Bahrain tender for supplying and commissioning of transformer oil analyzers
SUPPLYING AND COMMISSIONING OF TRANSFORMER OIL ANALYZERS: DISSOLVED GAS, FURAN & PASSIVATION CONTENTS (Electricity Transmission Directorate)
5. OPERATIONAL REQUIREMENTS
i. GC - TRANSFORMER OIL GAS ANALYZER
The system should be installed and commissioned by the supplier at ETD's in-house laboratory. The analyzer has to detect the presence of the following dissolved gases in Transformer oil and measure their concentrations with the given minimum detection level.
Gases to be measured:
Hydrogen (H2), Methane (CH4), Ethane (C2H6), Ethylene (C2H4), Acetylene (C2H2), Carbon monoxide (CO), Carbon dioxide(CO2), Oxygen (O2), Nitrogen (N2), Propane (C3H8), Propylene (C3H4), Butene (C4H8)
Minimum measurement range
Nitrogen (N2): 15ppm
Acetylene (C2H2): 0.5ppm
Carbon monoxide (CO): 0.5ppm
Hydrogen (H2): 0.5ppm
Methane (CH4): 0.5ppm
Ethylene (C2H4): 0.5ppm
Ethane (C2H6): 0.5ppm
Carbon dioxide (CO2): 0.5ppm
Oxygen (O2): 15ppm
TCG: less than 50ppm
Resolution
All gases: 1ppm
Measurement Time: Should be maximum 10 minutes
Retention Time Repeatability: Must be less than 0.0008 Min
Oil volume to be measured at once: 20 ml
Conformity: Configured as per ASTM D3612-C with its latest revision
