# GIC Data Gathering Transformer and Shunt Device Data Needed ...

GIC Data Gathering Transformer and Shunt Reactor Direct Current Resistance Data Needed For GIC System Model Kaleb Luce GIC Data Workshop 5/10/2017

Two Winding Transformer Examples GSU Example Kaleb Luce - 5/10/2017 - GIC Data Workshop

3 GSU Example Test Reports and Extracting Data 1 2 1 1 2 2 1 2 2 1 2 3 1 2 3 1 2 1 +

+ 2 2 2 1= 3 Kaleb Luce - 5/10/2017 - GIC Data Workshop

4 Standard Two/Three Winding Transformer Example Kaleb Luce - 5/10/2017 - GIC Data Workshop 5

2/3 Winding Example Test Reports and Extracting Data ** H1-H0 H2-H0

H3-H0 X1-X0 X2-X0 X3-X0

(H1-H0)+(H2-H0)+(H3-H0) ** (X1-X0)+(X2-X0)+(X3-X0)** **NOTE: This report has winding resistances referenced to neutral, therefore, no need to divided by 2. Kaleb Luce - 5/10/2017 - GIC Data Workshop 6

Example Test Reports and Extracting Data Kaleb Luce - 5/10/2017 - GIC Data Workshop 7 Autotransformer Examples

Autotransformer Winding Resistance Note: In this equivalence model, values are in direct current Ohms/Phase. This is the format required for the GIC system model. Kaleb Luce - 5/10/2017 - GIC Data Workshop 9

Example Test Reports and Extracting Data Kaleb Luce - 5/10/2017 - GIC Data Workshop 10 Example Test Reports and Extracting Data

Kaleb Luce - 5/10/2017 - GIC Data Workshop 11 Example Test Reports and Extracting Data Kaleb Luce - 5/10/2017 - GIC Data Workshop

12 Transmission Shunt Reactor Example Example Test Report and Extracting Data

=( H 1 N 1 ) + ( H 2 N 2 ) + Kaleb Luce - 5/10/2017 - GIC Data Workshop 14 Temperature Conversion

Example Temperature Conversion To 75C Formula Example Assuming that there is a measurement of 0.001962 Ohms at 85C, it would need to be converted to 75C. Assuming that you are converting the temperature of something made of copper, the equation would be worked as follows.

Kaleb Luce - 5/10/2017 - GIC Data Workshop 16 Vector Group How To Determine Vector Group

Steps To Determine Vector Group: First Symbol: for High Voltage: Always capital letters. D=Delta, Y=Wye, YN=Wye-Nuetral, Z=Interconnected star, N=Neutral Second Symbol: for Low voltage: Always Small letters. d=Delta, y=wye, yn=wye-nuetral, z=Interconnected star, n=Neutral. Third Symbol: Phase displacement expressed as the clock hour number (1,6,11) 0 =0 that the LV phasor is in phase with the HV phasor

1 =30 lagging (LV lags HV with 30) because rotation is anti-clockwise. 11 = 330 lagging or 30 leading (LV leads HV with 30) 5 = 150 lagging (LV lags HV with 150) 6 = 180 lagging (LV lags HV with 180) Kaleb Luce - 5/10/2017 - GIC Data Workshop 18

Vector Group Example Vector Group: YNd0 Kaleb Luce - 5/10/2017 - GIC Data Workshop 19

Questions?

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