| AC resonant test system with variable inductance (metal tank type), type WR |
| AC resonant test system with variable inductance (modular reactor), type WRM |
| AC resonant test system with variable inductance (with tap changer), type WRU |
| DC test system, type GP |
| Modular DC test system, type GPM |
| PD measuring systems |
| Shielded rooms |
| Cable end termination systems with water treatment and water cooling, type CETS |