What is VLF testing ?
VLF testing is a method to test Medium voltage and high voltage cable for verifying the cable insulation . VLF diagnostic testing is a withstand voltage test usually carried out at a frequency of between 0.1 Hz and 0.01 Hz rather than 50/60 Hz.
Series resonance is related with circuit and series connection. It is a resonance condition that usually occurs in series circuits. Generally, A series resonance test system is classified into two types regulating the induction and regulating frequency. It is composed by an exciting transformer, variable frequency power, capacitive voltage divider and reactor.
Testul Hipot este prescurtarea de la „high potential test” (test de înaltă tensiune) și mai este denumit test de rezistență dielectrică, test de presiune sau test de izolație. Testul Hipot este o metodă de testare nedistructivă care determină eficacitatea izolației în ceea ce privește rezistența la supratensiuni tranzitorii.
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