The heating up phase the evacuation of the autoclave and cooling.
Vapor phase oven for transformer.
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.
Vapor phase drying is the most effective method for drying transformer insulation in a manufacturing setting.
A 230 c boiling fluid g.
Working principle under heating and vacuum condition liquid kerosene will become vapor in high temperature.
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.
2 1 hot air hot air with a maximum temperature of 120oc is used for heating up the active parts of the transformer.
The vapor phase process is the ideal solution to reflow temperature control issues in small batch production runs.
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.
In addition all imdes vapour phase furnaces are equipped with a profiler function with which temperature profiles can be set.
The two methods only differ in the heating up phase hot air and vapor phase.
Reducing the pressure leads to a lower boiling point which causes the dissolved water in the transformer s active part to vaporize.
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.
Generally there are three steps to the process.
3l becher pyrex heater cheap chinese like and an optional thermocouple reader.
The mini has an output of 1000 watt and has a cycle time of 10 minutes.
Hitachi abb power grids 284 290 views.
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.
Simple made home made vapor phase oven.
Unlike convection this type of ovens uses condensation or vapor phase for soldering.
Power transformers and shunt reactors proven history for future success duration.
Kerosene vapor phase drying equipment kvpd is mainly suitable for drying transformer bodies in super high voltage than 110kv and big capacity.
