Load testing apparatus and coupling switch unit for load testing apparatus

摘要

A load testing apparatus includes a resistance unit configured with a plurality of resistor-groups arranged in stages, each resistor-group including an array of resistors, and a coupling switch unit including a main body, a switching unit that controls resistor-groups applied for a load test among the plurality of resistor-groups, and a first bus bar coupled to a first terminal of the switching unit and one of power source lines from a power source subjected to the load test. A terminal of the resistor of the resistor-group is coupled to a second terminal of the switching unit. The main body includes a first face and a second face vertical to the first face, the switching unit being attached to the first face, the first bus bar being attached to the second face via an insulator with a certain gap between the first bus bar and the second face. The coupling switch unit is detachably attached to the resistance unit so as the switching unit to be positioned between the first bus bar and the terminal of the resistor coupled to the switching unit via a cable.

主权项

1. A load testing apparatus comprising:
a resistance unit configured with a plurality of resistor-groups arranged in stages, each resistor-group including an array of resistors; and a coupling switch unit including a main body, a switching unit that controls resistor-groups applied for a load test among the plurality of resistor-groups, and a first bus bar coupled to a first terminal of the switching unit and one of power source lines from a power source subjected to the load test, wherein a terminal of the resistor of the resistor-group is coupled to a second terminal of the switching unit; wherein the main body includes a first face which is electrically conductive and a second face which is electrically conductive, the second face being vertical to the first face, the switching unit being attached to the first face, the first bus bar being attached to the second face via an insulator, to electrically insulate the first bus bar from the second face, with a certain gap between the first bus bar and the second face; wherein the coupling switch unit is detachably attached to the resistance unit so as the switching unit to be positioned between the first bus bar and the terminal of the resistor coupled to the switching unit via a cable; and wherein the resistor, the switching unit, and the first bus bar are arranged in order of the resistor, the switching unit, and the first bus bar along a straight line through the terminal of the resistor, the second terminal of the switching unit, and the first bus bar.