CMM-6/7 Mobile Degassing Unit

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The СММ-6/7 is designed for purification1Oil purification removes oil contaminants in order to prolong oil service life. of electrical insulating oils2Insulating oil is an oil that is stable at high temperatures and has excellent electrical insulating properties., removing water, gas and solid particles, and for transformer evacuation3Transformer evacuation is a process for drying insulation and insulating materials present in power transformers of various sizes..

This unit is normally used during installation, operation and servicing of oil-filled high voltage equipment (transformer4A transformer is a static electrical device that transfers electrical energy between two or more circuits., high voltage switches5Switchgear is composed of electrical disconnect switches, fuses or circuit breakers used to control, protect and isolate electrical equipment. etc).

The unit can be operated in the following modes:

  • transformer heating: in this mode the oil is filtered and heated;
  • oil degassing6Transformer oil degassing is a complex of processes targeted at the removal of water, gasses, and mechanical impurities from the dielectric oil.: this mode is for filtration, drying and degassing oil;
  • transformer evacuation.

Parameter

Value

Capacity, m3/hour, not less than

 

– degassing, drying and filtration mode

6

– heating and filtration mode

14

* Processed oil parameters:

 

– gas content, % vol, max

0,1

– water content, ppm, max

5

– ISO 4406 purity class

-/14/12

Max oil output temperature in heating mode, ºС

90

Outlet pressure, MPa

0,2

Max heater power, kW

125

Max power consumption, kW

175

Residual vacuum chamber pressure for degassing, Pa, max

267

Residual vacuum chamber pressure for seal test, Pa, max

26,7

Max air leak in 1 hour seal test, Pa

267

Power supply

 

– voltage, V

220

– frequency, Hz

60

Dimensions, mm

 

– length

2680

– height

2110

– width

2150

Weight, kg

2710

* Note –  Initial oil quality parameters:

  • gas content: below 10.5% vol
  • water content: below 0.01% (100 g/t)
  • temperature: above 0 ºС.

  • versatility;
  • no need to use adsorbents for transformer oil drying;
  • no air pollution and no waste streams to dispose of or store;
  • simple operation and servicing;
  • best oil quality even after one processing cycle;
  • low power requirements;
  • low noise levels.

 

 

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