REDUCTION OF INRUSH CURRENT IN TRANSFORMER BY USING CONTROL SWITCHING AND POWER ELECTRONIC CONVERTER
Keywords:
Inrush Current Theory, Control Switching Method, Different Angle Scope output, Use of series connected voltage-source PWM converter, Comparison of TechniqueAbstract
Transformer is one of the most vital and costlier equipment in power system.When the transformer is
energized from a standard power source it draws a very high transient current which is called the inrush current. This
magnetizing inrush current causes system disturbances and damages the transformer windings. To improve this
situation inrush current is required to be reduced. This paper discusses inrush current limiters that reduce inrush
current at the time of switching of the transformer. Here, inrush current limiters using control switching and power
electronic converter- voltage source PWM converter are used. Simulations using MATLAB are carried out and results
are tabulated.