- ISO-SIGMA - Energia e Gestão, Lda.
· Founded: 14/04/1988
- ISOGNOM - Electricidade e Metalomecânica, Lda.
- SIGMA- Sociedade de Instalação Geral de Material Eléctrico, Lda.
· Founded: 30/01/1958
Products and Services
Manufactory of electric equipments, low and medium voltage, such as:
- Panel switches medium voltage - up to 36Kv: Disconnectors, Switch-disconnectors, with rated voltage from 12 to 36kV - 400/630A;
- Transformer stations types A, AS, AI, CA-1 e CA-2, CBL;
- Indoor and outdoor substations - rated voltage from 12 to 36kV;
- Open panel boards type CA-1 and CA-2;
- Modular switchboards in aluzink structure LK Holec with outer or enclosure panels;
- Specific products for the Electricity market in Portugal
Studies and projects for:
- Maintenance systems;
- Control of equipments;
- Energetic systems;
- Electrical Installations;