Transcription of Insulation resistance testing - Fluke Corporation
{{id}} {{{paragraph}}}
Example: tourism industry
Insulation resistance testing - Fluke Corporation
Insulation resistancetestingIntroductionInsulation resistance testers canbe used to determine the integ-rity of windings or cables inmotors, transformers, switch-gear, and electrical test method is determinedby the type of equipment beingtested and the reason for test-ing. For instance, when testingelectrical cabling or switchgear(low-capacitance equipment)the time-dependent capacitiveleakage and absorption leakagecurrents become insignificantand decrease to zero almostinstantly. A steady conductiveleakage current flow is reachedalmost instantly (a minute orless) providing perfect condi-tions for the spot-reading/short-time resistance test. (For moredetailed information on leakagecurrents and resistance tests seethe following sections: What IsInsulation resistance & Leak-age Currents and PredictiveMaintenance Tests).On the other hand, when theequipment to be tested is a longrun of cable, large motor, orgenerator (high-capacitanceequipment) the time-dependentcurrents will last for currents will cause themeter readings to change con-stantly, making it impossible toobtain an accurate steady read-ing.
2 Fluke Corporation Insulation resistance testing Work safely Safety is everyone’s responsi-bility, but ultimately it is in your hands. No tool by itself can
Loading..
Tags:
Information
Domain:
Source:
Link to this page:
Please notify us if you found a problem with this document: