| 摘要 |
In order to avoid taking leads through the envelope (1, 2) the electrode of the voltage transforming capacitive part comprises an intermediate piece (3) insulated and tight to the pressure gas, inserted in the envelope. This piece comprises, outwardly, an insulating material coating (9) and a metal layer (10) on said coating. The three (3, 9, 10) form a support for the current transforming cores (11) wound with the secondary winding. The low voltage between the intermediate piece (3) and the metal layer (10) is led by an armoured measuring able (12/12a) of an electronic measuring amplifier (14). The current transforming cores (11) are mechanically protected by a cylindrical screen which, at the same time, leads the envelope currents. |
