CN203205259U - Oil-immersed double-layered contact vacuum load pressure regulating tap switch for intelligent power distribution network - Google Patents
Oil-immersed double-layered contact vacuum load pressure regulating tap switch for intelligent power distribution network Download PDFInfo
- Publication number
- CN203205259U CN203205259U CN 201320201816 CN201320201816U CN203205259U CN 203205259 U CN203205259 U CN 203205259U CN 201320201816 CN201320201816 CN 201320201816 CN 201320201816 U CN201320201816 U CN 201320201816U CN 203205259 U CN203205259 U CN 203205259U
- Authority
- CN
- China
- Prior art keywords
- contact
- upper strata
- lower floor
- vacuum tube
- conductive rod
- 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
Images
Landscapes
- Housings And Mounting Of Transformers (AREA)
Abstract
An oil-immersed double-layered contact vacuum load pressure regulating tap switch for an intelligent power distribution network is provided. A motor and a transmission mechanism, and a quick mechanism are arranged inside a housing; an insulating cylinder is arranged under the housing, wherein each phase of the insulating cylinder is provided with an upper fixed contact, a lower fixed contact and a leading out terminal, and the upper fixed contact and the lower fixed contact are not in the same vertical axis; an insulation rotating shaft support is arranged on a switching core body inside the insulating cylinder; each phase of the insulation rotating shaft support is provided with an upper selection moving contact, a lower selection moving contact, an upper connecting device, a lower connecting device, an upper vacuum tube, a lower vacuum tube, a transition resistor and a conducting ring; the upper selection moving contact and the lower selection moving contact are arranged along the same vertical axis; the upper and lower vacuum tubes include a movable conducting rod and a static conducting rod. The load pressure regulating tap switch of the utility model is characterized by being simple in structure, long in contact service life, and high in reliability, and being free of the maintenance.
Description
Technical field
The utility model relates to a kind of on-load tap changer, the oil immersed type Double layer contact head vacuum on-load tap changer that especially a kind of intelligent distribution network is used.
Background technology
The on load tap changer that domestic early stage power transformer is joined carries out load transfer by copper tungsten arc contact in oil.Owing on load tap changer switches frequently, the arc contact scaling loss is corresponding more serious, the carbonization of oil and pollution speed.Regular maintenance and periodic inspection workload have been increased thus.Safeguard and maintenance workload in order to reduce on load tap changer, satisfy the needs of electric power system modernization development, shunting switch manufacturing enterprise one after the other releases the on load tap changer of big-and-middle capacity vacuum blow-out both at home and abroad.At present, the on load tap changer of employing vacuum blow-out not only puts it in the big-and-middle capacity power transformer of oil immersed type and uses, and also obtains widely to use in the small-capacity dry-type distribution transformer.But on the oil immersion-type distribution transformer of low capacity, owing to failing to break through the difficult point of manufacturing technology, have no alternative and still adopt copper tungsten arc contact on load tap changer as the adjusting of voltage.In order to reduce the pollution of oil, the distribution transformer voltage-regulation tap changer just begins to adopt on-line oil filter.Adopt on-line oil filter, though solve oily pollution problem, increase maintenance and the maintenance workload of equipment investment and on-line oil filter, still can't realize freedom from repairs.
Therefore, be necessary for the shortcoming in the existing oil immersion-type distribution transformer on-load tap changer, break through the difficult point of manufacturing technology, a kind of simple in structure, non-maintaining, on-load tap changer that intelligent vacuum that reliability is higher switches of innovation formula utility model and research and development is filled up " blank " of the on-load tap changer that oil immersed type vacuum that intelligent distribution network uses switches.
The utility model content
Consider at least one the problems referred to above and finished the utility model, and a purpose of the present utility model oil immersed type Double layer contact head vacuum on-load tap changer that has been to provide a kind of intelligent distribution network to use, it is characterized in that comprising:
Be arranged on motor and transmission mechanism and quick mechanism in the housing;
Be arranged on the insulating cylinder of housing below, whenever in this insulating cylinder be equipped with mutually that contact is decided on the upper strata and lower floor decides contact and exit, contact is decided on this upper strata and lower floor decides the position of contact not on same vertical axis;
Be arranged on an insulation rotary shaft rack is arranged on the switching core body of insulating cylinder inside, every upper strata that is provided with mutually selects moving contact, lower floor to select moving contact, upper strata jockey, lower floor's jockey, upper strata vacuum tube, lower floor's vacuum tube, transition resistance and conducting ring on this support, and this upper strata selects moving contact and lower floor to select moving contact to be positioned on the same vertical axis; The upper and lower vacuum tube includes moving conductive rod and static conductive rod, upper strata selection moving contact is connected by the upper strata jockey and on the moving conductive rod of upper strata vacuum tube is electric, the static conductive rod of upper strata vacuum tube be connected on conducting ring is electric, lower floor select moving contact by lower floor's jockey be connected on the moving conductive rod of lower floor vacuum tube is electric, the static conductive rod of lower floor's vacuum tube be connected on an end of transition resistance is electric, the other end of transition resistance be connected on conducting ring is electric; Remain the good contact state on electric between conducting ring and the exit; Transition resistance adopts skeleton resistive element, on the fixed insulation rotary shaft rack.
