Selecting the Right Size AC Power Supply for a Large Solenoid Experiment

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SUMMARY

This discussion focuses on selecting the appropriate AC power supply for a large solenoid experiment requiring approximately 20 amps. The user is uncertain whether to base their choice on kVA or kW ratings, and whether to consider peak values of the sinusoidal waveform. Key factors include the solenoid's inductance, resistance, and the operating frequency of the experiment. The conversation emphasizes the importance of understanding power supply specifications to ensure adequate performance for the solenoid's magnetic field generation.

PREREQUISITES
  • Understanding of solenoid inductance and resistance
  • Knowledge of AC power supply ratings (kVA and kW)
  • Familiarity with sinusoidal waveforms and their peak values
  • Basic principles of magnetic field generation
NEXT STEPS
  • Research how to calculate the required kVA for inductive loads
  • Learn about the impact of frequency on power supply selection
  • Investigate different types of AC power supplies suitable for solenoid applications
  • Explore simulation tools for modeling solenoid performance under various power conditions
USEFUL FOR

Electrical engineers, experimental physicists, and anyone involved in designing or conducting experiments with large solenoids and AC power supplies.

pokee
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I plan on using a very large solenoid for a magnetic field experiment. I have estimated what I believe to be the inductance and resistance of the solenoid and, with the desired field to be produced, almost 20 amps will be required.

After running a simple simulation, I am not sure how to select the right size of an AC power source. Vendors have them rated by kVA or kW. But do I need to choose one based on the peak value of the sinusoidal waveform or some other measure?
 
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pokee said:
I plan on using a very large solenoid for a magnetic field experiment. I have estimated what I believe to be the inductance and resistance of the solenoid and, with the desired field to be produced, almost 20 amps will be required.

After running a simple simulation, I am not sure how to select the right size of an AC power source. Vendors have them rated by kVA or kW. But do I need to choose one based on the peak value of the sinusoidal waveform or some other measure?

Welcome to the PF.

What frequency will you be using in this experiment? Can you post links to some typical power supplies that you are considering?
 

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