The first wire may be a hot wire and the second wire may be a hot wire or a neutral wire.

A phase wire stitching machine is used to connect opposite ends of the winding wire of each of the stator segment assemblies to form the first, second and third phases of the stator.

The at least three electrodes are respectively connected to a neutral wire, a protective earth wire and at least one phase wire of an alternating-current system.

An electrical energy transmission device having a phase conductor (4) and a fluid flowing around said phase conductor (4) is equipped with a flow machine.

The phase wire is connected to the metal step (4) and to the metal mesh (5).

In a known arrangement, consumers are connected in the branch to a phase conductor and to a neutral conductor.

When a phase conductor (for example L1) is affected by a ground fault, an auxiliary signal (A1) is generated if the phase angle between both measurement values falls below a predetermined threshold phase angle.

The power supply circuit (11) is connected between a live wire (L) and a neutral wire (N) and used for supplying power to the control system.

The sampling circuit (11) collects a leakage current signal between a live wire (L) and a naught line (N), and outputs the signal.

The insulation displacement contact (12) has an insulation displacement terminal (26) for receiving a phase conductor (24) of a field winding (8) of the electric motor (2).

The electrical contact element functions to break or to make the phase conductor (15) of the relay fuse in response to a control signal delivered from a control unit (14).

The relay fuse (10) of the inventive device is arranged within a fuse holder (1) and has a phase conductor (15) which is connected to an electrical contact element (16) monted within the fuse holder (1).

When both auxiliary signals (H1, H2) are present, a logic circuit generates a fault identification signal (FI1) that identifies which phase conductor (for example L1) is affected by the ground fault.