| Summary: | Nowdays, most of electric loads character in industry is inductive which
definetly has low power factor and caused inductive reactance raises. This
inductive reactance need to be compansated using apropriate equipments. One of
them is the Magnetic Energy Recovery Switch (MERS) which to set capacitor
charging and discharging time by controlling firing angle shift of mosfet gate in
MERS circuit. MERS is installed between voltage source and single phase
induction motor as the load so it controls voltage to the load. As an equipment that
gives correction to power factor, MERS also effect terminal voltage on induction
motor that lead to changes in rotation speed of motor. Capacitor reactance is high
when capacitance is low, and MERS reactance is small when firing angle of
mosfet gate is big. When the capacitor reactance is bigger than MERS reactance
then capacitor voltage has discontinue waveform, when they are equal then its
waveform is balance, and when capacitor reactance is smaller than MERS
reactance then its waveform is dc-offset. This study results that MERS is able to
correct power factor up to 0.898 with load voltage 244.6 volts using C = 2.2 µF at
firing angle of 1600 and lead to changes of voltage terminal of inductive load.
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