Test Report

For

On Line Partial Discharge Testing (7th Phase) of

Motors
At
GUJARAT REFINERY

IOCL, GUJARAT

Document ID : RPT_IOCL_GR_MT_CM_TST_V004

Navitus Controls & Equipment Pvt. Ltd

Prepared by : Incubation-18, WEBEL HRDC Building,
P-1 Taratala Road, Kolkata– 700068

Ref : W/O No. 26807898 Dated: 06/02/21

Release Date: 7-May-23

This document is for restricted circulation. No part of this document shall be reproduced, stored in retrieval system or transmitted
in any form or by any means – recording, photocopying, electronic and mechanical without prior permission of NCEPL.
 Test Report for On Line Partial Discharge Testing at IOCL Gujarat
Refinery (WO : 26807898 Dated: 06/02/21)

Reference:

Purchase Order No & Date 26807898 Dated 06/02/21

Tender No JC20ELT221

Test conducted Date 20/03/2023-28/03/2023

Test conducted by Mr. Arindam Chatterjee / Mr. Subhajit Sen

Report Creation Date 7-May-23

Report prepared by Mr. Subhajit Sen/ Mr. Arindam Chatterjee

Report Reviewed by Mr. Biplab Ghosh

Customer Details:

Customer Indian Oil Corporation Limited (IOCL), Gujarat

Refinery

Testing Location Motors at various substations

Report Creation Date 7-May-23

Customer Officers/ Mr. Sumanth Banavath/ Mr. Manish Prakash/ Mr. R. R.

Engineers involved Reddy

Kind Attn. Mr. R.R. Reddy/ Mr. S. L. Bangotra

 Test Report for On Line Partial Discharge Testing at IOCL Gujarat
Refinery (WO : 26807898 Dated: 06/02/21)

Contents
1 Executive Summary ................................................................................................... 6

2 Background & Objective ............................................................................................ 7

3 Methodology ............................................................................................................... 8
a) PD-74 ..................................................................................................................................................................... 8
b) PD-30 ..................................................................................................................................................................... 8
c) Prycam Portable ..................................................................................................................................................... 8
d) PD-13 ..................................................................................................................................................................... 8

4 Summary Report & Analysis: ..................................................................................... 9

5 Annexure-III (Detailed Analysis- Motors) ................................................................. 12

5.1. SS-38 604-PM-04B ............................................................................................... 12

5.2. SS-38 2041-KM-103A ........................................................................................... 13

5.3. SS-38 2041-PM-102B ........................................................................................... 14

5.4. SS-38 2091-KM-01A ............................................................................................. 15

5.5. SS-38 2091-PM-01A ............................................................................................. 18

5.6. SS-38 2091-PM-02A ............................................................................................. 20

5.7. SS-38 2091-PM-04A ............................................................................................. 21

5.8. SS-38 2091-PM-07B ............................................................................................. 22

5.9. SS-38 2092-PM-01A ............................................................................................. 23

5.10. SS-38 2092-KM-01A ............................................................................................. 24

5.11. SS-38 2097A-PM-01A ........................................................................................... 25

5.12. SS-38 2097A-PM-03A ........................................................................................... 26

5.13. SS-38 2097B-PM-01A ........................................................................................... 27

5.14. SS-38 2097B-PM-03A ........................................................................................... 28

5.15. SS-38 2097B-PM-04A ........................................................................................... 29

5.16. SS-38 2097B-PM-04C ........................................................................................... 30

5.17. SS-38 2111-KM-01C ............................................................................................. 31

5.18. SS-38 2111-PM-10B ............................................................................................. 32

5.19. SS-38 2111-PM-10C ............................................................................................. 33

5.20. SS-38 2112-PM-05B ............................................................................................. 34

5.21. SS-38 2112-PM-10A ............................................................................................. 35

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5.22. SS-38 2113-KM-01B ............................................................................................. 36

5.23. SS-37 2093-PM-01B ............................................................................................. 37

5.24. SS-37 2093-PM-03B ............................................................................................. 38

5.25. SS-37 2093-PM-13A ............................................................................................. 39

5.26. SS-37 2093-KM-02A ............................................................................................. 40

5.27. SS-37 2093-X05-KM-01A ...................................................................................... 42

5.28. SS-37 2093-PM-35A ............................................................................................. 44

5.29. SS-37 2095-FD-01A .............................................................................................. 45

5.30. SS-37 2095-FD-01B .............................................................................................. 46

5.31. SS-37 2095-FD-02A .............................................................................................. 47

5.32. SS-37 2095-FD-02B .............................................................................................. 48

5.33. SS-37 2095-ID-01 ................................................................................................. 49

5.34. SS-37 2095-ID-02 ................................................................................................. 50

