Simulations and tests with impulse current generator

The impulse current generator commonly used in high-voltage laboratories consists basically of a RLC (resistor, inductor and capacitor) circuit connected in series. In this type of circuit, the impulse current waveform depends of the RLC equivalent values. As the test object is part of the circuit, the waveform of the impulse current depends strongly of electrical characteristics of the object under test. Thus, when dimensioning the impulse current generator circuit elements, the test object should be considered. This work has the purpose to show a way of modeling an impulse current generator in electromagnetic transient simulation programs, considering the characteristics of the generator and test object. Simulations are performed in ATP software (Alternative Transients Program), with…