CN207947547U - A kind of pressure relief for ring main unit - Google Patents
A kind of pressure relief for ring main unit Download PDFInfo
- Publication number
- CN207947547U CN207947547U CN201820374254.3U CN201820374254U CN207947547U CN 207947547 U CN207947547 U CN 207947547U CN 201820374254 U CN201820374254 U CN 201820374254U CN 207947547 U CN207947547 U CN 207947547U
- Authority
- CN
- China
- Prior art keywords
- main unit
- ring main
- main body
- pressure relief
- bus
- 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
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- Gas-Insulated Switchgears (AREA)
Abstract
The utility model discloses a kind of pressure reliefs for ring main unit, including ring main unit main body, the interior side of the ring main unit main body is provided with holder, the side of the holder is provided with support insulator, the support insulator is fixedly connected with ring main unit main body by nut, it is provided with current transformer below the support insulator, and current transformer is fixedly connected with ring main unit main body by nut, it is provided with high-tension fuse above the support insulator, it is provided with bus-bar room above the ring main unit main body, the side of the bus-bar room is provided with headlamp, the inside of the bus-bar room is fixedly connected with busbar by nut；It is convenient for ring main unit maintenance used in everyday by devising novel pressure relief device, solves the design that existing pressure relief uses rupture pressure disc, ring main unit is reused after rupture pressure disc is washed open by high pressure gas will replace rupture pressure disc, increase maintenance difficulties and maintenance cost.
Description
Technical field
The utility model belongs to ring main unit technical field, and in particular to a kind of pressure relief for ring main unit.
Background technology
Looped network refers to ring distribution system, i.e., supply lines forms the annular of a closure, and power supply is supplied to this toroid
Electricity passes through the outside distribution of high-voltage switch gear all the way again from line.Such benefit is, each distribution branch both can be from
Its left side line takes power supply, and can take power supply from its right-hand line.When left side, line is out of order, it just continues to obtain from right-hand line
Power supply, and when right-hand line is out of order, just from left side, line continues to be powered for it, so, is supplied although general supply is single channel
Electricity, but obtained similar to the material benefit supplied power with double circuit, to improve the reliability of power supply for each distribution branch.
Existing ring main unit pressure relief device by SF6 gases importing underground piping for the ease of being arranged at the bottom of ring main unit
Portion is not easy to the inspection of maintenance personnel, without apparent alarming device after rupture pressure disc is washed open by high pressure gas, is easy to allow
Operating personnel take for the problem of machine is normal condition, thus it is proposed that a kind of pressure relief for ring main unit.
Utility model content
The purpose of this utility model is to provide one kind, to solve to propose existing ring main unit pressure release in above-mentioned background technology
Device is not easy to the inspection of maintenance personnel, i.e., for the ease of SF6 gases importing underground piping to be arranged to the bottom of ring main unit
Also without apparent alarming device after making rupture pressure disc be washed open by high pressure gas, it is easy that operating personnel is allowed to take for machine to be normal shape
The problem of state.
To achieve the above object, the utility model provides the following technical solutions：A kind of pressure relief for ring main unit, packet
Ring main unit main body is included, the interior side of the ring main unit main body is provided with holder, and the side of the holder is provided with support insulation
Son, the support insulator are fixedly connected with ring main unit main body by nut, and electric current is provided with below the support insulator
Mutual inductor, and current transformer is fixedly connected with ring main unit main body by nut, and height is provided with above the support insulator
Fuse is pressed, is provided with bus-bar room above the ring main unit main body, the side of the bus-bar room is provided with headlamp, the mother
The inside of line room is fixedly connected with busbar by nut, and the top of the busbar is fixedly connected by nut is provided with warning light,
The warning light is fixedly connected with bus-bar room by nut, and the side of the warning light is provided with pressure relief device main body, described to let out
Air admission hole is provided with below pressure device main body, the side of the pressure relief device main body is provided with gas vent, the pressure relief device
The other side of main body, which is fixedly connected by welding, warning lamp switch, and valve is provided with above the pressure relief device main body.
