Dielectric Withstand or hipot testing is done by applying high voltage between wire being tested and ground, presumably locomotive chassis. If excess current leakage or if an arc occurs, test fails. Insulation Resistance testing provides numerical value indicating resistance insulation. Information on how hipot testers work can be read below.
Hi Pot can either be AC DC, done occasionally or at assembly line end among others. Stress test result commonly indicates Pass Fail in view of current leak. For a few structures, this may demonstrate risk. Testing median voltage cable might likewise demonstrate risk.
Dielectric strength presents maximum electrical field that pure material may withstand underneath ideal setting without tearing down or without experiencing failure with its insulating properties. Theoretical dielectric strength is material intrinsic property on bulk material and independent configuration material or electrodes with which field is put to use. This inherent dielectric withstand corresponds what is being measured using untouched materials under controlled laboratory settings.
In breakdown, electric field effectively frees bounded electrons. When applied electrical field is high, free electrons coming from background current radiation may be accelerated with velocities that may liberate additional bounded electrons upon meeting neutral atomic particles, molecules within avalanche breakdown. Breakdowns occur quite suddenly, typically nanoseconds, causing an electrical conduction path formation and disruptive discharge through material. Towards solid materials, breakdowns severely degrades, even neutralizing, its capability to insulate.
Regarding insulation di electric testing variations, none exists. There exists no significant dissimilarity between dielectric testing and insulation. Di electric strength value basically shows how adept an electrically conducive object. Now about testing, frequency measuring volts must be verified by specific volt type insulating objects would receive during its operation period. Which simply means one must not DC withstand measure components that would be employed for AC 5060 Hertz purposes.
Whilst they are only two particular and altogether different techniques, these terms are irresponsibly tossed around reciprocally in trade. So you cannot without much stretch depend on those names precisely portraying what is being examined closely by way test was done. For instance, in Practice manual Dielectric Tests, wherein Di electric Tests within definition is mix of HiPot tests Insulation Resistance tests.
Whereas, typically, HiPot tester being used for Di electric Strength Withstand test would suit utilization for an Insulation Resistance test. Specific terminology used would really depend on company you are working, dealing with. If it really matters, you need to read given procedure description itself.
Insulation Resistance analyzation would dependably indicate DC. Di electric Quality test will typically be AC, however, could be DC. In the event that one checks whether one or the other could be skipped as they examine same things, investigations were done previously. Both are required as they give distinctive information as their final data.
An emphasis on these tests interchangeability would trivial because, at the end of the day, most insulated materials go through both as it unwise generally to pigeon hole your substance product into using only one frequency, electrical transmission when most cases it will work for both assuming they have same amount. Using 48v DC system, generally using materials with secondary rating around 600v ac should suffice. Ultimately as long as one does not fail hipot, everyones happy regardless of insulated matter used.
Hi Pot can either be AC DC, done occasionally or at assembly line end among others. Stress test result commonly indicates Pass Fail in view of current leak. For a few structures, this may demonstrate risk. Testing median voltage cable might likewise demonstrate risk.
Dielectric strength presents maximum electrical field that pure material may withstand underneath ideal setting without tearing down or without experiencing failure with its insulating properties. Theoretical dielectric strength is material intrinsic property on bulk material and independent configuration material or electrodes with which field is put to use. This inherent dielectric withstand corresponds what is being measured using untouched materials under controlled laboratory settings.
In breakdown, electric field effectively frees bounded electrons. When applied electrical field is high, free electrons coming from background current radiation may be accelerated with velocities that may liberate additional bounded electrons upon meeting neutral atomic particles, molecules within avalanche breakdown. Breakdowns occur quite suddenly, typically nanoseconds, causing an electrical conduction path formation and disruptive discharge through material. Towards solid materials, breakdowns severely degrades, even neutralizing, its capability to insulate.
Regarding insulation di electric testing variations, none exists. There exists no significant dissimilarity between dielectric testing and insulation. Di electric strength value basically shows how adept an electrically conducive object. Now about testing, frequency measuring volts must be verified by specific volt type insulating objects would receive during its operation period. Which simply means one must not DC withstand measure components that would be employed for AC 5060 Hertz purposes.
Whilst they are only two particular and altogether different techniques, these terms are irresponsibly tossed around reciprocally in trade. So you cannot without much stretch depend on those names precisely portraying what is being examined closely by way test was done. For instance, in Practice manual Dielectric Tests, wherein Di electric Tests within definition is mix of HiPot tests Insulation Resistance tests.
Whereas, typically, HiPot tester being used for Di electric Strength Withstand test would suit utilization for an Insulation Resistance test. Specific terminology used would really depend on company you are working, dealing with. If it really matters, you need to read given procedure description itself.
Insulation Resistance analyzation would dependably indicate DC. Di electric Quality test will typically be AC, however, could be DC. In the event that one checks whether one or the other could be skipped as they examine same things, investigations were done previously. Both are required as they give distinctive information as their final data.
An emphasis on these tests interchangeability would trivial because, at the end of the day, most insulated materials go through both as it unwise generally to pigeon hole your substance product into using only one frequency, electrical transmission when most cases it will work for both assuming they have same amount. Using 48v DC system, generally using materials with secondary rating around 600v ac should suffice. Ultimately as long as one does not fail hipot, everyones happy regardless of insulated matter used.
About the Author:
Get an overview of the factors to consider when selecting a hipot tester supplier and more information about a reputable supplier at http://www.rossengineeringcorp.com/products/measurement/ac-dc-digital-hipots.html now.
0 Comments