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Oil immersed transformer vcuum drying machin and vcuum oilin

Oil immersed transformer vcuum drying machin and vcuum oilin

Item No.: GZ-2*2*3
In the vacuum oiling equipment, to achieve the function of vacuum drying
INQUIRY
Introduce the four stages of voltage transformation vacuum dry method and itstechnical performance.

I Description of variable-pressure type vacuum drying equipment for transformers:

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

II Main features of variable-pressure vacuum drying equipment for transformers:

 1) Compact structure, small occupation

 2) 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.

 3) PLC control, more stable and reliable

 4) Special baffle valves for vacuum drying, better vacuuming performance
vacuum drying equipment

III Buildup of variable-pressure vacuum drying equipment for transformers:

3.1 Vacuum drying tank: square shape, one

3.2 Vacuum system: one

3.3 Low-temperature condensation filter

3.4 Heating system: one

3.5 Water-cooling system: one

3.6 Compressed air system: one

3.7 Electric control system

 

IV Main technical data of one typical variable-pressure vacuumn drying equipment for transformers:

Item

Data

Vacuum drying autoclave

1)

Effective inner dimension

2000 x 2000 x 3000mm (L x W x H)

2)

Ultimate vacuity

< 50Pa (idle, cold)

3)

Leakage of autoclave

< 300Pa·L/S

4)

Max. heating temperature

130℃

5)

Temperature evenness inside

±2℃

6)

Max. loading capacity

50T

7)

Temperature sensor

3 units

Vacuum system

1)

Ultimate vacuity

< 10Pa (idle, cold)

2)

Max. extracting speed

900L/S

3)

SV-300 rotary vacuum pump

1 unit

4)

ZJ900 Roots pump

1 unit

Heating power

96kW

Heating media

Heat induction oil

Control system

1)

Temperature displaying meter

3 units

2)

Temperature control meter

1 unit

3)

Vacuum transmitter

1 unit

4)

PLC + HMI

Siemens