Load testing apparatus and coupling switch unit for load testing apparatus

A load testing apparatus comprising:

• a first resistance unit configured with a plurality of resistor-groups arranged in stages, each resistor-group including an array of resistors;
• a second resistance unit provided separately from the first resistance unit and configured with the plurality of resistor-groups arranged in stages;
• a coupling member that couples the resistor-group of the first resistance unit and the resistor-group of the second resistance unit;
• 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 of the first resistance unit 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, and
• the coupling switch unit is detachably attached to the first 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.

A coupling switch unit for a load testing apparatus, the coupling switch unit being attached to a resistance unit configured with a plurality of resistor-groups arranged in stages, each resistor-group including an array of resistors, the coupling switch unit comprising:

• 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,
• 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, and
• 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.

A load testing apparatus comprising:

• a resistance unit configured with a plurality of arranged resistor-groups each 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,
• 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, and
• 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.

A load testing apparatus comprising:

• a first resistance unit configured with a plurality of arranged resistor-groups each including an array of resistors;
• a second resistance unit provided separately from the first resistance unit and configured with the plurality of arranged resistor-groups;
• a coupling member that couples the resistor-group of the first resistance unit and the resistor-group of the second resistance unit;
• 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 of the first resistance unit 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, and
• the coupling switch unit is detachably attached to the first 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.

A coupling switch unit for a load testing apparatus, the coupling switch unit being attached to a resistance unit configured with a plurality of arranged resistor-groups each including an array of resistors, the coupling switch unit comprising:

• 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,
• 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, and
• 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.