JPS6420047U - - Google Patents

Description

[Brief explanation of the drawing]

Figure 1 is a block diagram showing the configuration of an embodiment of this invention, Figures 2 and 3 are concrete block diagrams of the main parts of Figure 1, and Figures 4 and 5 are Figures 2 and 3. FIG. 3 is a waveform diagram of each part, FIG. 6 is a circuit diagram showing the configuration of a conventional example, and FIG. 7 is a waveform diagram of each part of FIG. 6. 1... Power system, 8, 9... Coupling transformer, 10
...Bypass switch, 13...Load, 16,1
7...Compensation power supply.

Claims (1)

[Claims for Utility Model Registration] First and second coupling transformers having secondary windings inserted in series in the power supply path from the power system to the load, and the primary winding of the first coupling transformer. a first compensating power source of small capacity connected to the line, a second compensating power source of large capacity connected to the primary winding of the second coupling transformer, and a second compensating power source of large capacity connected to the primary winding of the second coupling transformer; a bypass switch connected in parallel to a secondary winding, the first coupling transformer is arranged on the power system side, and the second coupling transformer is arranged on the load side, and the voltage fluctuation of the power system is A first compensation voltage is always output from the first compensation power source with the output limited to within the rated output range, and when a voltage fluctuation exceeding a predetermined percentage of the normal voltage of the power system occurs, the first compensation voltage A series type voltage fluctuation compensator configured to output a second compensation voltage for variations in voltage on the load side of a coupling transformer from the second compensation power source and to shut off the bypass switch.