According to the utility model on the other hand, be positioned at every phase upper strata and decide that contact and lower floor are idiostatic to be decided contact and carry out electric the connection at insulating cylinder external application brace.
According to the utility model on the other hand, contact is decided and lower floor decides contact for can make described selection moving contact move radially the contact of deciding of certain distance in the upper strata.
According to the utility model on the other hand, described moving conductive rod is for contacting and the moving conductive rod that separates with static conductive rod.
According to the utility model on the other hand, can be arranged to single-phase or heterogeneous.
Because distribution transformer capacity is little, the on-load tap changer rated through-current is corresponding less, long-term current-carrying directly holds smooth by main vacuum tube (upper strata vacuum tube), bypass main contact current-carrying is not set, thus on-load tap changer of the present utility model have simple in structure, the contact life-span is high, freedom from repairs and the high characteristics of reliability.
Description of drawings
Fig. 1 is the profile schematic diagram of the oil immersed type Double layer contact head vacuum on-load tap changer used according to the intelligent distribution network of the utility model preferred embodiment.
Fig. 2 is the oil immersed type Double layer contact head vacuum on-load tap changer structural representation of using according to the intelligent distribution network of the utility model preferred embodiment.
Fig. 3 is the schematic cross-section of A-A direction among Fig. 2.
Fig. 4 is the schematic diagram after the selection moving contact of Fig. 3 rotates a position.
Fig. 5 is the operating state conversion schematic diagram of the oil immersed type Double layer contact head vacuum on-load tap changer used of the intelligent distribution network of the utility model preferred embodiment.
Wherein:
1, the cylinder end; 2, insulating cylinder; 3, lower floor's jockey; 4, lower floor decides contact; 5, moving contact is selected by lower floor; 6, contact is decided on the upper strata; 7, moving contact is selected on the upper strata; 8, upper strata jockey; 9, quick mechanism; 10, motor and transmission mechanism; 11, housing; 12, insulation rotating shaft; 13, support; 14, upper strata vacuum tube; 15, transition resistance; 16, lower floor's vacuum tube; 17, brace; 18, conducting ring; 19, exit; Contact is decided on K, upper strata; Moving contact is selected on k, upper strata; R, Transformer Winding; ZK, vacuum tube; K1, lower floor decide contact; Moving contact is selected by k1, lower floor; R1, transition resistance; L, decide the contact brace.
Embodiment
Below in conjunction with accompanying drawing; by preferred embodiment preferred forms of the present utility model is described; the embodiment here is to explain the utility model; and should not be construed as restriction of the present utility model; in the situation that do not break away from spirit of the present utility model and essential scope; can make various changes and modifications, these all should be included within the protection range of the present utility model.
Referring to Fig. 1-4, wherein show the oil immersed type Double layer contact head vacuum on-load tap changer that the intelligent distribution network of the utility model preferred embodiment is used, it comprises: be arranged on motor and transmission mechanism 10 and quick mechanism 9 in the housing 11;
Be arranged on the insulating cylinder 2 of housing 11 belows, this insulating cylinder 2 is interior whenever to be equipped with mutually that contact 6 is decided on the upper strata and lower floor decides contact 4 and exit 19, and contact 6 is decided on this upper strata and lower floor decides the position of contact 4 not on same vertical axis; Be understandable that, the upper strata is here decided the position that contact 6 and lower floor decide contact 4 and is staggered at same vertical axis, so that when deciding contact 6 on the upper strata and selecting moving contact 7 contact with the upper strata (arriving gear), lower floor decides contact 4 and does not select moving contact 5 to contact with lower floor, namely two groups are moved, decide simultaneously contact of contact, but the contact of staggering;
Be arranged on the insulation rotary shaft rack 13 on the switching core body of insulating cylinder 2 inside, every upper strata that is provided with mutually selects moving contact 7, lower floor to select moving contact 5, upper strata jockey 8, lower floor's jockey 3, upper strata vacuum tube 14, lower floor's vacuum tube 16, transition resistance 15, conducting ring 18 on this support 13; This upper strata selects moving contact 7 and lower floor to select moving contact 5 to be positioned on the same vertical axis; Upper strata vacuum tube 14 and lower floor's vacuum tube 16 include moving conductive rod and static conductive rod; The upper strata selects moving contact 7 to be connected by upper strata jockey 8 and on the moving conductive rod of upper strata vacuum tube 14 is electric, is connected on the static conductive rod of upper strata vacuum tube 14 and conducting ring 18 are electric; Lower floor select moving contact 5 by lower floor's jockey 3 be connected on the moving conductive rod of lower floor vacuum tube 16 is electric, the static conductive rod of lower floor's vacuum tube 16 be connected on an end of transition resistance 15 is electric, be connected on the other end of transition resistance 15 and conducting ring 18 are electric; Remain the good contact state on electric between conducting ring 18 and the exit 19.
