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Liebert eXM User Manual–10-40kVA, 50/60Hz ®
Liebert eXM User Manual–10-40kVA, 50/60Hz ®

BDTIC
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... fatal hardware errors, or soft errors. Soft errors are caused by fast ESD transients which are not damaging the hardware, but trigger the interface and corrupt the data integrity. The result can be a software system crash, with time consuming reboot, or a malfunction of the device only. In most time ...
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... systems, high voltage drive is not required. The amplifier circuit may function adequately from a normal dual rail op-amp supply, or even from a single 9 volt battery. For analysis purposes, even lower applied voltages, e.g., the noise source of a spectrum analyzer at 70 mVrms, are sufficient to ins ...
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... especially for the purpose of familiarizing service personnel with the testing, troubleshooting and repair of air-cooled, prepackaged automatic standby generators. Every effort has been expended to ensure that information and instructions in the manual are both accurate and current. However, Generac ...
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... In stand-alone photovoltaic (PV) systems, charge controllers regulate the current from the PV array in order to protect the battery from being overcharged. In addition, most controllers regulate the current to the load, thereby protecting the battery from deep discharges. The charge controller is th ...
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... contactors, SCR power modules, instrument transformers and all other medium voltage devices. Adequate room is provided for motor lead connections to be made with minimum conductor bend. A Low Voltage Control Compartment houses the digital microprocessor controller and LCD keypad operator interface, ...
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Rectifier



A rectifier is an electrical device that converts alternating current (AC), which periodically reverses direction, to direct current (DC), which flows in only one direction. The process is known as rectification. Physically, rectifiers take a number of forms, including vacuum tube diodes, mercury-arc valves, copper and selenium oxide rectifiers, semiconductor diodes, silicon-controlled rectifiers and other silicon-based semiconductor switches. Historically, even synchronous electromechanical switches and motors have been used. Early radio receivers, called crystal radios, used a ""cat's whisker"" of fine wire pressing on a crystal of galena (lead sulfide) to serve as a point-contact rectifier or ""crystal detector"".Rectifiers have many uses, but are often found serving as components of DC power supplies and high-voltage direct current power transmission systems. Rectification may serve in roles other than to generate direct current for use as a source of power. As noted, detectors of radio signals serve as rectifiers. In gas heating systems flame rectification is used to detect presence of a flame.Because of the alternating nature of the input AC sine wave, the process of rectification alone produces a DC current that, though unidirectional, consists of pulses of current. Many applications of rectifiers, such as power supplies for radio, television and computer equipment, require a steady constant DC current (as would be produced by a battery). In these applications the output of the rectifier is smoothed by an electronic filter (usually a capacitor) to produce a steady current.More complex circuitry that performs the opposite function, converting DC to AC, is called an inverter.
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