CN206211386U - A kind of ring main unit - Google Patents
A kind of ring main unit Download PDFInfo
- Publication number
- CN206211386U CN206211386U CN201621145895.9U CN201621145895U CN206211386U CN 206211386 U CN206211386 U CN 206211386U CN 201621145895 U CN201621145895 U CN 201621145895U CN 206211386 U CN206211386 U CN 206211386U
- Authority
- CN
- China
- Prior art keywords
- main unit
- gas tank
- ring main
- sealing gas
- cable
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 73
- 230000007246 mechanism Effects 0.000 claims description 14
- 239000000725 suspension Substances 0.000 claims description 5
- 238000009434 installation Methods 0.000 abstract description 18
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 4
- 238000013461 design Methods 0.000 description 9
- 238000009826 distribution Methods 0.000 description 6
- 229910018503 SF6 Inorganic materials 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 4
- 229960000909 sulfur hexafluoride Drugs 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000002274 desiccant Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000011017 operating method Methods 0.000 description 2
- 238000004078 waterproofing Methods 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model is applied to outdoor electrical equipment technical field, there is provided a kind of ring main unit, including：Sealing gas tank, is inside provided with the bus between power switch device, functional loop and functional loop；The cable vault of waterproof is sealed, the sealing gas tank outside is arranged on, the cable vault includes looped network inlet wire cable vault, looped network outlet cable room and outlet cable room；Transformer, independent switchgear house is assembled into the outlet cable room；Support, for setting up sealing gas tank and the switchgear house, is isolated with the mounting platform with the ring main unit.The ring main unit that the utility model is provided enormously simplify mounting process, and the installation of the ring main unit is not limited by orographic condition, and peace is torn open simple.
Description
Technical field
The utility model is related to outdoor electrical equipment technical field, more particularly to a kind of ring main unit.
Background technology
With continuing to develop for urban power distribution network, cable degree is gradually stepped up, and the application of ring main unit is also increasingly extensive, and
It is increasingly becoming the important component in power distribution network.Outdoor type ring main unit is due to possessing that maintenance workload is small, mounting means flexibly,
The advantages of good appearance, it is widely used during the reconstruction of power grid construction and city line.It is presently used
Outdoor type ring main unit primary structure is constituted by guard shield and positioned at the indoor type ring main unit of enclosure, such outdoor type
Need to build the infrastructure such as cable shaft, duct type cable duct well in advance when ring main unit is not only installed at the scene, but also to peace
(installing ground needs smooth etc., and such as existing ring main unit ground slightly injustice will result in door and beat not to fill the orographic condition of ring main unit
Open, panel deformation the problems such as) have more harsh requirement.
Utility model content
The utility model purpose is to provide a kind of ring main unit, it is intended to solve the outdoor type ring main unit existing for prior art
The problem harsh to mounting process, orographic condition (installation foundation) requirement.
The utility model provides a kind of ring main unit, including：Sealing gas tank, is inside provided with power switch device, functional loop
And the bus between functional loop；The cable vault of waterproof is sealed, the sealing gas tank outside is arranged on, the cable vault includes looped network
Inlet wire cable vault, looped network outlet cable room and outlet cable room；Transformer, independent distribution is assembled into the outlet cable room
Room；Support, for setting up sealing gas tank and the switchgear house, is isolated with the mounting platform with the ring main unit.
Specifically, the looped network inlet wire cable vault and the looped network outlet cable room are symmetricly set on outside the sealing gas tank
Opposite sides, the position of the outlet cable room is arranged on the external back surface of the sealing gas tank.
Specifically, positive operating mechanism room and the sealing gas tank also is located at including being arranged on the outside of the sealing gas tank
The secondary terminals interstar connection room of outer lateral side.
Specifically, the distance of the top edge of the secondary terminals interstar connection room and the frame bottom, and the operating mechanism
The guidance panel of room is 1.3~1.7 meters with the distance of the frame bottom.
Specifically, the bottom of the looped network inlet wire cable vault, the looped network outlet cable room and the outlet cable room sets
There is the cable trough for cable to be positioned.
