Method and system for obtaining alternating quantity required by fixed value checking of relay protection device

The present invention comprises a method and system for obtaining an alternating quantity required by fixed value checking of a relay protection device. The method provided by the invention comprises: obtaining a product to be checked and the fixed value to be checked of the product to be checked, and generating a corresponding work table according to the product to be checked and the fixed value to be checked; obtaining a basic parameter and a reference fixed value corresponding to the fixed value to be checked of the product to be checked according to the product to be checked and the fixed value to be checked, and respectively recording the basic parameter and the reference fixed value in preset ranks in the work table; and determining the alternating quantity of the product to be checked in accordance with the reference fixed value according to the basic parameter and a preset function with respect to the fixed value to be checked. According to the invention, the alternating quantity of the product to be