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Transformer Data Tab | Log Report
Log Tab
The Log Tab displays the results of the calculation parameters as described in How to Generate [Z]-Based Transformer Parameters.
There are 4 Z-based Transformer models available, a 2-windings transformer, a 2-windings transformer with fault, a 3-windings transformer, and a 3-windings transformer with fault.
Example of a three-phase three-winding transformer.
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HyperTransfo Report Thu Mar 03 14:31:34 EST 2022
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COMMENTS:
Data for three-phase three-winding transformer.
PARAMETERS:
Nominal Frequency (Hz): 60.0
Nominal Power (VA) : 3.0E8
Number of windings : 3
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Winding Winding Voltage Resistance
(Vrms) (pu)
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w1 132790.600 0.010
w2 63393.000 0.020
w3 50000.000 0.030
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EXCITATION DATA:
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No Load No Load Short-circuit Short-circuit Short-circuit
Sequence Excitation Losses Reactance Reactance Reactance
Current (W) X12 X13 X23
(pu) (pu) (pu)
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Positive 0.4280 135730.000 0.0874 0.3426 0.2096
Zero 0.4280 135730.000 0.0734 0.2626 0.1856
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INDUCTANCE MATRIX TRANSFORMER PARAMETERS:
R =
1.7633 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
0.0000 1.7633 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
0.0000 0.0000 1.7633 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
0.0000 0.0000 0.0000 0.8037 0.0000 0.0000 0.0000 0.0000 0.0000
0.0000 0.0000 0.0000 0.0000 0.8037 0.0000 0.0000 0.0000 0.0000
0.0000 0.0000 0.0000 0.0000 0.0000 0.8037 0.0000 0.0000 0.0000
0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.7500 0.0000 0.0000
0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.7500 0.0000
0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.7500
X =
41431.5358 0.0000 0.0000 19775.5778 0.2262 0.2262 15589.8352 0.8858 0.8858
0.0000 41431.5358 0.0000 0.2262 19775.5778 0.2262 0.8858 15589.8352 0.8858
0.0000 0.0000 41431.5358 0.2262 0.2262 19775.5778 0.8858 0.8858 15589.8352
19775.5778 0.2262 0.2262 9442.3257 0.0000 0.0000 7444.2557 0.1268 0.1268
0.2262 19775.5778 0.2262 0.0000 9442.3257 0.0000 0.1268 7444.2557 0.1268
0.2262 0.2262 19775.5778 0.0000 0.0000 9442.3257 0.1268 0.1268 7444.2557
15589.8352 0.8858 0.8858 7444.2557 0.1268 0.1268 5874.0329 0.0000 0.0000
0.8858 15589.8352 0.8858 0.1268 7444.2557 0.1268 0.0000 5874.0329 0.0000
0.8858 0.8858 15589.8352 0.1268 0.1268 7444.2557 0.0000 0.0000 5874.0329
L =
109.9006 0.0000 0.0000 52.4563 0.0006 0.0006 41.3533 0.0023 0.0023
0.0000 109.9006 0.0000 0.0006 52.4563 0.0006 0.0023 41.3533 0.0023
0.0000 0.0000 109.9006 0.0006 0.0006 52.4563 0.0023 0.0023 41.3533
52.4563 0.0006 0.0006 25.0465 0.0000 0.0000 19.7465 0.0003 0.0003
0.0006 52.4563 0.0006 0.0000 25.0465 0.0000 0.0003 19.7465 0.0003
0.0006 0.0006 52.4563 0.0000 0.0000 25.0465 0.0003 0.0003 19.7465
41.3533 0.0023 0.0023 19.7465 0.0003 0.0003 15.5814 0.0000 0.0000
0.0023 41.3533 0.0023 0.0003 19.7465 0.0003 0.0000 15.5814 0.0000
0.0023 0.0023 41.3533 0.0003 0.0003 19.7465 0.0000 0.0000 15.5814
RmagPos =
389744.5690 88823.5272 55256.7597
RmagZero =
389783.5434 88832.4096 55262.2854
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REFERENCES
[1] HYPERSIM Reference guide manual for software version 9.1.
[2] Dommel, H., et al., Electromagnetic Transients Program Reference Manual (EMTP Theory
Book), 1986.
[3] A transformer model for winding fault studies, Partrick Batard, Pierre Bertrand, Michel Meunier,
IEEE, Vol 9, No 2, April 1994.
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