EARTH CURRENT CLASSIFICATION COEFFICIENT MEASUREMENT AND EARTH RESISTANCE ANALYSIS SYSTEM BY USING COMBINATION OF VOLTAGE CONTROLLER AND BOOSTER

摘要

PURPOSE: An earth current classification measurement and earth resistance analysis system is provided to improve reliability by using a combination of a voltage controller and a booster to maximize a test current. CONSTITUTION: An earth current classification measurement and earth resistance analysis system comprises a power source apparatus for injecting a test current, a data acquisition, analysis apparatus, and other apparatus. The power source apparatus is comprised of an independent source generator(1), a voltage controller(2), and a booster(3). The independent source generator generates power having 1.6 kVA, an output voltage of 100V, and an output frequency of 50Hz. The voltage controller varies an input voltage of 100V into an output voltage of 0 to 130V. The data acquisition and analysis apparatus are comprised of a voltage sensor(4), a multi-channel data acquisition unit(5), a data analyzer(6), and an output device(7).