TRANSFORMER OIL TESTSDissolved Gas-in-oil Analysis
Customer: HVES                                       Date: 06/08/2000
Equipment/Unit Location: HVES 30
Manufacturer: Alstom
Serial Number: PGF-0573

TEST                IN SERVICE  NORMS*             RESULTS
Hydrogen (H2)         240  ppm                     <20    PPM
Methane (CH4)         160  ppm                     2      PPM
Acetylene (C2H2)       11  ppm                     <2     PPM
Ethylene (C2H4)       190  ppm                     3      PPM
Ethane (C2H6)         115  ppm                     <2     PPM
Carbon Monoxide (CO)  580  ppm                     59     PPM
Carbon Dioxide (CO2)   n/a                         352    PPM
Oxygen (02)            n/a                         18131  PPM
Nitrogen (N2)          n/a                         71702  PPM

TOTAL GAS              n/a                         90259  PPM
TOTAL COMBUSTIBLES     n/a                         75     PPM

Estimated TCG          n/a                         0.073  %

ANALYSIS: All gases are within accepted limits.

RECOMMENDATION: Resample in 1 year.

*In-Service Norms as follows
Generating            Transmission
H2     240  ppm               100 ppm
CH4    160  ppm               120 ppm
C2H2    11  ppm                35 ppm
C2H4   190  ppm                30 ppm
C2H6   115  ppm                65 ppm
CO     580  ppm               350 ppm
The above analyses were performed using the TOGAS direct injection system
rather than the vacuum extraction method described in ASTM D3612.

PRO/gasoil