PGI INDUSTRIES PTE LTD Block 65A. Jalan Tenteram, St Michael’s Industrial Estate. #05-13. Singapore 328958. Tel: (65) 62943966 Fax: (65) 62569166 (Co. Reg No: 199401153E)

QUALITY SERVICE INTEGRITY IS OUR BUSINESS

Transformer Oil Analysis Report 2016

Client : ABC Singapore Pte Ltd Location : 111 ABC Road. Singapore 123456 Sample Received : 02 Samples

Report Reference Number : S00116M Date Sampled : Monday, March 7, 2016

PGI INDUSTRIES PTE LTD Block 65A. Jalan Tenteram, St Michael’s Industrial Estate. #05-13. Singapore 328958. Tel: (65) 62943966 Fax: (65) 62569166 (Company Registration No: 199401153E)

Result of the diagnostics and recommendation are based on the sample taken at the date of collection and is intended to use as a reference with

no guarantee express or implied against failure. This report must not be reproduced except in full.

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G K Koh

QUALITY SERVICE INTEGRITY IS OUR BUSINESS

Contents Client : ABC Singapore Pte Ltd Location : 111 ABC Road. Singapore 123456 Report Ref : S00116M Date Sampled : Monday, March 7, 2016

Page Description

1 Cover page 2 Content 3 Action Summary 4 Analysis Interpretation Summary 5 Standard Oil Analysis Summary 6 Dissolved Gas Analysis 7 Test Result Limits 8 to 10 TR-AA-02 B.M.T. 11 to 13 T/F 07 B.M.T.

PGI INDUSTRIES PTE LTD Block 65A. Jalan Tenteram, St Michael’s Industrial Estate. #05-13. Singapore 328958. Tel: (65) 62943966 Fax: (65) 62569166 (Company Registration No: 199401153E)

Result of the diagnostics and recommendation are based on the sample taken at the date of collection and is intended to use as a reference with

no guarantee express or implied against failure. This report must not be reproduced except in full.

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G K Koh

QUALITY SERVICE INTEGRITY IS OUR BUSINESS

Analysis Action Summary Client : ABC Singapore Pte Ltd Location : 111 ABC Road. Singapore 123456 Report Ref : S00116M Date Sampled : Monday, March 7, 2016

Transformer Sample Point Analysis Interpretation Action

T/F 07 B.M.T. Total Combustible Gases is high and it should be monitored. Resample within 03 mths.

PGI INDUSTRIES PTE LTD Block 65A. Jalan Tenteram, St Michael’s Industrial Estate. #05-13. Singapore 328958. Tel: (65) 62943966 Fax: (65) 62569166 (Company Registration No: 199401153E)

Result of the diagnostics and recommendation are based on the sample taken at the date of collection and is intended to use as a reference with

no guarantee express or implied against failure. This report must not be reproduced except in full.

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QUALITY SERVICE INTEGRITY IS OUR BUSINESS

Analysis Interpretation Summary Client : ABC Singapore Pte Ltd Location : 111 ABC Road. Singapore 123456 Report Ref : S00116M Date Sampled : Monday, March 7, 2016

Transformer Sample Point

Standard Analysis Interpretation DGA Interpretation Result Interpretation

TR-AA-02 B.M.T. Normal. Normal. Resample 12 mths.

T/F 07 B.M.T. Normal. Total Combustible Gases is high and it should be monitored. Resample within 03 mths.

PGI INDUSTRIES PTE LTD Block 65A. Jalan Tenteram, St Michael’s Industrial Estate. #05-13. Singapore 328958. Tel: (65) 62943966 Fax: (65) 62569166 (Company Registration No: 199401153E)

Result of the diagnostics and recommendation are based on the sample taken at the date of collection and is intended to use as a reference with

no guarantee express or implied against failure. This report must not be reproduced except in full.

