Topology

A number of branches

Nature of branches

Phase shift method

angle δsr (degré)

Adjustment method

Synchronous

240

2

Simple (C or L)

Connexion

240

susceptance

180

transformation

180

120

120

30P1530M15

30

60 with 90˚ injection

injection

0 à 60

phase shift

20with variable injection

0 à 20

Phase shift and transformation ratio

Asynchronous

3 branches

3

Double (C and L)

transformation

120

susceptance

4 branches

4

90

4 branches and shunting

4