A power transmission system comprises a plurality of transmission lines and a control system.

The generator (30) is then coupled to the electric motor (24) via an electric transmission device (16).

The power transmission system is characterized in that a coupling coefficient between the power transmitting antenna (140) and the power receiving antenna (210) is derived on the basis of the current flowing in the inverter unit (130).

A hybrid electric powertrain system is provided including an electric motor/generator (42) drivingly engaged with the drive shaft (20) of a transmission (18).

A HVDC power transmission system comprising the above-mentioned apparatus (302).

A method and apparatus for managing icing of a plurality of transmission lines in a power transmission system.

The electric drive unit (2) is arranged in a coaxial manner on a rotational axis (3.2) of the inlet shaft (3.1).

The present invention combines the principles of a gas turbine engine with an electric transmission system.

Accordingly, the isolated island power transmission system makes it possible to improve the efficiency of electromagnetic waves received at the power receiving antenna (16).

The electric drive system allows for the starting and stopping of the rotation of a rotary valve with accurate positioning.

According to the inventive drive train (6), the constructive connection of the electric drive unit (2) is simplified and efficiency of the system is optimised.

Bolloré Bluecar use SKF in their electric powertrain system

In addition, BENTELER is also exhibiting the Electric Drive System at the booth of Bosch.

The invention provides an electric drive system (12) for a child's ridable vehicle (10) of the type which employs a battery power supply (14) and two electric drive motors (16, 18) for imparity motion to the vehicle.

A HVDC power transmission system comprising at least one apparatus (202; 212; 908) of the above-mentioned sort.