Sommaire général

Transformateurs triphasés

I. Généralités

2. Représentation symbolique

Le schéma ci-dessous représente une colonne d'un transformateur triphasé constitué de trois enroulements. Les extrémités des enroulements haute tension sont repérés par des lettres majuscules, celles des enroulements basse tension par des lettres minuscules.

Pour simplifier la représentation, les bobinages sont figurés par leurs symboles. Les enroulements placés sur la même colonne sont représentés sur le même axe horizontal ou vertical.

A PHP Error was encountered

Severity: Warning

Message: A non-numeric value encountered

Filename: dipoles/dipole.php

Line Number: 62

Backtrace:

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/assets/Utilsvg/dipoles/dipole.php
Line: 62
Function: _error_handler

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/assets/Utilsvg/transfoTri/colonneTri.php
Line: 27
Function: __construct

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/assets/imgCours/transfoTri/schema/schemaRepSymbol.php
Line: 24
Function: __construct

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/assets/imgCours/transfoTri/representSymbol.php
Line: 7
Function: include

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/application/libraries/Layoutcours.php
Line: 46
Function: file

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/application/controllers/Page.php
Line: 294
Function: contenu

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: A non-numeric value encountered

Filename: Utilsvg/notation.php

Line Number: 16

Backtrace:

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/assets/Utilsvg/notation.php
Line: 16
Function: _error_handler

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/assets/Utilsvg/dipoles/bobine.php
Line: 16
Function: __construct

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/assets/Utilsvg/dipoles/dipole.php
Line: 82
Function: auDebut

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/assets/Utilsvg/transfoTri/colonneTri.php
Line: 27
Function: __construct

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/assets/imgCours/transfoTri/schema/schemaRepSymbol.php
Line: 24
Function: __construct

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/assets/imgCours/transfoTri/representSymbol.php
Line: 7
Function: include

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/application/libraries/Layoutcours.php
Line: 46
Function: file

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/application/controllers/Page.php
Line: 294
Function: contenu

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: A non-numeric value encountered

Filename: Utilsvg/notation.php

Line Number: 16

Backtrace:

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/assets/Utilsvg/notation.php
Line: 16
Function: _error_handler

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/assets/Utilsvg/dipoles/bobine.php
Line: 20
Function: __construct

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/assets/Utilsvg/dipoles/dipole.php
Line: 82
Function: auDebut

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/assets/Utilsvg/transfoTri/colonneTri.php
Line: 27
Function: __construct

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/assets/imgCours/transfoTri/schema/schemaRepSymbol.php
Line: 24
Function: __construct

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/assets/imgCours/transfoTri/representSymbol.php
Line: 7
Function: include

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/application/libraries/Layoutcours.php
Line: 46
Function: file

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/application/controllers/Page.php
Line: 294
Function: contenu

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: A non-numeric value encountered

Filename: dipoles/dipole.php

Line Number: 62

Backtrace:

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/assets/Utilsvg/dipoles/dipole.php
Line: 62
Function: _error_handler

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/assets/Utilsvg/transfoTri/colonneTri.php
Line: 29
Function: __construct

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/assets/imgCours/transfoTri/schema/schemaRepSymbol.php
Line: 24
Function: __construct

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/assets/imgCours/transfoTri/representSymbol.php
Line: 7
Function: include

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/application/libraries/Layoutcours.php
Line: 46
Function: file

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/application/controllers/Page.php
Line: 294
Function: contenu

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: A non-numeric value encountered

Filename: Utilsvg/notation.php

Line Number: 16

Backtrace:

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/assets/Utilsvg/notation.php
Line: 16
Function: _error_handler

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/assets/Utilsvg/dipoles/bobine.php
Line: 16
Function: __construct

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/assets/Utilsvg/dipoles/dipole.php
Line: 82
Function: auDebut

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/assets/Utilsvg/transfoTri/colonneTri.php
Line: 29
Function: __construct

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/assets/imgCours/transfoTri/schema/schemaRepSymbol.php
Line: 24
Function: __construct

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/assets/imgCours/transfoTri/representSymbol.php
Line: 7
Function: include

