CN203631987U - Lightning-protection device for insulator through employing rotating shaft for double-adjustment of parallel gap - Google Patents

Lightning-protection device for insulator through employing rotating shaft for double-adjustment of parallel gap Download PDF

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Publication number
CN203631987U
CN203631987U CN201320781444.4U CN201320781444U CN203631987U CN 203631987 U CN203631987 U CN 203631987U CN 201320781444 U CN201320781444 U CN 201320781444U CN 203631987 U CN203631987 U CN 203631987U
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CN
China
Prior art keywords
insulator
electrode
protection device
wire
lightning protection
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Expired - Fee Related
Application number
CN201320781444.4U
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Chinese (zh)
Inventor
郝文杰
张伟
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State Grid Corp of China SGCC
Anyang Power Supply Co of State Grid Henan Electric Power Co Ltd
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State Grid Corp of China SGCC
Anyang Power Supply Co of State Grid Henan Electric Power Co Ltd
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Priority to CN201320781444.4U priority Critical patent/CN203631987U/en
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Publication of CN203631987U publication Critical patent/CN203631987U/en
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Expired - Fee Related legal-status Critical Current

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Abstract

转轴双调节并联间隙的绝缘子防雷装置,包括绝缘子,绝缘子的两端固定接地侧电极和导线侧电极,所述的接地侧电极和导线侧电极为至少三个爪指的爪,绝缘子两侧的爪指数相同并对应设置。本实用新型的转轴可调节的并联间隙防雷保护装置结构简单、安装方便,导线侧电极或接地侧电极的爪指为活动连接,爪指沿绝缘子轴线所在的平面移动,以调整接地线侧电极和导线侧电极之间的距离,对于不同长度的绝缘子均可使用。

The insulator lightning protection device with double adjustable parallel gap of the rotating shaft includes an insulator, and the two ends of the insulator are fixed with ground side electrodes and wire side electrodes. The ground side electrodes and wire side electrodes are claws with at least three claws. The paw index is the same and set accordingly. The parallel gap lightning protection device with adjustable rotating shaft of the utility model has a simple structure and is easy to install. The claw fingers of the electrode on the wire side or the electrode on the ground side are movably connected, and the claw fingers move along the plane where the axis of the insulator is located to adjust the electrode on the ground wire side. The distance between the electrodes on the side of the wire and the wire side can be used for insulators of different lengths.

Description

The two insulator lightning protection devices that regulate parallel connection gaps of rotating shaft
Technical field
The utility model relates to a kind of lightning protection device for power overhead network, is specifically related to the two insulator lightning protection devices that regulate parallel connection gaps of rotating shaft.
Background technology
Aerial power transmission line lightning protection is that work about electric power person makes great efforts the problem of inquiring into always.In recent years, the fault being caused by thunder and lightning in electrical network still accounts for significant proportion, comprises that the power frequency continued flow after lightning stroke flashover damages insulator and gold utensil thereof, causes line accident.Lightning fault remains one of key factor affecting power grid security.
The existing lightning protection measures of aerial power transmission line, as set up into thunder line, reduction pole tower ground resistance, reinforced insulation etc., its core concept is to improve as much as possible the lightning withstand level of circuit, reduces tripping rate with lightning strike.These lightning protection measuress can be summarized as " blocking type " lightning protection mode.For the early stage Net Frame of Electric Network weakness of China, the poor actual conditions of (oil) switch performance, lightning protection aforesaid way is suitable.In recent years, China's electrical network fast development, grid structure is more and more stronger; Along with technological progress, transformer station is used SF6 switch in a large number, relaying protection Microcomputer; reclosing device obtains general screening and uses; provide favourable condition for developing new lightning protection mode, if now still only continue to use original lightning protection mode, seemed conservative and unilateral.In addition, installation line type enters the mode of thunder device, and cost is very high, can not generally adopt.
Application number is 200420001291.8 patent overhead circuit parallel gap lightning protection device, and the parallel gap lightning protection device disclosing is simple in structure, easy for installation, and electrode material and diameter can tolerate repeatedly calcination of high current arc.But due to ground connection side and side of wire was electrode non-adjustable, so the insulator differing for length, because the space between two electrodes is larger, can not play a protective role.
Utility model content
Gap for parallel gap lightning protection device in prior art is non-adjustable, can not regulate the problem of two interelectrode distances.The utility model provides a kind of rotating shaft simple in structure two insulator lightning protection devices that regulate parallel connection gaps.
To achieve these goals, the technical solution adopted in the utility model is: the two insulator lightning protection devices that regulate parallel connection gaps of rotating shaft, comprise insulator, two ends dead earth lateral electrode and the side of wire was electrode of insulator, described ground connection lateral electrode and side of wire was electrode are the pawl that at least three pawls refer to, the identical and corresponding setting of the pawl index of insulator both sides.
One of 3,5,7 of described pawl exponent bits.
The described pawl of leading lateral electrode refers to that pawl refers to along the planar movement at insulator axis place, to adjust the distance between ground connection lateral electrode and side of wire was electrode in order to be flexibly connected.
Described flexible connection, pawl refers to side of wire was gold utensil dead by bolted splice hinge.
Described ground connection lateral electrode pawl refers to for being flexibly connected, pawl refer to ground connection side gold utensil by bolted splice hinge extremely.
Beneficial effect is: the core of " parallel connection gaps lightning protection " mode is to allow circuit to have certain tripping rate with lightning strike, but reclosing can be successful, without permanent fault. in parallel with insulator by the gap that adopts ground connection lateral electrode, side of wire was electrode to form, connect and dodge thunder and lightning and dredge power frequency arc.Parallel connection gaps and the ground connection side of insulator string and connecting of line side that ground connection lateral electrode, side of wire was electrode form, make them have respectively identical current potential, and in the time that overhead transmission line is struck by lightning, first protection gap will discharge.
Adjustable parallel gap lightning protection device of the present utility model is simple in structure, easy for installation; the pawl of side of wire was electrode or ground connection lateral electrode refers to for being flexibly connected; pawl refers to along the planar movement at insulator axis place; to adjust the distance between earth connection lateral electrode and side of wire was electrode; insulator for different length all can use; electrode more easily reaches suitable guard space by two adjustings, and in the time that overhead transmission line is struck by lightning, first protection gap will discharge.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, the two insulator lightning protection devices that regulate parallel connection gaps of rotating shaft, comprise insulator 1, two ends dead earth lateral electrode 3 and the side of wire was electrode 2 of insulator, described ground connection lateral electrode 3 and side of wire was electrode 2 refer to at least three pawls, the identical and corresponding setting of the pawl index of insulator both sides.One of 3,5,7 of described pawl exponent bits.The pawl of described side of wire was electrode 2 refers to that pawl refers to along the planar movement at insulator axis place, to adjust the distance between ground connection lateral electrode 3 and side of wire was electrode 2 in order to be flexibly connected.Described flexible connection, pawl refers to side of wire was gold utensil hinged and hinge is dead by bolt 4.Described ground connection lateral electrode 3 pawls refer to for being flexibly connected, and pawl refers to ground connection side gold utensil hinged and hinge is dead by bolt 4.。
This lightning protection device is installed on behind the two ends of insulator, by the height of the adjustable side of wire was electrode of bolt 4, reaches suitable protection gap, and in the time that overhead transmission line is struck by lightning, first protection gap will discharge.

