Products

Product Overview

System Composition

• AC power distribution unit with dual‑power automatic switching and 3‑stage surge protection
• High‑frequency switching rectifier modules (ZZG series)
• Silicon stack step‑down voltage regulation device
• Insulation monitoring and battery inspection units
• Centralized DC monitoring system (WZCK series)
• Standard IP30/IP40 power distribution cabinet

Key Features

1. Full Digital & Soft‑Switching Technology

   Adopts full ZVS/ZCS soft‑switching and digital control, high efficiency, low noise, small size, and excellent EMC performance complying with GB/T 19826–2014.
2. High Reliability & Redundancy

• N+1/N+2 modular parallel with hardware automatic current sharing
• Wide AC input range: 380V±20% / 220V±20%
• Full isolation dust‑proof design and three‑proof coating
• Complete protection: over/under voltage, overcurrent, over temperature, short circuit, silicon stack open‑circuit protection

3. Intelligent Battery Management

   Complete monitoring. Compatible with VRLA batteries and vented lead‑acid batteries,  enabling automatic float boost charge switching, online monitoring and temperature compensation. Real‑time single battery voltage and internal resistance detection, battery capacity analysis, and expert maintenance system maximize battery life and ensure safe operation.
4. Battery Compatibility & Parameters

   • Applicable Battery Types: VRLA batteries and vented lead‑acid batteries

   • System Nominal Voltage: 220V / 110V

   • Cell Configuration: 2V single battery; ≥104 cells for 220V system, ≥52 cells for 110V system

   • Charging Voltage Range (Ue = System Nominal Voltage)

   • Battery Management & Monitoring

     • Monitoring Function: Real-time online inspection of single battery voltage and internal resistance

     • Monitoring Accuracy: Voltage resolution 2mV, internal resistance resolution 0.01mΩ

     • Management Functions: Automatic switch between equal charging / float charging, charging current limiting, temperature compensation, capacity analysis, abnormality alarm

     • Protection Functions: Intelligent protection against battery overcharge, over-discharge and over-temperature

   • Brand & Configuration NotesThe DC power supply panel can be equipped with batteries from brands such as Shuangdeng, Sacredsun, Leoch, Vision, Ewosen, Narada, Delta, Panasonic, Yuasa, etc. Customer-specified brands are supported. Batteries are flexibly configured according to different market demands and specific customer requirements.                                                               

   5. Intelligent Monitoring & “Four Remote” Functions

   Layered distributed monitoring supports telemetering, tele‑signaling, tele‑control, tele‑adjustment. Equipped with color touch screen, USB data export, RS485/Ethernet, and IEC61850 communication for digital substation integration.

   6. Standardized & Easy Maintenance
   19‑inch 2U–3U standard modular structure, hot‑swappable rectifier modules, 35mm DIN‑rail installation, plug‑in terminals, and front maintenance design for fast and convenient operation.

Technical Specifications

• Nominal DC voltage: 110V / 220V
• Rectifier module current: 5A–50A
• Full‑load efficiency: ≥92%
• Power factor: ≥0.94
• Voltage stability: ≤±0.5%
• Ripple coefficient: ≤0.5%
• Operating temperature: –10°C ~ +55°C
• MTBF: ≥100,000 hours
• Communication protocols: Modbus, IEC61850, CDT, 104

Typical Applications

• Thermal power, hydropower, nuclear power plants
• 110kV–1000kV substations and UHV converter stations
• Industrial DC power supply and emergency systems
• Unattended intelligent substations