An insulation state detecting device includes a positive side input terminal connected to a positive side power line of a high voltage DC power supply, a negative side input terminal connected to a negative side power line of the high voltage DC power supply, a ground electrode, a controller that detects insulation states between the positive side power line and the negative side power line and the ground electrode based on a charge voltage of a flying capacitor, and an equilibrium state forming circuit that promotes an operation of transiting a charge state of a positive side electrostatic capacitance between the positive side power line and the ground electrode and a charge state of a negative side electrostatic capacitance between the negative side power line and the ground electrode from non-equilibrium states to equilibrium states.
Insulation state detecting device
2016-08-23
Patent
Electronic Resource
English
INSULATION ABNORMALITY DETECTING DEVICE AND INSULATION ABNORMALITY DETECTING METHOD
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