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QUALITY SERVICE INTEGRITY IS OUR BUSINESS

Standard Oil Analysis Summary Client : ABC Singapore Pte Ltd Location : 111 ABC Road. Singapore 123456 Report Ref : S00116M Date Sampled : Monday, March 7, 2016

Transformer Sample Point

Breakdown (KV)

Moisture (ppm)

Acidity (mgKOH/g)

Interfacial Tension (mN/m)

Saturation Water-in-Oil (%)

Interpretation

TR-AA-02 B.M.T. 84.40 4.85 0.01 36.76 5 Normal. T/F 07 B.M.T. 79.07 6.00 0.01 35.29 6 Normal.

Font Colour Code Result Indicates Oil In Service Is In "Good" Category Result Indicates Oil In Service Is In "Fair" Category Result Indicates Oil In Service Is In "Poor" Category

PGI INDUSTRIES PTE LTD Block 65A. Jalan Tenteram, St Michael’s Industrial Estate. #05-13. Singapore 328958. Tel: (65) 62943966 Fax: (65) 62569166 (Company Registration No: 199401153E)

Result of the diagnostics and recommendation are based on the sample taken at the date of collection and is intended to use as a reference with

no guarantee express or implied against failure. This report must not be reproduced except in full.

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Page 6 of 13

G K Koh

QUALITY SERVICE INTEGRITY IS OUR BUSINESS

Dissolved Gas Analysis Summary Client : ABC Singapore Pte Ltd Location : 111 ABC Road. Singapore 123456 Report Ref : S00116M Date Sampled : Monday, March 7, 2016

Transformer Sample Point H2 CH4 C2H4 C2H6 C2H2 CO CO2 THCG Com.

Gas Interpretation

TR-AA-02 B.M.T. 52 47 8 159 < 1 46 2256 214 312 Normal.

T/F 07 B.M.T. 1487 36 2 38 < 1 335 3173 76 1898

Total Combustible Gases is high and

it should be monitored.

Font Colour Code DGA Indicates Gas Within Typical Concentration Values DGA Indicates Rate Of Gas &/Or Gas Ratio Within Allowable Limit DGA Indicates Fault Gas

PGI INDUSTRIES PTE LTD Block 65A. Jalan Tenteram, St Michael’s Industrial Estate. #05-13. Singapore 328958. Tel: (65) 62943966 Fax: (65) 62569166 (Company Registration No: 199401153E)

Result of the diagnostics and recommendation are based on the sample taken at the date of collection and is intended to use as a reference with

no guarantee express or implied against failure. This report must not be reproduced except in full.

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Testing Result Limits 1 Average Breakdown Voltage Above 30 KV (Transformer below 72.5KV)

Moisture Content Less than 40 mg/kg (Transformer below 72.5KV) Acidity Less than 0.3 mgKOH/g (Transformer below 72.5KV) Interfacial Tension Above 22 mN/m IEC 60422 Standard is used as GUIDELINES for the above tests concentrations values.

Good: Continue normal sampling Fair: Check other parameters. Poor: Check other Parameters. More Frequent Sampling. Recondition or Replace oil if necessary.

2 Dissolved Gas Analysis Mineral Oil Silicone Oil

Hydrogen Less than 100 ppm Less than 200 ppm Oxygen N/A N/A Nitrogen N/A N/A Methane Less than 120 ppm Less than 100 ppm Carbon Monoxide Less than 500 ppm Less than 3,000 ppm Carbon Dioxide Less than 5,000 ppm Less than 30,000 ppm Ethylene Less than 50 ppm Less than 30 ppm Ethane Less than 65 ppm Less than 30 ppm Acetylene Less than 1 ppm Less than 1 ppm Total Combustible Gases Less than 720 ppm Less than 3,361 ppm IEEE C57.104 & IEEE C57.146 standards are used as a guideline for the Dissolved Gas Analysis concentrations limit & interpretation of gases generated in oil immerse transformers. Typical concentration values shown are used as a GUIDE. Result to be established from trend analysis and faults gas ratios should test values exceed the typical concentration values.

