Automotive Dictionary: Battery Coil Ignition

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Automotive Dictionary: Battery Coil Ignition


Throughout this site we use many technical terms, and given the breadth of readership our site enjoys, sometimes we are remiss and incorrectly assume everyone knows what we are referring to. For those that do not, here are some explanations of the technical terms use.
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Battery Coil Ignition


Generally-used means of ignition in motor vehicles in which the 12-volt output from the battery is transformed into approximately 30,000 volts to energize the ignition system. The coil is, in effect, a direct-current transformer operated by the make-and-break effect of the contact-breaker points in the distributor. The 12-volt supply flowing in the primary winding of the coil is interrupted by the opening of the points, which excites a flow of electricity at approximately 30,000 volts in the secondary winding.
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