CN108987007B - Drop-out arrester - Google Patents

Drop-out arrester Download PDF

Info

Publication number
CN108987007B
CN108987007B CN201810857254.3A CN201810857254A CN108987007B CN 108987007 B CN108987007 B CN 108987007B CN 201810857254 A CN201810857254 A CN 201810857254A CN 108987007 B CN108987007 B CN 108987007B
Authority
CN
China
Prior art keywords
fixedly connected
arrester
box
lock
lightning arrester
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.)
Active
Application number
CN201810857254.3A
Other languages
Chinese (zh)
Other versions
CN108987007A (en
Inventor
陈波
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.)
Wuhu Kaixin Lightning Arrester Co Ltd
Original Assignee
Wuhu Kaixin Lightning Arrester 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 Wuhu Kaixin Lightning Arrester Co Ltd filed Critical Wuhu Kaixin Lightning Arrester Co Ltd
Priority to CN201810857254.3A priority Critical patent/CN108987007B/en
Publication of CN108987007A publication Critical patent/CN108987007A/en
Application granted granted Critical
Publication of CN108987007B publication Critical patent/CN108987007B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01CRESISTORS
    • H01C7/00Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/10Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
    • H01C7/12Overvoltage protection resistors
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01CRESISTORS
    • H01C1/00Details
    • H01C1/01Mounting; Supporting
    • H01C1/014Mounting; Supporting the resistor being suspended between and being supported by two supporting sections

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Gas-Insulated Switchgears (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)

Abstract

The invention discloses a drop-out lightning arrester, which comprises an insulating column body, wherein a conductive seat is arranged at the top of the insulating column body, a lightning arrester body is arranged on the right side of the bottom of the conductive seat, an insulating pull ring matched with the lightning arrester body for use is arranged at the top of the lightning arrester body, a disconnector is arranged on the left side of the bottom of the lightning arrester body, and a first fixing ring is fixedly connected to the surface of the insulating column body. This drop-out arrester, can lock the arrester, protect the arrester, malicious operation that can effectually prevent non-staff pulls out the arrester, make the unable normal work of arrester, the power consumption security in the area that the arrester protected has been reduced, add the potential safety hazard, and the function through dual locking, can avoid battery power not enough, can't make the electro-magnet produce magnetic force and magnet and inhale mutually, and can't provide the locking effect, the security when the arrester uses has greatly been improved.

