Also, circuit breakers utilize magnetism to function, not heat. Fuses on the other hand do use the heat produced by current to function. Anyway, awesome video series, thanks @ERAUSpecialVFR for sharing your work.

Thermo-Magnetic Circuit breakers, as you can tell by the name actually use both depending on the amount of excess current. The thermal part part of the breaker is activated during current overloads. An overload is anything more than the rating but less than the super high currents associated with a short circuit. Klixon breakers' data sheets for example shows that at 200% rated current, the breaker will take from 2-35 seconds to trip. The ambient heat will affect how soon it reacts on overloads as well. The other (magnetic activated) half of the breaker reacts to short circuits. The short circuit current will be in the range of 1000% or more of the rated current. That will be enough to pull apart the contacts and open the circuit within half a second. While there are magnetic only breakers that protect motors from short circuits, they rely on the overload heater in the motor starter for overloads. For most other applications, the thermo-magnetic breaker is what is used as a fuse alternative.

Yeah that moment was weird :) But this video by and large is very helpful in my opinion

I really needed that clarification.

It's a dad joke/wordplay :)

This will need further clarification someday when electric school buses become standard :)

Both can be short In some way.

Damn that is a huge mistake on their end.

'Excessive voltage or too much current same thing...no?

Correct, an alternator produces alternating current that is converted into DC (or Direct Current) usually through solid state components mounted on the rear of the alternator, usually referred to as a Rectifier. Therefore, it is also true for someone to say the alternator produces dc current for the system, though it is less specific, and and demonstrates a very simplified understanding of how the system works.

If the ammeter is showing neither a charge nor a discharge, then it's being charged at the same rate that it's being discharged. The alternator would still be working. If the ammeter was showing a discharge, then the alternator would not be working.

@@ERAUSpecialVFR There should only be either battery getting charged or discharged at one time right? can there be a possibility where battery is discharging its power at the same time is being charged by Alternator as well??? cos how can it happen that both battery charging relay closes and battery discharging relay closes as well??? either of them should close but not both at same time right?

Yep!

That's exactly what I thought! or could this be a mistake as well?