Analysis of Power Quality to Ensure Maximum Efficiency of the Electrical Facility and Reliable Operation of Equipment

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  • 5 min read

Bad power quality is caused by the distortion of the power line waveform. The line waveform distorts due to non-linear loads connected to the electrical facility like SMPS, ballasts, heaters and rectifiers. Poor power quality can cause various problems like equipment degradation, unreliable operation of machinery, locking up of sensitive equipment and electromagnetic interference.

Power quality problems can be difficult to manage because the source of the distortion is from devices used everyday. Instead of cutting off the cause, technicians utilize compensation networks to suppress power line distortion. To properly compensate the power line, it is important to determine the type, amount and distortion trends. The device used for analyzing power events in the electrical system is a power quality analyzer. This device captures, measures and logs power events for analysis. If you are planning on getting one for troubleshooting or preventive maintenance, you might want to check out these popular devices on the market today.

Dranetz PX5 Power Quality Analyzer

Integrates several advanced features for power event capturing, characterization and analysis. The PX5 has a high sampling rate and high speed capture capability. It also has a color graphical control interface that is easy to navigate and well lit. 

Product Specifications

  •        Can operate through batteries or the AC mains
  •        Can capture IEEE 1459 parameters for power systems that are advanced or non-sinusoidal
  •        THD and interharmonics capturing
  •        Remote communications through its built-in USB, RS232 and LAN ports
  •        Multi-language support: French, Finnish, Swedish, English, Spanish, Japanese, Korean, German and Italian
  •        Complies with the IEC 61000-4-15 standard for measuring power flicker
  •        Lightweight and compact design
  •        Suitable for AC and DC applications
  •        256 samples/cycle sampling rate
  •        1 microsecond data capture per channel
  •        Can characterize events like transients and RMS variations in detail
  •        Independent cross, current and voltage triggering
  •        4 voltage and 4 current channels

Amprobe DM III Power Quality Recorder

A full-featured 3-phase power quality recorder that has the capabilities required to accurately and effectively troubleshoot power quality issues. It has all the essential functions to capture, log and analyze power quality events. It can measure a broad spectrum of power quality parameters like THD up to the 49th harmonic, reactive, active and apparent energy and power, sags, peak demand, frequency power factor, AC current/voltage and surges.

Product Specifications

  •        Can be used with a wide range of current transducers
  •        Can be used on single and 3-phase electrical systems
  •        Built-in indicator for phase sequence
  •        Integrated scope for displaying waveforms
  •        Password protection system
  •        User selectable fundamental frequency of 50/60 Hertz
  •        Detects and automatically records surges, sags and other power quality events
  •        Integrated data compression system
  •        MegOhmmeter feature for testing insulation of cables, motors and transformers
  •        Variable output test voltage up to 1000 Volts
  •        Built-in timer that can be programmed
  •        Ohmmeter function for continuity and resistance measurement of motor or transformer windings
  •        Can simultaneously log 64 power quality parameters
  •        Automatic voltmeter function 

Fluke 434 3-Phase Analyzer

The 434 is a toll that can be used for finding wasted energy and waveform distortion in industrial and commercial installations. Electricians, technicians and engineers use the Fluke 434 Analyzer for load analysis, energy consumption analysis and conduct power quality logging as specified in the EN 50160 standard. It can virtually measure every power quality parameter such as frequency, current, harmonics, unbalance, energy consumption, power, voltage cos f and interharmonics.

Assessment of energy and load studies

  •        Analyze the reliability of the electrical system by capturing swells, load switching and voltage dips
  •        Conducting energy consumption test to demonstrate the benefits of improving the efficiency of the electrical system
  •        Measure the harmonics generated by electronic loads
  •        Monitor the max power demand in the electrical system over averaging periods that is user-defined

Product Specifications

  •        Accurately captures power events like interruptions, voltage changes, RMS values swells and dips
  •        Logger function that records min, avg and max readings up to 100 power parameters on all phases
  •        4-channel inputs grouped into 2
  •        Auto Scaling function allows easier power event trends analysis
  •        Data analysis tools like zoom function and cursors
  •        AutoTrend feature gives fast insights of power events
  •        System monitor featured lets you monitor the power system performance
  •        Complies with 600V CAT IV and CAT III 1000 Volts safety standards

Protec Equipment Resources can supply you with the power quality analyzers and electrical test equipment you need for troubleshooting or preventive maintenance. We offer several test equipment acquisition options to meet your budget. Rent, lease or buy equipment, it’s all up to you! Our distribution centers are located across the United States to ensure that we can deliver the equipment on time wherever you are. Our applications experts are ready to assist you. Do not hesitate to call them at 1-866-352-5550 for more details.