Operation | American Power Conversion XS 450 -48 specs

5 Operation

5.1 Technical Description

The Magnum XS 450 Power System is designed to supply safe –54 Vdc primary power through the use of up to nine rectifier modules. If installed with an internal battery string, it will supply backup power as well. The controller will monitor and control all system parameters including alarms, system voltage, and system current. Modular dc output distribution supporting loads ranging from 4 amperes to 400 amperes is available.

5.2 Rectifier Management

AC Input Power

The basic component of the power system is the rectifier module, which rectifies utility ac into nominal 48 Vdc. Each rectifier module requires ac voltage in the range of 176- 293 V, 50/60 Hz. The ac input can be an individual circuit to each rectifier or can be a convenient three- phase connection. Each rectifier can have a breaker installed in the ac input area to disconnect the rectifier module.

DC Output Power

The dc outputs of all the rectifiers in the system are connected to a common bus that is rated to carry the current of the entire system. The rectifier modules will each carry a share of the entire load, independent of the controller. Individual rectifier current will be within ± 5 A of the total current divided by the number of rectifiers. The rectifiers will continue to provide dc power if the controller is removed or fails.

Rectifier alarms reporting

The rectifier has numerous sensors inside the unit that monitor fan fail, high temperature, high/low voltage, etc. These rectifier sensors trigger outputs that are monitored by a serial rectifier controller inside the rectifier. The serial rectifier controller is in constant communication with the main controller. The controller can trigger output relays in the event of a rectifier alarm. Refer to appropriate controller user manual for details.

System Voltage Control

The controller monitors and adjusts the system voltage, based on the parameters, Float Voltage, Battery Maximum Recharge Current, and Battery Temperature Compensation. In the event of controller removal or failure, the rectifiers will control the voltage at a programmed default level.

Rectifier Current

Rectifier current is measured inside each rectifier and relayed to the main controller. The controller monitors individual rectifier currents and displays total system current as a sum of rectifier currents. Refer to the specific controller user’s manual for more information.

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

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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.