SALIENT FEATURES:
? Completely self – contained stand – alone unit.
? Demonstrates the principle and working of 3 ? Half Wave Controlled Rectifier using SCR.
? Trigger circuit separate for each phase.
? Trigger circuit using Ramp Comparator Scheme.
? Step down 3 ? AC supply 110V star connected is provided so that phase control can be observed on lamp.
? Resistive ( lamp ) and RL load is provided.
? Firing angle can be controlled from about 300 to 1700.
? Firing angle potentiometer is provided.
? 3 ? Bridge consisting of 3 SCR?s and 3 diodes.
? Supply required 3 ? 440V, 50Hz AC.
? Panel Size : 410mm x 320 mm
? Test points at various stages in the circuit, to observe the voltages and waveforms.
? Set of patch cords provided.
? Housed in an elegant cabinet with a well spread intelligently designed circuit layout on the front panel.
? Strongly supported by a comprehensive manual complete with theory and operating details.
? Experiments:
1. To study the nature and generation of Control Signal for 3 ? Halfwave Controlled Rectifier.
2. To study the operation of a 3 ? Halfwave Controlled Bridge Rectifier with R Load.
3. To study the operation of a 3 ? Halfwave Controlled Bridge Rectifier with R – L Load.
4. To study the effect of Free Wheeling Diode on the output waveform.
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