CN214505167U

CN214505167U - Anti-seismic high-voltage lightning arrester

Info

Publication number: CN214505167U
Application number: CN202120826985.9U
Authority: CN
Inventors: 赵三辉; 武丽霞
Original assignee: Baoding Sanhui Electrical Co ltd
Current assignee: Baoding Sanhui Electrical Co ltd
Priority date: 2021-04-22
Filing date: 2021-04-22
Publication date: 2021-10-26
Anticipated expiration: 2031-04-22

Abstract

The utility model discloses an antidetonation high voltage arrester, including insulating cover, be provided with the umbrella disc on insulating cover's the outer wall, the parcel has the annular cover with the umbrella disc laminating on the insulating cover, the welding has the lantern ring of two laminating settings on the annular is sheathe in, it has the bolt to slide to run through on the lantern ring, the screw thread is provided with the thread bush on the bolt, the setting is hugged closely with the lantern ring to the thread bush, the annular is sheathe in and is fixed with the connecting rod, be fixed with the installation cover on the connecting rod, be fixed with the zinc oxide piece in the insulating cover, the inner wall both ends of insulating cover are provided with first aluminium system terminal seat and the second aluminium system terminal seat with the laminating of zinc oxide piece respectively. Through the binding of two annular cover to insulating cover admittedly for insulating cover can have an antidetonation effect, can be fixed with the external support through the installation cover, ensures the stable in use of arrester.

Description

Anti-seismic high-voltage lightning arrester

Technical Field

The utility model belongs to the technical field of the arrester, specifically be an antidetonation high voltage arrester.

Background

An electric appliance for protecting electric equipment from high transient overvoltage caused by lightning stroke, limiting follow current time and normally limiting follow current amplitude is composed of lightning arrester, overvoltage protector and overvoltage limiter.

The overvoltage protection circuit is suitable for overvoltage protection of transformers, transmission lines, distribution panels, switch cabinets, power metering boxes, vacuum switches, parallel compensation capacitors, rotating motors, semiconductor devices and the like.

When the existing lightning arrester is assembled, most of the existing lightning arresters can directly fix the outer protective insulating sleeve and the support through screws, so that the insulating sleeve is easily damaged or the support falls off due to unbalanced stress when the lightning arrester is used for a long time.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an antidetonation high voltage arrester to solve the not high problem of installation stability.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an antidetonation high voltage arrester, includes insulating cover, be provided with the umbrella dish on insulating cover's the outer wall, the parcel has the annular cover with the umbrella dish laminating on the insulating cover, the annular sheathes in and has the lantern ring that the welding set up two laminatings, it has the bolt to slide to run through on the lantern ring, the screw thread is provided with the thread bush on the bolt, the thread bush is hugged closely the setting with the lantern ring, be fixed with the connecting rod on the annular cover, be fixed with the installation cover on the connecting rod, be fixed with the zinc oxide piece in the insulating cover, the inner wall both ends of insulating cover are provided with first aluminium system terminal seat and the second aluminium system terminal seat with the laminating of zinc oxide piece respectively, and the zinc oxide piece has good nonlinear volt-ampere characteristic, makes the minimum (microampere or milliampere level) of electric current that flows through the arrester when normal operating voltage, and when the overvoltage acts on, resistance sharply descends, and the energy of the overvoltage reaches the effect of protection, the non-linear characteristic of the zinc oxide block is utilized to play the role of leakage and disconnection.

Preferably, the insulating sleeve is made of glass fiber reinforced plastic materials and is of an integrated structure with the umbrella disc, so that the insulating protective effect is achieved while enough strength is guaranteed.

Preferably, the annular sleeve is a half-and-half splicing structure, one end connecting position is arranged in a hinged mode, the other end is in an opening and closing mode, the insulating sleeve is convenient to wrap, and meanwhile the insulating sleeve is also convenient to detach.

Preferably, one end of the insulating sleeve is covered with a first end cover, and a first sealing glue layer is filled in the first end cover, so that the first end cover and the insulating sleeve can be sealed.

