Source google image: http://3.bp.blogspot.com/-5owdb0eKMiE/TooIGc7hKsI/AAAAAAAAAKc/DjpVoS24QqY/s1600/schema%2Belectrique%2Bd%2527un%2Bdelesteur%2Btrois%2Bcircuits.jpg
Schema electrique delesteur triphase
Source google image: http://3.bp.blogspot.com/-5owdb0eKMiE/TooIGc7hKsI/AAAAAAAAAKc/DjpVoS24QqY/s1600/schema%2Belectrique%2Bd%2527un%2Bdelesteur%2Btrois%2Bcircuits.jpg