Our D85 discharge reactor is for discharging capacitor steps. When the capacitor is switched on, the reactor generates almost no losses due to the high inductive reactance. This is an advantage compared to the capacitor's discharge resistor, as this guides additional waste heat to the capacitor. The D85 reactor also has the advantage that the DC charge is reduced much faster than with a discharge resistor after the capacitor has been disconnected from the line (τ < 10 s). The D85 is not intended for use on thyristor systems because, due to the operating principle, DC voltage is applied to the capacitors in a switched-off state.
Reduced operating losses compared to a discharge resistor
Quick capacitor discharging
800 V rated voltage due to vacuum-impregnated winding