- Electric machinery--Design and construction--Congresses (2)
- Electric power systems--Protection--Congresses (2)
- Electric power transmission--Congresses (2)
- Dielectric measurements--Congresses (1)
- Dielectrics--Congresses (1)
- Electric cables--Congresses (1)
- Electric discharges through gases--Congresses (1)
- Electric driving--Variable speed--Congresses (1)
- Electric insulators and insulation--Congresses (1)
- Electric insulators and insulation--Sulphur hexafluoride--Congresses (1)
- Electric lines--Overhead--Congresses (1)
- Electric meters (1)
- Electric power systems--Control--Congresses (1)
- High frequency radio engineering (1)
- Microwave devices--Congresses (1)
- Millimeter waves--Congresses (1)
- Mobile communication systems--Congresses (1)
- Optical instruments--Congresses (1)
- Optical wave guides--Congresses (1)
- Power (Mechanics)--Congresses (1)
- Power electronics--Congresses (1)
- Power resources--Congresses (1)
- Static relays--Congresses (1)
- Thyristor control--Congresses (1)
- (5)