Patent ID: 8878558
Filing Date: 2014-11-04
Classification: G01R

Abstract:
1. A load testing machine, comprising: a first resistance unit to a sixth resistance unit; a first cooling fan to a sixth cooling fan; insulators between the first to sixth resistance units and the first to sixth cooling fans; and connection cables, wherein each of the first to sixth resistance units includes a plurality of steps of resistor groups each formed of a plurality of rod-shaped resistors parallel to a x-direction connected together electrically in series arranged at predetermined intervals in a y-direction vertical to the x-direction, the resistor groups being arranged in a z-direction vertical to the x-direction and the y-direction, the first to sixth cooling fans face the first to sixth resistance units, respectively, in the z-direction, the first to third resistance units are arranged in the x-direction at intervals of not smaller than a first distance, the fourth to sixth resistance units are arranged in the x-direction at intervals of not smaller than the first distance, the first and fourth resistance units are arranged in the y-direction at an interval of not smaller than a second distance, the second and fifth resistance units are arranged in the y-direction at an interval of not smaller than the second distance, the third and sixth resistance units are arranged in the y-direction at an interval of not smaller than the second distance, the connection cables are cables used for electrically in series and detachably connecting, at more than one part, resistor groups next to each other in the y-direction of two resistance units next to each other in the y-direction with the interval of not smaller than the second distance in between, and the insulators each have a size corresponding to a rated voltage of a target power supply of a power supply load test to be conducted using a resistance unit group, the resistance unit group having electrically in series connected resistors of two resistance units next to each other in the y-direction with the interval of not smaller than the second distance in between.