5.35. SS-37 2095-PM-01C ............................................................................................. 51

5.36. SS-37 2095-PM-05B ............................................................................................. 52

5.37. SS-37 2095-PM-06A ............................................................................................. 53

5.38. SS-37 2095-PM-08A ............................................................................................. 54

5.39. SS-37 2095-PM-11B ............................................................................................. 57

5.40. SS-37 2095-PM-13B ............................................................................................. 58

5.41. SS-37 2095-PM-29B ............................................................................................. 59

5.42. SS-37 2095-PM-31B ............................................................................................. 60

5.43. SS-37 2117-PM-01A ............................................................................................. 61

5.44. SS-37 2117-PM-01C ............................................................................................. 62

5.45. SS-37 2117-PM-01J .............................................................................................. 63

5.46. SS-36 14-PA-CF-001A........................................................................................... 64

5.47. SS-36 14-PA-CF-014B........................................................................................... 65

5.48. SS-36 14-KAM-RP-002A ....................................................................................... 66

5.49. SS-36 15-KAM-RP-002B ....................................................................................... 67

5.50. SS-36 15-KAM-RP-002C ....................................................................................... 68

5.51. SS-36 15-PA-CF-001A........................................................................................... 69

5.52. SS-36 2061-KM-001A ........................................................................................... 70

5.53. SS-36 2061-KM-002A ........................................................................................... 71

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5.54. SS-36 2061-PM-01A ............................................................................................. 72

5.55. SS-36 2071-KM-001 ............................................................................................. 73

5.56. SS-36 2071-PM-02A ............................................................................................. 75

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 Test Report for On Line Partial Discharge Testing at IOCL Gujarat
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1 Executive Summary
Background:

Navitus Controls & Equipment (P) Ltd (NCEPL) received a contract from IOCL Gujarat refinery for online partial
discharge monitoring of 33 kV cables, HT transformer & motor termination box, Transformer main tank, 33 kV,
11 kV, 6.6 kV switchgears. The contract has defined the test procedures and also mentioned the type of
sensors that are to be used for testing each of the target assets. However, NCEPL not only complied with the
stated procedures and the type of sensors specified against each type of the asset but also deployed additional
sensors to achieve better sensitivity for the tests performed. The following table describes the sensors specified
in the contract and the additional tests performed by NCEPL team for achieving higher sensitivity and data
comparison among various sensors for better accuracy.

Type of Tests performed Additional tests Remarks

asset as per SOW in the performed by
tender NCEPL
Motor AA & TeV test EMI test Motor terminals should be tested with
terminals EMI sensors because the natural noise
near a Motor Terminal impacts the
accuracy of the AA sensors

Test summary & criticality analysis:

th
The project envisages repeated testing of the target assets based on their criticality. In the 7 phase of the
project NCEPL tested the following assets.

 Motor Terminals- 56

NCEPL team has followed a proven testing methodology and has collected the On Line PD data of these target
assets for detail analysis. Depending on the outcome of the analysis, NCEPL team has classified the assets
into different categories based on their criticalities. NCEPL team has also provided specific recommendations
against each type of criticality. Recommendations provided are based upon NCEPL experience against various
types of discharges.

The progression of PD is a complex activity and depends on many factors making it almost impossible to
predict the time to failure for these PD pulses. It is through repeated testing IOCL has to determine the trend
analysis and a fast-increasing trend is what is most critical and requires immediate intervention. Hence it is
helpful to have the failure history of the target assets before any On Line PD Monitoring is performed on an
asset.

The assets with criticality ORANGE should be immediately inspected. The detailed recommendations were
provided in the detailed report later in the document. However, the criticality marked in YELLOW shall also be
inspected as per the recommendations. Failure history shall be shared for more accurate criticality assignment.

Conclusion:
th
NCEPL team has completed the 7 phase of the testing and shall undertake the next phase in close
coordination with the IOCL team. Meanwhile, NCEPL urges IOCL to open the assets marked critical and look
for physical marks/ traces of PD in these assets. If found these deteriorations need to be fixed and the assets
can be re-tested after that.

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Test Report for On Line Partial Discharge Testing at IOCL Gujarat
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2 Background & Objective

Navitus Controls & Equipment (P) Ltd (NCEPL) received an order from M/S India Oil Corporation
Limited, Gujarat refinery for the online partial discharge testing of the following:
1. Condition assessment of HT 11/33 kV switchgears- 1200 EA
2. Localization of PD activity in 11/33kV switchgears- 100 EA
3. Online PD testing of 6.6kV switchgears- 1848 EA
4. Localization of PD activity in 6.6 kV switchgears- 50 EA
5. Online PD testing of 33 kV cables- 880 EA
6. Cables, cable joints & end termination- 360 EA
7. Diagnostic testing of HT cables- 20 EA
8. 72 hrs continuous monitoring of PD in critical cables- 10 EA
9. Online PD testing of transformer terminal box & motor terminal box- 2240 EA
10. PD monitoring of transformer main tank through UHF drain valve sensors- 10 EA
11. Diagnostic testing of transformers- 8 EA
12. Condition monitoring of HT/ LT motors- 5 EA
13. Diagnostic testing of VCBs of HT panels- 10 EA
Testing modalities were defined by IOCL in the tender as follows:
1. For 11 & 33kV switchgears, PD monitoring shall be done in UHF range using UHF sensors.
2. For PD localization, HFCT/ UHF/ Ultrasonic/ offline PD test shall be carried out for locating the PD in
the switchgear (33 kV & 11kV)
3. For 6.6 kV switchgears airborne acoustic & TeV technology shall be used for PD identification &
localization.
4. For 33kV cables, cable terminations and the whole cable shall be tested through EMI/ HFCT based
sensors & TeV or UHF sensors at the terminals.
5. Critical cables shall be subjected to 72 hrs of continuous monitoring.
6. 6.6 kV transformer terminal box & motor terminal box shall be monitored using air-borne acoustic &
TeV. PD testing has also been done using EMI based sensors for HT motors.
7. PD identification inside the transformer tank shall be done through UHF drain valve sensors.
8. Location of PD in transformers shall be done through four acoustic & one HFCT sensor technology.