Result of the diagnostics and recommendation are based on the sample taken at the date of collection and is intended to use as a

reference with no guarantee express or implied against failure. This report must not be reproduced except in full.

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Page 8 of 13

G K Koh

PGI Industries Pte Ltd

Transformer Oil Analysis Report Company ABC Singapore Pte Ltd Manufacturer Toshiba Transformer ID TR-AA-02 Year of Manufacturer 1989 Serial Number 111111 Oil Capacity 12000 KG Voltage 66,000 / 22,000 V Sampling Temperature 34.3 ± 1°C Rating 65,400 KVA Date Sampled 6 July, 2015 Sampling Point B.M.T. Report Date 11 July, 2015 Colour Yellow Method of sampling Syringe Lab Reference S00100116M Testing Temperature 25 ± 1°C

Standard Oil Analysis Test Description Unit Limit Result Rating

Breakdown Voltage (IEC 60156) KV > 30 84.40 Good Water Content (IEC60814) mg/kg < 40 4.85 Good Acidity (IEC 62021-1) mgKOH/goil < 0.3 0.01 Good Interfacial Tension (ASTM D971) mN/m > 22 36.76 Good Saturation Water-in-Oil @ 20°C (IEC 60422) % 5 Moderate Insulation

Dissolved Gas Analysis (IEC 60567) Gas in Oil Symbol Limit Result

Hydrogen H2 100 ppm 52 Methane CH4 120 ppm 47 Ethylene C2H4 50 ppm 8 Ethane C2H6 65 ppm 159 Acetylene C2H2 < 1 ppm < 1 Carbon Monoxide CO 500 ppm 46 Carbon Dioxide CO2 5,000 ppm 2256 Oxygen O2 N/A 11799 Nitrogen N2 N/A 64880 Total Gas by Volume N/A 79247 Total Hydrocarbon Gases N/A 214 Total Combustible Gases 720 ppm 312 Font Colour Code

DGA Indicates Gas Within Typical Concentration Values DGA Indicates Rate Of Gas &/Or Gas Ratio Within Allowable Limit DGA Indicates Fault Gas

Analysis Interpretation Standard Oil Analysis Interpretation Oil Quality Index Number is 1838. All Standard Oil Analysis are in Good/Fair Condition.

Dissolved Gas Analysis Interpretation Fluctuations in gas concentrations since last sampled & rate of gases increase within allowable limit. CO2/CO ratio indicates no abnormal cellulose insulation degradation & / or within typical concentration limit.

Results Interpretation Resample within Twelve (12) months.

Result of the diagnostics and recommendation are based on the sample taken at the date of collection and is intended to use as a

reference with no guarantee express or implied against failure. This report must not be reproduced except in full.

Signatory

Page 9 of 13

G K Koh

PGI Industries Pte Ltd

Transformer Oil Analysis Report Company ABC Singapore Pte Ltd Manufacturer Toshiba Transformer ID TR-AA-02 Year of Manufacturer 1989 Serial Number 111111 Oil Capacity 12000 KG Voltage 66,000 / 22,000 V Sampling Temperature 34.3 ± 1°C Rating 65,400 KVA Date Sampled 6 July, 2015 Sampling Point B.M.T. Report Date 11 July, 2015 Colour Yellow Method of sampling Syringe Lab Reference S00100116M Testing Temperature 25 ± 1°C

Sample Reference Historical Date Sampled 03-02-09 19-01-10 07-07-11 16-07-12 24-06-13 07-07-14 06-07-15 Lab Reference S01009 S01210 S18811 S32112 S51913 S73214 S00116M

Standard Oil Analysis Breakdown Voltage (KV) 71.00 72.00 75.22 71.28 70.42 78.42 84.40 Water Content (mg/kg) 4.90 5.30 4.80 3.60 4.85 4.65 4.85 Acidity (mgKOH/goil) 0.02 0.02 0.02 0.01 0.01 0.01 0.01 Interfacial Tension (mN/m) 42.90 42.14 41.58 41.21 39.82 37.58 36.76 Saturation Water-in-Oil @ 20°C (%) N/A N/A N/A 4 5 5 5 Font Colour Code

