baobab72
7th Dec 2011, 13:51
hi folks
a couple of questions about the magnetos for the wisest of you:
The rotating magnet or rotor is designed to induce the current in the primary windings. The magnitude of the induced current depends amongst other factors, upon the strength of the magnetic field and thus on the strength of the magnet measured is gauss, and upon the polarity of the magnet: as matter of fact as the rotor spins around and as its polarity rotates, the current induced in the primary windings changes.
first question? how does it change? why? and why is it bad?
as the rate of change reaches its peak, the breaker point opens stopping the flow of current to the primary windings, causing the electromagnetic field to collapse RETURNING THE ENERGY TO THE CIRCUIT.
second question: What does that mean? to which circuit?
The position of the rotor where the breaker point opens is referred to as the E-gap setting. An improper E-gap setting will result in less energy produced by the magneto. Both the E-gap and the strength of the magneto can be reset during maintenance.
third question: when we talk about grounding a magneto, are we talking about turning it off or on, cos in the Challenger, many times when we say "provide a ground to an item" we mean that we actually ativate it.
How is the rotor spun in first place?
more questions to come cos i have taken a pledge to finally figure out how a magneto works!!!
baobab72
a couple of questions about the magnetos for the wisest of you:
The rotating magnet or rotor is designed to induce the current in the primary windings. The magnitude of the induced current depends amongst other factors, upon the strength of the magnetic field and thus on the strength of the magnet measured is gauss, and upon the polarity of the magnet: as matter of fact as the rotor spins around and as its polarity rotates, the current induced in the primary windings changes.
first question? how does it change? why? and why is it bad?
as the rate of change reaches its peak, the breaker point opens stopping the flow of current to the primary windings, causing the electromagnetic field to collapse RETURNING THE ENERGY TO THE CIRCUIT.
second question: What does that mean? to which circuit?
The position of the rotor where the breaker point opens is referred to as the E-gap setting. An improper E-gap setting will result in less energy produced by the magneto. Both the E-gap and the strength of the magneto can be reset during maintenance.
third question: when we talk about grounding a magneto, are we talking about turning it off or on, cos in the Challenger, many times when we say "provide a ground to an item" we mean that we actually ativate it.
How is the rotor spun in first place?
more questions to come cos i have taken a pledge to finally figure out how a magneto works!!!
baobab72