Preferably, the whole height of the warning lamp switch is bigger 5mm than the distance between valve to bus-bar room.
Preferably, the internal diameter of the air admission hole is more than the internal diameter of gas vent.
Preferably, the air admission hole is both provided with anti-gas-leak with bus-bar room connecting portion and gas vent with pipe connection portion position
Rubber pad.
Preferably, the warning light is internally provided with jingle bell alarm device.
Compared with prior art, the utility model has the beneficial effects that：
(1) it is mounted with that novel pressure relief device is convenient for ring main unit maintenance used in everyday by devising, solves existing
Pressure relief use rupture pressure disc design, reused after rupture pressure disc is washed open by high pressure gas ring main unit will replace it is explosion-proof
Film increases maintenance difficulties and maintenance cost.
(2) by devise be mounted with warning light and it is ingenious be utilized opened with pressure relief device by open warning lamp open
It closes, solves existing ring main unit pressure relief device for the ease of SF6 gases importing underground piping to be arranged to the bottom of ring main unit
Portion is not easy to the inspection of maintenance personnel, without apparent alarming device after rupture pressure disc is washed open by high pressure gas, is easy to allow
Operating personnel take for the problem of machine is normal condition.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model ring main unit；
Fig. 2 is the structural schematic diagram of the utility model relief pipeline；
In figure：1- busbares, 2- air admission holes, 3- high-tension fuses, 4- support insulators, 5- current transformers, 6- warning lights,
7- pressure relief devices main body, 8- bus-bar rooms, 9- headlamps, 10- ring main units main body, 11- holders, 12- valves, 13- warning lamps are opened
It closes, 14- gas vents.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
It please refers to Fig.1 and Fig. 2, the utility model provides a kind of technical solution：A kind of pressure relief for ring main unit, packet
Ring main unit main body 10 is included, the interior side of ring main unit main body 10 is provided with holder 11, and the side of holder 11 is provided with support insulation
Son 4, support insulator 4 is fixedly connected with ring main unit main body 10 by nut, and the lower section of support insulator 4 is provided with Current Mutual Inductance
Device 5, and current transformer 5 is fixedly connected with ring main unit main body 10 by nut, the top of support insulator 4 is provided with high-voltage fuse
Disconnected device 3, the top of ring main unit main body 10 are provided with bus-bar room 8, and the side of bus-bar room 8 is provided with headlamp 9, bus-bar room 8 it is interior
Portion is fixedly connected with busbar 1 by nut, and the top of busbar 1 is fixedly connected by nut is provided with warning light 6, warning light 6 with
Bus-bar room 8 is fixedly connected by nut, and the side of warning light 6 is provided with pressure relief device main body 7, the lower section of pressure relief device main body 7
It is provided with air admission hole 2, the side of pressure relief device main body 7 is provided with gas vent 14, and the other side of pressure relief device main body 7 passes through welding
It is fixedly connected with warning lamp switch 13, the top of pressure relief device main body 7 is provided with valve 12
For the ease of the normal work of warning light 6, in the present embodiment, it is preferred that the whole height ratio of warning lamp switch 13
Valve 12 arrives the big 5mm of the distance between bus-bar room 8.
It is preferably vented for the ease of pressure relief device, in the present embodiment, it is preferred that the internal diameter of air admission hole 2 is more than gas vent
14 internal diameter.
There is better seal for the ease of ring main unit, in the present embodiment, it is preferred that air admission hole 2 is connect with bus-bar room 8
Position and gas vent 14 are both provided with anti-gas-leak rubber pad with pipe connection portion position.
Better warning function is played for the ease of warning light 6, in the present embodiment, it is preferred that 6 inside setting of warning light
There is jingle bell alarm device.
