DESIGN SIMULATION AND DEVELOPMENT OF ELECTRONIC TAP CHANGER DESIGN AND ANALYSIS
Keywords:
Thyristor module, H-Bridge, Tap changing switches, TransformerAbstract
By implementation of our project, we can change different voltage taping in any power transformer as required
without any production of arcs by using thyristor modules. The design employs a low-voltage high-current switch-mode
amplifier to divert current out of the mechanical contacts and into a pair of anti-parallel thyristors.The controlled source is
switch mode in nature, employing four low-voltage, high-current devices in an H-bridge configuration. Thyristor module and
control source are used for tap changing and with the help of the control source we can divert the load current to solve the
problem of arcing at switching period. Control source acts as current and voltage source as per requirement. The inductor is
included so that current-source behavior may be produced through suitable closed -loop control of the H-bridge duty cycle
when one of the two switches (or) is closed and are present to define the voltage when both switches are open. Thus the
operating device can be termed as Active Shunt Diverter.
