AC Remote Power Master Unit
Product Overview:
LCX Power-YAS AC remote-power-supply local-end unit belongs to communication base station & off-grid no-power-area series.
It is the core power-generation unit of AC remote power-supply system. It adopts full-digital DSP closed-loop sine-wave inversion & isolated boost topology.
It takes AC or DC power from local machine-room, converts it into adjustable high-voltage isolated AC, and transmits power to multiple AC remote-end converters via long-distance cables. Modular hot-swap design supports N+1 redundant parallel expansion.
Built-in comprehensive line fault detection circuit, it can rapidly identify line short-circuit, open-circuit, electric-leakage and strong-electricity intrusion faults. It switches to low-voltage inspection voltage during fault, and auto-recovers power supply after fault elimination.
Cooperating with matching AC remote-end units, it solves power-access difficulties for scattered outdoor AC-type loads, reduces site construction cost and on-site battery maintenance workload for off-grid locations.
Typical Applications:
· Highway, tunnel, railway along-line camera, illumination, AC monitoring equipment remote power-supply
· 4G/5G pull-away base station AC-type peripheral equipment centralized power-supply
· Mountainous, pastoral, island scattered outdoor AC load remote power-supply
· Meteorology, hydrology, environmental-monitoring outdoor AC instrument terminal
· Oil-gas field, pipeline unattended AC monitoring equipment power-supply system
· Security monitoring, outdoor industrial sensor AC centralized remote-power-supply project
Technical Specifications:
1. Topology & System Architecture Isolated AC boost sine-wave inversion topology, full-digital DSP closed-loop control. Modular hot-swap power unit, support N+1 redundant parallel expansion and active current sharing. One local-end unit can drive multiple matching AC remote-end units simultaneously.
2. Electrical & Transmission Performance Wide-range AC / DC dual-mode input, adapt to mains, battery, wind-solar hybrid input-Isolated high-voltage AC output, output voltage adjustable according to transmission distance-System comprehensive conversion efficiency ≥93%-Output voltage precision ≤±0.5%FS, THD ≤3%, low waveform distortion-Fast response; line fault protection action time ≤80ms；Auto-recovery after fault removal.
3. Complete Line-oriented Protection Mechanism Special line-detection circuit built-in. Support short-circuit, open-circuit, electric-leakage, strong-electricity intrusion, over-voltage, over-current, over-temperature and lightning surge protection. When line fault occurs, cut high-voltage AC output and switch to low-voltage inspection voltage to guarantee personnel & equipment safety; fault alarm and fault-event record function.
4. Working Mode Compatibility Support mains priority, battery backup, wind-solar hybrid input working modes. Can connect upper-layer EMS energy-management system. Realize centralized remote AC power supply for multi-point outdoor loads.
5. HMI & Communication Interface Color touch-screen HMI with Chinese-English bilingual. Real-time display local-end input, remote-supply high-voltage AC, output current, line status and alarm information. Standard RS485, Ethernet interfaces, Modbus protocol. Support remote monitoring, parameter setting, fault locating for multi-site centralized management.
6.Cooling & Environmental Adaptability Intelligent temperature-controlled air cooling. Optional cabinet-type outdoor version with higher protection grade. Operating temperature:-20℃ ~ +55℃. Dust-proof and moisture-proof design, adapt to machine room and outdoor cabinet application environments.
Technical Parameters and Selection
Technical Parameters and Selection
