Electrical Transients

 

Electrical Transients are abnormal and/or incorrect electrical patterns including:

  1. High Voltage
  2. Low Voltage
  3. High Current
  4. Low Current
  5. Abnormal and Incorrect Sine Wave Patterns

Transient Electrical Event Sources:

  1. Lightning Strikes - Inductive Coupling and Direct Contact
  2. Heavy Load Switching
  3. Unbalanced Electrical System
  4. Faulty Equipment In The System
  5. Faulty Power Vendor Equipment
  6. Transient (momentary or unusual) damage to the power grid or local system caused by automobile accidents, storms and high winds, power line failures, transformer failures, generation plant problems, and more.
  7. Sudden interruption of power.
  8. Power restoration after a power outage.

 Read The Following To Learn More About Each Cause

Lightning Strikes

Lightning damage occurs by two primary means, direct contact and inductive coupling.

Direct Contact - Lightning makes direct contact with conductors including: power lines, grounding systems, telephone and cable TV lines, and any metal objects which are part of the grounding system.  The lightning injects energy into the system causing a fast rise in voltage and current, and also changing the normal sine wave pattern of the alternating current (AC) system.

Inductive Coupling - When lightning strikes the ground, buildings, trees, or surface waters, high current flow into the earth creates large magnetic fields (magnetic fields are always created when electrons move in a conductor).  Once the lightning strike ends, the magnetic fields do not disappear, but rather, the magnetic fields collapse inward and produce high voltage transients on any conductors in the area.

 

 

 

 

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