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How Much Power Is Enough When Selecting an AC Supply

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December 1, 2023 - Vista, California - Axiom Test Equipment, an electronic test equipment rental and sales company has published a new blog post that covers how to find the right AC Power Supply with enough output power for each component, device, and system during testing. While precisely controlled AC electricity may not be needed when testing DUTs powered by DC power, an AC supply can help simulate real-world operating conditions.

For certain DUTs, such as electric motors, a well-controlled AC power supply can mimic the conditions in which the DUT will operate, including power supply line fluctuations, peaks, and surges. AC power supplies can be compared by electrical capabilities, such as maximum root-mean-square (RMS) voltage, maximum RMS current, maximum frequency, and maximum power in volts-amperes (VA) at a given frequency. They can also be considered by physical attributes, such as the size and weight needed to fit an application.

This is a glimpse of several AC power supplies having sufficient output power for feeding a wide range of DUTs, including electric motors. Learn more about how these supplies combine generous power capabilities by reading the full blog post on Axiom's website: https://www.axiomtest.com/blog/How-Much-Power-Is-Enough-When-Selecting-an-AC-Supply/

California Instruments MX135-3PI AC DC Power Supply System, 135kVA, 3 Phase

How Much Power Is Enough When Selecting an AC Supply 

Operating active electronic devices as part of a measurement may require an AC power source. It should be stable and dependable, but it must also provide enough voltage and current to properly operate the device under test (DUT). An earlier blog, "Essentials of DC Power Supplies and Loads," examined DC power supplies. But AC power supplies may also be needed for testing, and understanding their use can ease the task of finding one for a measurement application.

While precisely controlled AC electricity may not be needed when testing DUTs powered by DC power, an AC supply can help simulate real-world operating conditions. For certain DUTs, such as electric motors, a well-controlled AC power supply can mimic the conditions in which the DUT will operate, including power supply line fluctuations, peaks, and surges. AC power lines transfer electricity around the world, albeit at different frequencies for different regions.

AC electrical networks transfer power typically as sinewaves at a fixed frequency for one region. Europe, Africa, and Asia operate AC electrical networks at 50 Hz while the United States runs AC at 60 Hz. Japan uses both 50 and 60 Hz, for various parts of the country. AC power supplies can be selected by several specifications, such as voltage, current, and frequency. A supply can provide current across a range of AC voltages, with maximum current at a high voltage determining the highest output-power level. Power can be supplied in single-phase or three-phase form to suit the needs of a DUT and test application.

AC power supplies can be compared by electrical capabilities, such as maximum root-mean-square (RMS) voltage, maximum RMS current, maximum frequency, and maximum power in volts-amperes (VA) at a given frequency. They can also be considered by physical attributes, such as the size and weight needed to fit an application. Electrical parameters can be further defined in terms of accuracy and stability as well as resolution or how precisely a parameter, such as voltage or frequency, can be adjusted. Voltage accuracy of better than 1% is not unusual while voltage resolution of 0.5 V or better enables fine tuning. Additional consistency parameters include how closely the AC line and load are regulated, with a value of 0.2% for either parameter signifying respectable regulation for an AC power supply.

 

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Whatever your project requires testing of, rent or buy quality test equipment from Axiom Test Equipment. For over 15 years Axiom Test Equipment has rented, sold, repaired and accepted trade-in of test equipment to support your test & measurement needs. If you would like help selecting any type of test equipment for your next project, contact Axiom Test Equipment's sales department at sales@transcat.com, call 760-806-6600, or browse Axiom Test Equipment's inventory online at www.axiomtest.com.

About Axiom Test Equipment

Get Exactly What You Need. Rent - Buy - Repair - Trade-In

Established in 2005, Axiom Test Equipment strives to continually improve itself and offer the best value for its customers. We offer our customers several practical, efficient and cost effective solutions for their business or projects' test equipment needs. Whether you need to rent & buy test equipment, repair test equipment, sell or trade equipment, we are committed to providing superior customer service and high quality electronic test equipment.

At Axiom Test Equipment we provide several services. We rent electronic test and measurement equipment. We also sell test equipment. If you have a piece of malfunctioning or broken test equipment we also have an in-house repair lab. For anyone seeking a way to offload their surplus or obsolete equipment, we offer a trade-in program or we can buy the equipment from you.

We stock a comprehensive inventory of equipment and can use our extensive network to find you those hard to get items. We believe in getting equipment to you quickly and at a competitive price.

Contacts

Fabian Garcia
Marketing Coordinator
Axiom Test Equipment
2610 Commerce Way 
Vista, CA  92081
Phone: (760) 806-6600

Web: www.axiomtest.com

E-Mail: fgarcia@transcat.com

Posted December 4, 2023