A support insulator device for 35 kV line down conductor

Abstract

The utility model relates to a kind of support insulator device for 35kV line drop wire, it includes: base, base is used to support the entire support insulator device for 35kV line drop wire, base is fixed by bolt and box-type transformer terminal pole cross arm connection;Support frame, support frame has two ends, one end is connected with box-type transformer terminal pole cross arm through base;First U-shaped ring card and second U-shaped ring card, corresponding recess is set between first U-shaped ring card and second U-shaped ring card, both sides are fixedly connected;Among them, first U-shaped ring card is fixedly connected with the other end of support frame, drop wire is penetrated through recess.According to the support insulator device for 35kV line drop wire of the utility model, the influence caused by drop wire shaking on support insulator can be reduced, and the safety operation efficiency of wind power station equipment is improved.

Description

Technical Field

[0001] This utility model relates to the field of wind power and power collection line maintenance technology, and more specifically, to a support insulator device for a 35kV line down conductor. Background Technology

[0002] The power generation principle of a wind turbine is to use wind power to drive the turbine blades to rotate, and then use a speed increaser to increase the rotation speed, thereby causing the generator to produce electricity. A wind turbine consists of a turbine head, rotor, tail fin, and blades. The blades receive wind power and convert it into electrical energy through the turbine head. The generated electricity is rectified and inverted, then transmitted via a power cable to the low-voltage side of a 35kV box-type transformer. After being stepped up, the voltage is led out from the high-voltage side and fed into the substation via a 35kV collector line down conductor. To prevent the down conductor from contacting the line terminal tower, support insulators are used on the crossarm of the terminal tower to secure the down conductor.

[0003] Currently, down conductors are secured to the supporting insulators using lead or aluminum wire. However, due to frequent strong winds at wind farms, the down conductors are constantly swaying, causing the binding aluminum or lead wire to wear down and break. This results in insufficient insulation distance between two phases, leading to phase-to-phase short circuits. While using iron or steel wire for binding may not cause wear and breakage, prolonged swaying can lead to severe cable wear and even strand breakage.

[0004] Therefore, there is an urgent need to develop a device for supporting insulators of 35kV line down conductors in wind farms to reduce the impact of down conductor swaying on the supporting insulators. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to reduce the impact of down conductor swaying on the supporting insulators and improve the safe operation efficiency of wind farm equipment.

[0006] To solve the above-mentioned technical problems, this utility model provides a support insulator device for 35kV line down conductors, comprising: a base for supporting the entire support insulator device for 35kV line down conductors, the base being fixedly connected to the crossarm of the terminal pole of a box-type transformer by bolts; a support frame having two ends, one end of which is connected to the crossarm of the terminal pole of the box-type transformer via the base; a first U-shaped ring clamp and a second U-shaped ring clamp, with corresponding grooves provided in the middle between the first U-shaped ring clamp and the second U-shaped ring clamp, and fixedly connected on both sides; wherein, the first U-shaped ring clamp is fixedly connected to the other end of the support frame, and the down conductor passes through the groove.

[0007] According to an embodiment of the present invention, the first U-shaped ring clip and the second U-shaped ring clip can be fixedly connected by buckles or bolts.

[0008] According to an embodiment of this utility model, the bolt type can be M12.

[0009] According to an embodiment of this utility model, the inner diameter of the groove of the first U-shaped ring clip and the second U-shaped ring clip can be 20mm.

[0010] According to embodiments of this utility model, the base can be made of cast steel or aluminum alloy, and the surface should be smooth, flat, and free of cracks or defects.

[0011] According to an embodiment of the present invention, an insulating rubber layer may be provided inside the grooves of the first U-shaped ring clip and the second U-shaped ring clip.

[0012] According to an embodiment of this utility model, the insulating rubber layer may be silicone rubber.

[0013] According to an embodiment of the present invention, the insulating rubber layer can be connected to the inside of the first U-shaped ring and the second U-shaped ring using adhesive.

[0014] According to an embodiment of the present invention, the supporting insulator device for a 35kV line down conductor may further include: an insulator, wherein there are multiple insulators, which are vertically connected to the support frame.

[0015] According to the embodiments of this utility model, the insulator can meet the technical requirements specified in DL / T 2387-2021, the insulation level meets the 35kV voltage insulation level, the insulation material for the insulator's skirts and sheaths is high-temperature vulcanized silicone rubber material, and the minimum thickness of the core rod sheath is not less than 5mm.

[0016] Compared with the prior art, the technical solution provided by the embodiments of this utility model can achieve at least the following beneficial effects:

[0017] The supporting insulator device for 35kV line down conductors according to this utility model can reduce the workload of daily inspection by using two U-shaped ring clips and bolts for fixation, and reduce the power outage maintenance caused by loose conductor binding wires.

[0018] According to the present invention, a support insulator device for 35kV line down conductors uses a rubber insulation layer as a buffer zone for the conductor during strong winds, which can reduce wear between the conductor and the insulator fixing point caused by conductor swaying during strong winds.

[0019] According to the present invention, the supporting insulator device for 35kV line down conductors can reduce the failure phenomena such as breakage and loosening of binding wires caused by the use of binding lines when the down conductor is fixed by the insulator. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly introduced below. Obviously, the drawings described below only involve some embodiments of this utility model, and are not intended to limit this utility model.

[0021] Figure 1 This is a schematic diagram showing a novel support insulator device for a 35kV line down conductor according to an embodiment of the present invention. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains. The terms “first,” “second,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “an” or “a” and similar terms do not indicate a limitation of quantity, but rather indicate the presence of at least one.

