5.3.3Adding or Replacing a Battery String

For replacements, proceed from Step 1 below. For new installations, go to Step 5 of this proce- dure.

! WARNING

THIS PROCEDURE IMPLIES THAT ALL OR PART OF THE

BATTERIES WILL BE MOMENTARILY TAKEN OUT OF

SERVICE.

THIS WORK SHOULD THEN BE COMPLETED DURING

REDUCED TRAFFIC HOURS AND/OR WITH A DIESEL

GENERATOR BACKUP AVAILABLE TO ENSURE NO LOSS OF

SERVICE DURING A POSSIBLE AC OUTAGE. IF MORE THAN

ONE STRING IS TO BE REPLACED, REPLACE ONLY ONE

STRING AT A TIME AND DO NOT DISCONNECT THE NEXT

STRING BEFORE THE PREVIOUS ONE IS RECONNECTED.

1.Removal of the old string:

Notify the alarm center of the possibility of incoming alarms during this procedure.

2.Above the battery stand, or at the top of the main cabinet for a 1500, 3000 or 4000 A system, or at the overhead busbars for a 6000 A system, locate, disconnect and isolate the charge leads (+ and -) coming from the batteries being replaced.

3.Disconnect the inter-cell connectors from the individual battery cells, and insulate each exposed terminal with electrician tape.

4.The removed batteries shall be disposed of in accordance with local, state and national environmental legislation.

5.Installation of the new string:

If this is an addition, locate and install the new battery stand according to the specifications and drawings. If this is a replacement, install the new battery string in the space vacated by the removed one.

6.Install the new batteries and use the new connecting material supplied with the batteries to interconnect them.

7.Perform the initial charging of this new battery string according to the battery manufacturer’s specifications using an external power supply.

8.Above the battery stand, or at the top of the main cabinet for a 1500, 3000 or 4000 A system, or at the overhead busbars for a 6000 A system, connect the charge leads (+ and -) coming from the new batteries.

9.Notify the alarm center of the end of the procedure.

Maintenance 47

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Liebert 4000, 3000, 6000 A, 1500 user manual Adding or Replacing a Battery String, Removal of the old string
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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.

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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.
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