Specifically, the inlet wire on-load switch in isosceles triangle arrangement, outlet on-load switch are provided with the sealing gas tank and are broken
Road device, the inlet wire on-load switch is symmetrical arranged with the outlet on-load switch.
Specifically, the inlet wire on-load switch, outlet on-load switch are connected by a disconnecting switch with the breaker.
Specifically, the sealing top of gas tank, bottom are respectively equipped with the charge valve that is connected with the sealing gas tank and let out
Pressure valve, is sealed between the charge valve, relief valve and the sealing gas tank by sealing ring.
Specifically, the charge valve is connected with a pressure gauge by a flexible pipe.
Specifically, the sealing gas tank is externally provided with least one suspension ring being fixedly connected with the sealing gas tank.
The ring main unit that the utility model is provided is improved by cabinet body structure, enormously simplify mounting process：Cable
The design of the waterproofing design, support isolation ring network cabinet body and mounting platform of room enables that the ring main unit is placed directly in outdoor fortune
OK, the operating procedure installed guard shield and build ground needed for guard shield is reduced；Transformer is directly done with ring main unit
Independent switchgear house is integrally constituted, without combination during installation, the function of convenient installation is realized；Also, due to the ring main unit
Can be set up by a support level and isolated with mounting platform, whether the mounting platform of the ring main unit smooth and size of area all
Can be overcome by changing the design of support, therefore the installation of the ring main unit is not limited by orographic condition, peace is torn open simple.
Brief description of the drawings
Fig. 1 is the front view of the ring main unit in the utility model preferred embodiment；
Fig. 2 is the right view of ring main unit illustrated in fig. 1；
Fig. 3 is the structural representation of sealing gas tank in ring main unit illustrated in fig. 1；
Fig. 4 is the guidance panel figure of operating mechanism room in ring main unit illustrated in fig. 1.
Specific embodiment
In order that the technical problems to be solved in the utility model, technical scheme and beneficial effect become more apparent, below
With reference to drawings and Examples, the utility model is further elaborated.It should be appreciated that specific implementation described herein
Example is only used to explain the utility model, is not used to limit the utility model.
The ring main unit of the present embodiment can be used for wind power plant, charging station, rural power grids city net overhead transmission line and change the occasions such as cable run,
For in ring network power supply system to electric power distribution, control etc..
Refer to Fig. 1 and Fig. 2, the ring main unit in the utility model preferred embodiment, including：Sealing gas tank 1, is inside provided with electricity
Bus between vehicle power switching device, functional loop and functional loop；The cable vault 2 of waterproof is sealed, the outside of sealing gas tank 1 is arranged on,
Cable vault 2 includes looped network inlet wire cable vault 21, looped network outlet cable room 22 and outlet cable room 23；Transformer (not shown in figure,
Transformer is arranged in outlet cable room 23) it is assembled into independent switchgear house 3 with outlet cable room 23；Support 4, it is close for setting up
Envelope gas tank 1 and switchgear house 3, are isolated with the mounting platform 5 with ring main unit.Generally, support 4 is will to set up sealing gas tank 1 and distribution
The level of room 3 is set up on mounting platform 5.Such setting enormously simplify mounting process：The waterproofing design of cable vault 2, support 4
Isolation ring network cabinet body enables that the ring main unit is placed directly in outdoor operation with the design of mounting platform 5, reduces installation anti-
The operating procedure of shield shell and ground needed for construction guard shield；Transformer and ring main unit are directly made of one composition independent
Switchgear house 3, without combination during installation, realizes the function of convenient installation；Also, because the ring main unit can be by the water of a support 4
Flatrack sets and isolates with mounting platform 5, and whether the mounting platform 5 of the ring main unit is smooth and size of area can be by changing
The design of support 4 overcomes, therefore the installation of the ring main unit do not limited by orographic condition, and peace is torn open simple.
