CN204332866U - A kind of safety device for high-voltage power equipment being provided with shell fragment - Google Patents
A kind of safety device for high-voltage power equipment being provided with shell fragment Download PDFInfo
- Publication number
- CN204332866U CN204332866U CN201420742141.6U CN201420742141U CN204332866U CN 204332866 U CN204332866 U CN 204332866U CN 201420742141 U CN201420742141 U CN 201420742141U CN 204332866 U CN204332866 U CN 204332866U
- Authority
- CN
- China
- Prior art keywords
- lead wire
- metal lead
- disconnector
- shell fragment
- power equipment
- 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
Links
- 239000012634 fragment Substances 0.000 title claims abstract description 16
- 239000002184 metal Substances 0.000 claims abstract description 66
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims abstract description 64
- 125000006850 spacer group Chemical group 0.000 claims abstract description 22
- 238000009413 insulation Methods 0.000 claims abstract description 12
- 239000002360 explosive Substances 0.000 claims description 15
- 230000006698 induction Effects 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000004880 explosion Methods 0.000 claims description 5
- 229910000906 Bronze Inorganic materials 0.000 claims description 4
- 229910000639 Spring steel Inorganic materials 0.000 claims description 4
- 239000010974 bronze Substances 0.000 claims description 4
- 210000005069 ears Anatomy 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 230000035939 shock Effects 0.000 abstract description 4
- 230000007257 malfunction Effects 0.000 description 3
- 238000007665 sagging Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Landscapes
- Fuses (AREA)
Abstract
A kind of safety device for high-voltage power equipment being provided with shell fragment, comprise and be arranged on a left side, insulation spacer bar between right power supply buses, metal lead wire is connected with between described insulation spacer bar two ends, and the disconnector that metal lead wire can flick under being provided with fault current by least one end at spacer bar both ends of insulating, described disconnector one end is connected with insulation spacer bar by fixture, the other end is connected with metal lead wire, the insulating support rod preventing metal lead wire from kicking down ground connection is fixedly connected with below described metal lead wire, metal lead wire and the link of disconnector are the metal lead wire joint of the round pie that its cavity mates, cavity and metal lead wire joint form piston and are connected, the outside of metal lead wire joint is provided with circular shell fragment.This device, under ensureing to open the prerequisite of metal lead wire by the shock wave bomb of disconnector when reaching fault current in supply line, introduces piston apparatus between metal lead wire and disconnector, makes the connection of metal lead wire and disconnector tight, easily departs from again.
Description
Technical field
The utility model relates to a kind of power equipment safeties, especially a kind of for the safeties of high voltage electric power equip ment as 66kV, 110kV, 220kV, 330kV and more than 500kV transformer, also can be used as the insurance of high-power generator.
Background technology
Existing transformer, generator when supply of electric power line failure due to switch failure, the phenomenon causing transformer, generator to damage happens occasionally, the particularly active high voltage electric power equip ment of 66kV, 110kV, 220kV, 330kV, more than 500kV, owing to lacking the safeties being suitable for this kind equipment, when line current breaks down or is abnormal, the electric current of fault will make this kind equipment impaired, likely burns transformer and generator causes fire time serious.And protective tube of the prior art can not be applicable to the power equipment of more than 35kV, this is because: in the circuit that fault current is larger, when fuse fusing occurs in a flash, phenomenon of arc discharge can be there is between its two electrode, electric current can not be cut off in time, thus cause power equipment impaired, even accident is expanded further.
In order to prevent the generation of this kind of accident, be necessary to develop a kind of safeties being applicable to high voltage electric power equip ment.Application number is 201010271688.9, name is called that a kind of utility model being provided with the safety device for high-voltage power equipment of shell fragment provides a kind of safety device for high-voltage power equipment being provided with shell fragment, but the connection of its metal lead wire and disconnector is bad, easily comes off.
Utility model content
In order to overcome the deficiencies in the prior art, the utility model provides a kind of and is applicable to the metal lead wire of high voltage electric power equip ment and the connection safeties closely of disconnector, it is installed in high voltage supply circuit, moment can cut off electric current in time, achieve transformer, generator failure stops, guarantee the safety of power equipment.
The utility model solves the technical scheme that its technical problem adopts:
A kind of safety device for high-voltage power equipment being provided with shell fragment, it is characterized in that: comprise and be arranged on a left side, insulation spacer bar between right power supply buses, metal lead wire is connected with between described insulation spacer bar two ends, and the disconnector that metal lead wire can flick under being provided with fault current by least one end at spacer bar both ends of insulating, described disconnector one end is connected with insulation spacer bar by fixture, the other end is connected with metal lead wire, the insulating support rod preventing metal lead wire from kicking down ground connection is fixedly connected with below described metal lead wire, disconnector is the cylindric cavity of composition one, metal lead wire and the link of disconnector are the metal lead wire joint of the round pie that its cavity mates, cavity and metal lead wire joint form piston and are connected, the outside of metal lead wire joint is provided with circular electroconductive elastic sheet.