NCEPL engineers used multiple On Line PD Testing equipment to ascertain the test results as per the
technology requirement guided in the work order/ tender. The equipment that were used are:-

 PD-30 (TeV & Ultrasound measurement device)

 PD 74 (Acoustic, UHF Rod & Guide Antenna, TEV,HFCT)
 Pry-CAM Portable (EMI Based Antenna/Sensor)

 PD-13 (Acoustic & HFCT based device for location analysis in switchgears

 PD-71 (UHF PD monitoring & localizing system)

 UHF drain valve sensors

 Failure history of each asset tested (if any) shall be provided by IOCL for more accurate
prediction. The failure history (or previous PD test readings) of the assets shall be mandatory
for providing recommendations after the first round of test.
 To conclude NCEPL would like to thank IOCL for giving this opportunity to undertake the On
Line PD Testing for their critical Cables/ Transformers & Switchgears.
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 Test Report for On Line Partial Discharge Testing at IOCL Gujarat
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3 Methodology

NCEPL deployed four partial discharge monitoring devices for comprehensive PD monitoring of the
assets listed in the work order of IOCL to NCEPL. The devices are:-
a) PD-74
b) PD-30
c) Prycam portable
d) Prycam Grids
e) PD-13
f) PD-71

a) PD-74
PD-74 is an HFCT based Cable PD monitoring device. It has three channels viz: Acoustic channel,
High frequency channel & Ultra high frequency channel. It has the following features:-
 Real-time PD measurement with provision for Acoustic, HF & UHF range of measurements
in one single unit.
 Provision for both Wideband & Narrow band spectrum measurement & analysis.
 PRPD, 3D & PD Expert features are available in the unit itself. No requirement of laptop at
site as the unit has a well-defined HMI.
 Apart from cables it can also be used for PD measurements in GIS, AIS & HV Switchboards.

b) PD-30
The PD-30 has the following features:-
 PD-30 is a TeV& Acoustic measuring instrument.
 Data archiving capability in the acquisition unit itself. So it can be easily handled at site for
data acquisition & viewing.
 PD-30 is suitable for Cables & HT switchgear.

c) Prycam Portable
The Prycam portable is an EMI antenna based PD monitoring device. It captures PD signals in high
frequency range. The device has the following features:-
 Traffic light indication (Green/Yellow/Red) in the power cycle providing an easy
understanding of the health of the asset (Basic mode).
 PRPD, Spectrum, Pulse characteristics using waveform analysis, PRPD data filter, Pulse
count, intensity & amplitude for more refined and detailed analysis if the Traffic light is Red
(Advanced/Premium mode).
 Data saving option along with the feature for uploading the data in Prysmian cloud for data
retrieving & analysis at a later stage using any i-pad with Prycam software installed with all
the data & photographs from any location.

d) PD-13

PD-13 has the following features:-

 Four acoustic and one HF based transformer PD monitoring system.
 Four acoustic sensors are installed and dynamically moved across the transformer wall to identify
acoustic discharge (mechanical/ electrical) inside the transformer.
 HFCT installed at the transformer earth path is gives a confirmation of the presence of electrical
PD.
 PD location inside the tank can be identified.

NCEPL followed testing methodology at stipulated in the tender and scope of work from IOCL.

However, NCEPL also performed additional tests to diagnose/ corroborate a defect once some suspicious PD
activity is observed from the tests stipulated by IOCL.
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 Test Report for On Line Partial Discharge Testing at IOCL Gujarat
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4 Summary Report & Analysis:

MOTORS
Reading
Sl. No. Name Pattern (PD/Noise) Observation
mV PPS MHz
Internal Surface
1 SS-38 604-PM-04B 90.00 435 6.25 Moderately High Critical PD
Discharge
2 SS-38 2041-KM-103A 28.06 3364 21.88 Noise No Critical PD
3 SS-38 2041-PM-102B 90.00 63 20.31 Surface Discharge Moderate Critical PD
SS-38 2091-KM-01A C1 125.0 81 37.50 Noise No Critical PD
4 SS-38 2091-KM-01A C2 82.20 335 18.75 Noise No Critical PD
SS-38 2091-KM-01A C3 125.0 228 19.53 Noise No Critical PD
SS-38 2091-PM-01A C1 13.39 843 6.25 Noise No Critical PD
5
SS-38 2091-PM-01A C2 13.39 1049 6.25 Noise No Critical PD

