CN105006335B - A kind of oil-immersed hollow self-cooled neutral grounding reactor - Google Patents
A kind of oil-immersed hollow self-cooled neutral grounding reactor Download PDFInfo
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- CN105006335B CN105006335B CN201510351042.4A CN201510351042A CN105006335B CN 105006335 B CN105006335 B CN 105006335B CN 201510351042 A CN201510351042 A CN 201510351042A CN 105006335 B CN105006335 B CN 105006335B
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Abstract
The present invention relates to oil-immersed hollow self-cooled neutral grounding reactor, including fuel tank and device body；Device body includes coil and is located at the upper aluminium sheet and lower aluminum sheet of coil upper and lower side respectively, pressing plate and end circle are filled between upper aluminium sheet and coil, supporting plate and end circle are filled between lower aluminum sheet and coil, whole device body is connected by feet with tank bottoms, and the case lid of fuel tank upper end is connected as a single entity by device body pull bar with device body；Described device body pull bar is electrically connected with corresponding feet, is insulated between feet, and wherein at least one device body pull bar is realized with upper aluminium sheet, lower aluminum sheet and is electrically connected；Each feet has a device body pull bar to be electrically connected with case lid, and case lid realizes single-point grounding through fuel tank.The present invention is ingenious in design, possessing loss, small, temperature rise is low, the good characteristic that partial discharge is small, noise is small, can avoid because there is short-circuited conducting sleeve or multipoint earthing in interiors of products and caused by equipment fault, earthed system is reliable and is easy to operation, with higher economy and security and stability.
Description
Technical field
The present invention relates to a kind of electric network protection equipment, and in particular to one kind is connected between system and the earth, for limiting system
The oil-immersed hollow self-cooled neutral grounding reactor of earth current during failure of uniting.
Background technology
High-voltage shunt reactor uses star connection, and road ground connection event may occur for three-phase reactor once in operation
Barrier, now the neutral point of three-phase reactor will appear from earth current, if concatenating a neutral point again at star-star connection neutral point
Earthing reactor, compensated line is alternate and direct-to-ground capacitance, makes to tend to be infinitely great relative to ground impedance, eliminates secondary arc current and indulge component
To accelerate the automatic distinguishing of secondary arc current, this when, neutral grounding reactor just served protective effect.And commonly use at present
Neutral grounding reactor internal structure include coil, upper aluminium sheet, lower aluminum sheet, supporting plate, end circle, pressing plate, feet, device body drawing
Bar, wherein upper aluminium sheet, lower aluminum sheet, feet, device body pull bar are required to be grounded respectively, this earthing mode is complicated, is difficult production
And installation, and the problem of easy generation multipoint earthing and short-circuited conducting sleeve, cause equipment to produce failure.
The content of the invention
It can avoid making because interiors of products short-circuited conducting sleeve or multipoint earthing occurs in view of the above-mentioned problems, the present invention provides one kind
The oil-immersed hollow self-cooled neutral grounding reactor of forming apparatus failure.1st, to solve the above problems, the technology that the present invention takes
Scheme is：A kind of oil-immersed hollow self-cooled neutral grounding reactor, it is characterised in that：Device including fuel tank and in fuel tank
Body；Described device body includes coil and is located at the upper aluminium sheet and lower aluminum sheet of coil upper and lower side respectively, between upper aluminium sheet and coil
Pressing plate and end circle are filled, supporting plate and end circle are filled between lower aluminum sheet and coil, device body is connected by feet with tank bottoms, fuel tank
The case lid of upper end is connected as a single entity by device body pull bar with device body；Described inner wall of oil tank be provided with aluminum barrel, aluminum barrel by fixed plate with
Fuel tank tank wall is electrically connected；Described device body pull bar is electrically connected with corresponding feet, is insulated between feet, wherein at least one
Individual device body pull bar is realized with upper aluminium sheet, lower aluminum sheet and is electrically connected；Each feet has a device body pull bar to be electrically connected with case lid,
Case lid realizes single-point grounding through fuel tank.End circle, pressing plate and the supporting plate at coil two ends belong to overhang insulation system, wherein
End circle is made up of multilayer, and serving segmentation oil clearance increases the effect of dielectric strength, and pressing plate and supporting plate are increasing coil to two
While holding hardware insulation distance, clamping and the effect of forcing to submit also are served to two ends end circle, it is ensured that end circle is fixed.
Coil, end circle, pressing plate, upper aluminium sheet, lower aluminum sheet and feet by non-magnetic device body pull bar by bolt be fixed as one it is whole
Body, as device body.Device body is fixed together by device body pull bar and case lid；Device body bottom is seated in oil tank bottom by feet
Portion.
