Voltages de and when operating at resistive load and inc ctive rms Repeat step (3) above, at (a =72°). Comment on your results.

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Experiment-3
Power Electronics Lab.
(Practical)
Single Phase Full Wave Controlled Rectifier
With Different Loads
To study principle operation of a single phase half wave controlled rectifier
with different loads.
Load
The Procedures
Fig. (1)
1 - Connect the circuit fig. (1) (with pure resistive load).
2- Change the value of the firing angle (a) from (0 to 180 ° step 18°) and then
determine the DC value (Vde) and RMS value and (Vms) of the load voltage (by
using the AVO meter).
3- At (a =36°) and (a =72°), draw to scale the load voltage using an oscilloscope.
3- Connect an inductive with a suitable value in series with the resistive load and then
repeat the steps (2) and (3) above.
The Report
1- State some advantages and applications of the experiment.
2- For the same circuit shown in fig (1), determine the DC and RMS values of the
load voltage at (a =36') and (a =72") (theoretically).
3- For the same circuit shown in fig. (1) at (a =36°), compare between the load
voltages (Vdc and Vms) when operating at (resistive load and inductive load).
4 Repeat step (3) above, at (a =72°).
5-) Comment on your results.
Transcribed Image Text:Experiment-3 Power Electronics Lab. (Practical) Single Phase Full Wave Controlled Rectifier With Different Loads To study principle operation of a single phase half wave controlled rectifier with different loads. Load The Procedures Fig. (1) 1 - Connect the circuit fig. (1) (with pure resistive load). 2- Change the value of the firing angle (a) from (0 to 180 ° step 18°) and then determine the DC value (Vde) and RMS value and (Vms) of the load voltage (by using the AVO meter). 3- At (a =36°) and (a =72°), draw to scale the load voltage using an oscilloscope. 3- Connect an inductive with a suitable value in series with the resistive load and then repeat the steps (2) and (3) above. The Report 1- State some advantages and applications of the experiment. 2- For the same circuit shown in fig (1), determine the DC and RMS values of the load voltage at (a =36') and (a =72") (theoretically). 3- For the same circuit shown in fig. (1) at (a =36°), compare between the load voltages (Vdc and Vms) when operating at (resistive load and inductive load). 4 Repeat step (3) above, at (a =72°). 5-) Comment on your results.
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