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Variable-Pressure Vacuum Drying Equipment

Variable-Pressure Vacuum Drying Equipment
Variable-Pressure Vacuum Drying Equipment
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Product Code : 20
Product Description

Variable-pressure vacuum drying equipment

Description of variable-pressure vacuum drying equipment
This kind of furnace adopts variable-pressure drying principle suggested by Dr. Moll from Germany, specialized for drying transformer and power capacitor bodies. Comparing to conventional vacuum heating drying method, drying duration of this variable-pressure type has been saved about 30-45%.

Application of variable-pressure vacuum drying equipment:

  • Drying transformer bodies in grade 10~110kV, capacity less than 100,000kVA
  • Drying transformer windings in 110~500kV grade
  • Drying current transformer and potential transformer bodies in 110~500kV grade
  • Drying power capacitors
  • Drying other electrical materials

Main features of variable-pressure vacuum drying equipment:

  • Compact structure, small occupation
  • High productivity: when drying one 110kV, 40000KVA transformer body, it will take only about 50 hours, close to that by kerosene vapor-phase drying equipment
  • Heating system is controlled by power control module, assuring even and stable temperature; Real power consumption during temperature-keeping is only about 35% of total power; There is no fluctuation of heating load and thus reduces actual heating power very much.
  • PLC control, high automation, more stable and reliable
  • Special baffle valves for vacuum drying, better vacuuming performance

Specifications of variable-pressure vacuum drying equipment:

Vacuum drying tank

  • Tank size: according to requirement
  • Ultimate vacuity: <50Pa (unloaded, cold)
  • Tank leakage: 300Pa•L/S
  • Heating temperature: 130℃
  • Temperature tolerance: ±2℃
  • Vacuum system
  • Ultimate vacuity: 10Pa (unloaded, cold)
  • Max. extracting speed: 900L/S
  • Adopts low-temperature condenser, better condensing result, shorter drying duration
  • Heating system: electric heating, power 96kW, heating oil media
  • Water-cooling system: can be cooling tower or special water cooler
  • Control system: Siemens PLC control, automatic controlling vacuity, heating and cooling.


Cangzhou Industrial Zone, Cangzhou - 061000, Hebei, China
Mr Owen Ge (Director)

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