Described feet includes the first feet and the second feet of mutually insulated, and described device body pull bar includes the first device body
Pull bar, the second device body pull bar, the 3rd device body pull bar and the 4th device body pull bar；Wherein, the first device body pull bar and the second device body pull bar
It is electrically connected with the first feet, the 3rd device body pull bar and the 4th device body pull bar and the second feet are electrically connected；Case lid and the first device
The first insulating part is provided between body pull bar, the 3rd device body pull bar, case lid electrically connects with the second device body pull bar, the 4th device body pull bar
Connect；Between upper aluminium sheet and the first device body pull bar, the 3rd device body pull bar, the 4th device body pull bar be provided with the second insulating part, upper aluminium sheet with
Second device body pull bar is electrically connected；The 3rd insulating part is equipped between lower aluminum sheet and four device body pull bars；Lower aluminum sheet and two feets
Between be provided with the 4th insulating part, lower aluminum sheet is reliably electrically connected by connecting line with the first feet；Between two feets and fuel tank
Provided with the 5th insulating part.Four device body pull bars are by thin nut, high nut, are fastened in feet, and two nuts are matched somebody with somebody
Close to use to possess and loosen function, make connection more reliable.Lower aluminum sheet and the first feet are electrically connected, and the first feet passes through the second device body
Pull bar is grounded.
Prevent leakage field from entering the structural members such as fuel tank, case lid, feet and producing superheating phenomenon, the aluminum barrel and upper aluminium sheet, lower aluminium
Plate shape is into shielding harness.Fuel tank be cylindrical structure, be close to inner wall of oil tank be disposed with aluminum cylinder as shielding, with coil above and below
The aluminium sheet at both ends forms whole shielding harness.
The coil is simplex winding inner screen continuous winding, and winding protruding head passes through lead and sleeve pipe connection.Coil is continuous
Formula end outlet structure, head end is in top outlet, according to national standard and technology requirement of invitation for bid, and end is divided into third gear and gone out in bottom
Line, has third gear optional so as to realize the reactance value of equipment.The head end of one head end sleeve pipe and three end sleeve pipes respectively with inside
Outlet and end outlet connection.Head end sleeve pipe is connected by line with the neutral point of system, and end sleeve pipe needs choosing according to user
One is connected by related line with earth mat.Coil has placer body skeleton inside inner bracing strip and paper web, paper web.Head end sleeve pipe leads to
Rise seat is crossed on fuel tank, rise seat is used for raising head end sleeve pipe, increases the distance with other inside and outside parts, with full
The inside and outside portion's insulation distance requirement of foot.
The case lid top of the fuel tank is provided with oil conservater.Oil conservater is installed at the top of reactor, it leads between fuel tank
Pipeline connection is crossed, when volume has increased and decreased the insulating oil in fuel tank with temperature change, oil conservater just serves supply and made
With, it is ensured that internal oil pressure is constant.It is for collecting the case with the various secondary lines of transfer that wiring terminal box is also hung with fuel tank
Son.To cool to reactor body, the fuel tank is connected with gilled radiator by pipe joint.
The present invention is simple in construction, easy to use, ingenious in design, possesses that to be lost that small, temperature rise is low, partial discharge is small, noise is small excellent
Good characteristic, can avoid because there is short-circuited conducting sleeve or multipoint earthing in interiors of products and caused by equipment fault, earthed system is reliably and just
In operation, with higher economy and security and stability, enable product safe operation reliably and with long-term.
Brief description of the drawings
Fig. 1 is the internal structure schematic diagram of the present invention；
Fig. 2 is the external structure front view of the present invention；
Fig. 3 is the external structure left view of the present invention；
Fig. 4 is the internal ground structure schematic diagram of the present invention；
Fig. 5 is Fig. 4 A-A views；
Fig. 6 is the first device body pull bar, the 3rd device body pull bar top connection figure；
Fig. 7 is the second device body pull bar top connection figure；
Fig. 8 is the 4th device body pull bar top connection figure；
Fig. 9 is device body pull bar bottom connection figure；
Wherein, 1, case lid, 2, head end tap lead wire, 3, device body pull bar, 3a, the first device body pull bar, 3b, the second device body are drawn
Bar, 3c, the 3rd device body pull bar, 3d, the 4th device body pull bar, 4, pressing plate, 5, end circle, 6, end tap lead wire, 7, coil, 8, support
Plate, 9, fuel tank, 10, upper aluminium sheet, 11, aluminum barrel, 12, lower aluminum sheet, 13, feet, 13a, the first feet, 13b, the second feet, 14, storage
Oil Tank, 15, head end sleeve pipe, 16, rise seat, 17, end sleeve pipe, 18, gilled radiator, 19 wiring terminal boxes, 20, fixed plate,
21st, the first insulating part, the 22, second insulating part, the 23, the 3rd insulating part, the 24, the 4th insulating part, the 25, the 5th insulating part, 26, thin spiral shell
Mother, 27, high nut, 28, packing ring, 29, connecting line.