Description

Drop-out arrester
Technical Field
The invention relates to the technical field of arresters, in particular to a drop-out arrester.
Background
The lightning arrester is used for protecting the electrical equipment from being damaged by high transient overvoltage during lightning stroke, limiting follow current time and normally limiting follow current amplitude, is sometimes called as an overvoltage protector and is divided into a plurality of types, namely, the lightning arrester is provided with a metal oxide lightning arrester, a line type metal oxide lightning arrester, a gapless line type metal oxide lightning arrester, a fully-insulated composite sheathed metal oxide lightning arrester, a detachable lightning arrester, and the main types of the lightning arrester comprise a tubular lightning arrester, a valve type lightning arrester, a zinc oxide lightning arrester and the like, wherein the main working principle of each type of lightning arrester is different, but the main working principles of the lightning arrester are the same, and the lightning arrester is used for protecting communication cables and communication equipment from being damaged;
the drop-out arrester is additionally provided with the disconnector, when the arrester breaks down abnormally, the disconnector is enabled to act by utilizing power frequency short-circuit current, the grounding end of the disconnector is automatically disconnected, the arrester element is overturned to fall off and exit from operation, so that the accident is prevented, the arrester element is further prevented from being expanded, maintenance personnel can timely find out to be maintained and replaced, the overturning principle is similar to that of a fuse, and a fuse tube is overturned due to fusing of a fuse wire.
The existing drop-out arrester lacks protective measures, and is easy to pull out due to malicious operation of non-workers, so that the arrester cannot work normally, the power utilization safety in an area protected by the arrester is reduced, and potential safety hazards are increased.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a drop-out arrester, which solves the problem that the existing drop-out arrester is lack of protection measures.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a drop-out arrester, includes insulating cylinder, the top of insulating cylinder is provided with the conducting seat, the right side of conducting seat bottom is provided with the arrester body, the top of arrester body is provided with the insulating pull ring that uses with the cooperation of arrester body, the left side of arrester body bottom is provided with the disconnector, the fixed surface of insulating cylinder is connected with first solid fixed ring, first solid fixed ring's right side fixedly connected with power supply box, the left side fixedly connected with battery of power supply box inner wall, the top and the bottom on power supply box right side all are through bracing piece fixedly connected with electromagnetic box, the left side of electromagnetic box inner wall is provided with the electro-magnet, the battery passes through wire and electro-magnet electric connection, the right side of power supply box is provided with switch, and the fixed surface of arrester body is connected with the solid fixed ring of second, the solid fixed ring left side of second is through dead lever fixedly connected with magnet A third fixing ring is fixedly connected under the fixing ring, a placing box is fixedly connected on the right side of the third fixing ring, fixed blocks are fixedly connected with the top and the bottom of the right side of the placing box, a fixed column is fixedly connected between the opposite sides of the two fixed blocks, a fourth fixing ring is fixedly connected on the surface of the lightning arrester body and below the second fixing ring, a lock box is fixedly connected on the left side of the fourth fixing ring through a mounting rod, a first arc-shaped locking block is fixedly connected on the top of the left side of the lock box, a second arc-shaped locking block is rotatably connected on the surface of the first arc-shaped locking block through a rotating member, one side of the second arc-shaped locking block penetrates through the lock box and extends into the lock box, a convex block is fixedly connected on one side of the second arc-shaped locking block positioned in the lock box, a lock core body is fixedly connected on the bottom of the inner wall of the lock box, and, first springs are fixedly connected between the top and the bottom of the right side of the sliding plate and one side of the inner wall of the lock box, and a clamping block is fixedly connected to the bottom of the sliding plate.
Further, a movable plate is connected between two sides of the inner wall of the box in a sliding mode, a second spring is fixedly connected between two sides of the bottom of the movable plate and the bottom of the inner wall of the box, two sides of the bottom of the movable plate are fixedly connected with placing plates through straight rods, and a key placing frame is fixedly connected to the tops of the placing plates.
Further, the bottom fixedly connected with of placing the board draws the handle, the equal fixedly connected with in both sides of placing incasement wall bottom places the gag lever post that the board cooperation was used, the bottom of placing the case has seted up the opening.
Furthermore, the quantity of lug is three, just lug one side is the arc, one side of fixture block is the arc, with lug looks adaptation.
Further, the lock cylinder body is matched with the clamping block, and the surface of the lock cylinder body penetrates through the lock box and extends to the outside of the lock box.
Furthermore, a wire protection column is fixedly connected between the top of the power supply box and the top of the electromagnetic box, and the surface of the wire is located inside the wire protection column.
(III) advantageous effects
The invention has the following beneficial effects:
(1) the falling type lightning arrester can lock the lightning arrester and protect the lightning arrester by matching the first fixing ring, the power box, the support rod, the electromagnetic box, 6 electromagnets, a storage battery, a lead protection column, a power switch, the second fixing ring, the magnets, the third fixing ring, the fixing block, the fixing column, the fourth fixing ring, the lock box, the first arc-shaped locking block, the rotating piece, the second arc-shaped locking block, the convex block, the lock body, the sliding plate, the first spring and the clamping block, can effectively prevent the lightning arrester from being pulled down by non-workers due to malicious operation, so that the lightning arrester cannot normally work, the power utilization safety in a protected area of the lightning arrester is reduced, potential safety hazards are increased, and the problem that the storage battery is insufficient in electric quantity, the electromagnets cannot generate magnetic force to attract the magnets and cannot provide locking effect is solved through the double locking function, the safety of the lightning arrester during use is greatly improved.
(2) The drop-out arrester can be conveniently detected, maintained and replaced by means of the insulating brake operating rod under the condition of no power failure through the matching arrangement of the insulating cylinder, the conductive seat, the arrester body, the insulating pull ring and the disconnector, so that the smoothness of a circuit is ensured, the working strength and time of power maintenance personnel are greatly reduced, and the drop-out arrester is particularly suitable for occasions where power failure is not prone to happen, such as communication, airports, stations, hospitals and luxury commercial areas.
(3) This drop-out arrester, through placing the case, the movable plate, the second spring, the straight-bar, place the board, the frame is placed to the key, draw the handle, gag lever post and open-ended cooperation are used, can place in the frame is placed to the key, when having avoided the staff to maintain the arrester, the condition of not taking key or key etc. to lose, and the elasticity through the second spring, can put into to the key and place the frame back at the key, place the frame income with the key and to placing the incasement, hide the key, the non-operating personnel who has not liberated incasement inner structure can't learn the place of key, the practicality thereof has been improved.
(4) This drop-out arrester is ceramic material's setting through solid fixed ring of first solid fixed ring, second, the solid fixed ring of third and the solid fixed ring of fourth, can be at the arrester during operation, does not influence its normal use effect.
Of course, it is not necessary for any product to practice the invention to achieve all of the above-described advantages simultaneously
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of a portion of the invention at A in FIG. 1;
FIG. 3 is an enlarged view of a portion of the present invention at B of FIG. 1;
FIG. 4 is an enlarged view of a portion of the invention at C of FIG. 1;
fig. 5 is a schematic view of the internal structure of the lock box of the present invention.
In the figure, 1-insulating cylinder, 2-conducting base, 3-lightning arrester body, 4-insulating pull ring, 5-disconnector, 601-first fixing ring, 602-power box, 603-supporting rod, 604-electromagnetic box, 605-electromagnet, 606-accumulator, 607-wire, 608-wire protecting column, 609-power switch, 701-second fixing ring, 702-magnet, 801-third fixing ring, 802-placing box, 803-moving plate, 804-second spring, 805-straight rod, 806-placing plate, 807-key placing frame, 808-pull handle, 809-limiting rod, 810-opening, 901-fixing block, 902-fixing column, 1001-fourth fixing ring, 1002-locking box, 1003-first arc-shaped locking block, 1004-rotating piece, 1005-second arc-shaped locking piece, 1006-convex piece, 1007-lock core body, 1008-sliding plate, 1009-first spring and 1010-clamping piece.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.
Referring to fig. 1-5, an embodiment of the present invention provides a technical solution: a drop-out arrester comprises an insulating cylinder 1, a conductive seat 2 is arranged at the top of the insulating cylinder 1, an arrester body 3 is arranged at the right side of the bottom of the conductive seat 2, an insulating pull ring 4 matched with the arrester body 3 for use is arranged at the top of the arrester body 3, a separator 5 is arranged at the left side of the bottom of the arrester body 3, a first fixing ring 601 is fixedly connected to the surface of the insulating cylinder 1, a power box 602 is fixedly connected to the right side of the first fixing ring 601, a storage battery 606 is fixedly connected to the left side of the inner wall of the power box 602, an electromagnetic box 604 is fixedly connected to the top and the bottom of the right side of the power box 602 through a support rod 603, an electromagnet 605 is arranged at the left side of the inner wall of the electromagnetic box 604, the storage battery 606 is electrically connected with the electromagnet 605 through a lead 607, the electromagnet 605 is a device for, the coil with current has magnetism like a magnet, the electromagnet 605 generates magnetic force after being electrified and attracts a magnet 702, the power switch 609 is arranged on the right side of the power box 602 and is a press switch, the power switch 609 is positioned on two support rods 603, the power switch 609 can be hidden to a certain degree through the support rods 603, the probability that a non-worker finds the power switch 609 is reduced, the surface of the lightning arrester body 3 is fixedly connected with a second fixing ring 701, the left side of the second fixing ring 701 is fixedly connected with the magnet 702 through a fixing rod, a third fixing ring 801 is fixedly connected on the surface of the insulating cylinder 1 and is positioned under the first fixing ring 601, the right side of the third fixing ring 801 is fixedly connected with a placing box 802, the top and the bottom of the right side of the placing box 802 are fixedly connected with fixing blocks 901, and a fixing column 902 is fixedly connected between the opposite sides of the two fixing, a fourth fixing ring 1001 is fixedly connected to the surface of the arrester body 1 and located below the second fixing ring 701, a lock box 1002 is fixedly connected to the left side of the fourth fixing ring 1001 through a mounting rod, a first arc-shaped locking block 1003 is fixedly connected to the top of the left side of the lock box 1002, a second arc-shaped locking block 1005 is rotatably connected to the surface of the first arc-shaped locking block 1003 through a rotating member 1004, one side of the second arc-shaped locking block 1005 penetrates through the lock box 1002 and extends into the lock box 1002, a projection 1006 is fixedly connected to one side of the second arc-shaped locking block 1005 located in the lock box 1002, the second arc-shaped locking block 1005 can be locked after penetrating through a fixing column 902, a lock cylinder body 1007 is fixedly connected to the bottom of the inner wall of the lock box 1002, the lock cylinder body 1007 is a main component for controlling the unlocking of the lock and is a heart of the lock, a core part which can rotate with a key and drive a lock plunger to move, the top of the inner wall of the lock box 1002 is provided with a sliding chute matched with the sliding plate 1008 for use, a first spring 1009 is fixedly connected between the top and the bottom of the right side of the sliding plate 1008 and one side of the inner wall of the lock box 1002, the bottom of the sliding plate 1008 is fixedly connected with a clamping block 1010, a moving plate 803 is slidably connected between the two sides of the inner wall of the placing box 802, sliding rails matched with the moving plate 803 for use are arranged on the two sides of the inner wall of the placing box 802, a second spring 804 is fixedly connected between the two sides of the bottom of the moving plate 803 and the bottom of the inner wall of the placing box 802, a placing plate 806 is fixedly connected with the two sides of the bottom of the moving plate 803 through straight rods 805, a key placing frame 807 is fixedly connected with the top of the placing plate 806, the key placing frame 807 is used for placing a key matched with the lock body 1007, a, the bottom of placing case 802 has seted up opening 810, the quantity of lug 1006 is three, and lug 1006 one side is the arc, one side of fixture block 1010 is the arc, with lug 1006 looks adaptation, lock core body 1007 and fixture block 1006 looks adaptation, the surface of lock core body 1007 runs through lock box 1002 and extends to the outside of lock box 1002, fixedly connected with wire guard post 608 between the top of power supply box 602 and the top of electromagnetism case 604, the surface of wire 607 is located the inside of wire guard post 608, wire guard post 608 is used for protecting wire 607 and prevents to damage or artificial destruction, first solid fixed ring 601, second solid fixed ring 701, third solid fixed ring 801 and fourth solid fixed ring 1001 are ceramic material.
During the use, when the arrester body 3 needs to be taken down, press switch 609, make electro-magnet 605 cut off the power supply, can't produce magnetic force, and can't produce suction between the magnet 702, place board 806 through pulling the 808 drive, it places frame 807 to place board 806 drive key, place frame 807 with the key and shift out and place case 802, place the key in the frame 807 from the key and take out the key, insert the key to the lock core body 1007, it drives fixture block 1010 to move to rotate key lock core body 1007, make fixture block 1010 keep away from the lug 1006 on second arc locking piece 1005, shift out lock case 1002 with one side of second arc locking piece 1005, make second arc locking piece 1005 keep away from fixed column 902, it can to take down arrester body 3 to stimulate insulating pull ring 4.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims (6)

1. A drop-out arrester comprises an insulating column (1), and is characterized in that: the lightning arrester is characterized in that a conductive seat (2) is arranged at the top of an insulating cylinder (1), a lightning arrester body (3) is arranged on the right side of the bottom of the conductive seat (2), an insulating pull ring (4) matched with the lightning arrester body (3) for use is arranged at the top of the lightning arrester body (3), a disconnector (5) is arranged on the left side of the bottom of the lightning arrester body (3), a first fixing ring (601) is fixedly connected to the surface of the insulating cylinder (1), a power supply box (602) is fixedly connected to the right side of the first fixing ring (601), a storage battery (606) is fixedly connected to the left side of the inner wall of the power supply box (602), an electromagnetic box (604) is fixedly connected to the top and the bottom of the right side of the power supply box (602) through support rods (603), an electromagnet (605) is arranged on the left side of the inner wall of the electromagnetic box (604), the right side of power supply box (602) is provided with switch (609), and the fixed ring (701) of fixed surface that is connected with second of arrester body (3), the fixed ring (701) left side of second is through dead lever fixedly connected with magnet (702), its characterized in that: the lightning arrester is characterized in that a third fixing ring (801) is fixedly connected to the surface of the insulating cylinder (1) and located under a first fixing ring (601), a placing box (802) is fixedly connected to the right side of the third fixing ring (801), fixing blocks (901) are fixedly connected to the top and the bottom of the right side of the placing box (802), a fixing column (902) is fixedly connected between the two opposite sides of the fixing blocks (901), a fourth fixing ring (1001) is fixedly connected to the surface of the lightning arrester body (1) and located under the second fixing ring (701), a lock box (1002) is fixedly connected to the left side of the fourth fixing ring (1001) through a mounting rod, a first arc-shaped lock block (1003) is fixedly connected to the top of the left side of the lock box (1002), and a second arc-shaped lock block (1005) is rotatably connected to the surface of the first arc-shaped lock block (1003) through a rotating piece, one side of second arc locking piece (1005) runs through lock case (1002) and extends to the inside of lock case (1002), second arc locking piece (1005) are located inside one side fixedly connected with lug (1006) of lock case (1002), the bottom fixedly connected with lock core body (1007) of lock case (1002) inner wall, the top sliding connection of lock case (1002) inner wall has sliding plate (1008), equal fixedly connected with first spring (1009) between top and bottom on sliding plate (1008) right side and one side of lock case (1002) inner wall, the bottom fixedly connected with fixture block (1010) of sliding plate (1008).
2. A drop-out arrester as claimed in claim 1, characterized in that: the novel key storage box is characterized in that a moving plate (803) is connected between two sides of the inner wall of the storage box (802) in a sliding mode, a second spring (804) is fixedly connected between two sides of the bottom of the moving plate (803) and the bottom of the inner wall of the storage box (802), two sides of the bottom of the moving plate (803) are fixedly connected with a storage plate (806) through a straight rod (805), and a key storage frame (807) is fixedly connected to the top of the storage plate (806).
3. A drop type arrester according to claim 2, characterized in that: the bottom of the placing plate (806) is fixedly connected with a pull handle (808), the two sides of the bottom of the inner wall of the placing box (802) are fixedly connected with limiting rods (809) used with the placing plate (806) in a matched mode, and the bottom of the placing box (802) is provided with an opening (810).
4. A drop-out arrester as claimed in claim 1, characterized in that: the number of the convex blocks (1006) is three, one side of each convex block (1006) is arc-shaped, and one side of each clamping block (1010) is arc-shaped and is matched with the convex blocks (1006).
5. A drop type arrester according to claim 2, characterized in that: the lock cylinder body (1007) is matched with the clamping block (1006), and the surface of the lock cylinder body (1007) penetrates through the lock box (1002) and extends to the outside of the lock box (1002).
6. A drop-out arrester as claimed in claim 1, characterized in that: and a lead protection column (608) is fixedly connected between the top of the power supply box (602) and the top of the electromagnetic box (604), and the surface of the lead (607) is positioned inside the lead protection column (608).
CN201810857254.3A 2018-07-31 2018-07-31 Drop-out arrester Active CN108987007B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810857254.3A CN108987007B (en) 2018-07-31 2018-07-31 Drop-out arrester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810857254.3A CN108987007B (en) 2018-07-31 2018-07-31 Drop-out arrester

