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Additional considerations to laboratory dielectric breakdown test sets
Additional considerations to laboratory dielectric breakdown test setsUsers of oil test sets who work in the laboratory have priorities that are different from those of users who work in the field. For example, in a laboratory environment, the weight of the instrument is usually not a concern, but the ...
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Reliability of test results of BDV tester
Reliability of test results of BDV testerNote There are five key areas that directly affect an instrument's ability to produce accurate test results. These are cleanliness, the method of breakdown detection, the speed at which the instrument switches off the test voltage after a breakdown, the accuracy ...
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Other matters may be noted when selecting BDV tester
Other matters may be noted when selecting BDV tester(1) Sample temperature measurementAn instrument that features built-in automatic oil-sample temperature measurement offers important benefits. With these instruments, the temperature sensor is in contact with a thin section of the test cell; unlike ...
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"Extra costs" should be considered when selecting BDV tester
"Extra costs" should be considered when selecting BDV testerAdditional and replacement test vessels. IEC 60156 recommends that a separate test vessel is used for each type of fluid to be tested. Many laboratories adhere to this advice and as a result, have six or more test vessels. It is important, therefore, ...
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Considering "Ease of use" when selecting dielectric breakdown voltage tester
Considering "Ease of use" when selecting dielectric breakdown voltage tester(1) An instrument that is difficult to use is not just an irritation, it also wastes time and reduces productivity. Look for an instrument that has a clear and straightforward user interface. Operation of the instrument should ...
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Taking "Cleanliness" into consideration when selecting oil dielectric test set
Taking "Cleanliness" into consideration when selecting oil dielectric test set(1) Insulating fluids are hazardous. Skin contact with these fluids should be avoided. Instrument should be designed to minimise the risk of spilage, and to make spillage as easy as possible to deal with if it should occur.(2) ...
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On-site BDV testing or Laboratory BDV testing, which is better?
On-site BDV testing or Laboratory BDV testing?The relative merits of on-site and laboratory testing have long been debated by engineers and the debate is still going on. The underlying issue is that test results are greatly influenced by contamination. There are those who argue that this means it is ...
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How do oil test sets detect dielectric breakdown?
How do oil test sets detect dielectric breakdown?Efficient breakdown detection is very important as it determines the ability of the instrument to correctly register the breakdown voltage of the oil, and also to limit the amount of energy dissipated in the arc in the oil. For these reasons, the oil testing ...
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Can I verify my BDV test set performance by comparing the results from two test
Can I verify my BDV test set performance by comparing the results from two test sets on the same sample of oil?Yes, but you must consider these potential issues:(1) Even if you can transfer the oil sample from one test set to another in the same test vessel you may not get exactly the same test results. ...
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Can new oil fail a dielectric breakdown test?
Can new oil fail a dielectric breakdown test?The simple answer is yes, new oil can fail a breakdown test. Sometimes users suspect that their test set is faulty because it is failing new oil. When the test set is checked however, almost invariably no fault is found. The true situation is that the oil ...
