Emerson NX series power supply The characteristics are as follows:
1. High system efficiency:
When the load rate of nxr system is 50% - 75%, the efficiency is as high as 96%. When the system load rate is 25%, the efficiency is more than 95%.
Excellent rectifier performance
No matter linear load or non-linear load, rectifier has very small input current harmonics (< 3%) and very high input power factor (> 0.99), which can reduce the cost of front-end distribution devices and cables, and greatly reduce the capacity of front-end generators.
1. Strong output load capacity:
The output power factor of nxr series UPS is 0.9. Taking 160KVA capacity as an example, nxr can carry 144kw active load, while traditional ups with output power factor of 0.8 can only carry 128KW active load.
Compact structure design, small floor area
The compact structure design greatly reduces the requirements of installation space and floor load-bearing, so that users can save space and investment. The installation area of 160KVA base is about 0.5m2.
All digital control technology based on DSP
In Liebert nxr UPS, all power converters (such as rectifier, inverter and DC / DC converter) and system components (such as bypass and inverter static switch) are controlled by two DSPs (digital signal processor).
The high speed and control performance of DSP enable ups to achieve high performance and reliability by advanced flexible logic algorithm.
1 Advanced Parallel function
The parallel function not only increases the capacity of UPS system, but also further improves the reliability of power supply. For example, in N + 1 system, if one UPS exits due to accidental failure, the remaining system can still improve the stable power supply to the precise load.
The Liebert nxr series UPS can realize up to 4 parallel UPS without adding any function cards or other options. In case of capacity expansion or redundancy, the setting of parallel system can be completed only by adding parallel cables.
The parallel function is realized by parallel cable, real-time load sharing regulation and flexible intelligent control. Precision loads are protected by greater reliability and availability under various operating modes and conditions.
1 very wide input voltage range
The input voltage range of rectifier is from 228v to 476v (derating below - 25%) and frequency range from 40Hz to 70Hz. A wider battery life is possible by preventing the ups from discharging over a wider range of voltages.
1 multi function panel for configuring graphic LCD display
Liebert NXR UPS The multi-functional panel is equipped with large-scale graphic display LCD, analog LED display, function keys and menu keys. Through graphical LCD display and user-friendly menu operating system, users can easily non browse input, output, load and battery parameters. And the current UPS status and alarm can be automatically and quickly notified. In addition, in order to prompt the warning and fault, the buzzer will beep and the fault indicator LED will be illuminated. More than 500 historical records can be used as reference for fault analysis.
1 high power battery charger
Support the use of large capacity battery for long delay backup. When the battery with one hour backup time is configured, the battery capacity can be restored within 10 hours; when the battery with more than one hour backup time is configured, 90% of the full capacity can be charged within 10 hours.
A high-efficiency internal charger can shorten the battery recovery time before another power failure, without adding the external charger necessary for long time delay.
1 battery cold start function
The Liebert nxr UPS can be started directly from the battery without mains power. This allows battery only power or for special high reliability environments.
The appearance design of UPS enables ups to be very coordinated with other modern equipment in it room.
1 comprehensive front maintenance design
The structural layout of UPS meets the requirements of front maintenance and repair, and reduces the installation space required for the rear and side. Major components and devices can be replaced at the front.
1. Advanced intelligent monitoring function
UPS can access advanced network environment through ups monitoring software, such as: UPS monitoring based on windows, hirolink + hirovisor, sitenet, Modbus / jbus, sitescan, sitescan 2, SNMP and other protocols. It can monitor the ups itself and shut down the server and PC automatically.
Emerson UPS power supply can give sound or SMS alarm after selecting and defining alarm conditions.
1 self diagnosis and self detection function
UPS has the functions of self diagnosis and self inspection
(1) Fast and complete self inspection of system components;
(2) LED indication, quick understanding of UPS status;
(3) Internal recording chip records UPS fault status and parameters;
(4) 500 parameters can be traced and analyzed easily.
(5) LCD displays current and historical fault alarms, and can be uploaded through communication ports (RS232, LAN);
(6) The ups state parameter record before and after the fault is convenient to analyze the fault reason;
(7) LCD can display rectifier, inverter and monitoring software version information.
1 built in dual bus function
The parallel operation of the dual bus or UPS (UPS) system is even in different modes of operation.
UPS can be very convenient to form a dual bus system to meet the requirements of dual power input load power supply.
Inverter with short circuit protection
The inverter can withstand the impact of load short circuit and restart after the short circuit is eliminated.
1 transient recovery function
When the load changes, the output can return to the standard output within 20ms.
1 total battery management (TBM)
The revolutionary comprehensive battery management function keeps the ups battery in good condition all the time
(1) TBM supports ups to use various types of batteries, such as lead-acid batteries, nickel cadmium batteries, etc
(2) TBM can be used to determine floating charge, equalizing charge or terminating charging
(3) TBM allows the user to check the good condition of the battery by discharging
(4) TBM can compensate temperature automatically
(5) TBM can set up periodic battery automatic detection
(6) TBM can predict the current battery capacity
(7) TBM ensures that the battery is protected from over discharge
(8) TBM can give early warning of battery failure
(9) TBM provides options for battery module fault detection
TBM always keeps the battery in better condition to ensure that UPS uses healthy battery pack. Therefore, the service life of battery and the availability of UPS system are extended.
1 dual input
Liebert nxr UPS supports two-way input, that is, rectifier input and bypass input can be connected separately, but the input power line is required to be the same. In this state, the same reliability will be provided, because the probability of two inputs failure at the same time is small.
1 convenient access to and from the line
Nxr standard configuration system is compatible with the up and down incoming line mode. For the occasion of upper outlet demand, there is no need to add additional upper outlet option, which is convenient for wiring and saves space.