What is the Spark From an Oil Burner Igniter Coil?

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SUMMARY

The discussion centers on the operation of an oil burner igniter coil, specifically the mechanism behind the high-voltage spark generated by a step-up transformer. When the igniter coil steps up the voltage from 110 volts to 10,000 volts, the resulting spark is attributed to the high voltage overcoming the air gap's resistance, allowing electrons to jump across. Despite the high voltage, the current remains low due to the air's high resistance, which prevents a significant flow of electrons, thus not registering as high current.

PREREQUISITES
  • Understanding of electrical transformers, specifically step-up transformers.
  • Knowledge of high-voltage electrical principles.
  • Familiarity with concepts of resistance and current flow in electrical circuits.
  • Basic comprehension of electron behavior in conductive and non-conductive materials.
NEXT STEPS
  • Research the principles of step-up transformers and their applications in ignition systems.
  • Study the relationship between voltage, current, and resistance as described by Ohm's Law.
  • Explore the physics of electrical discharges and spark generation in air gaps.
  • Investigate safety measures and best practices when working with high-voltage electrical systems.
USEFUL FOR

Electrical engineers, technicians working with ignition systems, and anyone interested in high-voltage electrical phenomena will benefit from this discussion.

Rockplourde
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When I take a step-up transformer say from the igniter coil from an oil burner and step up the voltage from 110 volts to 10,000 volts with just a very small fraction of an amp in the secondary why is it I get a huge spark. Is the spark not a large collection of electrons jumping the gap because of the high voltage applied to them? And if so that many electrons flowing across the gap should register as a high current at that space in time, yet it does not. If this is not electron flow, what is it?
 
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Rockplourde said:
And if so that many electrons flowing across the gap should register as a high current
Except for the air in the gap is high resistance...
 
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