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/application/libraries/Layoutcours.php
Line: 46
Function: file

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/application/controllers/Page.php
Line: 294
Function: contenu

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: A non-numeric value encountered

Filename: Utilsvg/notation.php

Line Number: 16

Backtrace:

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/assets/Utilsvg/notation.php
Line: 16
Function: _error_handler

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/assets/Utilsvg/dipoles/bobine.php
Line: 20
Function: __construct

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/assets/Utilsvg/dipoles/dipole.php
Line: 82
Function: auDebut

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/assets/Utilsvg/transfoTri/colonneTri.php
Line: 29
Function: __construct

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/assets/imgCours/transfoTri/schema/schemaRepSymbol.php
Line: 24
Function: __construct

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/assets/imgCours/transfoTri/representSymbol.php
Line: 7
Function: include

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/application/libraries/Layoutcours.php
Line: 46
Function: file

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/application/controllers/Page.php
Line: 294
Function: contenu

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: A non-numeric value encountered

Filename: dipoles/dipole.php

Line Number: 62

Backtrace:

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/assets/Utilsvg/dipoles/dipole.php
Line: 62
Function: _error_handler

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/assets/Utilsvg/transfoTri/colonneTri.php
Line: 31
Function: __construct

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/assets/imgCours/transfoTri/schema/schemaRepSymbol.php
Line: 24
Function: __construct

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/assets/imgCours/transfoTri/representSymbol.php
Line: 7
Function: include

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/application/libraries/Layoutcours.php
Line: 46
Function: file

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/application/controllers/Page.php
Line: 294
Function: contenu

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: A non-numeric value encountered

Filename: Utilsvg/notation.php

Line Number: 16

Backtrace:

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/assets/Utilsvg/notation.php
Line: 16
Function: _error_handler

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/assets/Utilsvg/dipoles/bobine.php
Line: 16
Function: __construct

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/assets/Utilsvg/dipoles/dipole.php
Line: 82
Function: auDebut

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/assets/Utilsvg/transfoTri/colonneTri.php
Line: 31
Function: __construct

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/assets/imgCours/transfoTri/schema/schemaRepSymbol.php
Line: 24
Function: __construct

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/assets/imgCours/transfoTri/representSymbol.php
Line: 7
Function: include

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/application/libraries/Layoutcours.php
Line: 46
Function: file

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/application/controllers/Page.php
Line: 294
Function: contenu

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: A non-numeric value encountered

Filename: Utilsvg/notation.php

Line Number: 16

Backtrace:

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/assets/Utilsvg/notation.php
Line: 16
Function: _error_handler

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/assets/Utilsvg/dipoles/bobine.php
Line: 20
Function: __construct

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/assets/Utilsvg/dipoles/dipole.php
Line: 82
Function: auDebut

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/assets/Utilsvg/transfoTri/colonneTri.php
Line: 31
Function: __construct

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/assets/imgCours/transfoTri/schema/schemaRepSymbol.php
Line: 24
Function: __construct

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/assets/imgCours/transfoTri/representSymbol.php
Line: 7
Function: include

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/application/libraries/Layoutcours.php
Line: 46
Function: file

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/application/controllers/Page.php
Line: 294
Function: contenu

File: /datas/vol2/w4a149231/var/www/etasc.fr/htdocs/index.php
Line: 315
Function: require_once

AXa1x1a2x2

Conventions d'orientation

Les enroulements primaires sont orientés avec la convention récepteur alors que les enroulements secondaires sont orientés avec la convention générateur. Les courants sont orientés pour que les forces magnétomotrices se retranchent :

XAvA(t)iA(t)a1x1va1(t)ia1(t)a2x2va2(t)ia2(t)

Dans l'exemple ci-dessus, si la contribution des courants « entrants » par les têtes d'enroulement est comptée positive alors la somme des forces magnétomotrices s'écrit :

`cc F = n_1 i_"A" (t) - n_2 i_"a1" (t) - n_2 i_"a2" (t)`

avec `n_1` et `n_2` les nombres de spires des enroulements haute tension et basse tension.