Using Voltage Regulation to find load capacitance (Transformer)

  • Thread starter Maccca
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Main Question or Discussion Point

Hi,
I did an experiment, involving transformers. Where we did open circuit and short circuit tests then test with a resistor, capacitor and inductor.

For the last question it asks Calculate the load capacitance and inductance from the voltage regulation readings.

Voltage regulation readings were: Capacitors -

Initial Voltage (Switch off) Final Voltage (Switch on) Voltage Regulation
110.2 V 110.5 V -0.271%

Inductors -

Initial Voltage (Switch off) Final Voltage (Switch on) Voltage Regulation
110.4 V 110.1 V 0.272 %


THREE LOADS
Capacitors -

Initial Voltage (Switch off) Final Voltage (Switch on) Voltage Regulation
110 V 110.9 -0.812 %

Inductors -

Initial Voltage (Switch off) Final Voltage (Switch on) Voltage Regulation
110 V 107.9 V 1.95 %

Help please I think i am missing something because I am not sure of the linking formulea.
 

Answers and Replies

  • #2
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From the open circuit and short circuit tests, you should have derived a Thevanin's Equivalent, then use the equivalent with the loads. I think that's what you are missing.
 

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