Purpose of the test // The purpose of the impulse voltage test is to secure that the transformer insultations withstand the lightning overvoltages which may occur in service. Testing equipment Impulse generator Where: C1 – Impulse capacitor Rc – Charging resistor Rs – Series resistor Ra – Low-ohmic discharging resistor for switching impulse, Rb – High-ohmic discharging […] Read more
[post-views]Procedure for Transformer Lightning Impulse Test
Purpose of the test // The purpose of the impulse voltage test is to secure that the transformer insultations withstand the lightning overvoltages which may occur in service. Testing equipment Impulse generator Where: C1 – Impulse capacitor Rc – Charging resistor Rs – Series resistor Ra – Low-ohmic discharging resistor for switching impulse, Rb – High-ohmic discharging […]