Abstract: The present invention relates to improvements to automatic permanently installed insulation resistance test equipment. More particularly, the present invention relates to improvements to insulation test equipment for testing low voltage, medium voltage, and high voltage electrical equipment on the order of the rated voltage level while limiting the maximum output current to a safe level. The preferred test output voltage of the insulation test equipment would have a maximum test output of 5000 VDC, due to design considerations, but the AIRT test output could be made to be higher, up to a maximum of 15,000 VDC. After installation of the insulation test equipment in the control cabinet of the electrical equipment there will be no requirement to open the control cabinet to operate the insulation test equipment. The improvements will also allow personnel to perform an insulation test on electrical equipment without having to manually isolate the electrical equipment from the power source to perform the testing.

Abstract: The present invention relates to improvements to automatic permanently installed insulation resistance test equipment. More particularly, the present invention relates to improvements to insulation test equipment for testing low voltage, medium voltage, and high voltage electrical equipment on the order of the rated voltage level while limiting the maximum output current to a safe level. The preferred test output voltage of the insulation test equipment would have a maximum test output of 5000 VDC, due to design considerations, but the AIRT test output could be made to be higher, up to a maximum of 15,000 VDC. After installation of the insulation test equipment in the control cabinet of the electrical equipment there will be no requirement to open the control cabinet to operate the insulation test equipment. The improvements will also allow personnel to perform an insulation test on electrical equipment without having to manually isolate the electrical equipment from the power source to perform the testing.

Abstract: The present invention relates to improvements to automatic permanently installed insulation resistance test equipment. More particularly, the present invention relates to improvements to insulation test equipment for testing low voltage, medium voltage, and high voltage electrical equipment on the order of the rated voltage level while limiting the maximum output current to a safe level. The preferred test output voltage of the insulation test equipment would have a maximum test output of 5000 VDC, due to design considerations, but the AIRT test output could be made to be higher, up to a maximum of 15,000 VDC. After installation of the insulation test equipment in the control cabinet of the electrical equipment there will be no requirement to open the control cabinet to operate the insulation test equipment. The improvements will also allow personnel to perform an insulation test on electrical equipment without having to manually isolate the electrical equipment from the power source to perform the testing.