6 SS-38 2091-PM-02A 14.55 1377 15.63 Noise No Critical PD

7 SS-38 2091-PM-04A 17.00 1330 21.09 Noise No Critical PD
8 SS-38 2091-PM-07B 17.00 1110 18.75 Noise No Critical PD
9 SS-38 2092-KM-01A 13.79 3455 0.781 Noise No Critical PD
10 SS-38 2092-PM-01A 20.28 6756 0.781 Noise No Critical PD
11 SS-38 2097A-PM-01A 932.0 4322 0.781 Noise No Critical PD
12 SS-38 2097A-PM-03A 14.19 313 25 Corona Discharge Moderately Low Critical PD
13 SS-38 2097B-PM-01A 17.00 1289 18.75 Noise No Critical PD
14 SS-38 2097B-PM-03A 13.42 3822 18.75 Noise No Critical PD
15 SS-38 2097B-PM-04A 27.54 367 8.59 Noise No Critical PD
16 SS-38 2097B-PM-04C 13.42 3822 18.75 Noise No Critical PD
17 SS-38 2111-KM-01C 277.4 5750 0.781 Noise No Critical PD
18 SS-38 2111-PM-10B 15.80 4823 0.781 Noise No Critical PD
19 SS-38 2111-PM-10C 147.4 3367 18.75 Noise No Critical PD
20 SS-38 2112-PM-05B 90.94 5912 18.75 Noise No Critical PD
21 SS-38 2112-PM-10A 53.92 3822 18.75 Noise No Critical PD

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22 SS-38 2113-KM-01B 24.00 3698 0.781 Noise No Critical PD
23 SS-37 2093-PM-01B 17.00 1324 15.63 Noise No Critical PD
24 SS-37 2093-PM-03B 30.14 235 30.47 Corona Discharge Moderately Low Critical PD
25 SS-37 2093-PM-13A 110.2 205 7.03 Surface Discharge Moderate Critical PD
Possible surface
SS-37 2093-KM-02A C1 64.00 2022 4.69 Low Critical PD
Discharge
26
Possible surface
SS-37 2093-KM-02A C2 57.95 47 4.69 Low Critical PD
Discharge
SS 37 2093-X05-KM-01A C1 17.00 1298 0.781 Noise No Critical PD
27
SS 37 2093-X05-KM-01A C2 57.95 1440 4.69 Noise No Critical PD
28 SS-37 2093-PM-35A 125.00 311 1.56 Possible slot discharge Moderately Critical PD
Internal Surface Moderately High Critical PD
29 SS-37 2095-FD-01A 128.1 89 5.47
Discharge
Internal Surface Moderately High Critical PD
30 SS-37 2095-FD-01B 64.00 241 43.75
Discharge
Internal Surface Moderately High Critical PD
31 SS-37 2095-FD-02A 125.0 431 34.38
Discharge
Internal Surface Moderately High Critical PD
32 SS-37 2095-FD-02B 99.41 396 7.03
Discharge
33 SS-37 2095-ID-01 401.9 479 21.09 Internal Discharge Moderately Critical PD
34 SS-37 2095-ID-02 16.44 2907 3.13 Noise No Critical PD
35 SS-37 2095-PM-01C 4.685 2317 13.28 Noise No Critical PD
36 SS-37 2095-PM-05B 604.0 19 3.91 Surface Discharge Moderate Critical PD
37 SS-37 2095-PM-06A 59.97 139 3.13 Internal Discharge Moderate Critical PD
SS-37 2095-PM-08A C1 17.00 1994 3.91 Noise No Critical PD
38 SS-37 2095-PM-08A C2 17.00 4766 3.13 Noise No Critical PD
SS-37 2095-PM-08A C3 36.76 89 7.03 Noise No Critical PD
39 SS-37 2095-PM-11B 14.17 5918 13.28 Noise No Critical PD
40 SS-37 2095-PM-13B 17.00 46 17.97 Surface Discharge Low Critical PD
41 SS-37 2095-PM-29B 15.26 3749 13.28 Noise No Critical PD
42 SS-37 2095-PM-31B 11.24 572 13.28 Noise No Critical PD
43 SS-37 2117-PM-01A 80.08 274 3.91 Surface Discharge Moderate Critical PD
44 SS-37 2117-PM-01C 175.0 1018 4.69 Internal Surface Moderately High Critical PD

