4 Commissioning

4.1 Pre-Commissioning Inspection

Environment

1.Ensure the dc system environment is suitable for operation.

2.Ensure that there is sufficient clearance around the system for service.

3.Ensure that there is no sign of damage to the dc system.

4.Disable installed alarms before servicing the unit. This will allow the unit to be serviced without creating false alarms.

Electrical Installation

1.Ensure that the dc wiring is properly installed, sized, terminated and identified.

2.Ensure that the ac wiring is properly installed, sized, terminated and identified.

3.Ensure that the battery wiring is properly installed.

4.Ensure that the dc output over-current protection devices are adequate for the size of wiring installed.

5.Ensure that the dc Positive is bonded to the principal ground point of the building.

6.Note the resistance of the ground bond.

7.Note any currents flowing in the ground.

8.Record ambient temperature.

9.Verify that the battery polarity is correct.

10.If a battery disconnect device(s) is/are present, note the following for each device:

a.DC Voltage Rating.

b.DC Current Rating

c.Interrupting Current Rating

Battery Visual and Safety Inspection

1.Check the mechanical integrity of the battery framing, racking, or cabinet.

2.Check that the battery framing, racking or cabinet is adequately secured to the floor.

3.Check compliance with seismic zone requirements.

4.Check the general appearance and cleanliness of the battery.

5.Record the manufacturer, model number, and capacity of the battery string(s).

6.Record the batch number, date code, and serial number of each cell or mono-block, and any other pertinent information that is available on the battery cells.

7.Check that the cell or mono-block numbering starts at the positive battery string terminal and is correct.

8.Check that anti-oxidation compound is properly applied.

9.Visually inspect each cell for:

a.Cracks.

b.Case leaks.

c.Post-seal leaks.

d.Pressure relief valve leaks (VRLA only).

e.Case swelling (VRLA only).

Magnum XS 450 Power System –48 VDC User’s Manual

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American Power Conversion XS 450 -48 user manual Pre-Commissioning Inspection, Environment, Electrical Installation

XS 450 -48 specifications

The American Power Conversion (APC) XS 450 -48 is a reliable and efficient power supply solution designed for critical applications requiring a consistent and stable power source. This solution is particularly beneficial for telecommunications, data centers, and industrial settings where power reliability is paramount.

One of the key features of the XS 450 -48 is its ability to deliver 450 watts of continuous power, ensuring that connected devices receive uninterrupted power supply. Its 48-volt output makes it ideal for telecom requirements, where 48V systems are standard. The unit provides a compact and space-saving design, making it suitable for installation in rack-mounted configurations, optimizing the utilization of valuable real estate in server rooms or equipment racks.

The XS 450 -48 utilizes advanced technologies that enhance its performance and reliability. It is equipped with an active power factor correction (PFC) system that significantly reduces harmonic distortion. This feature not only improves system efficiency but also complies with various regulations concerning power quality. Additionally, the power supply includes built-in over-voltage protection, over-current protection, and short-circuit protection, ensuring that both the power supply and the connected devices are safeguarded against electrical faults.

The unit is designed for high efficiency, often exceeding 90% under full load conditions. This not only reduces energy costs but also minimizes heat generation, contributing to a quieter operation environment. The XS 450 -48's intelligent thermal management system allows it to operate in a range of temperatures, making it highly versatile and adaptable to varying environmental conditions.

Furthermore, monitoring and management capabilities are integrated into the XS 450 -48 with optional external monitoring systems. These systems provide critical insights, allowing technicians to track real-time performance metrics, detect potential issues early on, and perform preventive maintenance.

In conclusion, the American Power Conversion XS 450 -48 stands out as a robust power supply solution that combines reliable performance, advanced protection features, and high efficiency. Its design caters to the specific needs of telecommunications and data centers, making it an indispensable asset for maintaining the uptime and integrity of critical systems. With its range of features and reliability, the XS 450 -48 continues to be a preferred choice among professionals in the field.