An air conditioner clutch will not engage without voltage. If it doesn't engage, the compressor will not turn.
When an alternating voltage is applied to a purely resistive circuit, the resulting current is in phase with the voltage.
They blow up.
To measure the voltage across an electric clutch, first ensure that the circuit is safely powered up. Use a digital multimeter set to the appropriate voltage range, and connect the positive lead to the terminal of the clutch and the negative lead to the ground or the other terminal. Make sure to take the measurement while the clutch is in operation to get an accurate reading of the voltage being applied. Always follow safety precautions when working with electrical components.
Any voltage that is fed into or "applied" to an electrical circuit is referred to as an "applied voltage".
cureent becomes high
Voltage is equal to the Current multiplied by the Resistance.Without changing the resistance, increasing the applied voltage in a circuit will increase current flow. There is a simple, direct relationship between voltage and current. Double the voltage, twice the current will flow. Triple the voltage, and the current will triple. As voltage (E) equals current (I) times resistance (R), when resistance is fixed, what happens to voltage will happen to current.
The voltage is greater than the applied voltage, why?
The electric PTO Clutch is Electromagnetic. There is a stator which creates a magnetic field when voltage is applied and this causes the free spun pulley to lock into place with the crankshaft of the engine. When voltage is release, spring pressure forces the pulley away from the stator. This is over simplified but that is about it.
As Ohm's law states; Current is directly proportional to the applied voltage and inversely proportional to the resistance of the circuit.
When a dc supply is connected to a resistor, current flows. The current in amps is equal to the supply voltage divided by the resistance in ohms. The power used is the voltage times the current, and that appears as heat in the resistor, which might become hot to touch.
punchthru, resulting in destruction of the FET
In a parallel circuit, the total resistance remains the same when the voltage applied is doubled. Each branch in the parallel circuit will experience the same increase in voltage, but their individual resistances will remain constant.