On-line diagnostic method and control of dielectric behavior of power transformers and apparatus for making the same

摘要

the way in which the transformer (1), the control pocu00edtacem (4) prubeu017ene merena relative humidity (rh) oil nu00e1plne (102) and at least one temperature (to) oil nu00e1plne (102).merenu00e9 veliciny is stored in memory ru00eddu00edcu00edho computer (104).the vypocu00edtu00e1vu00e1 and stores in the memory content of the water (qv) in oil load (102) and prubeu017ene vypocu00edtu00e1vu00e1 theoretical dielectric strength (up, t) oil nu00e1plne (102).then compared zmerenou value dielectric strength (up, lab) oil from the oil nu00e1plne (102) in the lab to casovu00e9ho point of odberu sample oil from the oil nu00e1plne (102).the results are used to on-line diagnosis of dielectric behavior of the transformer (1) and for online use its dielectric behaviour.device consists of a transformer (1), which is pripojen snu00edmac (2) moisture content oil nu00e1plne (102), the upper snu00edmac (3) temperature, the control computer (4) and the regulator (6) temperature.in nu00e1dobe (10) is an active part of the transformer (1), consisting of a coil (101) and a magnetic circuit (100). the active part of the transformer (1) is vnorenu00e1 to nu00e1plne (102) transformu00e1torovu00e9ho oil.the upper part of the container (10) is connected spu00e1dovu00fdm pipe (13) with konzervu00e1torem (12).to the right and to the left side of the container (10) is the upper nu00e1trubkem (111) and the lower nu00e1trubkem (112) pripojen chladic (11) oil nu00e1plne (102).on the chladic (11) is pripevnena closet (113) chladice (11), which is opatrenu00e1 fan (114). on the left side is a container (10) transfomu00e1toru (1) opatrena odberovu00fdm spigot (14).in the top nu00e1trubku (111) is installed the upper receptacle (31) of the upper snu00edmace (3) temperature oil nu00e1plne (102) and sleeves (21) snu00edmace (2) moisture content oil nu00e1plne (102). the upper snu00edmac (3) temperature