Ideal two windings transformer

Block appearance in REPEAT VISION

 The Ideal two windings transformer block is a model of an ideal two winding transformer.

 The equivalent circuit (with load as resistance R) is shown in the Fig. 1:

Fig. 1 The equivalent circuit

 The following relations are fulfilled between currents and voltages of such transformer (1):

\[U_2=K \cdot U_1\]

(1)\[I_1=K\cdot I_2\]

where:

 \(K\) - transformation ratio;

 \(U_1\), \(U_2\) - voltages of primary and secondary windings, [V];

 \(I_1\), \(I_2\) - currents of primary and secondary windings, [A].

1.  Properties

Property	Default Value	Description	Units of measurement
Windings ratio	0.1	-	-

2.  Inputs and outputs

Parameters	Input/Output	Description	Units of measurement	Port type
Primary winding, +	Input	-	-	Electronics
Secondary winding, -	Input	-	-	Electronics
Primary winding, -	Output	-	-	Electronics
Secondary winding, +	Output	-	-	Electronics

In order to see the connection capabilities of the block, you need to go to page Description of block ports

See also

An example of using this block can be found in subsection Power industry of section Electrical equipment practical guide Modeling of zero-sequence current directional protection of 220 kV power transmission lines.