SIMULATED TRANSFORMER AND WITHSTAND VOLTAGE SIMULATED TEST DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a simulated transformer and a withstand voltage simulated test device capable of attaining a withstand voltage test in simulation with low voltage and easily changing test conditions.

SOLUTION: A withstand voltage simulated test device 60 comprises: a variable transformer 12 which makes commercial power supply voltage up and down to a predetermined voltage range; a power switch 13 which connects/disconnects the commercial power supply voltage and a primary side of the variable transformer 12; a fuse 14 which prevents inflow of excess current to the variable transformer 12; and an insulation transformer 11 which prevents transmission of surge voltage from the simulated transformer 50 described in Fig. 1, and executes the withstand voltage test of the simulated transformer 50 by applying voltage equivalent to abnormal voltage to be applied to an actual transformer to the simulated transformer 50 at a state that a secondary side of the variable transformer 12 is connected to the primary side of the insulation transformer 11 and a secondary side of the insulation transformer 11 is connected to the simulated transformer 50 to be tested. In addition, an insulating plate 15 for preventing electrification is erected between the insulation transformer 11 and the variable transformer 12.

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