Transformer fault analysis and processing - high voltage transformer common fault reason analysis

Due to manufacturing quality aspects of problems in oil storage tank,and sealed,leading to the insulation fault and could explode,in some oil storage on the ark cover plate thinner,poor welding,flange gasoline generator box along a thin,wide pitch and fine processing technology is not the faying surface rough inequality. In addition,if you use the sealant mat quality is bad,after long-term use of metamorphism and lose elasticity,even and crack,caused by leakage and be affected with damp be affected with damp.Moisture absorption device installation is unreasonable,if disrepair,silica gel,when humidity increase temperature mutations,moisture will enter the transformer,the insulation,water enters the body breakdown caused by water.Body design,selection of materials and processing technology,the existing problems,such as more than 110 kv voltage transformer,the enameled wire,some winding process is lax,deformation,coil turns overlapping,when winding motor run capacitor tightness is differ,or layer insulation thickness,could produce layer or interturn short-circuit cause transformer explosion.

Choose the material quality is bad,if 220 kv capacitor type current transformer structure,selection of cable if poor insulation performance is easy to cause trouble,and support such as voltage transformer insulation board selects absorbent material is big,and not through immersion oil processing,insulation performance is poor,also easy to cause breakdown caused by the fault.12v motor Voltage transformer body support plate quality bad,runtime craze,partial discharge and then extended to breakdown in pairs.Cascade type voltage transformer iron core structure has defects,the clamping screw have suspended potential or spiral Angle caused by partial discharge;With double core voltage transformer,such as the spacing between the two core is not enough,can also cause climb lightning collaterals cause faults in the operation.Transformer terminal derivation of the leakage of oil or leading-out terminal acmotortrading.blogspot.com board insulation fault may cause failure.Transformer fault in addition to manufacturing,material selection,design and test report lax wait for a reason,and operation maintenance is not timely,also found that the problem could not handle in time,have a direct relationship and disrepair.