Line Conditioners

Line conditioners, also known as power conditioners or power line conditioners, are regulators that protect equipment from excessive fluctuations in the utility line, or power system voltage. These devices are intended to improve the quality of power delivered to the electrical load equipment. Liner conditioners often refer to devices that act in one or more ways to filter circuits and deliver the proper level of voltage to enable the load equipment to run normally.

Unlike other safeguard equipment like surge protectors, line conditioners clean noise from the signal first to eliminate any interference that may be on the line. Noise can occur for a number of reasons, including fluctuations in the AC current; inferior, damaged, or incorrect wiring; interference from other equipment; overhead lighting, or weather. Using liner conditioners to reduce noise can make operations faster, increase reliability for network operations, improve modem, and can overall provide better quality.

Important specifications to consider when searching for line conditioners include power rating, input voltage, output voltage, voltage regulation accuracy, phase, and frequency. The power rating is usually expressed in volt-amps, which is the product of the maximum RMS voltage and the RMS current that the conditioner can handle. Input voltage is the nominal line voltage to which the conditioner is connected. The output voltage is regulated or conditioned voltage. The voltage regulation accuracy is the accuracy with which the output voltage is controlled. Choices for phase are single phase or three phases. General public or standard commercial voltages are typically single phase. Examples of these line conditioners include computers, office equipment, and many types of laboratory instruments. Three phase power is typically reserved for industrial use for machines that benefit from its efficiency. Industrial motors and machines with motors often use three phase power. Frequency choices include 50 Hz, 60Hz, and 400 Hz.

Common configurations for line conditioners include computer board, portable or benchtop, hard wired, rack mount, DIN rail, wall mount, and floor or free standing. While many line conditioners supply a single outlet for conditioned power, some feature multiple outlets. This is most often for equipment that does not consume a great deal of power, such as computers or light instrumentation. Not applicable for hard-wired or specialty conditioners such as boards.

Features common to line conditioners include medical rating, frequency conversion, bypass switch, and readout or indicators. Conditioners with medical ratings are designed and rated for medical or dental use; may include hospital grade ratings. Conditioners with frequency conversion include power conditioners that also convert input frequency to a different value, e.g. 60 Hz to 50 Hz converters. Bypass switches for taking line conditioners "off-line" without physically removing them; allows unconditioned power to pass through. Readouts or indicators include visual display indicating status or performance; may include simple LED indicators or more elaborate readouts.

• Vacuum and Pressure Handbook: Vacuum Accessories and Systems
  Summary of Pressure Sequence The sequence of compressed air flow in a pneumatic system is shown again in Fig 28: * Air Compressor - outside air is compressed to a pressure higher than that of the...
  (read more)
• Transmission Line Insulator Condition Monitoring
  Transmission line insulator condition monitoring is of increasing interest with the ageing of many transmission lines constructed since the 1950s. Porcelain and toughened glass and more recently...
  (read more)
• Thermographic Monitoring of Refractory Lined Petroleum Refinery Equipment
  Infrared thermography is used throughout the petroleum refining industry and has a proven track record of cost saving in many areas of the business. This paper describes the examination and monitoring...
  (read more)

Pages: 1 - 3 of 392

Part Numbers for Line Conditioners