Patent ID: 7046491

Claim:
Device for protecting an electrical source for powering at least one electrical component ( 4 ), wherein the device comprises a test unit ( 6 ) that delivers a signal ( 8 ) representative of a level of availability of the electrical source ( 2 ) to a control unit ( 10 ), the control unit ( 10 ) determining an operating mode of the electrical component ( 4 ) in which the consumption of electrical energy of the electrical component depends on the availability signal ( 8 ) received from the test unit ( 6 ), and an inverter ( 6 ) connected to the electrical source ( 2 ), wherein the electrical component is a motor, and the control unit ( 10 ) is interposed between the electrical source ( 2 ) and the electrical component ( 4 ), and in that the control unit ( 10 ) modifies the frequency of an electric current which supplies the electrical component ( 4 ) to limit the quantity of energy supplied to the electrical component by the electrical source ( 2 ).