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Discharge
45 SS-37 2117-PM-01J 19.84 1797 19.53 Noise No Critical PD
46 SS-36 14-PA-CF-001A 21.73 1036 7.03 Noise No Critical PD
47 SS-36 14-PA-CF-014B 33.00 17 12.50 Surface Discharge Moderately Low Critical PD
48 SS-36 14-KAM-RP-002A 17.00 857 7.03 Noise No Critical PD
49 SS-36 15-KAM-RP-002B 24.00 1010 7.03 Noise No Critical PD
50 SS-36 15-KAM-RP-002C 89.29 74 2.34 Surface Discharge Moderate Critical PD
51 SS-36 15-PA-CF-001A 21.92 2897 7.03 Noise No Critical PD
52 SS-36 2061-K-001A 24.00 1097 3.13 Possible surface Discharge Moderately Low Critical PD
53 SS-36 2061-K-002A 16.20 625 7.03 Noise No Critical PD
54 SS-36 2061-P-01A 237.3 132 4.69 Internal Discharge Moderately High Critical PD
SS-36 2071-K-001 C1 64.00 571 22.66 Possible Corona Discharge Moderately Low Critical PD
55
SS-36 2071-K-001 C2 33.00 615 22.66 Possible Corona Discharge Moderately Low Critical PD
56 SS-36 2071-P-02A 125.0 772 5.47 Corona Discharge Moderately Low Critical PD

PD Pattern Low Moderately Low Moderate Moderately High High

Noise/ External Interference Minor Surface Discharge/ Surface discharge/ Minor Internal Surface Internal Discharge
Corona Internal Surface Discharge Discharge/ Minor
Internal Discharge

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5 Annexure-III (Detailed Analysis- Motors)

5.1. SS-38 604-PM-04B

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Internal Surface Discharge

Amplitude 90.00 mV
Frequency Spectrum 6.25 MHz
PPS 435

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5.2. SS-38 2041-KM-103A

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Noise
Amplitude 28.06 mV
Frequency Spectrum 21.88 MHz
PPS 3364

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5.3. SS-38 2041-PM-102B

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Surface Discharge

Amplitude 90.00 mV
Frequency Spectrum 20.31 MHz
PPS 63

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5.4. SS-38 2091-KM-01A

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Cable-1
Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Noise
Amplitude 125 mV
Frequency Spectrum 37.50 MHz
PPS 81

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Cable-2
Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Noise
Amplitude 82.20 mV
Frequency Spectrum 18.75 MHz
PPS 335

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Cable-3
Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Noise
Amplitude 125 mV
Frequency Spectrum 19.53 MHz
PPS 288

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5.5. SS-38 2091-PM-01A

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Cable-1
Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Noise
Amplitude 13.39 mV
Frequency Spectrum 6.25 MHz
PPS 843

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Cable-2
Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Noise
Amplitude 13.39 mV
Frequency Spectrum 6.25 MHz
PPS 1049

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5.6. SS-38 2091-PM-02A

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Noise
Amplitude 14.55 mV
Frequency Spectrum 15.63 MHz
PPS 1377

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5.7. SS-38 2091-PM-04A

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Noise
Amplitude 17.00 mV
Frequency Spectrum 21.09 MHz
PPS 1330

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5.8. SS-38 2091-PM-07B

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Noise
Amplitude 17.00 mV
Frequency Spectrum 18.75 MHz
PPS 1110

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5.9. SS-38 2092-PM-01A

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Noise
Amplitude 20.28 mV
Frequency Spectrum 0.781 MHz
PPS 6756

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5.10. SS-38 2092-KM-01A

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Noise
Amplitude 13.79 mV
Frequency Spectrum 0.781 MHz
PPS 3455

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5.11. SS-38 2097A-PM-01A

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Noise
Amplitude 932.0 mV
Frequency Spectrum 0.781 MHz
PPS 4322

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5.12. SS-38 2097A-PM-03A

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Corona Discharge

Amplitude 14.19 mV
Frequency Spectrum 25 MHz
PPS 313

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Test Report for On Line Partial Discharge Testing at IOCL Gujarat

Refinery (WO No.- 26807898 Dated: 06/02/21

5.13. SS-38 2097B-PM-01A

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Noise
Amplitude 17.00 mV
Frequency Spectrum 18.75 MHz
PPS 1289

Page 27 of 75
at

Test Report for On Line Partial Discharge Testing at IOCL Gujarat

Refinery (WO No.- 26807898 Dated: 06/02/21

5.14. SS-38 2097B-PM-03A

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Noise
Amplitude 13.42 mV
Frequency Spectrum 18.75 MHz
PPS 3822

Page 28 of 75
at

Test Report for On Line Partial Discharge Testing at IOCL Gujarat

Refinery (WO No.- 26807898 Dated: 06/02/21

5.15. SS-38 2097B-PM-04A

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Noise
Amplitude 27.54 mV
Frequency Spectrum 8.59 MHz
PPS 367

Page 29 of 75
at

Test Report for On Line Partial Discharge Testing at IOCL Gujarat

Refinery (WO No.- 26807898 Dated: 06/02/21

5.16. SS-38 2097B-PM-04C

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Noise
Amplitude 13.42 mV
Frequency Spectrum 18.75 MHz
PPS 3822

