Electrical Equipment

Asynchronous generators
50 - 600 kW, voltage 0.4 kV, speed 600 - 1 500 rpm.

Synchronous generators
300 kVA - 20 MVA, standard voltage levels 400 V, 690 V, 6 or 6.3 kV, higher on request, speed 150 - 1 000 rpm, various arrangements.
Larger generators including mechanical brakes.
Smaller generators air-cooled, larger generators water-cooled.

Control systems of hydro power plants
HW and SW including peripherals, interfaces, binary and analogue inputs and outputs, all integrated into panels.

Static or rotary excitation and AVR of generators
For larger generators with possibility of electric braking.
HW and SW including peripherals, interfaces, binary and analogue inputs and outputs, all integrated into panels.

Electrical part of turbine governors
HW and SW including peripherals, interfaces, binary and analogue inputs and outputs, all integrated into panels.

Switchboards
Switchboards 6.3 kV, 22 kV a 35 kV, vault-type or cubicle-type (circuit breaks, isolator switches, disconnectors, metering current and voltage transformers, fuses, surge voltage protectors, lightning arresters, bus bars, bushings, support insulator, safety and protection tools for manipulations)
Switchboards 400 V AC.
Switchboards 24, 110 a 220 V DC including accumulator rooms.

Power step-up and auxiliary transformers
63 kVA - 20 MVA
Various transmission ratios 0.4/6.3 kV, 0.4/22 kV, 0.4/35 kV, 6.3/22 kV, 6.3/35 kV, 10.5/22 kV, 10.5/35 kV.
Cast resin or oil immersed transformers.

Electrical protection
Generator protection relays, HW and SW, calculations.
Electrical protections of MV and HV substations, HW and SW, calculations.

Miscellaneous installations
Uninterrupted power sources (UPS).
Control, communication and power cables, fibre cables.
Monitoring, fire protection and security systems.