CN206945742U - A kind of cable oscillation wave local discharge measuring elbow-type head connecting pole - Google Patents

Abstract

An elbow-shaped head connecting column for measuring cable oscillatory wave partial discharge, comprising a connecting column (1) and a connecting screw rod (2); There is an elbow plug hole (1.1), the other end has an internal thread hole (1.2), a calibration line plug hole (1.3) is opened on the side of the connecting column (1), and an elbow plug hole (1.3) It is perpendicular to the center line of the calibration line insertion hole (1.2); one end of the connecting screw (2) is a threaded segment (2.1), the other end is a plug joint (2.2), and a stopper (2.3) is fixed in the middle; the utility model is beneficial The effect is that the structure of the connector is simple, the connection is convenient, easy to operate and connect, and the connection structure is stable and reliable; it will not cause the connection of the measurement lead joint to be loose, nor will it cause a large error in the partial discharge signal, which will affect the accuracy of the measurement and bring Security risk of misjudgment.

Description

An Elbow Connecting Column for Cable Oscillating Wave Partial Discharge Measurement

technical field

The utility model belongs to the electric power industry, and relates to the structural technology of an elbow-shaped head connector for measuring partial discharge of cable oscillating waves.

Background technique

In the current process of measuring cable oscillatory wave partial discharge detection, the connection method with the elbow head is to use ordinary clips to clamp the test line and the elbow head together. There has not been a special connector for measurement; this The process of measuring cable oscillatory wave partial discharge with this existing clip-clip connection method is likely to cause unreliable clip connection at the joint of the measurement lead, which often leads to a large error in the partial discharge signal, affects the accuracy of the measurement, and leads to misjudgment security risks.

Contents of the invention

The purpose of this utility model is to provide a simple structure, stable and reliable cable oscillation wave partial discharge measuring elbow connection column in order to overcome the above-mentioned defects in the prior art.

The purpose of this utility model is achieved through the following technical solutions.

An elbow connecting post for cable oscillatory wave partial discharge measurement, which is characterized in that it includes a connecting post and a connecting screw; the connecting post is a metal conductor, and its shape is a cylindrical structure, and an elbow plug hole is provided at one end of the connecting post , the other end is provided with an internal thread hole, and a calibration line plug-in hole is opened on the side of the connecting column. The elbow-shaped head plug-in hole and the center line of the calibration line plug-in hole are perpendicular to each other; one end of the connecting screw is a threaded section, and the other end is a plug joint. , with a baffle fixed in the middle;

The connection structure is to use the inner threaded hole of the connecting column to cooperate with the threaded section of the connecting screw, and the plug joint of the connecting screw is connected with the connector of the high-voltage connection line without partial discharge; the plug hole of the cylindrical connecting column and the elbow-shaped head The plug connector 5 is plugged in and connected; the calibration line plug hole of the cylinder connecting column is plugged in with the calibration connection line connector.

The beneficial effect of the utility model is that the connector has a simple structure, is convenient to connect, is easy to operate and connect, and the connection structure is stable and reliable; it will not cause loose connection at the joint of the measurement lead wire, and will not cause a large error in the partial discharge signal, which will affect the measurement. Accuracy brings security risks of misjudgment.

Description of drawings

Fig. 1 is the schematic diagram of the three-dimensional structure of the connecting column of the present invention;

Fig. 2 is a structural schematic diagram of the other side of the connecting column of the present invention;

Fig. 3 is a schematic diagram of the three-dimensional structure of the connecting screw;

Fig. 4 is a schematic diagram of the connection structure of the utility model;

Reference numerals: 1. Connecting column, 2. Connecting screw, 3. Elbow head, 4. Connector for high-voltage connection without partial discharge, 5. Connector for calibration connection.

detailed description

See Fig. 1, Fig. 2, Fig. 3, a kind of connecting column of cable oscillating wave partial discharge measuring elbow head, the utility model is characterized in that it includes connecting column 1 and connecting screw rod 2; connecting column 1 is a metal conductor, and its shape is a cylinder One end of the cylinder connecting column 1 is provided with an elbow plug hole 1.1, the other end is provided with an internal thread hole 1.2, and the side of the cylinder 1 is provided with a calibration line plug hole 1.3, and the elbow plug hole is connected to the The center lines of the calibration line insertion holes are perpendicular to each other; one end of the connecting screw 2 is a threaded section 2.1, the other end is a plug joint 2.2, and a stopper 2.3 is fixed in the middle;

As shown in Figure 4, the connection structure is to use the internal threaded hole 1.2 of the connecting column 1 to cooperate with the threaded section 2.1 of the connecting screw 2, and the plug joint 2.2 of the connecting screw 2 to be plugged and connected to the joint 4 of the high-voltage connection line without partial discharge; the connecting column 1 The plug hole 1.1 of the elbow head is connected with the plug joint of the elbow head 3; the plug hole 1.3 of the calibration line of the cylinder connection column 1 is connected with the calibration line connector 5.

The utility model is used as a connecting piece at the connection between the lead wire and the tested cable joint of the cable oscillation wave detection device;

The materials of the connectors of the utility model are all conductors, and the shape of the connectors is round to better adapt to the partial discharge environment. Since the connection of the utility model does not have a pulling effect, the plug-and-pull connection adopts an existing plug-and-socket connection structure or a charging plug-type structure.

Claims (1)

1. a kind of cable oscillation wave local discharge measuring elbow-type head connecting pole, it is characterised in that including connecting pole (1) and connection spiral shell Bar (2)；Connecting pole (1) is metallic conductor, and profile is a cylindrical structure, and the plug of elbow-type head is offered in connecting pole (1) one end Hole (1.1), the other end offer internal thread hole (1.2), and calibration OIR hole (1.3), elbow-type are offered in connecting pole (1) side Head plug hole is mutually perpendicular to calibration OIR centerline hole；Connecting screw (2) one end is thread segment (2.1), and the other end is slotting Joint (2.2), centre are fixed with a catch (2.3)；

Attachment structure is coordinated using the internal thread hole (1.2) of connecting pole (1) and the thread segment (2.1) of connecting screw (2), connection The connection-peg (2.2) of screw rod (2) connects with being plugged without partial discharge high-pressure connection line joint (4)；The elbow-type head plug hole of connecting pole (1) (1.1) the connection-peg plug with elbow-type head connects；The calibration OIR hole (1.3) of connecting pole (1) and calibration connecting-wire connector (5) Plug connection.