Device for loading accumulation resources

The device has an alternate current (AC) current engine connected to an external voltage network (11). An inverter (2) is connected to phases of the engine. A commutation unit (4) is integrated with the inverter, where the commutation unit authorizes supply of the engine, and authorizes a load of a power source unit (5) by the inverter. A resistor, inductor and capacitor (RLC) low-pass filter (18) is connected to a point medium (16) of the phase of the engine with a mass and an external voltage network.