Vapor Phase Oven For Transformer

Generally there are three steps to the process. The process does not lend itself well to transformer drying in the field for a variety of reasons including the difficulty of removing residual kerosene which can cause a potential change in transformer oil flash point. Heating of insulation materials under vacuum reduced oxygen levels minimize oxidation and thermal aging of cellulose materials resulting in less loss of life than can be achieved in rapid oven drying or radiation processes.

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Kerosene Vapor Phase Vacuum Drying Furnace For Power Transformers With Images

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Vapor phase oven for transformer.

Many advantages exist by using a vapor phase process in the manufacture of power transformers. 3l becher pyrex heater cheap chinese like and an optional thermocouple reader. In contrast with the convection reflow oven the vapor phase reflow oven has a much smaller footprint and the pcb assembly moves vertically up and down instead of sideways. Vapor phase drying is the most effective method for drying transformer insulation in a manufacturing setting.

The heating up phase the evacuation of the autoclave and cooling. A 230 c boiling fluid g. The vapor comes from boiling perfluoropolyether an inert heat transfer liquid. Processes for transformer drying which have eventually lead to vapor phase drying technology are hot air hot air with rough vacuum vacuum drying oven oil circulation oil spray vacuum pressure impregnation.

The vapor phase process is the ideal solution to reflow temperature control issues in small batch production runs. Kerosene vapor phase drying equipment kvpd is mainly suitable for drying transformer bodies in super high voltage than 110kv and big capacity. Unlike convection this type of ovens uses condensation or vapor phase for soldering. Power transformers and shunt reactors proven history for future success duration.

In addition all imdes vapour phase furnaces are equipped with a profiler function with which temperature profiles can be set. Reducing the pressure leads to a lower boiling point which causes the dissolved water in the transformer s active part to vaporize. Hitachi abb power grids 284 290 views. Unlike ir or convection batch type ovens with varying temperature control concerns our vapor phase ovens provide you with evenly distributed temperature throughout the production cycle completely under your control.

The two methods only differ in the heating up phase hot air and vapor phase. The mini has an output of 1000 watt and has a cycle time of 10 minutes. 2 1 hot air hot air with a maximum temperature of 120oc is used for heating up the active parts of the transformer. Working principle under heating and vacuum condition liquid kerosene will become vapor in high temperature.

The imdes mini condens it is a small vapour phase soldering furnace suitable for pcb s with maximum dimensions of 240 x 170 x 20 mm.

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