Outdoor voltage transformer vacuum isolating switch and its operation method

Abstract

The present invention discloses an outdoor voltage transformer vacuum isolating switch and an operating method thereof, comprising a bracket (1), an insulating support (2) being vertically mounted at one end of the bracket (1), a wiring bar (5) connected to a conductive copper bar being mounted on the top of the insulating support (2), and a conductive connecting piece (6) being laterally fixedly connected to the wiring bar (5). The present invention discloses an outdoor voltage transformer vacuum isolating switch and an operating method thereof, which can be operated live and has high operating reliability.

Description

Technical Field

[0001] The invention relates to an outdoor voltage transformer vacuum isolating switch and an operating method thereof, belonging to the technical field of electric power equipment. Background Art

[0002] At present, conventional vacuum isolating switches used in outdoor voltage transformers cannot be operated under power, and the power must be turned off before opening and closing operations can be performed. This seriously affects the continuity of power supply and reduces the comfort of power users. Therefore, there is an urgent need for a vacuum isolating switch that can be operated under power. Summary of the invention

[0003] The object of the present invention is to overcome the above-mentioned disadvantages and provide an outdoor voltage transformer vacuum isolating switch capable of live operation and an operating method thereof.

[0004] The object of the present invention is achieved in that:

[0005] An outdoor voltage transformer vacuum isolating switch comprises a bracket, an insulating support is vertically mounted on one end of the bracket, a terminal block connected to a conductive copper bar is mounted on the top of the insulating support, and a conductive connector is transversely fixedly connected to the terminal block;

[0006] A conductive part is installed at the other end of the bracket, and an insulating sleeve with an opening downward is placed on the conductive part. A lower conductive connecting part with a semicircular structure is arranged on the top of the conductive part, and a notch is arranged on the lower conductive connecting part. The inner wall of the above-mentioned insulating sleeve is hinged to the lower conductive connecting part, and the hinge point of the insulating sleeve and the lower conductive connecting part coincides with the center of the semicircular structure of the lower conductive connecting part. A vacuum arc chamber is fixedly arranged in the insulating sleeve, and a conductive pulley is installed on the conductive rod at the bottom of the vacuum arc chamber. The conductive pulley is rollingly arranged on the outer surface of the lower conductive connecting part with a semicircular structure. The conductive block at the top of the vacuum arc chamber passes through the insulating sleeve and is connected to the upper conductive part. One end of the upper conductive part is fixedly connected to a pull ring, and the other end is fixedly connected to a knife switch with an arc structure. The knife switch is movably plugged into the conductive connecting part.

[0007] The present invention discloses an outdoor voltage transformer vacuum isolating switch, wherein the conductive connecting member comprises a U-shaped main body member, the U-shaped main body member comprises two parallel horizontal plates and a connecting plate connected between the two horizontal plates, and a fixing screw hole is arranged on the connecting plate of the U-shaped main body member, a fixing bolt passing through the fixing screw hole is screwed onto a terminal block, a fastening bolt is passed between the two horizontal plates, and a clamping groove is formed by protruding outwards near the opening end of the horizontal plate, and the above-mentioned knife switch is clamped in the clamping groove.

[0008] The invention discloses an outdoor voltage transformer vacuum isolating switch, wherein the guide plate with the opening end of the horizontal plate tilted outward forms a trumpet-shaped structure.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] The invention can realize live operation after adding a vacuum interrupter, and ensure reliability during cutting through a double connection mode, and can perform live operation without power-off operation, thus ensuring the continuity of electricity use for users. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The diagram is a structural diagram of an outdoor voltage transformer vacuum isolating switch according to the present invention (closing).

[0012] Figure 2 The present invention is a schematic structural diagram of an outdoor voltage transformer vacuum isolating switch (cut off).

[0013] Figure 3 The present invention is a schematic structural diagram of a conductive connector of an outdoor voltage transformer vacuum disconnector.

[0014] in:

[0015] Bracket 1, insulating support 2, conductive member 3, insulating sleeve 4, terminal block 5, conductive connector 6, vacuum interrupter 7, upper conductive member 8, knife switch 9, pull ring 10;

[0016] Lower conductive connecting piece 3.1, notch 3.2;

[0017] U-shaped body 6.1, fixing screw hole 6.2, clamping groove 6.3, fastening bolt 6.4, guide plate 6.5;

[0018] Conductive rod 7.1, conductive block 7.2, conductive pulley 7.3. DETAILED DESCRIPTION

[0019] See also Figures 1 to 3 The present invention relates to an outdoor voltage transformer vacuum isolating switch, comprising a bracket 1, an insulating support 2 is vertically installed at one end of the bracket 1, a terminal block 5 connected to a conductive copper bus is installed on the top of the insulating support 2, and a conductive connector 6 is horizontally fixedly connected to the terminal block 5;

[0020] A conductive member 3 is installed at the other end of the bracket 1, and an insulating sleeve 4 with an opening downward is sleeved on the conductive member 3. A lower conductive connecting member 3.1 with a semicircular structure is arranged on the top of the conductive member 3, and a notch 3.2 is arranged on the lower conductive connecting member 3.1. The inner wall of the insulating sleeve 4 is hinged on the lower conductive connecting member 3.1, and the hinge point between the insulating sleeve 4 and the lower conductive connecting member 3.1 coincides with the center of the semicircular structure of the lower conductive connecting member 3.1. A vacuum arc extinguishing chamber 7 is fixedly arranged in the insulating sleeve 4, and a conductive pulley 7.3 is installed on the conductive rod 7.1 at the bottom of the vacuum arc extinguishing chamber 7. The conductive pulley 7.3 is rollingly arranged on the outer surface of the lower conductive connecting member 3.1 with a semicircular structure. The conductive block 7.2 at the top of the vacuum arc extinguishing chamber 7 passes through the insulating sleeve 4 and is connected to the upper conductive member 8. One end of the upper conductive member 8 is fixedly connected to a pull ring 10, and the other end is fixedly connected to a knife switch 9 with an arc structure, and the knife switch 9 is movably plugged into the conductive connecting member 6;

[0021] When in use, the pull ring 10 is hooked with a link rod to pull the insulating sleeve 4 to rotate clockwise, so that the conductive pulley 7.3 slides to the notch 3.2, so that when the knife switch 9 is separated from the conductive connecting piece 6, the electrical connection between the conductive pulley 7.3 and the conductive piece 3 is also disconnected, thereby providing double protection and ensuring the reliability of the cutting operation.