Embodiment
A kind of oil-immersed hollow self-cooled neutral grounding reactor, including fuel tank 9 and the device body in fuel tank；Described
Device body includes coil 7 and is located at the upper aluminium sheet 10 and lower aluminum sheet 12 of the upper and lower side of coil 7 respectively, between upper aluminium sheet 12 and coil 7
Pressing plate 4 and end circle 5 are filled, supporting plate 8 and end circle 5 are filled between lower aluminum sheet 12 and coil 7, lower aluminum sheet 12 passes through feet 13 and fuel tank
9 bottoms are connected, and the case lid 1 of the upper end of fuel tank 9 is connected as a single entity by device body pull bar 3 and device body；The top of case lid 1 of the fuel tank 9 is set
There is oil conservater 14.The fuel tank 9 is connected with gilled radiator 18 by pipe joint.Wiring terminal box 19 is also hung with fuel tank 9 to use
To collect and the various secondary lines of transfer.
The coil 7 is simplex winding inner screen continuous winding, and coil head end is in top outlet, head end tap lead wire 2 and head
End sleeve pipe 15 is connected；Coil end is divided into third gear in bottom outlet, and end tap lead wire 6 connects with three end sleeve pipes 17 respectively
Connect；Head end sleeve pipe 15 is by raising seat 16 on fuel tank 9.
Described inner wall of oil tank is provided with aluminum barrel 11, and aluminum barrel 11 is electrically connected and the aluminium by fixed plate 20 and fuel tank tank wall
Cylinder 11 and upper aluminium sheet 10, the formation shielding harness of lower aluminum sheet 12.Described device body pull bar 3 is electrically connected with feet 13, feet 13
Between insulate, one of device body pull bar 3 is electrically connected with upper aluminium sheet 10, lower aluminum sheet 12, case lid 1, and case lid 1 is realized through fuel tank 9
Single-point grounding.
Described feet 13 includes the first feet 13a and the second feet 13b, and described device body pull bar 3 includes first
Device body pull bar 3a, the second device body pull bar 3b, the 3rd device body pull bar 3c and the 4th device body pull bar 3d；Four device body pull bars 3 are logical
Thin nut 26, high nut 27, packing ring 28 is crossed to be connected with case lid 1, upper aluminium sheet 10, feet 13.Wherein, the first device body pull bar 3a and
Second device body pull bar 3b and the first feet 13a is electrically connected, the 3rd device body pull bar 3c and the 4th device body pull bar 3d and the second feet
13b is electrically connected；Between the device body pull bar 3a of case lid 1 and first, the 3rd device body pull bar 3c be provided with the first insulating part 21, case lid 1 with
Second device body pull bar 3b, the 4th device body pull bar 3d are electrically connected；The upper device body pull bar 3a of aluminium sheet 10 and first, the 3rd device body pull bar
The second insulating part 22, the upper device body pull bar 3b of aluminium sheet 10 and second electrical connections are provided between 3c, the 4th device body pull bar 3d；Lower aluminum sheet
It is equipped between 12 and four device body pull bars 3 between the 3rd insulating part 23, the feet 13 of lower aluminum sheet 12 and two and is provided with the 4th insulating part
24, lower aluminum sheet 12 realizes reliable electrical connection through the feet 13a of connecting line 29 and first；It is provided between two feets 13 and fuel tank 9
5th insulating part 25.
Claims (5)
1. a kind of oil-immersed hollow self-cooled neutral grounding reactor, it is characterised in that：Device including fuel tank and in fuel tank
Body；Described device body includes coil and is located at the upper aluminium sheet and lower aluminum sheet of coil upper and lower side respectively, between upper aluminium sheet and coil
Pressing plate and end circle are filled, supporting plate and end circle are filled between lower aluminum sheet and coil, whole device body is connected by feet with tank bottoms,
The case lid of fuel tank upper end is connected as a single entity by device body pull bar with device body；Described inner wall of oil tank is provided with aluminum barrel, and aluminum barrel passes through fixation
Plate is electrically connected with fuel tank tank wall；Described device body pull bar is electrically connected with corresponding feet, is insulated between feet, wherein extremely
A few device body pull bar is realized with upper aluminium sheet, lower aluminum sheet and is electrically connected；Each feet has a device body pull bar and case lid electric
Connection, case lid realizes single-point grounding through fuel tank；Described feet includes the first feet and the second feet of mutually insulated, described
Device body pull bar includes the first device body pull bar, the second device body pull bar, the 3rd device body pull bar and the 4th device body pull bar；Wherein,
One device body pull bar and the second device body pull bar and the first feet are electrically connected, the 3rd device body pull bar and the 4th device body pull bar and the second pad
Pin is electrically connected；The first insulating part is provided between case lid and the first device body pull bar, the 3rd device body pull bar, case lid and the second device body are drawn
Bar, the electrical connection of the 4th device body pull bar；Set between upper aluminium sheet and the first device body pull bar, the 3rd device body pull bar, the 4th device body pull bar
There is the second insulating part, upper aluminium sheet and the second device body pull bar are electrically connected；The 3rd is equipped between lower aluminum sheet and four device body pull bars
Insulating part；The 4th insulating part is provided between lower aluminum sheet and two feets, lower aluminum sheet is reliably electric with the first feet by connecting line
Connection；The 5th insulating part is provided between two feets and fuel tank.
2. oil-immersed hollow self-cooled neutral grounding reactor according to claim 1, it is characterised in that：The aluminum barrel with
Upper aluminium sheet, lower aluminum sheet formation shielding harness.
3. oil-immersed hollow self-cooled neutral grounding reactor according to claim 1, it is characterised in that：The coil is
Simplex winding inner screen continuous winding, winding protruding head passes through lead and sleeve pipe connection.
4. oil-immersed hollow self-cooled neutral grounding reactor according to claim 1, it is characterised in that：The fuel tank
Case lid top is provided with oil conservater.
5. oil-immersed hollow self-cooled neutral grounding reactor according to claim 1, it is characterised in that：The fuel tank leads to
Cross pipe joint and be connected with gilled radiator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510351042.4A CN105006335B (en) | 2015-06-23 | 2015-06-23 | A kind of oil-immersed hollow self-cooled neutral grounding reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510351042.4A CN105006335B (en) | 2015-06-23 | 2015-06-23 | A kind of oil-immersed hollow self-cooled neutral grounding reactor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105006335A CN105006335A (en) | 2015-10-28 |
| CN105006335B true CN105006335B (en) | 2017-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510351042.4A Active CN105006335B (en) | 2015-06-23 | 2015-06-23 | A kind of oil-immersed hollow self-cooled neutral grounding reactor |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110890201B (en) * | 2018-09-10 | 2022-07-22 | 特变电工沈阳变压器集团有限公司 | Three-phase shunt reactor lead wire connection structure |
| CN116913667B (en) * | 2023-08-14 | 2024-07-05 | 中国民用航空飞行学院 | Inverted oilpaper insulation large-sized transformer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201681700U (en) * | 2010-01-15 | 2010-12-22 | 中国西电电气股份有限公司 | Iron core grounding structure of parallel reactor |
| CN201838428U (en) * | 2010-08-24 | 2011-05-18 | 江苏盛华电气有限公司 | Oil tank of intermediate-frequency reactor |
| CN201859744U (en) * | 2010-10-27 | 2011-06-08 | 特变电工沈阳变压器集团有限公司 | Return yoke pull rod clamping structure for oil-immersed electric reactor |
| CN103258617A (en) * | 2013-05-20 | 2013-08-21 | 南通星源仪器设备制造有限公司 | Oil-immersed filter reactor easy to maintain |
| CN205028741U (en) * | 2015-06-23 | 2016-02-10 | 山东电力设备有限公司 | Oily hollow self -cooled neutral earthing reactor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61141111A (en) * | 1984-12-13 | 1986-06-28 | Kansai Electric Power Co Inc:The | Reactor device for neutral grounding |
-
2015
- 2015-06-23 CN CN201510351042.4A patent/CN105006335B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201681700U (en) * | 2010-01-15 | 2010-12-22 | 中国西电电气股份有限公司 | Iron core grounding structure of parallel reactor |
| CN201838428U (en) * | 2010-08-24 | 2011-05-18 | 江苏盛华电气有限公司 | Oil tank of intermediate-frequency reactor |
| CN201859744U (en) * | 2010-10-27 | 2011-06-08 | 特变电工沈阳变压器集团有限公司 | Return yoke pull rod clamping structure for oil-immersed electric reactor |
| CN103258617A (en) * | 2013-05-20 | 2013-08-21 | 南通星源仪器设备制造有限公司 | Oil-immersed filter reactor easy to maintain |
| CN205028741U (en) * | 2015-06-23 | 2016-02-10 | 山东电力设备有限公司 | Oily hollow self -cooled neutral earthing reactor |
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| CN105006335A (en) | 2015-10-28 |
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