Page 30 of 75
at

Test Report for On Line Partial Discharge Testing at IOCL Gujarat

Refinery (WO No.- 26807898 Dated: 06/02/21

5.17. SS-38 2111-KM-01C

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Noise
Amplitude 277.4 mV
Frequency Spectrum 0.781 MHz
PPS 5750

Page 31 of 75
at

Test Report for On Line Partial Discharge Testing at IOCL Gujarat

Refinery (WO No.- 26807898 Dated: 06/02/21

5.18. SS-38 2111-PM-10B

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Noise
Amplitude 15.80 mV
Frequency Spectrum 0.781 MHz
PPS 4823

Page 32 of 75
at

Test Report for On Line Partial Discharge Testing at IOCL Gujarat

Refinery (WO No.- 26807898 Dated: 06/02/21

5.19. SS-38 2111-PM-10C

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Noise
Amplitude 147.4 mV
Frequency Spectrum 18.75 MHz
PPS 3367

Page 33 of 75
at

Test Report for On Line Partial Discharge Testing at IOCL Gujarat

Refinery (WO No.- 26807898 Dated: 06/02/21

5.20. SS-38 2112-PM-05B

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Noise
Amplitude 90.94 mV
Frequency Spectrum 18.75 MHz
PPS 5912

Page 34 of 75
at

Test Report for On Line Partial Discharge Testing at IOCL Gujarat

Refinery (WO No.- 26807898 Dated: 06/02/21

5.21. SS-38 2112-PM-10A

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern External Noise

Amplitude 53.92 mV
Frequency Spectrum 18.75 MHz
PPS 3822

Page 35 of 75
at

Test Report for On Line Partial Discharge Testing at IOCL Gujarat

Refinery (WO No.- 26807898 Dated: 06/02/21

5.22. SS-38 2113-KM-01B

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Noise
Amplitude 24.00 mV
Frequency Spectrum 0.781 MHz
PPS 3698

Page 36 of 75
at

Test Report for On Line Partial Discharge Testing at IOCL Gujarat

Refinery (WO No.- 26807898 Dated: 06/02/21

5.23. SS-37 2093-PM-01B

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Noise
Amplitude 17.00 mV
Frequency Spectrum 15.63 MHz
PPS 1324

Page 37 of 75
at

Test Report for On Line Partial Discharge Testing at IOCL Gujarat

Refinery (WO No.- 26807898 Dated: 06/02/21

5.24. SS-37 2093-PM-03B

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Corona Discharge

Amplitude 30.14 mV
Frequency Spectrum 30.47 MHz
PPS 235

Page 38 of 75
at

Test Report for On Line Partial Discharge Testing at IOCL Gujarat

Refinery (WO No.- 26807898 Dated: 06/02/21

5.25. SS-37 2093-PM-13A

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Surface Discharge

Amplitude 110.2 mV
Frequency Spectrum 7.03 MHz
PPS 205

Page 39 of 75
at

Test Report for On Line Partial Discharge Testing at IOCL Gujarat

Refinery (WO No.- 26807898 Dated: 06/02/21

5.26. SS-37 2093-KM-02A

Test has been conducted through EMI based device in advanced mode. The result is as follows:-
Cable-1
Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Possible Surface Discharge

Amplitude 64.00 mV
Frequency Spectrum 4.69 MHz
PPS 2022

Page 40 of 75
at

Test Report for On Line Partial Discharge Testing at IOCL Gujarat

Refinery (WO No.- 26807898 Dated: 06/02/21

Cable-2
Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Possible Surface Discharge

Amplitude 57.95 mV
Frequency Spectrum 4.69 MHz
PPS 47

Page 41 of 75
at

Test Report for On Line Partial Discharge Testing at IOCL Gujarat

Refinery (WO No.- 26807898 Dated: 06/02/21

5.27. SS-37 2093-X05-KM-01A

Test has been conducted through EMI based device in advanced mode. The result is as follows:-
Cable-1
Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Noise
Amplitude 17.00 mV
Frequency Spectrum 0.781 MHz
PPS 1298

Page 42 of 75
at

Test Report for On Line Partial Discharge Testing at IOCL Gujarat

Refinery (WO No.- 26807898 Dated: 06/02/21

Cable-2
Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Noise
Amplitude 57.95 mV
Frequency Spectrum 4.69 MHz
PPS 1440