In the present embodiment, the support seat surface of the seating plane (part being in contact with mounting platform 5) of support 4 and support 4
(with the part that is in contact of sealing gas tank 1) is parallel each other, and the seating plane of support 4 than supporting, the area of seat surface is big to be designed to
So that the placement of ring main unit and installation are more consolidated.If now when the ring main unit of the present embodiment is installed, making one
Cement plane, this will cause that the placement of outdoor ring main unit is more consolidated.In other embodiments, the seating plane of support 4 and support 4
Support seat surface mutual alignment relation or size, keep support 4 can level set up blanket gas case 1 and switchgear house 3
Under the premise of, can be according to whether the mounting platform 5 of the ring main unit of the present embodiment smooth and size of area is adjusted.
Especially, sealing gas tank 1 can be welded using 3.0mm high-quality stainless steel through laser cutting, numerical control bending, manipulator
Complete, and/or welding reinforcement in sealing gas tank 1, the sealing gas tank 1 manufactured by above-mentioned technique not only waterproof durable, and
Can also ensure that sealing gas tank 1 is unlikely to deform when vacuumizing, inflating.
By the ring main unit that the present embodiment is provided need not add guard shield, it also overcomes existing outdoor type ring main unit
The problem of moisture condensation between guard shield and ring main unit, it has the advantages that moistureproof ventilation, and the looped network in the present embodiment
Cabinet can use open cable installing space, the cable peace not limited by the space between guard shield and indoor type ring main unit
Dress mode is convenient, efficient, convenient.
Additionally, the cable vault 2, switchgear house 3, the conceptual design of the sealing integration of gas tank 1 in the present embodiment greatly reduce
The appearance and size of ring main unit so that the volume of ring main unit reduces, its development trend for having met controller switching equipment miniaturization.Especially
Ground, the switchgear house 3 in the present embodiment is high-tension distribution chamber of converting.
Further, as shown in figure 1, looped network inlet wire cable vault 21 and looped network outlet cable room 22 are symmetricly set on blanket gas
Opposite sides outside case 1, the position of outlet cable room 23 is arranged on the external back surface of sealing gas tank 1.In this way, entering by looped network
Line cable vault 21, looped network outlet cable room 22 and outlet cable room 23 are arranged on the three different faces in outside of sealing gas tank 1, real
Show purpose of each cable vault's functional module positioned at the ad-hoc location of ring main unit, on the one hand improve the space utilization of ring main unit
Rate, it is more orderly that another aspect also causes that the access of cable picks out operation.
Further, as depicted in figs. 1 and 2, also include being arranged on the positive operation in outside of sealing gas tank 1 in the present embodiment
Mechanism chamber 6 and the secondary terminals interstar connection room 7 for being located at the sealing outer lateral side of gas tank 1.
It is to be appreciated that the direction or position relationship indicated by " just ", " back of the body " in the application are based on Fig. 1 and Fig. 2
Shown orientation or position relationship, or can be understood as to seal the door-plate of gas tank 1 is the position relationship based on front, is only
For the ease of description the application or simplify description, rather than indicating or imply signified device or that element must have is specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that limitation to the application.
Further, as depicted in figs. 1 and 2, in the present embodiment the top edge of secondary terminals interstar connection room 7 (secondary terminals connect
The edge of the top surface of line room 7) with the bottom of the support 4 away from distance, and operating mechanism room 6 guidance panel 61 and the bottom of support 4
The distance in portion is 1.3~1.7 meters.In addition, in the present embodiment secondary terminals interstar connection room 7 top edge (secondary terminals interstar connection room 7
The edge of top surface) it is mounted opposite the height of platform 5 and the height of the guidance panel 61 relative to mounting platform 5 of operating mechanism room 6
It is basically identical.
