27 Jul 2026
XIAMEN, China – July 16, 2026 – At the 9th Conference on Innovative Applications and Development of AC/DC Power Supply Technology for Power Systems, Kehua was named an Outstanding Enterprise for the third consecutive year in recognition of its nearly 40 years of technical expertise, highly reliable products, and high-quality project services.
As an influential industry event, the conference brought together experts from power grid companies, research institutions, and leading enterprises to discuss innovation and future development trends in AC/DC power supply technologies.
Kehua also delivered a keynote titled "Digital and Intelligent Innovation: Strengthening AC/DC UPS Reliability and Intelligent O&M." Bai Qiuliang, Product Director of the Electrical Systems Business Unit, focused on power-supply challenges in demanding grid environments, smart maintenance technologies, and deployments of industrial UPS solutions.
A focal product at the conference was Kehua's DLU Series industrial-grade rack-mounted UPS. Developed through nearly 40 years of experience in high-end power systems, the series attracted strong interest for its design, new isolation solution, industrial-grade adaptability, comprehensive redundancy, and compact, reliable, easy-to-deploy form factor.
Conventional UPS products often struggle with the harsh operating conditions found in power applications. The DLU Series is designed specifically for these complex environments and delivers multiple customer benefits that make it a benchmark choice for power applications.
Key features include:
The DLU Series features a fully self-developed core architecture, providing enhanced security, reliability, and independent control. It aligns with the power sector’s requirements for secure and controllable technologies while supporting the development of more reliable, intelligent, and greener power equipment.
A new isolation solution and lightweight design give the UPS a compact footprint and make it easy to install. One person can quickly complete rack installation, and the unit fits standard cabinets.
The DLU Series incorporates protection mechanisms at the component, unit, system, and proactive O&M levels. It operates stably under demanding substation conditions, including high temperatures, strong electromagnetic interference, and large voltage fluctuations, providing around-the-clock protection for critical equipment.
Redundancy is built into the system topology, control scheme, and component selection. Even if an internal component is short-circuited, the UPS can switch normally to bypass output to maintain continuous power.
Intelligent functions include battery health monitoring, fault waveform recording, and key-component early warning. These functions shift maintenance from post-failure alarms to pre-failure prevention and warning, enable planned maintenance, and combine high system reliability with lower O&M costs.
Together, these customer-focused capabilities position the DLU Series as a benchmark UPS solution for power applications.
Proven in practice, the DLU Series has been deployed in batches across multiple benchmark grid projects and continues to operate stably under real-world power conditions.
Successful applications include:
· 110 kV substation of China Southern Power Grid's Baise Power Supply Bureau in Guangxi
· Multiple 110 kV substations of State Grid Heilongjiang
· State Grid Hunan 110 kV substation
· State Grid Yichang 110 kV substation
· 220 kV substation of State Grid Hunan's Changsha Power Supply Company
· State Grid Hunan extra-high-voltage ±500 kV converter station
Across northern and southern China, these batch deployments provide uninterrupted power support for core equipment at substations operated by China Southern Power Grid and State Grid. They help safeguard substation power supply and support the safe and stable operation of regional grid infrastructure, demonstrating the strength and application adaptability of the DLU Series.
From three consecutive years of industry recognition to deployments at benchmark grid projects across multiple provinces and technical presentations at the conference, Kehua has continued to focus on independent innovation in AC/DC power supplies, overcome technical barriers, and support secure and independently controlled power supply chains. Looking ahead, Kehua will continue to address the needs of new power system development, upgrade its industrial UPS portfolio, and support the safe, stable, and efficient operation of power infrastructure worldwide.
