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Challenges in Electric Power Measurement
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Challenges in Electric Power Measurement
 
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Challenges in Electric Power Measurement
From Duncan Instruments Canada, Ltd.
 

 

The days of unlimited energy use belong to the past. Manufacturers of electric apparatus and machines are forced to optimize energy consumption of their products. One of the means to achieve this is to increase the efficiency. Solutions for better efficiency use power electronics, which produces obscure waveforms. To obtain precise power measurement a Power Analyzer must fulfill specific requirements.

Power measurement today is not only used for energy measurement on the 50/60Hz power line. It more and more becomes a means to improve the product to assure its quality, to reduce its energy consumption, and to achieve marketing advantage. Precise power measurement is not as simple as one might think. The user is well advised to understand the fundamentals of analog signal conditioning. Simple measurements of power on the 50/60Hz power line may be up to 20 % in error if the Power Analyzer is unable to pass DC components of current and voltage. For example a one way rectified current and a sinusoidal voltage requires a DC coupled current path in spite the fact that power is transmitted at the line frequency.


Products & Services
Power meters and wattmeters are used for high-accuracy measurements of power over a wide-frequency bandwidth, and from both AC and DC circuits.
DC-DC converter chips provide a regulated DC voltage output from a different, unregulated input voltage. 
Electrical power generators transform mechanical energy into electrical energy, typically for backup or emergency power. Generators can produce either AC or DC power and are typically powered by a fuel engine.
Energy product testing services test, evaluate, and analyze the safety, efficiency and performance of energy storage, power generation, and transmission systems that use conventional, renewable or alternative energy.
DC power supplies accept an input power and output the desired form of DC power. Common types of DC power supplies include linear power supplies, switching power supplies, DC-DC converters, and silicon controlled rectifier (SCR) type power supplies.
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Product Announcements
Sensicast Systems, Inc. - SensiNet®: Green Solutions
"SensiNet®: Green Solutions" Deliver Innovations for Sustainable Enterprises Through Enhanced Energy Monitoring and Efficiency... (read more)
Ohio Semitronics, Inc. - The Model PC20 Transducer
Ohio Semitronics Inc.'s Model PC20 transducer provides three separate outputs proportional to true power, VAva, and power factor in single- or polyphase power systems. (read more)
Technipower LLC - AC Front End
AC Front End is an extremely cost effective means of providing clean, regulated, rectified DC voltage independent of the quality of the three phase input power. It can be a stand-alone component for... (read more)
TES Electrical Electronic Corp. - 6830 Power and Harmonics Quality Analyzer
The Most Powerful Power and Harmonics Analyzer with 3 selectable probes. It is able to do almost all the analysis for 3 phases power system. (read more)
Vitrek Corporation - XiTRON Advanced Power Analyzers Models 2801 & 2802
The XiTRON 2801 and 2802 combine an unprecedented feature set with an ideal combination of precision, speed and ease-of-use in an instrument so economical it can be on every bench. With an extended... (read more)
XP Power - AEL Series 15-80 Watt Desktop AC/DC Power Supply
XP Power announces the AEL series of energy efficient, compact, external AC/DC power supplies designed for low and medium power applications. The series includes 15, 20, 40, 60 and 80 Watt models, all... (read more)
Taylor Dynamometer, Inc. - Electric Motor Testing Systems
The Taylor Dynamometer Electric Motor Testing Systems are designed to provide maximum reliability, excellent durability and flawless performance. (read more)
Megger - INSULATION TESTERS
Megger introduces the new family of 5 and 10 kV insulation testers comprised of three analog/digital models. (read more)
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Topics of Interest
PERFORMANCE Ac induction motors are designed to produce their rated power at a certain speed at a specific line voltage, line frequency, and ambient temperature. These motors will also operate at a... (Read More)
A continuing challenge for electric motor manufacturers and motor users is delivering more shaft power while using less input power, which simply put means increasing the motor’s efficiency. Motor... (Read More)
The DC/AC inverter topologies usually used in electronic ballasts are the push-pull for 120-V AC line input and the half-bridge for 220-V line input. Unlike switching power supplies which use... (Read More)
The two most common types of electric motors are alternating current (ac) inductionand direct current (dc) commutated shunt- or series-wound.All electric motor configurations except one type... (Read More)
A rectified voltage (or current) is a voltage with a DC value not equal to zero and without any change in polarity.  A pure sine wave has a DC (or average) value of zero because the signal... (Read More)
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Technical Articles
Challenges in Electric Power Measurement - Test and Measurement
Star Search: Electric Actuators Play a Starring Role in Helping the Largest, Fully Steerable Radiotelescope See More of the Universe - Linear and Rotary Motion Components
Electric Clutch Used on Gas Engine for Sawmill - Clutches and Brakes
Harnessing the Power of Maintenance - Power Generation and Storage
Glossary - Sensors, Transducers and Detectors
Virtual Monster: Strap Yourself in the Cab on this Monster Truck and You - Linear and Rotary Motion Components
Emissions Testing: New Products Derived From Technologies In Very Different Markets - Flow Sensing
Designing Out of the Box - Product and Material Testing
Screw Jacks are the Ticket for Parking - Mechanical Fasteners and Hardware
Vision in Hostile Environments - Machine Vision Equipment
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See more product announcements for Power Meters and Wattmeters
Power Meters ML2437A & ML2438A

Power Meters ML2437A & ML2438A
Anritsu Company


Power Display Meter (PDM)

Power Display Meter (PDM)
Ohio Semitronics, Inc.


ML2530A Calibration Receiver

ML2530A Calibration Receiver
Anritsu Company


11 See more product announcements for Power Meters and Wattmeters



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