When the distance of top edge and the bottom of the support 4 of secondary terminals interstar connection room 7, and operating mechanism room 6 operating surface
Plate 61 is 1.3~1.7 meters with the distance of the bottom of support 4, is especially suitable for installation personnel/operating personnel's wiring, and for sealing
The contents such as wiring, wire size in gas tank 1 can be with very clear, and installation personnel/operating personnel can be substantially in sustained height
Secondary terminals interstar connection room 7 and operating mechanism room 6 are operated, installation personnel/operating personnel do not need multiple ascending stair or bend
Secondary terminals interstar connection room 7 and operating mechanism room 6 are operated, the design of this hommization facilitates installation personnel/operator
The operation of member.
In the present embodiment, as shown in figure 1, secondary terminals interstar connection room 7 is located at the upper left side of sealing gas tank 1, this set
Joint connection in site cable can be facilitated.
In the present embodiment, as depicted in figs. 1 and 2, looped network inlet wire cable vault 21, looped network outlet cable room 22, outlet electricity
Cable room 23 is arranged on the four different faces in outside of sealing gas tank 1 with operating mechanism room 6, and such being provided with is beneficial to ring main unit
Center of gravity vertical direction projection fall in the supporting surface of ring main unit (face being in contact with the supporting surface of support 4), such energy
The balance of ring main unit is enough realized, so as to further ensure the stability of ring main unit installation.
Further, as depicted in figs. 1 and 2, looped network inlet wire cable vault 21, looped network outlet cable room 22 and outlet cable room
23 bottom is provided with the cable trough 8 for cable to be positioned.The setting of cable trough 8 is protected and supported to cable, it is to avoid
When the ring main unit is installed removal cable it is improper caused by cable breakage or damage.
Especially, the present embodiment lays scheme using the straight paving formula of cable, it is not necessary to special cable channel, more need not
Build special cable shaft, subsequently to the maintenance of cable with safeguard by doing corresponding mark at straight paving formula cable duct by fact
Existing, this will energetically save the cost required for installing and safeguarding outdoor ring main unit.
Further, as shown in figure 3, being provided with the inlet wire on-load switch 11, outlet arranged in isosceles triangle in sealing gas tank 1
On-load switch 12 and breaker 13, inlet wire on-load switch 11 are symmetrical arranged with outlet on-load switch 12.The present embodiment is by negative
Lotus switch with the optimization of the relative position of breaker 13, can reduce connected load switch and breaker 13 bus usage amount and then
It is cost-effective, and inlet wire on-load switch 11, outlet on-load switch 12 and breaker 13 take full advantage of in the construction of isosceles triangle
The space of sealing gas tank 1 inside, this construction is by 3 components compressions of installation units the need in existing design installed in 2
In the space of individual unit, the sealing gas tank 1 of small volume installs soil and sky that ring main unit is used in can improving the present embodiment
Between utilization rate, this miniaturization grid equipment market in more occupy competitive advantage.
Further, as shown in figure 3, inlet wire on-load switch 11, outlet on-load switch 12 by a disconnecting switch 14 with
Breaker 13 is connected.Carried out come the transformer to user by the cooperation of disconnecting switch 14 and the separating brake of breaker 13 and closing operation
Protection and control.
In the present embodiment, inlet wire on-load switch 11 is symmetrically mounted on the bottom of sealing gas tank 1 with outlet on-load switch 12,
It is connected on the static contact of disconnecting switch 14 by bus, the outlet terminal of disconnecting switch 14 is connected to going out for breaker 13 by bus
On line seat, the outlet terminal of breaker 13 is connected to outlet insulated terminal by bus.During normal work, inlet wire on-load switch 11,
Outlet on-load switch 12 is in closing position, is opened or closed to protect user transformers and controlled by breaker 13
System.When needing to overhaul user transformers, cut-off breaker 13 is simultaneously operated to earthing position disconnecting switch 14, now
User side is completely isolated with ring network power supply circuit, just the loops such as the transformer of user side can be overhauled and safeguarded.Especially
Ground, breaker 13 in the present embodiment is vacuum circuit breaker or sulfur hexafluoride breaker, inlet wire on-load switch 11 and goes out specific electric load
Switch 12 uses dual-port arc extinguishing structure, with more reliable connecting-disconnecting function.