Standard Test Result Indicates Oil In Service Is In "Good" Category / DGA Indicates Gas Within Typical Concentration Values Standard Test Result Indicates Oil In Service Is In "Fair" Category / DGA Indicates Rate Of Gas &/Or Gas Ratio Within Allowable Limit Standard Test Result Indicates Oil In Service Is In "Poor" Category / DGA Indicates Fault Gas

71.00 72.00 75.22 71.28 70.4278.42 84.40

Breakdown Voltage (KV)

4.90 5.30 4.80 3.60 4.85 4.65 4.85

Water Content (mg/kg)

0.02 0.02 0.020.01 0.01 0.01 0.01

Acidity (mgKOH/goil)

42.90 42.14 41.58 41.21 39.8237.58 36.76

Interfacial Tension (mN/m)

0 0 0

4 5 5 5

Saturation Water-in-Oil @ 20°C (%)

Result of the diagnostics and recommendation are based on the sample taken at the date of collection and is intended to use as a

reference with no guarantee express or implied against failure. This report must not be reproduced except in full.

Signatory

Page 10 of 13

G K Koh

PGI Industries Pte Ltd

Transformer Oil Analysis Report Company ABC Singapore Pte Ltd Manufacturer Toshiba Transformer ID TR-AA-02 Year of Manufacturer 1989 Serial Number 111111 Oil Capacity 12000 KG Voltage 66,000 / 22,000 V Sampling Temperature 34.3 ± 1°C Rating 65,400 KVA Date Sampled 6 July, 2015 Sampling Point B.M.T. Report Date 11 July, 2015 Colour Yellow Method of sampling Syringe Lab Reference S00100116M Testing Temperature 25 ± 1°C

Sample Reference Historical Date Sampled 03-02-09 19-01-10 07-07-11 16-07-12 24-06-13 07-07-14 06-07-15 Lab Reference S01009 S01210 S18811 S32112 S51913 S73214 S00116M

Dissolved Gas Analysis Hydrogen (H2) 32 35 40 41 42 48 52 Methane (CH4) 42 45 41 48 49 48 47 Ethylene (C2H4) 9 10 6 6 7 7 8 Ethane (C2H6) 129 143 158 154 157 152 159 Acetylene (C2H2) < 1 < 1 < 1 < 1 < 1 < 1 < 1 Carbon Monoxide (CO) 27 30 31 35 38 42 46 Carbon Dioxide (CO2) 1043 1636 1818 1838 1930 1965 2256 Oxygen (O2) 7055 1534 12127 7118 19014 5033 11799 Nitrogen (N2) 43385 39347 92088 67059 113164 26133 64880 Gas by Volume 51722 42780 106309 76299 134401 33428 79247 Total Hydrocarbon Gases 180 198 205 208 213 207 214 Total Combustible Gases 239 263 276 284 293 297 312 Font Colour Code

Standard Test Result Indicates Oil In Service Is In "Good" Category / DGA Indicates Gas Within Typical Concentration Values Standard Test Result Indicates Oil In Service Is In "Fair" Category / DGA Indicates Rate Of Gas &/Or Gas Ratio Within Allowable Limit Standard Test Result Indicates Oil In Service Is In "Poor" Category / DGA Indicates Fault Gas

32 35 40 41 42 48 52Hydrogen (H2)

42 45 41 48 49 48 47

Methane (CH4)

9 10 6 6 7 7 8

Ethylene (C2H4)

129 143 158 154 157 152 159Ethane (C2H6)

0 0 0 0 0 0 0

Acetylene (C2H2)

27 30 31 35 38 42 46

Carbon Monoxide (CO)

1043 1636 1818 1838 1930 1965 2256

Carbon Dioxide (CO2)

70551534

121277118

19014

503311799

Oxygen (O2)

43385 3934792088 67059

11316426133 64880

Nitrogen (N2)

Result of the diagnostics and recommendation are based on the sample taken at the date of collection and is intended to use as a

reference with no guarantee express or implied against failure. This report must not be reproduced except in full.

