JPS6252000U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a circuit diagram of an automatic voltage regulator according to an embodiment of this invention, and FIG. 2 is a circuit diagram of a conventional automatic voltage regulator. 1 is a generator, 2 is a PT, 4 is an automatic voltage regulator,
5 is a voltage detector, 6 is a voltage setting device, 13 is a line impedance, 14 is a power system bus, 15 is a bus PT, and 16 is a voltage relay. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.

Claims (1)

[Scope of utility model registration request] The output side voltage of a synchronous generator, etc. is detected by the voltage detection circuit of the generator, and the detected voltage detected by the voltage detection circuit and the voltage set by the voltage setting device are compared by a comparator amplifier, and a deviation signal between the two voltages is generated. In the automatic voltage regulator of the generator, which supplies the excitation current from the excitation power supply rectified by the thyristor main circuit which rectifies according to the phase control signal output from the phase control circuit according to the phase control circuit to the above-mentioned synchronous generator, etc., the above-mentioned synchronous A bus voltage detection circuit is provided to detect the voltage of the bus of the power system to which the generated output is supplied from the generator, etc., and the operating state is determined when the generator or disconnector installed between the synchronous generator, etc. and the bus is turned on. An automatic voltage adjustment device for a generator, characterized in that the automatic voltage adjustment device for a generator is provided with a voltage relay that adjusts the set voltage of the voltage setting device according to the voltage detected by the bus voltage detection circuit.