Preferably, a first terminal is embedded into the first aluminum terminal base, the first terminal sequentially penetrates through the first sealing adhesive layer and the first end cover, and a through wire ring is welded on the first terminal and can be used for connecting a high-voltage wire.

Preferably, the other end of the insulating sleeve is covered with a second end cover, and a second sealing adhesive layer is filled in the second end cover and can seal the second end cover and the insulating sleeve.

Preferably, a second terminal is fixedly embedded in the second aluminum terminal seat, the second terminal penetrates through the second end cover and the second sealing glue layer, a wire seat is fixed on the second terminal, and a wire hole is formed in the wire seat and can be connected with a grounding wire, so that lightning protection safety is achieved.

Compared with the prior art, the beneficial effects of the utility model are that: through the binding of two annular cover to insulating cover admittedly for insulating cover can have an antidetonation effect, can be fixed with the external support through the installation cover, ensures the stable in use of arrester.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of the top view structure of the annular sheath of the present invention.

In the figure: 1. an insulating sleeve; 11. an annular sleeve; 12. a collar; 13. a bolt; 14. a threaded sleeve; 15. a connecting rod; 16. a zinc oxide block; 17. a first aluminum terminal block; 18. a second aluminum terminal block; 19. installing a sleeve; 2. a first terminal; 21. a first sealant layer; 22. a first end cap; 23. a through-wire ring; 3. a second sealant layer; 31. a second terminal; 32. a wire seat; 33. a through hole; 34. a second end cap.

Detailed Description

Referring to fig. 1 and 2, an anti-seismic high-voltage arrester comprises an insulating sleeve 1, an umbrella disc is arranged on the outer wall of the insulating sleeve 1, an annular sleeve 11 attached to the umbrella disc is wrapped on the insulating sleeve 1, two lantern rings 12 attached to the annular sleeve 11 are welded on the annular sleeve 11, a bolt 13 penetrates through the lantern rings 12 in a sliding mode, a threaded sleeve 14 is arranged on the bolt 13 in a threaded mode, the threaded sleeve 14 is attached to the lantern rings 12 in a clinging mode, a connecting rod 15 is fixed on the annular sleeve 11, a mounting sleeve 19 is fixed on the connecting rod 15, a zinc oxide block 16 is fixed in the insulating sleeve 1, a first aluminum terminal seat 17 and a second aluminum terminal seat 18 attached to the zinc oxide block 16 are respectively arranged at two ends of the inner wall of the insulating sleeve 1, the zinc oxide block 16 has good nonlinear volt-ampere characteristics, so that the current flowing through the arrester at normal operating voltage is extremely low (microampere or milliampere level), and the resistance is sharply reduced when overvoltage acts, the energy of overvoltage is discharged to achieve the protection effect, no discharge gap exists, and the nonlinear characteristic of the zinc oxide block 16 is utilized to play the roles of current discharge and disconnection.

Referring to fig. 1 and 2, the insulating sleeve 1 is made of glass fiber reinforced plastic material and is integrated with the umbrella disk, so that the insulating sleeve has an insulating and protecting effect while ensuring sufficient strength.

Referring to fig. 1 and 2, the annular sleeve 11 is a half-and-half splicing structure, one end of the annular sleeve is hinged, and the other end of the annular sleeve is in an opening and closing form, so that the insulating sleeve 1 can be conveniently wrapped and also can be conveniently detached.

Referring to fig. 1, one end of the insulating sleeve 1 is covered with a first end cap 22, and a first sealant layer 21 is filled in the first end cap 22, so as to seal between the first end cap 22 and the insulating sleeve 1.

Referring to fig. 1, a first terminal 2 is fixedly embedded in a first aluminum terminal base 17, the first terminal 2 sequentially penetrates through a first sealant layer 21 and a first end cap 22, and a wire loop 23 is welded on the first terminal 2 and can be used for connecting a high-voltage wire.

