Scott 'T' transformer - QuickField simulation example
Input currents and output voltages of a Scott T transformer in open-circuit operation, demonstrating conversion from a three-phase to two-phase system.
How to calculate input currents and output voltages of a Scott transformer in open-circuit mode?
Answer Typical applications Geometry
Given Task
Solution
Results
* Reference: http://en.wikipedia.org/wiki/Scott-T_transformer
Engineering question
Model the Scott-T connection in an AC magnetic field-circuit problem, use high-resistance secondary loads to represent open circuit, and calculate the three input currents and two output voltages.
Scott connection transformers, phase conversion transformers, two-phase supply transformers
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Simulation problem
Problem Type
Plane-parallel problem of AC magnetics.
Voltage (RMS) U=36 V,
Frequency f=50 Hz,
Core permeability μ=1000,
Copper conductivity g=56 MS/m,
Transformer1: N1=168 (with central tap), N2=168,
Transformer2: N1=145, N2=168.
Calculate input currents and output voltages in open circuit mode.
The large resistance R=10 kOhm is connected to the secondary winding. It is used to measure output voltage.
Winding name
Voltage, U
Phase current, I
A
36√2 @ 0° V
1.95 @ -89° A
B
36√2 @ 120° V
1.94 @ 31° A
C
36√2 @ 240° V
1.94 @ 150° A
p
88 @ 0° V
-
q
88 @ 90° V
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