[0024] Figure 1 This is a schematic diagram showing a novel support insulator device for a 35kV line down conductor according to an embodiment of the present invention.

[0025] like Figure 1 As shown, the supporting insulator device for the 35kV line down conductor includes: a base 6, a support frame 5, a first U-shaped ring clamp 1, and a second U-shaped ring clamp 2.

[0026] The base 6 supports the entire insulator assembly for the 35kV line down conductor. The base 6 is fixed to the crossarm of the transformer terminal pole via bolts 8. The support frame 5 has two ends, one of which is connected to the crossarm of the transformer terminal pole via the base 6. A corresponding groove is provided in the middle between the first U-shaped ring clamp 1 and the second U-shaped ring clamp 2, with fixed connections on both sides. The first U-shaped ring clamp 1 is fixedly connected to the other end of the support frame 5, and the down conductor passes through the groove.

[0027] The supporting insulator device for 35kV line down conductors according to this utility model can reduce the workload of daily inspection by using two U-shaped ring clips and bolts for fixation, and reduce the power outage maintenance caused by loose conductor binding wires.

[0028] According to one or more embodiments of the present invention, the first U-shaped ring clip 1 and the second U-shaped ring clip 2 are fixedly connected by a buckle or bolt 4.

[0029] According to one or more embodiments of this utility model, the bolt type is M12.

[0030] According to one or more embodiments of the present invention, the inner diameter of the groove of the first U-shaped ring 1 and the second U-shaped ring 2 is 20mm.

[0031] According to one or more embodiments of this utility model, the base 6 is made of cast steel or aluminum alloy, and the surface should be smooth, flat, and free of cracks or defects.

[0032] According to one or more embodiments of the present invention, an insulating rubber layer 3 is provided inside the grooves of the first U-shaped ring 1 and the second U-shaped ring 2.

[0033] According to one or more embodiments of the present invention, the insulating rubber layer 3 is silicone rubber.

[0034] According to the present invention, a support insulator device for 35kV line down conductors uses a rubber insulation layer as a buffer zone for the conductor during strong winds, which can reduce the wear between the conductor and the fixed part of the insulator 7 caused by the swaying of the conductor during strong winds.

[0035] According to one or more embodiments of the present invention, the insulating rubber layer 3 is connected to the inside of the first U-shaped ring 1 and the second U-shaped ring 2 by adhesive.

[0036] According to one or more embodiments of the present invention, the supporting insulator device for 35kV line down conductors further includes: an insulator 7, wherein there are multiple insulators 7, which are vertically connected to the support frame 5.

[0037] According to one or more embodiments of the present invention, the insulator 7 meets the technical requirements specified in DL / T 2387-2021, the insulation class meets the 35kV voltage insulation class, the insulating material for the sheds and sheaths of the insulator 7 is high-temperature vulcanized silicone rubber material, and the minimum thickness of the core rod sheath is not less than 5mm.

[0038] According to the present invention, the supporting insulator device for 35kV line down conductors can reduce the failure phenomena such as breakage and loosening of binding wires caused by the use of binding lines when the down conductor is fixed by the insulator 7.

[0039] The above description is merely an exemplary embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model. The scope of protection of the present utility model is determined by the appended claims.

Claims

1. A support insulator device for a 35kV line down conductor, characterized in that, include: The base is used to support the entire support insulator device for the 35kV line down conductor. The base is connected and fixed to the crossarm of the terminal pole of the box transformer by bolts. A support frame having two ends, one end of which is connected to the crossarm of the terminal pole of the box-type transformer via the base; A first U-shaped ring clip and a second U-shaped ring clip, with corresponding grooves provided in the middle between the first U-shaped ring clip and the second U-shaped ring clip, and fixedly connected on both sides; The first U-shaped ring is fixedly connected to the other end of the support frame, and the lead wire passes through the groove.

2. The supporting insulator device for 35kV line down conductors as described in claim 1, characterized in that, The first U-shaped ring clip and the second U-shaped ring clip are fixedly connected by buckles or bolts.

3. The support insulator device for 35kV line down conductors as described in claim 2, characterized in that, The bolt type is M12.

4. The support insulator device for 35kV line down conductors as described in claim 1, characterized in that, The inner diameter of the grooves of the first and second U-shaped ring clips is 20mm.

5. The support insulator device for 35kV line down conductors as described in claim 1, characterized in that, The base is made of cast steel or aluminum alloy, and its surface should be smooth, flat, and free of cracks or defects.

6. The support insulator device for 35kV line down conductors as described in claim 1, characterized in that, An insulating rubber layer is installed inside the grooves of the first and second U-shaped ring clips.

7. The support insulator device for 35kV line down conductors as described in claim 6, characterized in that, The insulating rubber layer is silicone rubber.

8. The support insulator device for 35kV line down conductors as described in claim 6, characterized in that, The insulating rubber layer is connected to the inside of the first and second U-shaped ring clips using adhesive.

9. The support insulator device for 35kV line down conductors as described in claim 1, characterized in that, Also includes: An insulator, wherein there are multiple insulators, is connected to the support frame perpendicularly to the support frame.

10. The support insulator device for a 35kV line down conductor as described in claim 9, characterized in that, The insulator meets the technical requirements specified in DL / T 2387-2021, and the insulation class meets the 35kV voltage insulation class. The insulation material for the insulator skirts and sheaths is high-temperature vulcanized silicone rubber, and the minimum thickness of the mandrel sheath is not less than 5mm.

Images