Product Overview
The WattPower Distribution DC Power System is a high-reliability, intelligent DC power solution designed for power distribution networks, specifically engineered for 10kV~35kV secondary equipment power supply in distribution automation systems.
With dual AC input auto-switching, high-frequency SMPS rectifier modules, intelligent battery management, and comprehensive monitoring capabilities, it provides stable and reliable DC operating power for circuit breakers, protection relays, automation devices, and communication equipment in distribution substations.
Key Features
- Dual AC Input Auto-switching — Seamless automatic transfer between two independent AC power sources for uninterrupted DC supply
- High-frequency SMPS Technology — Advanced high-frequency switch-mode power supply modules with ≥94% efficiency and compact design
- Intelligent Touchscreen Monitoring — 7-inch full-color touchscreen HMI with real-time status display, fault diagnosis, and event logging with GPS time-stamp
- Comprehensive Protection — Complete over-voltage, over-current, short-circuit, surge (Class C), and reverse-polarity protection
- Smart Battery Management — Temperature-compensated charging, automatic capacity testing, and battery health monitoring
- Modular Hot-swappable Design — N+1 redundant rectifier modules, hot-swappable for zero-downtime maintenance
Technical Parameters
| Distribution DC Power System | |
|---|---|
| AC Input | |
| Input Voltage | 380V AC ±15%, 3Ph+N+PE |
| Input Frequency | 50Hz ±5% |
| Input Configuration | Dual AC input, auto-transfer |
| Power Factor (with PFC) | ≥0.99 (full load) |
| THDi | ≤3% (full load) |
| DC Output | |
| Rated Output Voltage | 220V DC / 110V DC (configurable) |
| Output Voltage Range | 198V~242V DC (220V system) / 99V~121V DC (110V system) |
| Rated Output Current | 10A / 20A / 30A / 40A / 50A / 100A (configurable) |
| Voltage Regulation | ≤±0.5% (steady state) |
| Load Regulation | ≤±0.5% |
| Ripple Voltage | ≤200mVp-p |
| Rectifier Module | |
| Module Rated Current | 10A / 20A / 30A per module |
| Module Efficiency | ≥94% |
| Current Sharing Imbalance | ≤5% |
| Cooling Method | Intelligent temperature-controlled fan / natural cooling (depends on model) |
| Battery System | |
| Battery Type | VRLA (AGM/GEL) / LFP (optional) |
| Battery Capacity | 20Ah ~ 200Ah (configurable) |
| Float Charge Voltage | 2.25V/cell (12V system: 13.5V) |
| Equalize Charge Voltage | 2.35V/cell (12V system: 14.1V) |
| Monitoring & Communication | |
| Monitoring Interface | 7-inch color touchscreen HMI |
| Communication Ports | RS485 / RS232 / Ethernet |
| Supported Protocols | MODBUS / IEC 60870-5-103 / IEC 61850 |
| Alarm Output | Dry contact (NO/NC), audible & visual alarm |
| General Data | |
| Ingress Protection | IP30 / IP40 (optional) |
| Operating Temperature | -10°C ~ +50°C |
| Relative Humidity | ≤90% (at 25°C, non-condensing) |
| Altitude | ≤2000m |
| Noise Level | ≤55dB (1m distance) |
| Insulation Resistance | ≥10MΩ (500V DC) |
| Dielectric Strength | 2500V AC, 1min, no breakdown |
Core Advantages
High-frequency SMPS Technology
- Advanced high-frequency switch-mode design
- Efficiency ≥94% across load range
- Compact size, high power density
- Low harmonic distortion (THDi ≤3%)
Dual AC Input Auto-switching
- Seamless transfer between two AC sources
- Zero interruption to DC load
- Automatic mains/generator switch
- Configurable transfer delay time
Intelligent Touchscreen HMI
- 7-inch full-color touchscreen display
- Real-time voltage/current/fault monitoring
- Fault location diagnosis display
- Event logging with GPS time-stamp
Smart Battery Management
- Temperature-compensated charging
- Automatic battery capacity test
- Battery health status monitoring
- Float/equalize charge auto-switch
N+1 Redundant Reliability
- Hot-swappable rectifier modules
- N+1 redundancy configuration
- Automatic current sharing ≤5%
- Multi-level protection system
Flexible Communication
- RS485, RS232, Ethernet interfaces
- MODBUS standard protocol
- IEC 60870-5-103 for power systems
- IEC 61850 for substation integration
Application Scenarios
10kV~35kV Distribution Substations
Distribution Automation Systems
Communication & Control Equipment
Industrial Power Systems
Renewable Energy Substations
Infrastructure & Utilities
Commercial Buildings
Hospitals & Healthcare
Need a Reliable DC Power Solution for Your Distribution Network?
Contact our engineering team for customized system design, technical specifications, and competitive pricing.
Contact Us Now
Email: sales@wattpower.com.cn | WhatsApp: +86 15916287178