[0022] Further, the conductive connector 6 includes a U-shaped body 6.1, which includes two parallel horizontal plates and a connecting plate connected between the two horizontal plates, and a fixing screw hole 6.2 is provided on the connecting plate of the U-shaped body 6.1, and a fixing bolt passing through the fixing screw hole 6.2 is screwed on the terminal block 5, a fastening bolt 6.4 is passed between the two horizontal plates, and a clamping groove 6.3 is formed by protruding outwards near the opening end of the horizontal plate, and the knife switch 9 is clamped in the clamping groove 6.3;

[0023] Furthermore, the guide plate 6.5 with the opening end of the horizontal plate tilted outward is formed with a trumpet-shaped structure, so as to facilitate the knife gate 9 to be clamped into the clamping groove 6.3;

[0024] An operating method for an outdoor voltage transformer vacuum isolating switch, during the isolating operation, a link rod is used to hook a pull ring 10, and the pull ring 10 is pulled to make an insulating sleeve 4 rotate clockwise around a hinge point between the insulating sleeve 4 and a conductive member 3, so that a conductive pulley 7.3 at the bottom of a vacuum interrupter 7 slides to a notch 3.2, thereby realizing the isolating operation; during the closing operation, a link rod is used to hook the pull ring 10 to make the insulating sleeve 4 rotate counterclockwise around a hinge point between the insulating sleeve 4 and the conductive member 3, so that the conductive pulley 7.3 at the bottom of the vacuum interrupter 7 rolls with a lower conductive connecting member 3.1 to realize electrical connection;

[0025] In addition: It should be noted that the above specific implementation is only an optimization scheme of this patent. Any changes or improvements made by technicians in this field based on the above concept are within the scope of protection of this patent.

Claims

1. An outdoor voltage transformer vacuum isolating switch, characterized in that: It comprises a bracket (1), an insulating support (2) is vertically mounted on one end of the bracket (1), a wiring bar (5) connected to a conductive copper bar is mounted on the top of the insulating support (2), and a conductive connecting piece (6) is transversely fixedly connected to the wiring bar (5); A conductive member (3) is installed at the other end of the bracket (1), and an insulating sleeve (4) with an opening facing downward is sleeved on the conductive member (3). A lower conductive connecting member (3.1) with a semicircular structure is arranged on the top of the conductive member (3). The inner wall of the insulating sleeve (4) is hinged to the lower conductive connecting member (3.1), and the hinge point between the insulating sleeve (4) and the lower conductive connecting member (3.1) coincides with the center of the semicircular structure of the lower conductive connecting member (3.1). A vacuum arc extinguishing chamber (7) is fixedly arranged in the insulating sleeve (4), and a conductive pulley (7.3) is installed on the conductive rod (7.1) at the bottom of the vacuum arc extinguishing chamber (7). The conductive pulley (7.3) is rollingly arranged on the outer surface of the lower conductive connecting member (3.1) with a semicircular structure. The conductive block (7.2) at the top of the vacuum arc extinguishing chamber (7) passes through the insulating sleeve (4) and is connected to the upper conductive member (8). The upper conductive member (8 ) is fixedly connected to a pull ring (10) at one end and to a knife switch (9) with an arc structure at the other end, the knife switch (9) being movably plugged into the conductive connecting member (6); and a notch (3.2) is provided on the lower conductive connecting member (3.1); the conductive connecting member (6) comprises a U-shaped main body (6.1), the U-shaped main body (6.1) comprising two parallel horizontal plates and a connecting plate connected between the two horizontal plates, and a fixing screw hole (6.2) is provided on the connecting plate of the U-shaped main body (6.1), a fixing bolt passing through the fixing screw hole (6.2) is screwed onto the terminal block (5), a fastening bolt (6.4) is passed between the two horizontal plates, and a clamping groove (6.3) is formed by the horizontal plate protruding outwards near the opening end, and the knife switch (9) is clamped in the clamping groove (6.3); a guide plate (6.5) inclined outwards at the opening end of the horizontal plate forms a trumpet-shaped structure.

2. The method for operating an outdoor voltage transformer vacuum isolating switch according to claim 1, characterized in that: During the isolation operation, the pull ring (10) is hooked by the link rod, and the pull ring (10) is pulled to make the insulating sleeve (4) rotate clockwise around the hinge point between the insulating sleeve (4) and the conductive member (3), so that the conductive pulley (7.3) at the bottom of the vacuum interrupter (7) slides to the notch (3.2), thereby achieving the isolation operation; during the closing operation, the link rod is hooked by the pull ring (10) to make the insulating sleeve (4) rotate counterclockwise around the hinge point between the insulating sleeve (4) and the conductive member (3), so that the conductive pulley (7.3) at the bottom of the vacuum interrupter (7) and the lower conductive connecting member (3.1) are rolled to achieve electrical connection.

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