Project - Analysis of a practical automotive wiring circuit

1.Ammeter, Battery, Current and voltage regulator, Generator,Distributor,Breaker,Starter, Switches,Earth 

 2.Battery : It is energy storage device used to supply stored electric energy for the function of Starter.

   Current and voltage regulator: It is used to maintain fixed output voltage and current for the proper performance and safety of the device

  Breaker: It is a electrical switch it function to interrupt current flows after it detects a fault.

3.Fuse rating of 10A load from battery would be nearly 150% of load so fuse current would be from 12.5 Amps to 13amps.

4. Battery capacity for 500W battery is 500Wh

   Battery capacity= Ah× V.                                          500= Ah × 12

    Ah = 41.66 Ah.             

5. Battery and horn switch because they are not carrying single node.Battery is connected parallel with horn switch is voltage across each electrical device is same and device can take current as per resistance separate on / off switch is applied in battery and horn switch.

  6.Horn switches are connected in series they must be all closed to complete the circuit.