Exploring Guardian Hipot Analyzer
Designed for hipot tests and analysis of transformers, motors and other electronic components
The dielectric withstanding voltage of components depends on materials and the manufacturing processes. For improving insulation in components, discharge levels should be defined including Corona discharge, Flashover and Breakdown. The Guardian 19055 is equipped with a Discharge Level Analysis mode (DLA) for defining the programming voltage, time, counts and limits.
The Guardian 19055 Hipot Analyzer provides discharge analysis of three levels. DLA mode will indicate the withstanding voltage depending on the different level limit beginning with Corona Discharge Start Voltage (CSV), Flashover Start Voltage (FSV), and Breakdown Voltage( BDV). R&D and QC personnel are able to improve insulation by discharge data collection and analysis.
All hipot and dielectric test equipment have the ability to detect a breakdown, and some have the ability to detect flashover (ARC), but only a few have the added ability to detect CORONA DISCHARGE. Although safety agencies have not included any requirement to measure the corona discharge in the safety test requirements, by accurately measuring the leakage current dynamically in very small levels, it is possible to determine if the unit is in one of the following conditions:
Corona Discharge: an electrical discharge brought on by the ionization of a fluid surrounding a conductor, which occurs when the potential gradient (the strength of the electric field) exceeds a certain value, but conditions are insufficient to cause complete electrical breakdown or arcing. Corona discharge may be an early symptom of an impending breakdown.
Flashover: an electrical breakdown of a gas that produces an ongoing plasma discharge, resulting from a current flowing through normally nonconductive media such as air.
Breakdown: a rapid reduction in the resistance of an electrical insulator that can lead to a spark jumping around or through the insulator. This may be a momentary event (as in an electrostatic discharge), or may lead to a continuous arc discharge if protective devices fail to interrupt the current in a high power circuit.
|Guardian 19055||Hipot Analyzer (AC/DC/IR) - 500VA|
|Guardian 19055-C||Hipot Analyzer (AC/DC/IR/DLA/CDD) - 500VA|
|A190355||19" Rack Mount Kit|
|A190356||GPIB Interface for Model|
|A190301||(1930A) 8HV Scanning Box [19055x]|
|A190708||ARC Verification Fixture|
and Test Limit
& Handler Interface
Webinar: Electrical Safety Testing 101