TONHE 110V 220V UPS DC Panel With 0ms Transfer Time For Power Systems

Introduction:

Special AC uninterruptible power supplies for electric power systems include two categories: dedicated power UPS and INV. Neither is equipped with an independent battery pack; instead, they share the battery pack with the DC power supply and serve as one of the loads of the DC system. Among them, the dedicated power INV generally operates in "backup" mode, mainly supplying power to loads with low power quality requirements such as emergency lighting in substations. The dedicated power UPS differs from INV in that it is equipped with an additional rectifier and normally operates in "online" mode, mainly supplying power to critical loads with extremely high power quality requirements such as computer monitoring systems in substations.

Deeply Integrated with DC Systems, Building the Core AC Power Fortress for Power Plants/Substations

Tonhe Technology Power-Specific UPS Panel is a next-generation AC uninterruptible power solution tailored specifically for power systems (power plants, substations). Strictly adhering to power industry standards, this product does not configure independent battery packs; instead, it connects directly as a load to the existing 220V/110V DC power system within the station, maximizing resource utilization and unifying maintenance.

The system offers two forms: Power-Specific UPS (Online) and Power-Specific INV (Standby), flexibly meeting the needs of different load levels: Power-Specific UPS: Adopts a "Rectifier + Inverter" double-conversion online architecture, providing pure and stable sine wave power for precision loads highly sensitive to power quality, such as computer monitoring, Remote Terminal Units (RTU), communication equipment, and relay protection. Power-Specific INV: Adopts an efficient standby architecture, specially designed for loads that require continuity but have relatively loose power quality requirements, such as emergency lighting and heating devices, offering economic efficiency.

Logic: Mains input is converted to DC via a high-frequency rectifier, paralleled with the station's DC bus, and supplied to a high-speed IGBT inverter, finally outputting pure AC power.

Zero-Delay Transfer: When mains power is abnormal or lost, the system is powered directly by the station's DC battery pack. A true 0ms zero-delay transfer is achieved between mains and DC inverter power, with no perception at the load end, ensuring no critical data loss and no malfunction of protection devices.

Applicable Loads: Emergency Lighting, Maintenance Power, General Fans. Logic: Under normal conditions, power is supplied directly from the mains via the bypass (high efficiency, low loss); when mains power fails, the static switch rapidly transfers to DC inverter power.,Fast Response: The inverter-bypass transfer time is ≤4ms, fully meeting the continuity requirements for loads like emergency lighting, while significantly reducing system operating costs and heat generation.

No Independent Battery Design: Directly reuses the existing DC battery packs in substations/power plants, saving costly battery procurement, installation space, and separate later-stage battery maintenance. Wide Voltage Input: Supports wide-range DC 110V/220V input, adapting to DC bus networks of different voltage levels, and maintains stable output even within DC bus voltage fluctuations

0ms/≤4ms Seamless Transfer: Based on high-speed DSP control and IGBT driver technology, ensuring AC output remains uninterrupted the instant mains power fails. N+X Hot-Standby Redundancy: Supports series or parallel hot-standby operation of multiple UPS hosts. When the main unit fails, the backup unit takes over instantly, exponentially increasing system reliability and meeting power safety regulations for "dual-configuration" requirements.

Power-Level EMC Design: Targeting the complex electromagnetic environment of substations (e.g., surges and high-frequency interference caused by switching operations), it features multi-level filtering and isolation circuits, with anti-interference capabilities far exceeding ordinary commercial UPS.,Comprehensive Intelligent Protection: Equipped with automatic protection and alarming functions for overload, overheating, output short circuit, AC input over/under voltage, and DC input over/under voltage. The static switch can complete uninterrupted switching between bypass and inverter automatically or manually, ensuring load safety under fault conditions.

Multi-Protocol Support: Comes standard with RS232/RS485 communication interfaces, supporting standard protocols like Modbus-RTU, allowing seamless integration into the plant/substation's system or DC screen monitoring system. Dry Contact Signals: Provides abundant passive dry contact interfaces to upload status signals such as "Mains Failure," "Battery Low," "Inverter Fault," and "Bypass Power" to the main control room in real-time, enabling remote unattended monitoring.

This product is extensively applicable to power plants, substations, and renewable energy stations, providing zero-interruption, high-quality power not only for core control loads such as Remote Terminal Units (RTU), communication carrier equipment, relay protection systems, and integrated automation monitoring backends, but also perfectly adapting to emergency lighting, evacuation indicators, AC loads for DC screens, intelligent inspection robot charging piles, online monitoring sensors, and security/fire protection systems, comprehensively ensuring the continuous and safe operation of power production, dispatch command, and auxiliary facilities under extreme conditions.

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1. Why choose us?

   We are a high-tech enterprise integrating manufacturing, sales, system solutions, and after-sales service. With over 290 successful projects for 220 kV to 500 kV substations and battery systems above 1000 Ah, Tonhe has become a leading DC power system supplier in China, holding over 40% market share and producing 1 million modules annually. Choose us for exceptional quality, reliable support, and proven value.

2. How can we guarantee quality?

   Our 8 advanced production lines, equipped with imported machinery, achieve 80% automation and up to 99% first-pass yield. All power modules undergo double-sided potting, conformal coating, and rigorous functional, environmental, and aging tests—ensuring reliable 24/7 performance in critical power infrastructures.

3. How We Support Your Business?

   A full range of power conversion modules, system-level low-voltage DC distribution cabinets for DC loads, data center power systems, as well as customized hardware and software power solutions.

4. Can customers get sample orders?

   Yes, you can get sample orders to test our quality. The cost of samples is paid by the customer.

5. What are the payment types?

   We accept payment via TT (Telegraphic Transfer).Product Introduction.

6. 350+ Elite R&D Engineers

   Tonhe Technology boasts a dedicated team of over 350 R&D engineers, representing a significant portion of our total workforce. Core team members hail from renowned domestic and international universities and research institutions, focusing on breakthroughs in cutting-edge power electronics technology. Deep Patent Portfolio: We hold hundreds of core technical patents covering high-frequency soft-switching, digital control algorithms, and EMC design. As a drafting unit for multiple power supply industry standards, we don't just follow standards; we help define them.

7. Global Service & Support System

   7x24 Remote Intelligent O&M: Leveraging IoT technology, the Tonhe Technical Support Center provides 7x24 remote diagnostic services. No matter where our customers are located, our expert team can quickly identify faults and provide solutions through remote data access, minimizing downtime to the greatest extent. International Certification Assurance: Our full product line passes CE,9001,IEC certifications, complying with entry standards for major global markets, ensuring worry-free procurement for overseas clients.