| 主权项 |
1. A load testing apparatus comprising:
a resistive unit that includes one or more resistor groups having a plurality of resistors and is connected with a power source to be tested for a load test; a cooling fan that cools the resistors in the resistive unit; a control unit; a current/voltage warning part indicating by at least one of light and sound that the off control is based on the information from the current/voltage detection part; a temperature warning part indicating by at least one of light and sound that the off control is based on the information from the temperature detection part; and a cooling fan warning part indicating by at least one of light and sound that the off control is based on the information from the rotation state detection part wherein the resistive unit is provided with a current/voltage detection part that detects a current flowing through or a voltage applied to the resistors, the resistor groups, or the resistive unit and a temperature detection part that detects an exhaust temperature at a downstream of the resistive unit, a rotation state detection part that detects a rotation state of the cooling fan is provided in the cooling fan, and the control unit performs off control that stops power supply from the power source to be tested to the resistive unit based on information from the current/voltage detection part, information from the temperature detection part, and information from the rotation state detection part; wherein the resistive unit has the two or more resistor groups, the resistor group includes two or more selection switches that are used for selecting whether or not the power from the power source to be tested is supplied, the current/voltage detection part is provided for every resistor group, and as the current/voltage warning part, a lighting device is provided in a vicinity of each of the two or more selection switches; and wherein for the resistor group which has been selected as a power supply object from the power source to be tested via the selection switch, a determination is made as to whether or not a value of a current flowing through the resistor group or a value of a voltage applied to the resistor group is within a range during normal operation, and for the resistor group which has not been selected as the power supply object from the power source to be tested, a determination is made as to whether or not the current flows through the resistor group or whether or not the voltage is applied to the resistor group. |