The operation principle and process for using of the utility model：All charging members, switch and actuating in the novel looped network cabinet
Mechanism is enclosed in the gas chamber of stainless steel, and using vacuum extinction, SF6 gas-insulateds are filled with supplementary insulation in seal box
SF6 gases, just in case when internal arcing failure occurs, will produce high-pressure gas when machine operation inside ring main unit main body 10,
High-pressure gas can be open-top by the valve 12 of the top of pressure relief device main body 7, releases stress, and high-pressure gas is from air admission hole 2 at this time
Gas is discharged from gas vent 14 again into pressure relief device, while gas is discharged into trench to ensure operating personnel by pressure release passage
Safety, by devise be mounted with novel pressure relief device be convenient for ring main unit maintenance used in everyday, solve existing let out
Laminated structure uses the design of rupture pressure disc, and ring main unit is reused after rupture pressure disc is washed open by high pressure gas will replace rupture pressure disc,
Maintenance difficulties and maintenance cost are increased, at the same time while valve 12 is open-top by high pressure gas, warning lamp switch 13
One end metal catheter can lose with valve 12 and contact, and warn lamp switch 13 to be in an open state at this time, warning light 6 and jingle bell alarm dress
It sets and works at the same time, even if maintenance personnel is reminded to safeguard ring main unit, unnecessary loss can be reduced to a certain extent.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of pressure relief for ring main unit, including ring main unit main body (10), it is characterised in that：The ring main unit main body
(10) interior side is provided with holder (11), and the side of the holder (11) is provided with support insulator (4), described to support absolutely
Edge (4) is fixedly connected with ring main unit main body (10) by nut, and Current Mutual Inductance is provided with below the support insulator (4)
Device (5), and current transformer (5) is fixedly connected with ring main unit main body (10) by nut, the top of the support insulator (4)
It is provided with high-tension fuse (3), is provided with bus-bar room (8) above the ring main unit main body (10), the one of the bus-bar room (8)
Side is provided with headlamp (9), and the inside of the bus-bar room (8) is fixedly connected with busbar (1) by nut, the busbar (1)
Top is fixedly connected by nut is provided with warning light (6), and the warning light (6) is fixedly connected with bus-bar room (8) by nut,
The side of the warning light (6) is provided with pressure relief device main body (7), and air inlet is provided with below the pressure relief device main body (7)
The side in hole (2), the pressure relief device main body (7) is provided with gas vent (14), and the other side of the pressure relief device main body (7) is logical
It crosses to be welded and fixed and is connected with warning lamp switch (13), valve (12) is provided with above the pressure relief device main body (7).
2. a kind of pressure relief for ring main unit according to claim 1, it is characterised in that：The warning lamp switch
(13) whole height is than the big 5mm of the distance between valve (12) to bus-bar room (8).
3. a kind of pressure relief for ring main unit according to claim 1, it is characterised in that：The air admission hole (2)
Internal diameter is more than the internal diameter of gas vent (14).
4. a kind of pressure relief for ring main unit according to claim 1, it is characterised in that：The air admission hole (2) with
Bus-bar room (8) connecting portion and gas vent (14) are both provided with anti-gas-leak rubber pad with pipe connection portion position.
5. a kind of pressure relief for ring main unit according to claim 1, it is characterised in that：In the warning light (6)
Portion is provided with jingle bell alarm device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820374254.3U CN207947547U (en) | 2018-03-20 | 2018-03-20 | A kind of pressure relief for ring main unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820374254.3U CN207947547U (en) | 2018-03-20 | 2018-03-20 | A kind of pressure relief for ring main unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207947547U true CN207947547U (en) | 2018-10-09 |
Family
ID=63698081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820374254.3U Expired - Fee Related CN207947547U (en) | 2018-03-20 | 2018-03-20 | A kind of pressure relief for ring main unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207947547U (en) |
-
2018
- 2018-03-20 CN CN201820374254.3U patent/CN207947547U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181009 Termination date: 20210320 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |