CN203631204U - Lightning-protection device for insulator through employing corrugated pipe to adjust parallel gap - Google Patents

Lightning-protection device for insulator through employing corrugated pipe to adjust parallel gap Download PDF

Info

Publication number
CN203631204U
CN203631204U CN201320781433.6U CN201320781433U CN203631204U CN 203631204 U CN203631204 U CN 203631204U CN 201320781433 U CN201320781433 U CN 201320781433U CN 203631204 U CN203631204 U CN 203631204U
Authority
CN
China
Prior art keywords
insulator
wire
electrode
protection device
pawl
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201320781433.6U
Other languages
Chinese (zh)
Inventor
刘永欢
张茂娟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Anyang Power Supply Co of State Grid Henan Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
Anyang Power Supply Co of State Grid Henan Electric Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by State Grid Corp of China SGCC, Anyang Power Supply Co of State Grid Henan Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201320781433.6U priority Critical patent/CN203631204U/en
Application granted granted Critical
Publication of CN203631204U publication Critical patent/CN203631204U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Suspension Of Electric Lines Or Cables (AREA)

Abstract

The utility model provides a lightning-protection device for an insulator through employing a corrugated pipe to adjust a parallel gap, and the device comprises an insulator. Two ends of the insulator are respectively in fixed connection with a ground-side electrode and a wire-side electrode, which are respectively a claw with at least three fingers. The fingers at two sides of the insulator are equal in number and are correspondingly arranged. The device provided by the utility model is simple in structure, and is convenient to install. The fingers of the ground-side electrode or the wire-side electrode are connected movably, and move along the plane where the axis of the insulator is located, so as to adjust the distance between the ground-side electrode and the wire-side electrode. The device can be used for insulators with different lengths.

Description

Bellows regulates the insulator lightning protection device of parallel connection gaps
Technical field
The utility model relates to a kind of lightning protection device for power overhead network, is specifically related to the insulator lightning protection device of bellows adjusting parallel connection gaps.
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 bellows simple in structure to regulate the insulator lightning protection device of parallel connection gaps.
To achieve these goals, the technical solution adopted in the utility model is: bellows regulates the insulator lightning protection device of parallel connection gaps, 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 be connected by bellows with side of wire was gold utensil.
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, all can use for the insulator of different length.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, bellows regulates the insulator lightning protection device of parallel connection gaps, comprises 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 be connected by bellows 4 with side of wire was gold utensil.
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 bellows 4, reaches suitable protection gap, and in the time that overhead transmission line is struck by lightning, first protection gap will discharge.

Claims (4)

1. bellows regulates the insulator lightning protection device of parallel connection gaps, comprise insulator (1), the two ends dead earth lateral electrodes (3) of insulator and side of wire was electrode (2), it is characterized in that: 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.
2. want bellows described in 1 to regulate the insulator lightning protection device of parallel connection gaps according to right, it is characterized in that: one of 3,5,7 of described pawl exponent bits.
3. want the insulator lightning protection device of the bellows adjusting parallel connection gaps described in 2 according to right, it is characterized in that: the pawl of described side of wire was electrode (2) refers to for being flexibly connected, 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).
4. the insulator lightning protection device of wanting the bellows adjusting parallel connection gaps described in 3 according to right, is characterized in that: described flexible connection, pawl refers to be connected by bellows (4) with side of wire was gold utensil.
CN201320781433.6U 2013-12-03 2013-12-03 Lightning-protection device for insulator through employing corrugated pipe to adjust parallel gap Expired - Fee Related CN203631204U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320781433.6U CN203631204U (en) 2013-12-03 2013-12-03 Lightning-protection device for insulator through employing corrugated pipe to adjust parallel gap

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320781433.6U CN203631204U (en) 2013-12-03 2013-12-03 Lightning-protection device for insulator through employing corrugated pipe to adjust parallel gap

Publications (1)

Publication Number Publication Date
CN203631204U true CN203631204U (en) 2014-06-04

Family

ID=50817659

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320781433.6U Expired - Fee Related CN203631204U (en) 2013-12-03 2013-12-03 Lightning-protection device for insulator through employing corrugated pipe to adjust parallel gap

Country Status (1)

Country Link
CN (1) CN203631204U (en)

Similar Documents

Publication Publication Date Title
CN102841280B (en) Method for simulating lightning trip-out rates of 500kV transmission line with four circuits on same tower
CN203423465U (en) Power distribution overhead power transmission line lightning-induced overvoltage lightning protection device
CN201765890U (en) Parallel gap lightning protection device for overhead transmission line
CN101174011A (en) Earthing mode of optical fiber compound overhead ground wire and earthing pilot arc clearance
CN203260987U (en) High-voltage line lightning arrester
CN203631987U (en) Lightning-protection device for insulator through employing rotating shaft for double-adjustment of parallel gap
CN202749168U (en) Ultra-high voltage line composite insulator with barrier device
CN203631204U (en) Lightning-protection device for insulator through employing corrugated pipe to adjust parallel gap
CN205810490U (en) The voltage-sharing protective device of a kind of extra-high voltage combined insulator and insulator chain
CN203631986U (en) Lightning-protection device for insulator through employing corrugated pipe for double-adjustment of parallel gap
CN205646747U (en) 800 kilovolt direct current line gap installation device
CN203631985U (en) Parallel-gap adjusting lightning-protection device in shape of umbrella frame for insulator
CN203631202U (en) Parallel-gap adjusting lightning-protection device in double-umbrella-frame shape for insulator
CN203631203U (en) Lightning-protection device for insulator through employing rotating shaft to adjust parallel gap
CN204089124U (en) Adjustable type power transmission line wind deflection preventive
CN204304426U (en) Anti-counterattack thunder device
CN104734102A (en) Alternating current transmission line iron tower
CN204464915U (en) Transmission line of alternation current steel tower
CN105762753A (en) +/-800kV DC line arrester installing device and method
CN206117082U (en) Energy -conserving connecting device of ground wire safety
CN206673547U (en) A kind of new 6 10 kilovolts of overhead lines double-rod structure for installing lightning arrester
CN203562738U (en) Lightning protection device for aerial insulation line
CN203352118U (en) Lightning protection device of overhead transmission line
CN204538463U (en) A kind of paracentesis type external clearance arrester
CN204315319U (en) Be exclusively used in the parallel connection gaps of 220kV composite insulator

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
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