Described electroconductive elastic sheet 42 is metal material.
The material of described electroconductive elastic sheet 42 is with beryllium-bronze or spring steel.
The both ends of described spacer bar 3 are equipped with above-mentioned disconnector 6.
Described metal lead wire 4 is divided into two sections, and these the two sections connecting ears 8 arranged by insulating support rod 7 top realize electrical connection.
Described fixture 5 is for being fixed on the hangers of spacer bar 3 end.
Described disconnector 6 is thermal explosion disconnector.
Described thermal explosion disconnector comprises induction coil 61 and metal shell 62, the heating resistor 65 be electrically connected with induction coil 61 and explosive 63 is provided with in described metal shell 62, described heating resistor 65 is connected by explosive train or detonator 64 with between explosive 63, and explosive 63 is arranged in cavity 9.
The beneficial effects of the utility model are: the utility model is under ensureing to open the prerequisite of metal lead wire by the shock wave bomb of disconnector when reaching fault current in supply line, piston apparatus is introduced between metal lead wire and disconnector, make the connection of metal lead wire and disconnector tight, easily depart from again.In order to better make the connection of metal lead wire and disconnector tight, being provided with circular electroconductive elastic sheet in the outside of metal lead wire joint, making the connection of metal lead wire and disconnector tightr.
Accompanying drawing explanation
Fig. 1 is the structural representation under utility model works state;
Fig. 2 is the structural representation under the utility model malfunction;
Fig. 3 is the structural representation under disconnector operating state;
Fig. 4 is the structural representation under disconnector malfunction;
Fig. 5 is the connection diagram of metal lead wire and disconnector.
Embodiment
With reference to Fig. 1, Fig. 2, a kind of safety device for high-voltage power equipment being provided with shell fragment, comprise the insulation spacer bar 3 be arranged between left and right power supply buses 1,2, metal lead wire 4 is connected with between described insulation spacer bar 3 two ends, and the disconnector 6 that metal lead wire can flick under being provided with fault current by least one end at spacer bar both ends of insulating, described disconnector 6 one end is connected with insulation spacer bar 3 by fixture 5, the other end is connected with metal lead wire 4, is fixedly connected with the insulating support rod 7 preventing metal lead wire from kicking down ground connection below described metal lead wire 4.
Participate in Fig. 5, disconnector 6 is the cylindric cavity 9 of composition one, and metal lead wire 4 is the metal lead wire joint 41 of the round pie that its cavity 9 mates with the link of disconnector, and cavity 9 forms piston with metal lead wire joint 41 and is connected.The connection of metal lead wire 4 and disconnector 6 can be made so tight, have and easily come off.
In order to better make the connection of metal lead wire 4 and disconnector 6 tight, being provided with circular electroconductive elastic sheet 42 in the outside of metal lead wire joint 41, making the connection of metal lead wire 4 and disconnector 6 tightr.Electroconductive elastic sheet 42 can be metal material, preferably with beryllium-bronze or spring steel, because the elasticity of beryllium-bronze or spring steel is comparatively large, and tight better effects if.
In order to ensure the safety of power equipment, the both ends of described spacer bar 3 are equipped with disconnector 6, and like this, even if there is the disconnector of side to break down, the disconnector of opposite side still can work on.Described metal lead wire 4 is divided into two sections, and these the two sections connecting ears 8 arranged by insulating support rod 7 top realize electrical connection.Like this, under normal operating conditions, left and right power supply buses by metal lead wire 4 conducting, and works as circuit malfunctions, only needs the disconnector of replacing side and goes between.
Described fixture 5 is for being fixed on the hangers of spacer bar 3 end, and the design of this device is not limited to the scope of the present embodiment, as long as be convenient to disconnector to be connected between power supply buses and metal lead wire.
When the electric current in supply line reaches fault current, disconnector action, blows metal lead wire 4, goes between sagging under gravity, breaking circuit, current interruptions, thus the safety that ensure that power equipment in supply line.
With reference to Fig. 3, Fig. 4, disconnector in the present embodiment have employed heat explosion type, it comprises induction coil 61 and metal shell 62, is provided with the heating resistor 65 be electrically connected with induction coil 61 and explosive 63 in described metal shell 62, and described heating resistor 65 is connected by explosive train 64 with explosive 63.Explosive 63 is arranged in cavity 9.When supply line breaks down or is abnormal, in supply line, electric current raises, when reaching fault current, electric current flows through induction coil 61 and produces electromagnetism or electronic induction, exports energy and heating resistor 62 temperature is raised, thus light explosive train 64, utilize the shock wave of explosive 63 to be flicked by wire, by electric energy arc extinguishing, reach electric current instantaneous trip, realize failure stopping, guarantee the safety of power equipment in circuit.Explosive 63 is arranged in cavity 9, ensures that the disengaging of metal lead wire 4 and disconnector 6 is more smooth.