Claims (5)

1.转轴双调节并联间隙的绝缘子防雷装置,包括绝缘子(1),绝缘子的两端固定接地侧电极(3)和导线侧电极(2),其特征在于:所述的接地侧电极(3)和导线侧电极(2)为至少三个爪指,绝缘子两侧的爪指数相同并对应设置。 1. The insulator lightning protection device with double adjustable parallel gap of the rotating shaft, including the insulator (1), the two ends of the insulator are fixed with the ground side electrode (3) and the wire side electrode (2), and it is characterized in that: the ground side electrode (3) ) and the wire-side electrode (2) are at least three claw fingers, and the claw indexes on both sides of the insulator are the same and set correspondingly. 2.根据权利要求1所述的转轴双调节并联间隙的绝缘子防雷装置,其特征在于:所述的爪指数位3个、5个、7个之一。 2. The lightning protection device for insulators with dual adjustable parallel gaps of rotating shafts according to claim 1, characterized in that: the claw index is one of 3, 5, and 7. 3.根据权利要求2所述的转轴双调节并联间隙的绝缘子防雷装置,其特征在于:所述的导线侧电极(2)的爪指为活动连接,爪指沿绝缘子轴线所在的平面移动,以调整接地侧电极(3)和导线侧电极(2)之间的距离。 3. The lightning protection device for insulators with dual adjustable parallel gaps of rotating shafts according to claim 2, characterized in that: the claw fingers of the wire side electrodes (2) are movably connected, and the claw fingers move along the plane where the axis of the insulator is located. to adjust the distance between the electrode on the ground side (3) and the electrode on the wire side (2). 4.根据权利要求3所述的转轴双调节并联间隙的绝缘子防雷装置,其特征在于:所述活动连接,爪指与导线侧金具通过螺栓(4)铰接并铰死。 4. The lightning protection device for insulators with dual adjustable parallel gaps of rotating shafts according to claim 3, characterized in that: the movable connection, the claw fingers and the metal fittings on the wire side are hinged and hinged by bolts (4). 5.根据权利要求4所述的转轴双调节并联间隙的绝缘子防雷装置,其特征在于:所述接地侧电极(3)爪指为活动连接,爪指与接地侧金具通过螺栓铰接并铰死。 5. The lightning protection device for insulators with dual adjustable parallel gaps of rotating shafts according to claim 4, characterized in that: the claw fingers of the ground-side electrode (3) are movably connected, and the claw fingers and the ground-side fittings are hinged and locked by bolts .
CN201320781444.4U 2013-12-03 2013-12-03 Lightning-protection device for insulator through employing rotating shaft for double-adjustment of parallel gap Expired - Fee Related CN203631987U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320781444.4U CN203631987U (en) 2013-12-03 2013-12-03 Lightning-protection device for insulator through employing rotating shaft for double-adjustment of parallel gap

Applications Claiming Priority (1)

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CN201320781444.4U CN203631987U (en) 2013-12-03 2013-12-03 Lightning-protection device for insulator through employing rotating shaft for double-adjustment of parallel gap

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104795188A (en) * 2015-04-17 2015-07-22 国家电网公司 Adjustable parallel gap structure of linear insulator string

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104795188A (en) * 2015-04-17 2015-07-22 国家电网公司 Adjustable parallel gap structure of linear insulator string

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140604

Termination date: 20141203

EXPY Termination of patent right or utility model