Preferably, transition resistance adopts skeleton resistive element, on the fixed insulation rotary shaft rack on the relevant position.
Preferably, describedly decide contact and mechanically have cam effect, described selection moving contact mechanically has the roller follower effect, is rolling friction between roller and the cam in oil, weares and teares less, can transmit larger power.
Preferably, described vacuum tube is horizontal layout, when the rotation of described selection moving contact by the insulation rotating shaft and described when deciding contact, be equivalent to roller follower and make traveling priority at the profile of cam, be that described selection moving contact moves a certain distance diametrically, move with the moving conductive rod that drives corresponding vacuum tube, and contact with corresponding static conductive rod, make the load current reliable closed conducting in described vacuum tube by switch; When the rotation of described selection moving contact by the insulation rotating shaft with described when deciding contact and separating, described selection moving contact oppositely moves a certain distance diametrically, the moving conductive rod of the corresponding vacuum tube of drive moves and separates with corresponding static conductive rod under action of reset spring, make load current by switch in described vacuum tube or moving decide between contact in reliable blow-out, thereby finish year switching that has of switch.
Preferably, described oil immersed type Double layer contact head vacuum on-load tap changer adopts combined type selector switch structure, described selection moving contact electric be again conversion after contact in vacuum tube disconnects blow-out, thereby to select moving contact be not to cut-off under load; Select moving contact under no-load, change with select adjacent decide contact after, the contact in the vacuum tube is closed this branch road again immediately, neither be closed under load because selecting moving contact, so the selection moving contact is Arc-free ablation; Select moving contact to disconnect at once after its branch road vacuum tube blow-out by this, at this moment vacuum tube no longer bears voltage.Therefore, just can not occur such as the short circuit risk of restriking behind the vacuum tube between phenomenon and the consequent tap, realize thus the self-insurance of height.
Preferably, described selection moving contact is the backup protection as vacuum tube, if (leakages) fault appears in the contact in the vacuum tube, can not breaking arc, and the selection moving contact that be connected in series with it this moment certainly leads to electric arc when changing.Therefore in the ability of selecting to have on the moving contact structure drop-out current and extinguish arcs, even vacuum tube lost efficacy also not entail dangers to shunting switch safe operation.
Referring to Fig. 5, be understandable that, the course of work of vacuum on-load tap changer of the present utility model is as follows:
Fig. 5-a: select moving contact 7 when the upper strata and be positioned at when the upper strata of gear 1 is decided contact 6 and contacted, load current is decided contact 6, upper strata by the upper strata and is selected moving contact 7, upper strata jockey 8, upper strata vacuum tube 14, conducting ring 18 to flow out through exit 19, and lower floor selects moving contact 5 decide empty position (i.e. this moment lower floor's selection moving contact 5 do not decide contact 4 with the lower floor contact) no current of contact 4 because of lower floor.