Especially, the inlet wire insulated terminal of gas tank 11, ring are sealed such as Fig. 3 and Fig. 4, in the present embodiment to go out on insulated terminal
Voltage charged display device (not shown) is provided with, operating mechanism room 6 is provided with band corresponding with voltage charged display device
Electric display (not shown), whether it is more accurate to the powered judgement of ring main unit that such setting is caused.
In the present embodiment, inlet wire insulated terminal and ring go out insulated terminal by way of being flexible coupling respectively with enter specific electric load
The leading-out terminal connection of the end of incoming cables, outlet on-load switch 12 of switch 11.
In the present embodiment, mechanical latching (not shown) can be provided between breaker 13 and disconnecting switch 14.Pass through
Mechanical latching realizes the interval operation of breaker 13 and disconnecting switch 14, i.e. breaker 13 only can just be entered in open position
The closing operation of row disconnecting switch 14, when breaker 13 is in closing position, disconnecting switch 14 is locked.
Further, as shown in figure 3, the top of sealing gas tank 1, bottom are respectively equipped with the inflation connected with sealing gas tank 1
Valve 15 and relief valve 16, are sealed between charge valve 15, relief valve 16 and sealing gas tank 1 by sealing ring.Set in the present embodiment
The sealing gas tank 1 put can be passed through the insulation arc quenching effect that sulfur hexafluoride keeps good by charge valve 15, due to sulfur hexafluoride
It is heavier than air, therefore charge valve 15 and relief valve 16 is separately positioned on the top and bottom of sealing gas tank 1 so that sealing gas tank
1 it is inflated for deflated efficiently convenient, and the setting of sealing ring between charge valve 15, relief valve 16 and sealing gas tank 1 enters one
Step ensure that the sealing of sealing gas tank 1, and relief valve 16 can keep sealing gas tank 1 air pressure to be in safe range, it is easy to safeguard.
Further, as shown in Figure 3 and Figure 4, the pressure gauge of charge valve 15 and is connected by a flexible pipe (not shown)
Connect.Pressure gauge can monitor the density of the sulfur hexafluoride in sealing gas tank 1.
In the present embodiment, charge valve 15 has self-styled function, i.e., when needing inflated for deflated, by gas-tpe fitting
Thimble open the valve of charge valve 15 completing inflation/deflation；After removing gas tube, the charge valve 15 under the control of valve inner spring
Valve is closed, and gas channel disconnects inside and outside sealing gas tank 1, it is ensured that equipment is air tight；After loading onto pressure gauge, pressure gauge afterbody top is opened
The valve of charge valve 15, gas can enter pressure gauge.
Further, as depicted in figs. 1 and 2, sealing gas tank 1 is externally provided with least one and is fixedly connected with gas tank 1 is sealed
Suspension ring 17.When installing the outdoor ring main unit of the present embodiment at the scene, installation personnel is by manipulator through suspension ring 17 so as to sling
Or place the move mode convenient and efficient of ring main unit.In the present embodiment, the number of suspension ring 17 is 2.
Especially, the bottom of sealing gas tank 1 is placed with drier.Drier dehumidifies to sealing gas tank 1, it is ensured that looped network
Air inside cabinet keeps drying.Drier can be active mineral drier, fiber desiccant, molecular sieve desiccant, clay
One or more in drier, silica gel.
Fig. 3 is refer to, the grounding connection loop 18 of gas tank 1 and the shell of sealing gas tank 1 and the ground connection of cable vault 2 is sealed
Layer be connection, by people to be touched place all carry out reliable ground substantially increase ring main unit operation with run safety can
By property.
The figure of guidance panel 61 of the operating mechanism room 6 of the utility model embodiment is as shown in figure 4, guidance panel 61 sets successively
It is equipped with breaker operator region 611, isolator operation region 612 and on-load switch operating area, on-load switch operating area
Including loop wire on-load switch operating area 613 and inlet wire on-load switch operating area 614, pressure gauge 615 is located at guidance panel 61
Upper left side, circuit connecting relation of the analog bus of analog bus 616 in blanket gas 1.
