Figure 2 Front view of a typical 6000 A Helios DC System 4000/48 power system

Aux dist. cabinets

Main cabinet

1200 A rectifier cabinets

Cables are used for inter-cabinet connections (1500, 3000 and 6000 A systems) or connections to the overhead busbars (6000 A system) for ease of expansion on live systems. In a 1500, 3000 or 4000 A systems, the power system battery return (BR) busbar is mounted externally from the cab- inet to facilitate the connections of the battery return cables. In a 6000 A system, a separate BR busbar dedicated to the battery returns for the loads is mounted externally from the overhead busbar duct to facilitate the connections of the load battery return cables.

The Helios DC System 4000/48 provides a variety of monitoring and alarm features, such as high/ low float and high/low voltage alarm, high voltage shutdown, fuse and breaker alarm and rectifier failure alarms.

The Helios DC System 4000/48 uses Helios Rectifiers 200I/48, Helios Rectifiers 200E/48 or Helios Rectifiers 100/48 connected in parallel as building blocks to reach the maximum capacities. The Helios Rectifiers 200I/48 operate from a 380 V to 415 V three phase, 50 or 60 Hz AC source. The Helios Rectifiers 200I/48 operate from a 480 V three phase, 50 or 60 Hz AC source. The Helios Rectifiers 100/operate from a 208 V to 240 V single phase, 50 or 60 Hz AC source.

The 1200 A rectifier cabinet accepts up to six Helios Rectifiers 200I/48 or 200E/48, while the 1000 A rectifier cabinet accepts up to 10 Helios Rectifiers 100/48.

The control and distribution cabinet and the auxiliary distribution cabinets are available with distribution busbar risers of 2000 A or 3000 A capacity.

The cabinets are seismic qualified to zone 4 (Bellcore) when anchored to a concrete floor whose compressive strength is at least 2.11 kg/mm2 (3000 psi) and when equipped with a seismic kit. The cabinets are seismic qualified to zone 2 without the seismic kit.

The cabinets are equipped with a ventilated, lockable door, a ventilated top cover and two rear ventilated panels.

In many applications, such as with DMS, a consistent single-point ground (SPG) topology must be maintained for all associated equipment. The Helios DC System 4000/48 complies with this requirements for single-point grounding (the isolation kit is required).

2.2Applications

The Helios DC System 4000/48 is designed to operate with DMS systems or any other telecommu- nication systems whose input is nominal -48 V DC and whose current requirements do not exceed 6000 A capacity.

Introduction 3

Page 8 Page 10
Page 9
Image 9
Liebert 4000, 3000, 6000 A, 1500 user manual Applications
Page 8 Page 10

1500, 6000 A, 4000, 3000 specifications

The Liebert 3000 is a cutting-edge power protection solution designed to provide reliable and efficient backup power for critical applications. This uninterruptible power supply (UPS) system is engineered to safeguard sensitive electronic equipment from power disturbances, ensuring uninterrupted operations in data centers, telecommunications, and industrial environments.

One of the standout features of the Liebert 3000 is its high-efficiency design. With an efficiency rating of up to 94%, the system minimizes energy loss, resulting in lower operational costs and a reduced carbon footprint. This is particularly important in today's environmentally conscious climate, as organizations strive to meet sustainability goals while maintaining top-tier performance.

The Liebert 3000 employs advanced technologies to enhance its functionality. It incorporates online double-conversion technology, which provides a continuous supply of clean and regulated power. This technology ensures that connected loads receive stable voltage and frequency, shielding them from voltage spikes, sags, and outages. Additionally, the UPS offers features such as automatic battery testing, which helps ensure peak battery performance and reliability.

Another key characteristic of the Liebert 3000 is its modular design, allowing for flexible scalability. This means that organizations can easily expand the capacity of their UPS system as their power needs grow, without the need for extensive system overhauls. The modular architecture also facilitates simplified maintenance and reduces downtime, as individual modules can be serviced without interrupting power to the critical load.

The system is equipped with comprehensive monitoring and management capabilities. The Liebert 3000 provides real-time data on power usage, battery status, and system performance, enabling facility managers to make informed decisions and proactively address potential issues. The integration of remote management tools allows for seamless monitoring from anywhere, providing peace of mind for operators.

Overall, the Liebert 3000 combines high efficiency, advanced technology, and flexible design to deliver a robust power protection solution. Its reliability and performance make it a preferred choice for organizations seeking to protect their critical infrastructure while enhancing operational efficiency and sustainability. As businesses continue to rely on technology for their everyday operations, the Liebert 3000 stands out as a dependable safeguard against the uncertainties of power quality.
Top Page Image Contents