The discussion revolves around understanding the phase angle between voltage and current in an AC circuit with resistive, capacitive, and inductive loads. Participants explore how varying these loads affects voltage and current readings, with a focus on experimental observations and theoretical implications.
Participants express various viewpoints on the behavior of voltage and current in relation to phase angle and load changes, with no consensus reached on the implications of their observations or the theoretical underpinnings.
Participants discuss the effects of load changes on voltage and current without resolving the underlying assumptions about circuit behavior, the nature of the AC generator, or the specifics of phase angle measurement.
Could you elaborate?Elliot_Bennett said:How can taking voltage and current readings from an AC supplied CCT with either a resistive, capacitive or inductive load (gradually increasing the load for each) show the difference in phase angle between voltage and current for each component? Many thaks for any help.
I recently did an experiment whereby an AC generator supplied a capacitive, resistive or inductive load, for each readings of voltage and current were taken from the AC Generator showing how it reacted to various levels of RLC load. On a capacitive load as the load value was increased the current and voltage both increased, on an Inductive load as the load was increased the voltage rose and current fell and on a Resistive load as the load was increased voltage rose and current dropped (but showed less change than a purely inductive load).cnh1995 said:Welcome to PF!
Could you elaborate?
So did you use a series RLC circuit and changed the componemt values one at a time or did you use purely resistive and purely reactive circuits?Elliot_Bennett said:I recently did an experiment whereby an AC generator supplied a capacitive, resistive or inductive load, for each readings of voltage and current were taken from the AC Generator showing how it reacted to various levels of RLC load.
What do you mean by 'load' here? Did you increase the capacitance?Elliot_Bennett said:On a capacitive load as the load value was increased the current and voltage both increased, on an Inductive load as the load was increased
No we did not use a series RLC circuit. Purely resistive, purely capacitive and purely inductive circuits with only the relevant component in each circuit, for each the value of the inductor, capacitor or resistor was increased. I.E for resistive from 50-450 ohms at 50 ohm intervals.cnh1995 said:So did you use a series RLC circuit and changed the componemt values one at a time or did you use purely resistive and purely reactive circuits?
What do you mean by 'load' here? Did you increase the capacitance?
To understand what's going on you need to lock the excitation,, ie switch the voltage regulator from "Auto" to "Manual". Otherwise you're just testing the voltage regulator.Elliot_Bennett said:AC generator supplied a capacitive, resistive or inductive load, for each readings of voltage and current were taken from the AC Generator showing how it reacted to various levels of RLC load