Page 43 of 75
at

Test Report for On Line Partial Discharge Testing at IOCL Gujarat

Refinery (WO No.- 26807898 Dated: 06/02/21

5.28. SS-37 2093-PM-35A

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Possible Slot Discharge

Amplitude 125.00 mV
Frequency Spectrum 1.56 MHz
PPS 311

Page 44 of 75
at

Test Report for On Line Partial Discharge Testing at IOCL Gujarat

Refinery (WO No.- 26807898 Dated: 06/02/21

5.29. SS-37 2095-FD-01A

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Internal Surface Discharge

Amplitude 128.1 mV
Frequency Spectrum 5.47 MHz
PPS 89

Page 45 of 75
at

Test Report for On Line Partial Discharge Testing at IOCL Gujarat

Refinery (WO No.- 26807898 Dated: 06/02/21

5.30. SS-37 2095-FD-01B

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Internal Surface Discharge

Amplitude 64.00 mV
Frequency Spectrum 43.75 MHz
PPS 241

Page 46 of 75
at

Test Report for On Line Partial Discharge Testing at IOCL Gujarat

Refinery (WO No.- 26807898 Dated: 06/02/21

5.31. SS-37 2095-FD-02A

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Internal Surface Discharge

Amplitude 125.0 mV
Frequency Spectrum 34.38 MHz
PPS 431

Page 47 of 75
at

Test Report for On Line Partial Discharge Testing at IOCL Gujarat

Refinery (WO No.- 26807898 Dated: 06/02/21

5.32. SS-37 2095-FD-02B

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Internal Surface Discharge

Amplitude 99.41 mV
Frequency Spectrum 7.03 MHz
PPS 396

Page 48 of 75
at

Test Report for On Line Partial Discharge Testing at IOCL Gujarat

Refinery (WO No.- 26807898 Dated: 06/02/21

5.33. SS-37 2095-ID-01

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Internal Discharge

Amplitude 401.9 mV
Frequency Spectrum 21.09 MHz
PPS 479

Page 49 of 75
at

Test Report for On Line Partial Discharge Testing at IOCL Gujarat

Refinery (WO No.- 26807898 Dated: 06/02/21

5.34. SS-37 2095-ID-02

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Noise
Amplitude 16.44 mV
Frequency Spectrum 3.13 MHz
PPS 2907

Page 50 of 75
at

Test Report for On Line Partial Discharge Testing at IOCL Gujarat

Refinery (WO No.- 26807898 Dated: 06/02/21

5.35. SS-37 2095-PM-01C

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Noise
Amplitude 4.685 mV
Frequency Spectrum 13.28 MHz
PPS 2317

Page 51 of 75
at

Test Report for On Line Partial Discharge Testing at IOCL Gujarat

Refinery (WO No.- 26807898 Dated: 06/02/21

5.36. SS-37 2095-PM-05B

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Surface Discharge

Amplitude 604.0 mV
Frequency Spectrum 3.91 MHz
PPS 19

Page 52 of 75
at

Test Report for On Line Partial Discharge Testing at IOCL Gujarat

Refinery (WO No.- 26807898 Dated: 06/02/21

5.37. SS-37 2095-PM-06A

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Internal Discharge

Amplitude 59.97 mV
Frequency Spectrum 3.13 MHz
PPS 139

Page 53 of 75
at

Test Report for On Line Partial Discharge Testing at IOCL Gujarat

Refinery (WO No.- 26807898 Dated: 06/02/21

5.38. SS-37 2095-PM-08A

Test has been conducted through EMI based device in advanced mode. The result is as follows:-
Cable-1
Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Noise
Amplitude 17.00 mV
Frequency Spectrum 3.91 MHz
PPS 1994

Page 54 of 75
at

Test Report for On Line Partial Discharge Testing at IOCL Gujarat

Refinery (WO No.- 26807898 Dated: 06/02/21

Cable-2
Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Noise
Amplitude 17.00 mV
Frequency Spectrum 3.13 MHz
PPS 4766

Page 55 of 75
at

Test Report for On Line Partial Discharge Testing at IOCL Gujarat

Refinery (WO No.- 26807898 Dated: 06/02/21

Cable-3
Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Noise
Amplitude 36.76 mV
Frequency Spectrum 7.03 MHz
PPS 89

Page 56 of 75
at

Test Report for On Line Partial Discharge Testing at IOCL Gujarat

Refinery (WO No.- 26807898 Dated: 06/02/21

5.39. SS-37 2095-PM-11B

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Noise
Amplitude 14.17 mV
Frequency Spectrum 13.28 MHz
PPS 5918

Page 57 of 75
at

Test Report for On Line Partial Discharge Testing at IOCL Gujarat

Refinery (WO No.- 26807898 Dated: 06/02/21

5.40. SS-37 2095-PM-13B

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Surface Discharge

Amplitude 17.00 mV
Frequency Spectrum 17.97 MHz
PPS 46

Page 58 of 75
at

Test Report for On Line Partial Discharge Testing at IOCL Gujarat

Refinery (WO No.- 26807898 Dated: 06/02/21

5.41. SS-37 2095-PM-29B

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Noise
Amplitude 15.26 mV
Frequency Spectrum 13.28 MHz
PPS 3749

Page 59 of 75
at

Test Report for On Line Partial Discharge Testing at IOCL Gujarat

Refinery (WO No.- 26807898 Dated: 06/02/21

5.42. SS-37 2095-PM-31B

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Noise
Amplitude 11.24 mV
Frequency Spectrum 13.28 MHz
PPS 572

