DEVICE FOR PROTECTION OF SELF-EXCITATION GENERATOR PHASE-ADVANCE LOAD Russian patent published in 2012 - IPC H02H7/06 H02P9/14 H02P9/30 

FIELD: electricity.

SUBSTANCE: in the self-excitation generator 1 containing an automatic voltage regulator 10 the phase-advance protection device contains: magnetisation current control shaper 21 (serially connected to the magnetised winding 6 and switched over to the open and closed position with control circuit 23 ARN 10 for supply of magnetisation current to the magnetised winding 6), a shaper of rotor short-circuit for phase-advance load 22 protection (connected in parallel to the magnetised winding and supplying short circuit current to the magnetised winding 6 when switched over to the open position) and a compensatory feedback circuit 30 connected as the power supply source of the magnetisation current control shaper and the shaper of rotor short-circuit for phase-advance load protection; the compensatory feedback circuit 30 contains a capacitor 32 where charge is accumulated while the magnetisation current control shaper 21 is in the open position.

EFFECT: building a device for phase-advance load protection using inexpensive elements.

4 cl, 7 dwg