Citra Wahana Sekar Buana

Product

Laboratory & Analysis

Specification
  • Fully automatic procedure
  • One touch operation
  • Multi-periodic vacuum degassing
  • Full TOGA analysis (11 gases)
  • Automatic transfer of gas sample
Description

TOP TOGA GC

Dissolved Gas Analysis with automatic degassing unit According to IEC 567/ASTM 3612

The analysis is done in 2 steps with high selectivity and accuracy fully compliable with laboratory procedure.

  1. Degassing of the oil sample through vacuum extraction (according to IEC 567/ASTM3612 )
  2. Dissolved gas analysis TCD (thermal conductivity detector) , FID ( Flame Ionization detector) and Methanizer. Both steps are synchronized by a micro-controller which guarantees a fast and reliable measurement routine.

A new invented vacuum degassing method (Patent pend. DE 102 52 652 4) degasses the oil sample multiperiodical. After extraction through a 4-step vacuum pump the gases are dosed into the vacuum chamber and separated.

In and outlet of the oil sample as well as the switching valve are micro-processor controlled. A linear pressure sensor measures the total gas content online which is a very important quality parameter for the characterization of the transformer load.

The injection of the gas sample into the gas chromatograph is via a fixed mounted transfer pipe. 

The analysis of the dissolved gas is done after automatic injection in an automatic sample loop (6 port valve) of the gas chromatograph. The gas sample is separated in an inert gas stream into 11 components. This guarantees a high selectivity with no interference of other gas signals.

Two capillary columns (type Carboxen 1010, length 30m x ID 0,32 mm and Molesiev) are used for the separation of the different compounds.

Detection is carried out with a TCD (Thermal Conductivity Detector) and FID (Flame Ionization Detector). The compounds CO and CO2 are converted with a Methanizer for detection on the FID which guarantees a very high sensitivity.

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