Blog
Do You Test Transformer’s Turns Ratio with Sequential or Simultaneous 3-Phase Test?
Great article from DV Power Introduction DV Power TRT instruments, the true three-phase turns ratio testers, enable users to perform two types of turns ratio tests: simultaneous 3-phase test and a sequential 3-phase test. When performing the simultaneous 3-phase test,...
Sweep Frequency Analysis of Transformers
Sweep Frequency Response Analysis is the injection a range of frequencies into a winding of a power transformer. If the transformer is built correctly with no imperfections or faults, the frequency response plot of that particular type of transformer becomes the...
Transformer Efficiency Testing
Transformer Efficiency Testing The efficiency of an ‘ideal’ transformer would be100% but in reality of course, this doesn’t exist because all transformers have losses. Transformer losses comprise copper loss, coreloss and stray losses. As power levels of power...
Power Quality Analysis for Electricity Utilities
Power Quality Analysis for Electricity Utilities The needs of Australian & New Zealand power utilities differ significantly from those overseas where most analysers are designed. Our distribution network is predominantly overhead through extremes of environments...
Cable Identification
CABLE IDENTIFICATION If you are intending to cut a cable, particularly a high voltage cable, it is imperative to be 100% sure it is right cable and the de-energised cable otherwise the result may be catastrophic! Cable Identification or Location? Cable Identification...