Caderno técnico nº 5 | Disjuntores ABB

ABB

Caderno técnico nº 5 | Disjuntores ABB

Publicado: 17 de março de 2015 · Categoria: Cadernos técnicos

Deste documento

Technical Application Papers No.5 ABB circuit-breakers for direct current applications ABB circuit-breakers for direct current applications Index 1 Introduction . ...................................... 2 2 Generalities on direct current ........................... 3 3 Applications ....................................... 5 3.1 Conversion of alternative energies into electrical energy . .................................... 5 3.2 Electric traction........................................ 7 3.3 Supply of emergency services or auxiliary services . .................................. 8 3.4 Particular industrial applications ............ 8 4 Generation .......................................... 9 4.1 Storage batteries .................................... 9 4.2 Static conversion................................... 10 4.3 Dynamo ............................................... 11 5 Remarks on the interruption of direct current ........................... 12 6 Typologies of d.c. networks 6.1 Network insulated from earth ............... 14 6.2 Network with one polarity earthed......... 16 6.3 Network with the middle point of the 7 Choice of the protective device ..................................................... 20 8 Use of alternating current equipment in direct current 8.1 Variation of the magnetic field............... 37 8.2 Connection of the CB poles in parallel . ............................................. 39 9 ABB offer ............................................ 40 9.1...