AC/DC Power Supply Panel for 35kV/10kV Switching Stations & Distribution Stations

April 10, 2026 min read

1. Overview

35kV/10kV switching stations and distribution stations are core nodes of medium-voltage power transmission and distribution. As the "power heart" of the station, the AC/DC panel undertakes the key responsibility of providing stable AC and DC power for primary equipment operation, secondary control and protection devices, and communication equipment. Its operational reliability directly determines power grid safety, equipment stability and project economy, and it is the core equipment to ensure the continuous trouble-free operation of the station.

We provide an integrated AC/DC panel power solution for 35kV/10kV stations:

AC/DC integrated panels (DC panel, AC panel, AC/DC integrated panel) for station control protection and equipment operation

DC charging modules, battery packs and monitoring systems adapted to medium-voltage station scenarios, comprehensively ensuring stable power supply of the station

Our solution helps customers achieve zero interruption of station power supply, reliable equipment operation, efficient and convenient operation and maintenance, and long-term safe and stable operation, which fully meets the operational needs of 35kV/10kV switching stations and distribution stations.

2. Application Scenarios & Pain Points

2.1 Core Application Scenarios: 35kV switching stations and distribution stations; 10kV switching stations and distribution stations; Medium-voltage power distribution nodes in industrial parks and urban power grids; Unattended medium-voltage power transmission and distribution stations
2.2 Typical Pain Points: 1. Grid voltage fluctuations and instantaneous power outages lead to unstable output of AC/DC panels, causing failure of primary equipment operation and misoperation or refusal of secondary protection devices, which threatens power grid safety.; 2. The charging module of traditional AC/DC panels has low efficiency and large ripple, which affects the service life of the battery and increases the cost of equipment replacement and maintenance.; 3. Lack of intelligent monitoring function, unable to real-time grasp the operation status of AC/DC panel and battery health, delayed fault diagnosis, which is prone to power interruption accidents.; 4. Strong electromagnetic interference, wide temperature fluctuations and harsh operating environment in the station lead to easy damage of AC/DC panel components and reduce the operational reliability of equipment.; 5. The AC/DC panel has poor compatibility with other equipment in the station, cumbersome deployment, and cannot flexibly adapt to the power needs of stations with different capacities.

3. Integrated Solution Architecture

3.1 Core Positioning of the Solution: Positioning: Provide stable, reliable and intelligent AC/DC power supply for 35kV/10kV switching stations and distribution stations, covering the full scenarios of primary equipment operation power supply and secondary equipment control power supply, adapting to the operation needs of unattended stations.
3.2 Core Equipment Composition: DC Panel: Adopt high-frequency switching charging module, with overcharge, over-discharge, over-current and over-temperature protection functions, output stable DC power, provide operation power for primary equipment such as circuit breakers and isolating switches, and provide control power for secondary equipment such as relay protection and automation terminals.; AC Panel: Responsible for accessing the AC power of the station, after filtering and voltage stabilization, provide stable AC power for AC/DC panel charging modules, station lighting, ventilation equipment and other AC loads, with commercial power switching function to ensure continuous supply of AC power.; AC/DC Integrated Panel: Integrate the core functions of DC panel and AC panel, with compact structure, saving installation space, adapting to small switching stations, distribution stations and space-constrained scenarios, and realizing integrated supply and management of AC and DC power.; Battery Pack: Adopt valve-regulated sealed lead-acid battery or lithium battery as backup power supply. When the commercial power is interrupted, it can quickly switch to supply power for DC loads, ensure the continuous operation of key equipment, and support long-delay power supply customization.; Intelligent Monitoring System: Real-time monitor the output voltage, current, charging module status and battery health of the AC/DC panel, with fault alarm, data recording and remote monitoring functions, support linkage with the station automation system, and improve operation and maintenance efficiency.
3.3 Core Technical Advantages: Stable and Reliable: The efficiency of the high-frequency charging module is ≥96%, the output ripple is ≤0.5%, the voltage regulation accuracy is high, it is adapted to grid voltage fluctuations (±20%), and the power output is stable; the battery pack has deep charge and deep discharge protection to extend the service life.; Intelligent Operation and Maintenance: Support remote monitoring, fault sound and light alarm, real-time data upload, can remotely view equipment operation parameters and battery status, realize early fault warning and rapid troubleshooting, and adapt to the needs of unattended stations.; Strong Anti-Interference: Adopt EMC electromagnetic compatibility design, with strong anti-electromagnetic interference ability, adapt to the strong electromagnetic environment of 35kV/10kV stations, and avoid component damage or misoperation.; Flexible Adaptation: Modular design, support capacity expansion, can customize DC output capacity (220V/110V, 10A-200A) according to the station scale (small, medium, large), and the installation method supports cabinet type and floor type, adapting to different site needs.; Safe and Compliant: Comply with GB/T 19826-2014 "General Technical Conditions for DC Power Supply Equipment in Power Engineering", with complete protection functions, to prevent power grid safety accidents caused by power supply faults.
3.4 Deployment Method: 1. According to the station scale and load demand, customize the AC/DC panel capacity, module configuration and battery pack capacity to ensure that the power supply matches the load.; 2. Adopt cabinet or floor installation, deploy in the station control room, close to the load center, reduce line loss, and facilitate operation and maintenance.; 3. The intelligent monitoring system is linked with the station automation system to realize data sharing and remote control, and grasp the equipment operation status without on-site duty.; 4. It is compatible with the existing control and protection equipment and communication equipment in the station, and can complete deployment and commissioning quickly without major modification to the existing system.

4. Solution Highlights

Scenario Customization
Fully adapt to the operating environment and load characteristics of 35kV/10kV switching stations and distribution stations, and customize solutions according to the station scale and unattended needs, which are closely integrated with actual application scenarios.; Zero Power Interruption Guarantee
When the commercial power is interrupted, the battery pack quickly switches to supply power. With the stable charging module, it ensures that the power supply of primary equipment operation and secondary control and protection equipment is not interrupted, and guarantees the power grid safety.; Intelligent and Efficient Operation and Maintenance
Remote monitoring, fault early warning and data recording functions greatly reduce operation and maintenance costs, reduce on-site duty personnel, and improve station operation and maintenance efficiency.; Stable and Durable
Wide temperature adaptability (-20℃-60℃), strong anti-interference ability, high-quality brand components are selected, and the mean time between failures (MTBF) is long, adapting to the long-term stable operation of the station.; Safe and Compliant
Comply with national power industry standards and power grid company requirements, with complete protection functions, to eliminate potential safety hazards caused by power supply faults.; Outstanding Cost-Effectiveness
Modular design, expandable capacity, low later maintenance cost. Compared with traditional AC/DC panels, the energy consumption is reduced by 15%-20%, which is more economical for long-term use.