In another embodiment, a dual core closed bobbin shielded inductor is used.

The closed coil heat transfer media and the evaporative heat transfer media are disposed laterally next to each other.

The assembly (11) includes a contact (10) having loops (14) with axes forming with a closed coil with opposed contact points (16, 18).

The tape spool chamber can be enclosed, open, or partially enclosed.

A coil spring (40) biases the valve closed when there is no current flow through the coil.

The resulting encapsulated coil (5) is rigid, robust and hermetically sealed.

The flexible coil is wrapped within the mounting ring to form a closed loop.

The closed loop is shaped into a rigid conductive coil by application pressure, in order to conform the coil to a desired profile.

A closed compensation control regulates the reception coil output signal in the receiving coil for compensating changes which occur in the detection range of the reception coil and influence the reception coil.

Respective ones of the coil wires thus aligned are interconnected to form an electrically closed loop.

According to a first aspect of the invention, there is provided a coil for measuring electrical current in a conductor surrounded by the coil, the coil comprising at least one geometrically closed loop.

The cylinder has a slot (36) for receiving therethrough the closed end of the tube and the reel has a passageway (66) for receiving therein the same closed end.

When the coil (5) is disconnected, the electrovalve is closed by the force of a spring (27).

In another embodiment, a dual core closed bobbin shielded inductor is used.

The interlayer connecting conductor (29) does not constitute a closed loop enclosing the coil conductor.