Referring to fig. 1, the other end of the insulating sleeve 1 is covered with a second end cap 34, and the second end cap 34 is filled with a second sealant layer 3, which can seal the second end cap 34 and the insulating sleeve 1.

Referring to fig. 1, a second terminal 31 is fixedly embedded in the second aluminum terminal base 18, the second terminal 31 penetrates through the second end cap 34 and the second sealant layer 3, a through wire base 32 is fixed on the second terminal 31, and a through wire hole 33 is formed in the through wire base 32 and can be connected with a ground wire, thereby completing lightning protection safety.

The working principle of the scheme is as follows: when high-voltage electrical apparatus lightning protection when needing to carry out, bind high-voltage line and lead wire ring 23, then run through the through wire hole 33 with earth connection on the lead wire seat 32 and bind for the high-voltage line can play a ground connection effect of taking precautions against earthquakes.

The zinc oxide block 16 has good nonlinear volt-ampere characteristics, so that the current flowing through the lightning arrester is extremely small (microampere or milliampere level) at normal working voltage, when overvoltage acts, the resistance is rapidly reduced, the energy of the overvoltage is discharged, the protection effect is achieved, no discharge gap exists, and the nonlinear characteristics of the zinc oxide block 16 are utilized to play the roles of current discharge and disconnection.

When the whole lightning arrester needs to be erected and installed, the two annular sleeves 11 are wrapped on the insulating sleeve 1, then the sleeve rings 12 in corresponding positions are closed, then the bolt 13 penetrates through the two attached sleeve rings 12, the bolt 13 is fixed through the threaded sleeve 14, locking is completed, and then the installation sleeve 19 can be fixedly butted with equipment.

Claims

1. The utility model provides an antidetonation high voltage arrester, includes insulating cover (1), its characterized in that: be provided with the umbrella disk on the outer wall of insulating cover (1), the parcel has annular cover (11) with the umbrella disk laminating on insulating cover (1), the welding has lantern ring (12) that two laminating set up on annular cover (11), it has bolt (13) to slide to run through on the lantern ring (12), bolt (13) are gone up the screw thread and are provided with thread bush (14), thread bush (14) are hugged closely the setting with lantern ring (12), be fixed with connecting rod (15) on annular cover (11), be fixed with installation cover (19) on connecting rod (15), insulating cover (1) internal fixation has zinc oxide piece (16), the inner wall both ends of insulating cover (1) are provided with first aluminium system terminal seat (17) and second aluminium system terminal seat (18) of laminating with zinc oxide piece (16) respectively.

2. An anti-seismic high voltage arrester according to claim 1, characterized in that: the insulating sleeve (1) is made of glass fiber reinforced plastic materials and is of an integrated structure with the umbrella disk.

3. An anti-seismic high voltage arrester according to claim 1, characterized in that: the annular sleeve (11) is of a half-and-half splicing structure, one end of the annular sleeve is hinged, and the other end of the annular sleeve is in an opening and closing mode.

4. An anti-seismic high voltage arrester according to claim 1, characterized in that: one end of the insulating sleeve (1) is covered with a first end cover (22), and a first sealing glue layer (21) is filled in the first end cover (22).

5. An anti-seismic high voltage arrester according to claim 4 characterized in that: first aluminium system terminal seat (17) internal fixation has first terminal (2), and first terminal (2) run through first sealant layer (21) and first end cover (22) in proper order, and the welding has through-wire ring (23) on first terminal (2).

6. An anti-seismic high voltage arrester according to claim 1, characterized in that: the other end of the insulating sleeve (1) is covered with a second end cover (34), and a second sealing glue layer (3) is filled in the second end cover (34).

7. An anti-seismic high voltage arrester according to claim 6 characterized in that: a second terminal (31) is fixedly embedded in the second aluminum terminal seat (18), the second terminal (31) penetrates through the second end cover (34) and the second sealing glue layer (3), a wire seat (32) is fixed on the second terminal (31), and a wire through hole (33) is formed in the wire seat (32).