Project - Analysis of a practical automotive wiring circuit
Ans.1. Major elements in above automotive diagram
- Battery
- Starter
- Ignition coil
- Distributor
- Breaker
- Current & Voltage regulator
- Foot selector switch
- Juction block
- Ignition Switch
- Parking lamp
- Scaled beam
- Horn
- Fuse
- Tail Stop
- Plate light
Ans.2. Working of elements
Battery:-
- Purpose - To store & supply electric energy to differnent components of a vehicle. It supply electricity to electronic components of vehicle such as lights, music player,etc.
- Working - It converts chemical energy to electric energy.
Fuse :-
- Purpose - To prevent overloading of current & in a circuit
- Working - When a current in a circuit reaches beyond it limit, the fuse break & makes the circuit open & flow of current stops.
Current & Voltage Regulator:-
- Purpose - It maintains a constant current & voltage flow despite of voltage fluctuations in a circuit
- Working - It keeps the voltage from a power supply within a range that is compatible with the electrical components in a vehicle.
Ans.3. I = 10A
Fuse Rating should be 25 % higher than th maximum load of a battery
- Fuse Rating = I + (I x 0.25)
= 10 + 2
- Fuse Rating = 12 A
Ans.4. P = 500W
Lets assume battery voltage of 24 V
I = P/V
= 500/24
=20.83 A
A fully charged vehicle battery must last atleast upto 8 hrs
Therefore,
- Ah = I x t
- 20.83 x 8
- Ah = 166.66 Ah
- No battery is 100% effecient
- So I recommened battery of min 170Ah in above condition
Ans.5. Elements connected in parallel are
- Horn - Parallel connection of horn helps in maintaining sound frequency of horn
- Lights - Parallel connection of lights in automobile are done to ensure one light always remains on while driving if other gets damaged.
Ans.6. Battery & Ammeter are connected in series.
Ammeter is a low resistive device.If we connect it in parallel it may get damaged and stop working