving strategy, protecting every kilowatt-hour with hardcore technology, and turning every charging station into a green profit center. Haihong Electric – serving the country with energy-saving technology and empowering customers to succeed.

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