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Transformer Test Report

The document provides test results for a current transformer. It includes details on the device specifications, test measurements of resistance and ratio accuracy, and graphs showing current ratio error and phase shift at different load levels.

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Talha Sadiq
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0% found this document useful (0 votes)
22 views2 pages

Transformer Test Report

The document provides test results for a current transformer. It includes details on the device specifications, test measurements of resistance and ratio accuracy, and graphs showing current ratio error and phase shift at different load levels.

Uploaded by

Talha Sadiq
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Test device Date/Time 6/3/2024 7:15

Test device CT-Analyzer Device serial no AN188M


File name C:\Users\User\Desktop\MUZAFARGARH\HV\BLUE\1S1-1S3.xml

Overall assessement OK

Asset
Ipn 1200.0 A Object Location
Isn 1.0 A Manufacturer TBEA Company NTDC
Rated burden 30.0 VA /0.80 Type OSZR160000 Country PAKISTAN
Operating burden 30.0 VA /0.80 Serial number 06B04103 Station 220kV GRID MUZAFARGARH
Standard IEC 60044-1 Core 1 Feeder 160MVA ATR T2
Application Protection Tap 2 Phase BLUE HV
Class 10P Optional IEC-ID
Frequency 50.0 Hz Comment
Rct max
ALF 20.0
Ts

Secondary winding resistance Primary winding resistance


R-meas (42.0 °C) 5.821 Ω R-meas (42.0 °C)+Rlead 5.821 Ω R-meas
6.516 Ω R-ref (75.0 °C)+Rlead 6.516 Ω R-ref

Burden
Burden cos φ: Z V-meas
I-meas

Excitation
Ls Lm 122.353338 H Results at rated burden Results at operating burden
Kr 86.04 % ALF > 47.32 ALFi > 46.72 ALF > 47.32 ALFi > 46.72
Standard IEC 60044-1 εci (@ ALF=20) 0.103 % εci (@ ALF=20) 0.103 %
V-kn 1284.585 V I-kn 0.0387 A Ts 4.009 s Ts 4.009 s

Ratio
Turns ratio 1200.0531 Results at rated burden Results at operating burden
εt 0.0044 % Ratio 1200.0 : 0.9971 Ratio 1200.0 : 0.9971
Polarity OK ε -0.2950 % ∆φ 2.52 min ε -0.2950 % ∆φ 2.52 min
εc 0.3039 % εc 0.3039 %

Residual magnetism
Residual flux
Residual magnetism

Excitation
10000.00

1000.00

X1_X2_1
100.00
Terminal voltage

10.00

1.00

Knee IEC 60044-1


0.10

0.01
0.00 0.001 0.01 0.10 1.00 10.00
RMS current

1/2
Current ratio error in % at % of rated current
VA/cos φ 1.00 % 5.00 % 10.00 % 20.00 % 50.00 % 100.00 % 120.00 % 200.00 %
30.00/0.80 -2.3814 -1.2269 -0.8940 -0.6422 -0.4093 -0.2950 -0.2663 -0.2081
15.00/0.80 -1.4456 -0.8386 -0.6323 -0.4649 -0.3011 -0.2163 -0.1987 -0.1558
7.50/0.80 -0.8194 -0.5654 -0.4437 -0.3368 -0.2253 -0.1640 -0.1506 -0.1194
3.75/1.00 -0.1051 -0.2121 -0.1997 -0.1762 -0.1343 -0.1042 -0.0973 -0.0794

Phase in min at % of rated current


VA/cos φ 1.00 % 5.00 % 10.00 % 20.00 % 50.00 % 100.00 % 120.00 % 200.00 %
30.00/0.80 89.0153 27.3428 15.8975 8.9310 4.2215 2.5170 2.2188 1.5708
15.00/0.80 73.9417 25.9385 15.7975 9.3269 4.6097 2.7112 2.3828 1.7064
7.50/0.80 58.8160 25.2687 15.5405 9.5999 4.9745 2.9866 2.6498 1.8801
3.75/1.00 52.4195 27.2863 17.7950 11.7382 6.6315 4.2911 3.8206 2.8071

Current ratio error in % at % of rated current


30.000 VA
4.0000
3.0000 15.000 VA

2.0000
Current ratio error [%]

1.0000 7.500 VA

0.0000
3.750 VA
-1.0000
-2.0000
Limits
-3.0000
-4.0000 Limits
0.00 50.00 100.00 150.00 200.00 250.00
I/Ipn [%]

Phase in min at % of rated current


100.0000 30.000 VA

90.0000
80.0000
70.0000 15.000 VA
Phase [min]

60.0000
50.0000
40.0000 7.500 VA
30.0000
20.0000
10.0000
3.750 VA
0.0000
0.00 50.00 100.00 150.00 200.00 250.00
I/Ipn [%]

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