The utility model can meet high voltage electric power equip ment, the failure stopping of device as isallobaric in 66kV, 110kV, 220kV, 330kV, 500kV, 1000kV, also can be used as the insurance of high-power generator and associate power equipment.
Metal lead wire is opened by the shock wave bomb of disconnector when the utility model reaches fault current in supply line; go between sagging under gravity; depart from bus; thus reach the object of complete arc extinguishing and termination failure; and by the support of insulating support rod, sagging metal lead wire can not ground connection, has stopped potential safety hazard; achieve the overcurrent protection of power equipment, fill up the blank in high voltage electric power equip ment overcurrent safety field.When adopting bilateral disconnector, even if there is the disconnector of side to break down, the disconnector of opposite side still can work on, and further ensure that the safety of transformer, generator or other power equipments.
Claims (8)
1. one kind is provided with the safety device for high-voltage power equipment of shell fragment, it is characterized in that: comprise and be arranged on a left side, right power supply buses (1, 2) the insulation spacer bar (3) between, metal lead wire (4) is connected with between described insulation spacer bar (3) two ends, and the disconnector (6) that metal lead wire can flick under being provided with fault current by least one end at spacer bar both ends of insulating, described disconnector (6) one end is connected with insulation spacer bar (3) by fixture (5), the other end is connected with metal lead wire (4), described metal lead wire (4) below is fixedly connected with the insulating support rod (7) preventing metal lead wire from kicking down ground connection, disconnector (6) is the cylindric cavity (9) of composition one, metal lead wire (4) and the link of disconnector are the metal lead wire joint (41) of the round pie that its cavity (9) mates, cavity (9) forms piston with metal lead wire joint (41) and is connected, the outside of metal lead wire joint (41) is provided with circular electroconductive elastic sheet (42).
2., according to the safety device for high-voltage power equipment being provided with shell fragment described in claim 1, it is characterized in that described electroconductive elastic sheet (42) is metal material.
3., according to the safety device for high-voltage power equipment being provided with shell fragment described in claim 2, it is characterized in that the material of described electroconductive elastic sheet (42) is with beryllium-bronze or spring steel.
4., according to the safety device for high-voltage power equipment being provided with shell fragment described in claim 1, it is characterized in that the both ends of described spacer bar (3) are equipped with above-mentioned disconnector (6).
5. the safety device for high-voltage power equipment being provided with shell fragment according to claim 4, is characterized in that described metal lead wire (4) is divided into two sections, and these the two sections connecting ears (8) arranged by insulating support rod (7) top realize electrical connection.
6. the safety device for high-voltage power equipment being provided with shell fragment according to claim 5, is characterized in that: described fixture (5) is for being fixed on the hangers of spacer bar (3) end.
7. the safety device for high-voltage power equipment being provided with shell fragment according to the arbitrary claim of claim 1-6, is characterized in that: described disconnector (6) is thermal explosion disconnector.
8. according to the safety device for high-voltage power equipment being provided with shell fragment described in claim 7, it is characterized in that: described thermal explosion disconnector comprises induction coil (61) and metal shell (62), the heating resistor (65) and explosive (63) that are electrically connected with induction coil (61) is provided with in described metal shell (62), be connected by explosive train or detonator (64) between described heating resistor (65) with explosive (63), explosive (63) is arranged in cavity (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420742141.6U CN204332866U (en) | 2014-12-02 | 2014-12-02 | A kind of safety device for high-voltage power equipment being provided with shell fragment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420742141.6U CN204332866U (en) | 2014-12-02 | 2014-12-02 | A kind of safety device for high-voltage power equipment being provided with shell fragment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204332866U true CN204332866U (en) | 2015-05-13 |
Family
ID=53169192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420742141.6U Expired - Fee Related CN204332866U (en) | 2014-12-02 | 2014-12-02 | A kind of safety device for high-voltage power equipment being provided with shell fragment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204332866U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104505313A (en) * | 2014-12-02 | 2015-04-08 | 国家电网公司 | High-voltage power equipment safety device with elastic sheets |
-
2014
- 2014-12-02 CN CN201420742141.6U patent/CN204332866U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104505313A (en) * | 2014-12-02 | 2015-04-08 | 国家电网公司 | High-voltage power equipment safety device with elastic sheets |
| CN104505313B (en) * | 2014-12-02 | 2017-03-29 | 国家电网公司 | It is provided with the safety device for high-voltage power equipment of shell fragment |
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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: 20150513 Termination date: 20151202 |
|
| EXPY | Termination of patent right or utility model |