Product Overview

The DPAS series DC dual power supply rapid switching device is developed by Guogao Electric based on years of research in reliable multi-power supply systems, tailored for the power supply needs of various DC control systems in power plants, electric power, and communications. Also known as the DC dual power automatic transfer switch, it can be categorized into DPAS-Z, DPAS-R, and DPAS-M types according to application scenarios. It is primarily used in large-scale power plants, hub substations, converter stations, and other occasions where dual DC systems are completely isolated, as well as in DC single busbar segmentation scenarios. It features zero-delay switching and automatic busbar insulation detection.

In recent years, with advancements in high-speed processors, power electronics, and inverter technology, the device has matured significantly in terms of reliability, speed, and high capacity, meeting the design requirements for reliability and isolation in DC power supply systems. This series of products is widely applicable to DC power supply systems for secondary power equipment. The DPAS series DC dual power rapid switching device integrates DC busbar insulation monitoring technology, high-power inverter technology, analog isolation acquisition technology, and rapid power drop identification technology, ensuring fast switching of dual DC power supplies and fundamentally improving the reliability of DC power supply systems. The DPAS series can meet the requirements for 220V dual DC power switching, 110V dual DC power switching, and 48V dual DC power switching. DC dual power supply, dual power fast switching, dual power switching, DC dual power system, dual power switching.

Product Main Features

☆ The DPAS series DC dual power rapid switching device adopts digital DC/DC isolation tracking technology to ensure 0ms switching.

☆ Switching lifespan of over 100,000 cycles, with automatic recording of switching time and pre/post-switching information, retained for 10 years without loss.

☆ Designed with strong overload capability, high transient overload capacity, high reliability under long-term full load operation, and low standby power consumption.

☆ Online monitoring of DC busbar insulation, automatically testing positive and negative busbar insulation values in case of abnormalities, with alarm and recording.

☆ Flexible and adaptive operation modes, capable of automatic adaptation in single-unit or multi-unit modes.

☆ Internal system self-check of the DC switching device power supply, real-time monitoring of the inverter circuit, and automatic fault alarm.

☆ Comprehensive adoption of embedded SOC (System On Chip) design, with software using modular and high anti-interference design.

☆ Fully enclosed aluminum alloy power supply casing with high EMC characteristics, standard 2U and 4U chassis heights, suitable for centralized panel grouping.

☆ The DC dual power switch features multiple protection functions such as overvoltage, undervoltage, and overtemperature, comprehensively ensuring the reliability of the DC system.

Product Selection Table

Note: For currents exceeding 100A, customization is required based on requirements. For voltage levels such as 24V and 48V, special customization instructions are needed.

Example: DPAS-Z-DC220V/40A indicates: For master-standby type DC dual power supply isolation with zero-delay disturbance-free switching, DC busbar voltage of 220V, and busbar current of 40A.

Product Appearance and Dimensions

Note: For more schematic diagrams, please contact our business department.