Study the wiring diagram below and demonstrate knowledge to the lecturer of current flow and voltage drops of low speed medium 1 medium 2 and high speed positions

Study the wiring diagram below and demonstrate knowledge to the lecturer of current flow and voltage drops of low speed medium 1 medium 2 and high speed positions

Q1 Wiring diagram:

Study the wiring diagram below and demonstrate knowledge to the lecturer of current flow and voltage drops of low speed, medium 1, medium 2 and high speed positions. Also explain how the relay works. XMM1, XMM2 and XMM3 are multimeters measuring either current or voltage.

Q2 Calculations

Values: Voltage: 12V, Relay coil: 90 ohms, R1: 1 ohm, R2: 0.7 ohm, R3: 0.3 ohm, Motor power: 100W

Using the above wiring diagram and values, calculate the readings for the 4 different positions and then put them in the table below:

Q3 Theory

Demonstrate theory knowledge of the following components: 5 pin Relay, Starter solenoid, DC Motor

Topics to cover for each component:
Component symbols, how it works, how to wire it up to test it, and how to diagnose the faulty component. Remember to give plenty of tests and checks using a multimeter.

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