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1
Overview
1.1
Introduction
The La Marche DCPS system utilizes high efficiency rectifiers, a highly intelligent system controller, I/O interface
board for alarms/ sensors, and a load/battery distribution panel. This complete DC system offers battery
management with low voltage disconnect, remote monitoring, remote configuration and configurable alarm
contacts.
The compact design of the system reduces space requirements and installation cost. The system is configured
with 48V/50A high efficiency rectifiers to provide a rated output current up to 200A. The DC distribution section
is comprised of 16 pluggable load breakers and 2 battery breakers.
1.2
Model Number Description
DCPS stands for DC Power System
1.3
Features
The DCPS has the following features:
Wide voltage range of 85VAC to 300VAC
Comprehensive battery management
Network application over a fast Ethernet (FE) port and an RS485/RS232 port
Communication such as the Simple Network Management Protocol (SNMP) and Hypertext Transfer
Protocol Secure (HTTPS) to enable remote management and unattended working
Remote software upgrade
Liquid crystal display (LCD) for display and operations
Web user interface (Web UI) for display and operations
Display in multiple optional languages
Hot-swappable DCR rectifiers and DCSC controller
Rectifier power factor up to 0.99
1.4
Work Principles
AC power enters rectifiers through the AC inputs of the DCD distribution panel. The rectifiers convert the AC input
into –48VDC output, which is directed by the DC distribution to DC loads along different routes.
When the AC power is normal, rectifiers power DC loads and charge batteries. When the AC power is absent,
rectifiers stop working and batteries start to power loads. After the AC power resumes, rectifiers power DC loads
and charge batteries again.
The DCSC controller monitors the operating status of each component in the power system in real time and
performs appropriate intelligent control. When detecting a fault, the DCSC generates an alarm.
Figure 1 – Conceptual Diagram
1
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