Fig. 1 and Fig. 4 is refer to, connecting terminal block 71 is provided with the present embodiment, in secondary terminals interstar connection room 7, operating personnel/
Installation personnel will be plugged on connecting terminal block 71 for the binding post of external device.Inlet wire cable goes out through cable trough 8, ring
Be input into power supply signal in sealing gas tank 1 by inlet wire cable plug 211 simultaneously by inlet wire cable vault 21, and power supply signal is by blanket gas
Go out outside the output sealing gas tank 1 of cable plug 221 by ring after the treatment of case 1.
Preferred embodiment of the present utility model is the foregoing is only, is not used to limit the utility model, it is all at this
Any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (10)
1. a kind of ring main unit, it is characterised in that including：
Sealing gas tank, is inside provided with the bus between power switch device, functional loop and functional loop；
The cable vault of waterproof is sealed, the sealing gas tank outside is arranged on, the cable vault includes looped network inlet wire cable vault, looped network
Outlet cable room and outlet cable room；
Transformer, independent switchgear house is assembled into the outlet cable room；
Support, for setting up sealing gas tank and the switchgear house, is isolated with the mounting platform with the ring main unit.
2. ring main unit as claimed in claim 1, it is characterised in that the looped network inlet wire cable vault and the looped network outlet cable
Room is symmetricly set on the opposite sides outside the sealing gas tank, and the position of the outlet cable room is arranged on the sealing gas tank
External back surface.
3. ring main unit as claimed in claim 1, it is characterised in that also including being arranged on positive behaviour on the outside of the sealing gas tank
Make mechanism chamber and be located at the secondary terminals interstar connection room of the sealing gas tank outer lateral side.
4. ring main unit as claimed in claim 3, it is characterised in that the top edge of the secondary terminals interstar connection room and the support
The distance of bottom, and the guidance panel of the operating mechanism room and the distance of the frame bottom are 1.3~1.7 meters.
5. ring main unit as claimed in claim 1, it is characterised in that the looped network inlet wire cable vault, the looped network outlet cable
The bottom of room and the outlet cable room is provided with the cable trough for cable to be positioned.
6. the ring main unit as described in any one of claim 1 to 5, it is characterised in that be provided with isosceles triangle in the sealing gas tank
The inlet wire on-load switch of arrangement, outlet on-load switch and breaker, the inlet wire on-load switch and the outlet on-load switch pair
Claim to set.
7. ring main unit as claimed in claim 6, it is characterised in that the inlet wire on-load switch, outlet on-load switch pass through
Disconnecting switch is connected with the breaker.
8. the ring main unit as described in any one of claim 1 to 5, it is characterised in that the top of the sealing gas tank, bottom difference
The charge valve and relief valve connected with the sealing gas tank are provided with, are led between the charge valve, relief valve and the sealing gas tank
Cross sealing ring sealing.
9. ring main unit as claimed in claim 8, it is characterised in that the charge valve is connected with a pressure gauge by a flexible pipe.
10. the ring main unit as described in any one of claim 1 to 5, it is characterised in that the sealing gas tank is externally provided with least one
The suspension ring being fixedly connected with the sealing gas tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621145895.9U CN206211386U (en) | 2016-10-20 | 2016-10-20 | A kind of ring main unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621145895.9U CN206211386U (en) | 2016-10-20 | 2016-10-20 | A kind of ring main unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206211386U true CN206211386U (en) | 2017-05-31 |
Family
ID=58757196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621145895.9U Expired - Fee Related CN206211386U (en) | 2016-10-20 | 2016-10-20 | A kind of ring main unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206211386U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106329381A (en) * | 2016-10-20 | 2017-01-11 | 莱福士电力电子设备（深圳）有限公司 | Ring main unit |
-
2016
- 2016-10-20 CN CN201621145895.9U patent/CN206211386U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106329381A (en) * | 2016-10-20 | 2017-01-11 | 莱福士电力电子设备（深圳）有限公司 | Ring main unit |
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