Fig. 5-b: when the upper strata selects moving contact to gear 2 rotations one angle, upper strata selection this moment moving contact 7 does not also leave the upper strata and decides contact 6, and lower floor selects moving contact 5 to decide contact 4 with lower floor to contact, although lower floor decides contact 4, lower floor selects moving contact 5, lower floor's vacuum tube 16, transition resistance 15 and conducting ring 18 to form a path this moment, but because of the line resistance of transition resistance 15 much larger than the upper strata path, load current still or toward the upper strata is decided contact 6, the upper strata selects moving contact 7, upper strata jockey 8, upper strata vacuum tube 14, conducting ring 18 to flow out through exit 19;
Fig. 5-c: select moving contact 7 when the upper strata and continue rotation one angle, upper strata vacuum tube 14 disconnects this branch road, at this moment, produces vacuum fracture voltage, i.e. a U
Section=I
Negative* R, after 14 blow-outs of upper strata vacuum tube, electric current is decided contact 4, lower floor by lower floor and is selected path that moving contact 5, lower floor's jockey 3, lower floor's vacuum tube 16, transition resistance 15, conducting ring 18 form via exit 19 outflows;
Fig. 5-d: continue rotation, when contact 6 is decided on the upper strata that the upper strata selects moving contact 7 to touch gear 2, the load current of gear 2 is decided contact 6 through the upper strata of gear 2, the upper strata selects the path of moving contact 7, upper strata jockey 8, upper strata vacuum tube 14, conducting ring 18 compositions to flow out through exit 19, simultaneously, decide contact 4, lower floor's selection moving contact 5, lower floor's jockey 3, lower floor's vacuum tube 16, transition resistance 15, conducting ring 18 formation one path with the lower floor of gear 1, produce circulating current, i.e. I=U
The utmost point/ R;
Fig. 5-e: continue rotation, the lower floor of gear 1 selects moving contact 5 disengaging lower floors to decide contact 4, lower floor selects moving contact 5 to disconnect no current, contact 6 is decided on the upper strata of gear 2, the upper strata selects moving contact 7, upper strata jockey 8, upper strata vacuum tube 14, conducting ring 18 to form a path through exit 19, at this moment, load current switches to gear 2 by gear 1, has finished a tap handoff procedure of shunting switch.
Preferably, the every phase upper strata that is positioned at same gear decides that contact 6 and the lower floor of same gear are idiostatic to be decided contact 4 and carry out electric the connection at insulating cylinder 2 external application braces 17.
Preferably, contact 6 is decided and lower floor decides contact 4 for can make described selection moving contact move radially the contact of deciding of certain distance in the upper strata.Be understandable that, upper and lower layer selection moving contact 7 and 5 is decided contact 6 by the upper strata and is decided contacting of contact 4 with lower floor, contacts with static conductive rod with the moving conductive rod that drives vacuum tube, forms path.
Preferably, described moving conductive rod is for contacting and the moving conductive rod that separates with static conductive rod.
Preferably, the upper strata that is arranged on the described support 13 selects moving contact 7, lower floor to select moving contact 5, upper strata jockey 8, lower floor's jockey 3, upper strata vacuum tube 14, lower floor's vacuum tube 16, transition resistance 15, conducting ring 18 to be a phase, and can be arranged to according to demand single-phase or heterogeneous.Be understandable that, corresponding to support 13, the upper strata of being equipped with in this insulating cylinder 2 decides that contact 6, lower floor are decided contact 4, exit 19 is a phase, equally also can be arranged to single-phase or heterogeneous.
Compared with prior art, the oil immersed type Double layer contact head vacuum on-load tap changer used of intelligent distribution network of the present utility model has following one or more advantage: simple in structure; The contact life-span is high; Non-maintaining; Reliability is higher.
In sum, the oil immersed type Double layer contact head vacuum on-load tap changer used of intelligent distribution network of the present utility model is simple in structure, the contact life-span is high (with the same life-span of transformer), non-maintaining and/or reliability is higher.The utility model is not limited to above-mentioned specific embodiment. and be understandable that, in the situation that do not break away from spirit of the present utility model and essential scope, can make various changes and modifications, these all should be included within the protection range of the present utility model.
Claims (5)
1. oil immersed type Double layer contact head vacuum on-load tap changer that intelligent distribution network is used is characterized in that comprising:
Be arranged on motor and transmission mechanism and quick mechanism in the housing;
Be arranged on the insulating cylinder of housing below, whenever in this insulating cylinder be equipped with mutually that contact is decided on the upper strata and lower floor decides contact and exit, contact is decided on this upper strata and lower floor decides the position of contact not on same vertical axis;
Be arranged on an insulation rotary shaft rack is arranged on the switching core body of insulating cylinder inside, every upper strata that is provided with mutually selects moving contact, lower floor to select moving contact, upper strata jockey, lower floor's jockey, upper strata vacuum tube, lower floor's vacuum tube, transition resistance and conducting ring on this support, and this upper strata selects moving contact and lower floor to select moving contact to be positioned on the same vertical axis; The upper and lower vacuum tube includes moving conductive rod and static conductive rod, upper strata selection moving contact is connected by the upper strata jockey and on the moving conductive rod of upper strata vacuum tube is electric, the static conductive rod of upper strata vacuum tube be connected on conducting ring is electric, lower floor select moving contact by lower floor's jockey be connected on the moving conductive rod of lower floor vacuum tube is electric, the static conductive rod of lower floor's vacuum tube be connected on an end of transition resistance is electric, the other end of transition resistance be connected on conducting ring is electric; Remain the good contact state on electric between conducting ring and the exit; Transition resistance adopts skeleton resistive element, on the fixed insulation rotary shaft rack.
