Tullow Co Carlow Ireland Tel: +353 (0) 59 9152881 Fax: +353 (0) 59 9152886 Email:
[email protected] Web-page: www.tellab.ie
T
TRANSFORMER OIL ANALYSIS Lab. No:
123456
Customer:
Clients Name
Address
Ireland
Depot Location:
Dublin
Report sent to:
Electrical Manager
Sample Details:
Trafo 7
Date Taken:
02.01.2008
Station Name:
Sub 101
Date Received:
09.01.2008
Serial Number:
97 1 5320
Report Date:
13.02.2008
Sample Point:
Bottom of Main Tank
Transformer Number:
T7
Dissolved Gas Analysis
Determinands Hydrogen (ppm)
Physical Tests
Result 820
Determinands Colour
Result 0 - 0.5
Oxygen (ppm)
10525
Total Acid Number (mg KOH/g)
0.05
Nitrogen (ppm)
34654
Moisture (ppm)
11.5
Methane (ppm)
12
Breakdown voltage (kV)
44.0
Carbon Monoxide (ppm)
6.5
Appearance
Carbon Dioxide (ppm)
453
Odour
Ethene (ppm)
0.4
PCB
Ethane (ppm)
0.5
Acetylene (ppm)
ND
Gas Content %
4.65
Clear, pale yellow with slight tinge of blue Slight 2.0
DGA suggests partial discharges of high energy density. Hydrogen tending to a high level, all other gas levels are low and acceptable. No action advised at this time, advise resample in 6 months and monitor. Oil condition satisfactory for continued use.
ND = Not Detected
Approved by:
Date: 13.02.2008
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