Project - Analysis of a practical automotive wiring circuit
1)
starter, battery, fuse, breaker, ignition coil, generator, current and voltage regulatour
2)
battery: it is the power source.it is the combination of cells in series and parallel, it have a positive(anode) and negeative(chatode) terminals, by connecting a load to the battey electrical energy flow negetive to positive though the load. abattery have power, votage and current rating
fuse: it is protective device to protect a adevice from unregulated current. when the flowing current increses abow the rated current of the fuse then the fuse will get melt. so the circute get open and stop the suppaly to the circute.the metal wire in the fuse need to repalce for the closing the circut
breaker: it also is protective device to protect a adevice from unregulated current. when the flowing current increses abow the rated current of the breaker, then its internal switch get open. after the problem soved the brecker closed by switch
3)
load = 10A
the fuse must be 1.2 to 1.5 times rated thann the load
so for 1.5*10= 15A
so we take 15A fuse for this load
4)
500W is the load
let say for 1 hour and voltage = 12v
500wh = power
power = V*I
I = power/V = 500/12 = 41.66 SO we can take a 42Ah battery (if there is no losses then we can use 42Ah battery)
we can recomment battery abow 42Ah and a 12V
5)
parallel connections
1- parking lamp - becourse it need to work individually. if it connected in series one lamp get distroied it cource to open the circut and the other bulb can't work so it connected in series
2- tail stop - inparallel connectio they can work individually, if one connection get opened due to any reason then the other connection not interpted
series connection
1. fuse - fuse in any connection use only series it becuse it need to stop the entire connectio. if it get connected in parallel then there is no use of the fuse becouse if the fuse get open then there still a closed circut to the system
2. breaker - it also connected in series for protecting the system by tripping the switch. we need to keep a single connection to circut though the breaker then only it can act its purpose