Abstract: Earthquake protector for protecting apparatus such as a circuit-breaker. The apparatus to be protected is mounted on a support member (2) which is connected to a plate assembly via jack 4. The plate assembly is supported on a base member (8,9) itself firmly connected to a foundation 1 on the ground. The plate assembly comprises a first plate (3) and a second plate (17) which are horizontally movable relative to the base member. The first plate has a first sole plate (5) on its lower surface which engages a second sole plate (7) on the other surface of the base member. Said sole plates are arranged to present a very low coefficient of friction to relative horizontal motion. The second plate (17) is fast with the first plate (3) and is connected therebelow by a connection means (15) passing through corresponding openings in the sole plates (5 and 7).

Abstract: The invention relates to a current transformer for a high-tension installation, said transformer including a primary winding, a secondary winding and a magnetic circuit, said primary winding including a primary turn suspended coaxial inner and outer conductors in an insulation chamber which contains a dielectric fluid. The secondary winding (28) and the magnetic circuit (27) are disposed around the primary turn (6) on the outside of the chamber. Electrical continuity of the insulation chamber past an insulating seal (24) therein is provided by a jumper (29) which passes round the outside of the secondary winding and the magnetic circuit. The invention applies in particular to very high tension installations.