Test device for testing high voltage energy-storage capacitor

The utility model provides a test device for testing a high voltage energy-storage capacitor. The test device includes an adjustable high voltage direct current voltage stabilization and current stabilization power supply, a high voltage tap switch, a discharge loop, and a current converter and controller; an input end of the adjustable high voltage direct current voltage stabilization and current stabilization power supply is connected with an electric network voltage, and an output end of the adjustable high voltage direct current voltage stabilization and current stabilization power supply, the high voltage tap switch, and the discharge loop are connected in series to form a test system; a current transformer is arranged in the test system; and the controller is connected with the adjustable high voltage direct current voltage stabilization and current stabilization power supply. The test device has universality, can complete detection of a series of products with one test device, and at the same time can realize the rapid customization of the product test device based on the product research and development and production requirements of the enterprise. The test device for testing the high voltage energy-storage capacitor can, without changing the platform hardware control circuit, only update the software to realize the test function of different products.