Page 60 of 75
at

Test Report for On Line Partial Discharge Testing at IOCL Gujarat

Refinery (WO No.- 26807898 Dated: 06/02/21

5.43. SS-37 2117-PM-01A

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Surface Discharge

Amplitude 80.08 mV
Frequency Spectrum 3.91 MHz
PPS 274

Page 61 of 75
at

Test Report for On Line Partial Discharge Testing at IOCL Gujarat

Refinery (WO No.- 26807898 Dated: 06/02/21

5.44. SS-37 2117-PM-01C

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Internal Surface Discharge

Amplitude 175.0 mV
Frequency Spectrum 4.69 MHz
PPS 1018

Page 62 of 75
at

Test Report for On Line Partial Discharge Testing at IOCL Gujarat

Refinery (WO No.- 26807898 Dated: 06/02/21

5.45. SS-37 2117-PM-01J

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Noise
Amplitude 19.84 mV
Frequency Spectrum 19.53 MHz
PPS 1797

Page 63 of 75
at

Test Report for On Line Partial Discharge Testing at IOCL Gujarat

Refinery (WO No.- 26807898 Dated: 06/02/21

5.46. SS-36 14-PA-CF-001A

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Noise
Amplitude 21.73 mV
Frequency Spectrum 7.03 MHz
PPS 1036

Page 64 of 75
at

Test Report for On Line Partial Discharge Testing at IOCL Gujarat

Refinery (WO No.- 26807898 Dated: 06/02/21

5.47. SS-36 14-PA-CF-014B

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Surface Discharge

Amplitude 33.00 mV
Frequency Spectrum 12.50 MHz
PPS 17

Page 65 of 75
at

Test Report for On Line Partial Discharge Testing at IOCL Gujarat

Refinery (WO No.- 26807898 Dated: 06/02/21

5.48. SS-36 14-KAM-RP-002A

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Noise
Amplitude 17.00 mV
Frequency Spectrum 7.03 MHz
PPS 857

Page 66 of 75
at

Test Report for On Line Partial Discharge Testing at IOCL Gujarat

Refinery (WO No.- 26807898 Dated: 06/02/21

5.49. SS-36 15-KAM-RP-002B

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Noise
Amplitude 24.00 mV
Frequency Spectrum 7.03 MHz
PPS 1010

Page 67 of 75
at

Test Report for On Line Partial Discharge Testing at IOCL Gujarat

Refinery (WO No.- 26807898 Dated: 06/02/21

5.50. SS-36 15-KAM-RP-002C

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Surface Discharge

Amplitude 89.29 mV
Frequency Spectrum 2.34 MHz
PPS 74

Page 68 of 75
at

Test Report for On Line Partial Discharge Testing at IOCL Gujarat

Refinery (WO No.- 26807898 Dated: 06/02/21

5.51. SS-36 15-PA-CF-001A

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Noise
Amplitude 21.92 mV
Frequency Spectrum 7.03 MHz
PPS 2897

Page 69 of 75
at

Test Report for On Line Partial Discharge Testing at IOCL Gujarat

Refinery (WO No.- 26807898 Dated: 06/02/21

5.52. SS-36 2061-KM-001A

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Possible Surface Discharge

Amplitude 24.00 mV
Frequency Spectrum 3.13 MHz
PPS 1097

Page 70 of 75
at

Test Report for On Line Partial Discharge Testing at IOCL Gujarat

Refinery (WO No.- 26807898 Dated: 06/02/21

5.53. SS-36 2061-KM-002A

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Noise
Amplitude 16.20 mV
Frequency Spectrum 7.03 MHz
PPS 625

Page 71 of 75
at

Test Report for On Line Partial Discharge Testing at IOCL Gujarat

Refinery (WO No.- 26807898 Dated: 06/02/21

5.54. SS-36 2061-PM-01A

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Internal Discharge

Amplitude 237.3 mV
Frequency Spectrum 4.69 MHz
PPS 132

Page 72 of 75
at

Test Report for On Line Partial Discharge Testing at IOCL Gujarat

Refinery (WO No.- 26807898 Dated: 06/02/21

5.55. SS-36 2071-KM-001

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Cable-1
Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Possible Corona Discharge

Amplitude 64.00 mV
Frequency Spectrum 22.66 MHz
PPS 571

Page 73 of 75
at

Test Report for On Line Partial Discharge Testing at IOCL Gujarat

Refinery (WO No.- 26807898 Dated: 06/02/21

Cable-2
Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Possible Corona Discharge

Amplitude 33.00 mV
Frequency Spectrum 22.66 MHz
PPS 615

Page 74 of 75
at

Test Report for On Line Partial Discharge Testing at IOCL Gujarat

Refinery (WO No.- 26807898 Dated: 06/02/21

5.56. SS-36 2071-PM-02A

Test has been conducted through EMI based device in advanced mode. The result is as follows:-

Test Data
PRPD

Frequency Spectrum
Pulse Shape

Pattern Corona Discharge

Amplitude 125.0 mV
Frequency Spectrum 5.47 MHz
PPS 772

Page 75 of 75