Skip to content
POWER100
Join Free
Content

Why Grounding Is the Foundation for Equipment Power Quality

⏱️ 19:59 🎤 Ellen Parson, Philip Keebler
AUDIO EPISODE
Why Grounding Is the Foundation for Equipment Power Quality
0:00
0:00

Chapters

Click to jump to section

  • 0:00
    Sponsor Introduction
    The episode begins with a special thank you to IEM, the sponsor, highlighting their custom electrical equipment manufacturing capabilities.
  • 0:46
    Grounding as Foundation
    Host Ellen Parson introduces the topic of grounding as the fundamental basis for equipment power quality, setting the stage for the discussion.
  • 4:09
    Why Grounding Matters
    Philip Kibler explains that grounding provides a stable return path for electrical current, preventing instability and ensuring system safety and performance.
  • 8:48
    Common Grounding Mistakes
    Kibler discusses frequent grounding errors, emphasizing the importance of proper grounding electrode conductors and electrodes using a volleyball net analogy.
  • 21:29
    Grounding and Harmonics
    The discussion moves to how grounding interacts with harmonics and transient voltages, and strategies engineers use to mitigate their effects.
  • 29:01
    Ground Loops Explained
    Kibler details how ground loops contribute to power quality problems, especially for sensitive electronic equipment, and the importance of star grounding.
  • 35:13
    Grounding System Testing
    Best practices for verifying and testing grounding systems during commissioning and troubleshooting are outlined, including annual performance checks and baseline recording.
  • 43:55
    Concluding Remarks
    Ellen Parson thanks Philip Kibler and encourages listeners to subscribe and stay updated with EC&M On Air.

Speakers

E
Ellen Parson
Host — editor and chief of ECM
P
Philip Keebler
technical advisor with PBE Engineers

Key Takeaways

✦

Ensure electrical current has a stable, low-resistance path back to the source; treat the ground as a 'backup neutral' to prevent current from seeking unintended paths.

✦

Implement proper grounding electrode conductors and electrodes diligently; a robust grounding system is like a tightly-strung volleyball net, preventing voltage instability during faults or surges.

✦

Avoid common grounding mistakes, particularly in older systems; always adhere to safety codes which prioritize fire and shock prevention, even with modern electronic loads.

✦

Mitigate the impact of harmonics and transients by ensuring your grounding system can effectively absorb and dissipate excess energy, protecting sensitive equipment.

✦

Prevent ground loops by establishing a 'star grounding' system, routing all grounds back to a central equipment ground bar, especially in facilities with control and network cables to avoid signal corruption.

✦

Regularly verify and test your grounding system; commissioning should include real measurements, and annual checks of impedance and ground current are crucial to identify potential issues before they cause failures.

Want the full experience?

Join Power100 for full access to every episode, AI-powered insights, personalized coaching, and a network of industry leaders.

Join Power100 →