Signatory

Page 11 of 13

G K Koh

PGI Industries Pte Ltd

Transformer Oil Analysis Report Company ABC Singapore Pte Ltd Manufacturer ABB Transformer ID T/F 07 Year of Manufacturer 2014 Serial Number 222222 Oil Capacity 2672 KG Voltage 22,000 / 433 V Sampling Temperature 34.3 ± 1°C Rating 3,500 KVA Date Sampled 6 July, 2015 Sampling Point B.M.T. Report Date 11 July, 2015 Colour Straw Method of sampling Syringe Lab Reference S00100116M Testing Temperature 25 ± 1°C

Standard Oil Analysis Test Description Unit Limit Result Rating

Breakdown Voltage (IEC 60156) KV > 30 79.07 Good Water Content (IEC60814) mg/kg < 40 6.00 Good Acidity (IEC 62021-1) mgKOH/goil < 0.3 0.01 Good Interfacial Tension (ASTM D971) mN/m > 22 35.29 Good Saturation Water-in-Oil @ 20°C (IEC 60422) % 6 Moderate Insulation

Dissolved Gas Analysis (IEC 60567) Gas in Oil Symbol Limit Result

Hydrogen H2 100 ppm 1487 Methane CH4 120 ppm 36 Ethylene C2H4 50 ppm 2 Ethane C2H6 65 ppm 38 Acetylene C2H2 < 1 ppm < 1 Carbon Monoxide CO 500 ppm 335 Carbon Dioxide CO2 5,000 ppm 3173 Oxygen O2 N/A 7442 Nitrogen N2 N/A 35460 Total Gas by Volume N/A 47973 Total Hydrocarbon Gases N/A 76 Total Combustible Gases 720 ppm 1898 Font Colour Code

DGA Indicates Gas Within Typical Concentration Values DGA Indicates Rate Of Gas &/Or Gas Ratio Within Allowable Limit DGA Indicates Fault Gas

Analysis Interpretation Standard Oil Analysis Interpretation Oil Quality Index Number is 1515. All Standard Oil Analysis are in Good/Fair Condition.

Dissolved Gas Analysis Interpretation Even though the Gas Ratios analysis indicate no evidence of incident type faults at the present time, the Total Combustible Gases concentration is high and it should be monitored.

Results Interpretation Resample within Three (03) months.

Result of the diagnostics and recommendation are based on the sample taken at the date of collection and is intended to use as a

reference with no guarantee express or implied against failure. This report must not be reproduced except in full.

Signatory

Page 12 of 13

G K Koh

PGI Industries Pte Ltd

Transformer Oil Analysis Report Company ABC Singapore Pte Ltd Manufacturer ABB Transformer ID T/F 07 Year of Manufacturer 2014 Serial Number 222222 Oil Capacity 2672 KG Voltage 22,000 / 433 V Sampling Temperature 34.3 ± 1°C Rating 3,500 KVA Date Sampled 6 July, 2015 Sampling Point B.M.T. Report Date 11 July, 2015 Colour Straw Method of sampling Syringe Lab Reference S00100116M Testing Temperature 25 ± 1°C

Sample Reference Historical Date Sampled N/A N/A N/A 16-07-12 24-06-13 07-07-14 06-07-15 Lab Reference N/A N/A N/A S32112 S51913 S73214 S00116M

Standard Oil Analysis Breakdown Voltage (KV) N/A N/A N/A 82.22 73.00 83.55 79.07 Water Content (mg/kg) N/A N/A N/A 5.60 5.10 6.15 6.00 Acidity (mgKOH/goil) N/A N/A N/A 0.02 0.01 0.01 0.01 Interfacial Tension (mN/m) N/A N/A N/A 38.35 37.61 36.51 35.29 Saturation Water-in-Oil @ 20°C (%) N/A N/A N/A 6 5 6 6 Font Colour Code