Publications (2)

Publication Number Publication Date
CN108987007A CN108987007A (en) 2018-12-11
CN108987007B true CN108987007B (en) 2020-04-03

Family

ID=64551991

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810857254.3A Active CN108987007B (en) 2018-07-31 2018-07-31 Drop-out arrester

Country Status (1)

Country Link
CN (1) CN108987007B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112927877B (en) * 2021-01-21 2022-09-16 江西百新电瓷电气有限公司 Oxide arrester with mounting bracket
CN112885548B (en) * 2021-04-29 2021-11-05 山东广域科技有限责任公司 Electromagnetic lightning arrester for oil field
CN112885547B (en) * 2021-04-29 2021-07-09 山东广域科技有限责任公司 Drop-out arrester for oil field
CN113643500B (en) * 2021-08-12 2022-09-20 宜宾学院 Automatic smoke alarm
CN114242360B (en) * 2021-12-17 2024-01-19 宁波市镇海国创高压电器有限公司 Lightning arrester with isolating switch

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2182456Y (en) * 1993-11-05 1994-11-09 崔正宪 Excess voltage breaking device for lightning device
CN104616943A (en) * 2015-02-15 2015-05-13 福建骐航实业有限公司 Outdoor falling type fuse protector with automatic deicing device
CN205845877U (en) * 2016-08-06 2016-12-28 傅永财 A kind of can the intelligent drop type automatic circuit of anti-ice-flashing
CN108257746B (en) * 2018-04-11 2019-08-20 固力发电气有限公司 A kind of drop-type arrester

Also Published As

Publication number Publication date
CN108987007A (en) 2018-12-11

Similar Documents

Publication Publication Date Title
CN108987007B (en) Drop-out arrester
CN204156315U (en) The anti-lockset of a kind of switch cubicle five
CN109787120B (en) Electric power safety electric leakage protector
CN108257746B (en) A kind of drop-type arrester
CN201576522U (en) Compound needle type zinc oxide arrester
CN212518006U (en) Anti-creeping outdoor intelligent power distribution low-voltage switch cabinet with protection effect
CN202308786U (en) Charged self-locking alarm high-voltage distribution cabinet
CN112332220A (en) Built-in series gap lightning arrester of distribution line
CN110098571B (en) Distribution box warning device
CN203377550U (en) Insulated single ladder with hold hoop device
CN203551707U (en) A 35 kV capacitor discharge coil monitoring device for a substation
CN214479511U (en) Detachable lightning arrester
CN209993932U (en) Warning device of distribution box
CN112908782A (en) Surge protector with backup protection device
CN104269754B (en) 10KV two station ring main unit cabinet door interlock
CN202948528U (en) Power transformer anti-theft device
CN107045077A (en) The automatic lightning strike information arrester of transmission and distribution networkses
CN207884186U (en) A kind of power distribution room intelligent monitoring and controlling device
CN204225601U (en) Coded lock blocking device
CN207938453U (en) A kind of transformer with lightning protection device
CN214428561U (en) Surge protector with backup protection device
CN216084476U (en) Integrated drop-out arrester with automatic alarm function
CN103255959B (en) Indoor passive electromagnetic lock
CN204028109U (en) Lightning arrester live-line test instrument
CN106608204B (en) Electric discharge device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant