FIELD: electricity.
SUBSTANCE: invention refers to the sphere of electrical engineering and is to be utilised for control over parallel operation of, for example, shipboard generators with quasistatic external characteristic. The invention concept consists in the device being designed as additionally equipped with a shared bus and circuit-opening block contacts of line contactors with the extreme generator selection unit equipped with two resistors, a reference-voltage source, amplifier substractors, decoupling diodes and circuit-opening block contacts (numbering as many as the generators), as well as signal conditioners and isolation diodes (numbering twice as many as the generators). The resistors are connected via the shared bus to the negative outputs of the reactive load sensors with the other resistor ends connected to the cathodes of respectively the first and the second trios of isolation diodes whose anodes are accordingly connected via the signal conditioners to the positive outputs of the reactive load sensors (first trio) and the amplifier substractor outputs (second trio). The amplifier substractor inputs are bridged with the circuit-opening block contacts of line contactors with the inverting input additionally reversely connected via the decoupling diodes to the positive terminals of the load sensors output and the non-inverting inputs connected to each other and to the plus output of the reference-voltage source, the latter's minus output connected to the shared bus and the common points of the amplifier substractors. The signal conditioner outputs are connected to the inputs of the relevant AND gates.
EFFECT: improved accuracy alignment of the generators' reactive load currents; enhanced operational reliability of the generators and power supply systems.
4 dwg