Standard Test Result Indicates Oil In Service Is In "Good" Category / DGA Indicates Gas Within Typical Concentration Values Standard Test Result Indicates Oil In Service Is In "Fair" Category / DGA Indicates Rate Of Gas &/Or Gas Ratio Within Allowable Limit Standard Test Result Indicates Oil In Service Is In "Poor" Category / DGA Indicates Fault Gas

0.00 0.00 0.00

82.22 73.00 83.55 79.07

Breakdown Voltage (KV)

0.00 0.00 0.00

5.60 5.10 6.15 6.00

Water Content (mg/kg)

0.00 0.00 0.00

0.020.01 0.01 0.01

Acidity (mgKOH/goil)

0.00 0.00 0.00

38.35 37.61 36.51 35.29

Interfacial Tension (mN/m)

0 0 0

6 5 6 6

Saturation Water-in-Oil @ 20°C (%)

Result of the diagnostics and recommendation are based on the sample taken at the date of collection and is intended to use as a

reference with no guarantee express or implied against failure. This report must not be reproduced except in full.

Signatory

Page 13 of 13

G K Koh

PGI Industries Pte Ltd

Transformer Oil Analysis Report Company ABC Singapore Pte Ltd Manufacturer ABB Transformer ID T/F 07 Year of Manufacturer 2014 Serial Number 222222 Oil Capacity 2672 KG Voltage 22,000 / 433 V Sampling Temperature 34.3 ± 1°C Rating 3,500 KVA Date Sampled 6 July, 2015 Sampling Point B.M.T. Report Date 11 July, 2015 Colour Straw Method of sampling Syringe Lab Reference S00100116M Testing Temperature 25 ± 1°C

Sample Reference Historical Date Sampled N/A N/A N/A 16-07-12 24-06-13 07-07-14 06-07-15 Lab Reference N/A N/A N/A S32112 S51913 S73214 S00116M

Dissolved Gas Analysis Hydrogen (H2) N/A N/A N/A 281 922 1480 1487 Methane (CH4) N/A N/A N/A 11 21 36 36 Ethylene (C2H4) N/A N/A N/A 5 5 2 2 Ethane (C2H6) N/A N/A N/A 22 30 36 38 Acetylene (C2H2) N/A N/A N/A < 1 < 1 < 1 < 1 Carbon Monoxide (CO) N/A N/A N/A 180 177 279 335 Carbon Dioxide (CO2) N/A N/A N/A 2109 2634 3095 3173 Oxygen (O2) N/A N/A N/A 25974 1936 5531 7442 Nitrogen (N2) N/A N/A N/A 85275 29879 42377 35460 Gas by Volume N/A N/A N/A 113857 35604 52836 47973 Total Hydrocarbon Gases N/A N/A N/A 38 56 74 76 Total Combustible Gases N/A N/A N/A 499 1155 1833 1898 Font Colour Code

Standard Test Result Indicates Oil In Service Is In "Good" Category / DGA Indicates Gas Within Typical Concentration Values Standard Test Result Indicates Oil In Service Is In "Fair" Category / DGA Indicates Rate Of Gas &/Or Gas Ratio Within Allowable Limit Standard Test Result Indicates Oil In Service Is In "Poor" Category / DGA Indicates Fault Gas

Re

281922

1480 1487

Hydrogen (H2)

0 0 011

2136 36

Methane (CH4)

0 0 0

5 52 2

Ethylene (C2H4)

0 0 022 30 36 38

Ethane (C2H6)

0 0 0 0 0 0 0

Acetylene (C2H2)

180 177279 335

Carbon Monoxide (CO)

2109 2634 3095 3173

Carbon Dioxide (CO2)

259741936 5531 7442

Oxygen (O2)

0 0 0

85275

29879 42377 35460

Nitrogen (N2)