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Test the performance of given UPS
Study on SMPS
 Determine the firing angle using DIAC and TRIAC phase-controlled circuit on output power under different loads such as lamp, motor or heater
Use CRO to observe theoutputwaveformof Fullwave-controlledrectifierwithRload,RL load,freewheeling diode and determine the load voltage.
Use CRO to observe the output waveform of half wave-controlled rectifier with resistive load and determine the load voltage
Perform the operation of Class –D, E, F turn off circuits
Perform the operation of Class – A, B, C turn off circuits.
Testthe effect of variation of R, C in UJT triggering technique.
Testthe variation of R, C in R and RC triggering circuits on firing angle of SCR.
Determine the latching current and holding current using V-I characteristics of SCR
Testthe proper functioning of DIAC to determine the break over voltage.
Test the proper functioning of power electronic switches – SCR, IGBT, SCS and TRIAC
Students should conduct following activities (any two)
Activity: A.C Distribution System adjacent to your institute
Study of distribution simulator using power transmission trainer.
Demonstrate the improvement of p.f. using static condenser.
Demonstrate various system faults by D.C. network analyzer.
Study samples of Overhead Conductors, Underground Cables, Line supports and Line Insulators
Dismantling and reassembling of single phase motors used for ceiling fans, universal motor for mixer.
Conduct the test on load or no load to plot the ‘V’ curves and inverted ‘V’ curves (at no-load) of 3-phase synchronous motor
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