Switching-on energy consumption resistor unit of ultrahigh-voltage circuit breaker

The utility model belongs to the field of high-voltage circuit breakers, and discloses a closing energy-consuming resistor unit of an ultra-high-voltage circuit breaker, which is characterized in that energy-consuming resistor discs are propped against each other by arranging a resistor propping gasket inside, so that poor local contact among the energy-consuming resistor discs caused by uneven stress is avoided, and the closing energy-consuming resistor unit of the ultra-high-voltage circuit breaker comprises an energy-consuming and resistor string straight insulating shell, the energy-consuming resistor string is formed by sequentially adjoining a plurality of energy-consuming resistor discs along a straight line, the straight-tube insulating shell is used for accommodating the energy-consuming resistor string, a resistor jacking gasket is arranged in the straight-tube insulating shell, and the straight-tube insulating shell and the resistor jacking gasket jack two ends of the energy-consuming resistor stri