CAPACITOR VOLTAGE DIVIDER Russian patent published in 2018 - IPC G01R15/04 

FIELD: measuring equipment.

SUBSTANCE: invention relates to the technique of measuring high pulse voltages and can be used to record high-voltage pulses of a nanosecond duration. Capacitive voltage divider contains a metal housing and a high-voltage and a low-voltage arms. High-voltage arm is formed by a capacitance between the high-voltage electrode and the measuring electrode of the divider. Low-voltage arm is made in the form of a multilayer foil capacitor, wherein one terminal of the capacitor is connected to the measuring electrode of the divider, the other terminal is connected to its sealed housing. Herewith the divider housing is made detachable and consists of a branch pipe and a cover; in the housing there is an additionally installed unit of the signal transmission to the measuring duct, wherein the unit is a homogeneous transmission line consisting of a high frequency connector and pairs of external and internal coaxial conductors connected using collet contacts. In one of the pairs between the contact and the measuring electrode a ceramic disc is hermetically installed, and the high-frequency connector is installed in the cover. Multilayer foil capacitor is made in the form of alternating potential and grounded foil ring washers, between which dielectric washers are laid. Measuring electrode is fixed to the end of the branch pipe, it has a T-shaped section and contains a disc portion facing the high-voltage electrode, and also a core ledge connected to the unit of the signal transmission to the measuring duct. Internal surface of the branch pipe contains a next-to-the-end cylindrical section, the potential washers are put with tightness onto the core ledge, and the grounded washers are inserted with tightness into the cylindrical section of the branch pipe.

EFFECT: technical result is expansion of operational capabilities of the divider by providing its operation in a liquid dielectric, in a gas under high pressure and the possibility of changing the capacitance of the foil capacitor, and also by improving the processability of its assembling and repair and improving the time resolution.

8 cl, 3 dwg