如何绘制如图所示的三相变压器？

Question

如何绘制如图所示的三相变压器？

我最多只能制作出以下代码，其效果如下：

    \documentclass{article} 
    
    \usepackage{circuitikz}
    \usepackage{tikz}
    \usepackage{gensymb}
    
    \begin{document}
    \begin{circuitikz}% default line thickness
        \draw 
        [ultra thick] (0,-1) -- (0,1);
        \draw (0,0) to[short](4,0)
        (4,0) node[americaninductorshape, anchor=midtap, rotate=-90](L1){}
        ++(0.5,0) 
        node[americaninductorshape, rotate=90](L2){} (L2.midtap)
        to[short] (5.5,0);
        \draw [ultra thick] (5.5,-1) -- (5.5,1);
    \end{circuitikz}
    \end{document}

Answer 1

像这样？

\documentclass{standalone} 

\usepackage{circuitikz}
\usepackage{tikz}
%\usepackage{gensymb}

\begin{document}
\begin{circuitikz}
    \ctikzset{inductors/coils=2}
    \draw[ultra thick] (0,-1) -- (0,1) 
      node[draw,thin,circle,above=0.5ex, pos=1] {\textbf{1}};% you could add some [xshift] if desired
    \draw (0,0) to[short](4,0)
    (4,0) node[americaninductorshape, anchor=midtap, rotate=-90](L1){}
    ++(0.6,0) 
    node[americaninductorshape, rotate=90](L2){} (L2.midtap)
    to[short] (5.5,0);
    \draw [ultra thick] (5.5,-1) -- (5.5,1)
      node[draw,thin,circle,above=0.5ex, pos=1] {\textbf{2}};% reduce [inner sep] to make circle smaller
    \node[above, font=\large] at (L1.west) {1};
    \node[above, font=\large] at (L2.east) {1};
    \node[above, font=\large] at ($(L1.west)!0.5!(L2.east)$) {:};
    \node[below, font=\large] at ($(L1.east)!0.5!(L2.west)$) {$\textbf{\textsf{T}}_1$};
\end{circuitikz}
\end{document}