2. the oil immersed type Double layer contact head vacuum on-load tap changer used of intelligent distribution network according to claim 1 is characterized in that every phase upper strata decides that contact and lower floor are idiostatic to be decided contact and carry out electric the connection at insulating cylinder external application brace.
3. the oil immersed type Double layer contact head vacuum on-load tap changer used of intelligent distribution network according to claim 2 is characterized in that contact is decided on every phase upper strata and lower floor decides contact for can make described selection moving contact move radially the contact of deciding of certain distance.
4. the oil immersed type Double layer contact head vacuum on-load tap changer used of intelligent distribution network according to claim 3, it is characterized in that described moving conductive rod for can with static conductive rod contact and the moving conductive rod that separates.
5. the oil immersed type Double layer contact head vacuum on-load tap changer used of intelligent distribution network according to claim 3 is characterized in that: be arranged to single-phase or heterogeneous.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320201816 CN203205259U (en) | 2013-04-19 | 2013-04-19 | Oil-immersed double-layered contact vacuum load pressure regulating tap switch for intelligent power distribution network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320201816 CN203205259U (en) | 2013-04-19 | 2013-04-19 | Oil-immersed double-layered contact vacuum load pressure regulating tap switch for intelligent power distribution network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203205259U true CN203205259U (en) | 2013-09-18 |
Family
ID=49149342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320201816 Expired - Fee Related CN203205259U (en) | 2013-04-19 | 2013-04-19 | Oil-immersed double-layered contact vacuum load pressure regulating tap switch for intelligent power distribution network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203205259U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106710906A (en) * | 2017-01-20 | 2017-05-24 | 济南爱迪电气设备有限公司 | On-load tap changer special for distribution transformer |
| CN107221463A (en) * | 2017-06-22 | 2017-09-29 | 西安森宝电气工程有限公司 | A kind of vacuum on-load operation switch |
| CN108695083A (en) * | 2017-04-07 | 2018-10-23 | 王守国 | A kind of miniaturized intelligent type on-load voltage regulating switch |
-
2013
- 2013-04-19 CN CN 201320201816 patent/CN203205259U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106710906A (en) * | 2017-01-20 | 2017-05-24 | 济南爱迪电气设备有限公司 | On-load tap changer special for distribution transformer |
| CN108695083A (en) * | 2017-04-07 | 2018-10-23 | 王守国 | A kind of miniaturized intelligent type on-load voltage regulating switch |
| CN108695083B (en) * | 2017-04-07 | 2021-03-05 | 王守国 | Miniaturized intelligent on-load voltage regulation switch |
| CN107221463A (en) * | 2017-06-22 | 2017-09-29 | 西安森宝电气工程有限公司 | A kind of vacuum on-load operation switch |
| CN107221463B (en) * | 2017-06-22 | 2019-08-09 | 西安森宝电气工程有限公司 | A kind of vacuum on-load operation switch |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101430966B (en) | Thyristor direct switching on-load tap-changer | |
| CN102709106B (en) | Vacuum arc extinction change-over selector | |
| CN102623202B (en) | A kind of composite vacuum on-load tap-changer changeover module | |
| CN101383222A (en) | Externally hanging combined loaded tap-changer | |
| CN203205259U (en) | Oil-immersed double-layered contact vacuum load pressure regulating tap switch for intelligent power distribution network | |
| CN103187183A (en) | Oil immersion type double-layer contact vacuum on-load voltage regulation tapping switch for intelligent distribution network | |
| CN101807472A (en) | Vacuum tube group for replacing copper-tungsten contact group of on-load tap changer | |
| CN203242480U (en) | Transformer on-load capacitance and voltage regulating tap switch | |
| CN201359915Y (en) | Vacuum tube switch core of on-load tap switch | |
| CN103268814B (en) | Transformer loaded capacity regulating voltage regulating shunting switch | |
| US9513654B2 (en) | Method for performing a switching process in an on-load tap changer | |
| CN204045484U (en) | 35kV electric pressure oil immersion composite vacuum on-load tap-changer | |
| CN202258896U (en) | Vacuum tube series parallel circuit structure for vacuum on-load tapping switch | |
| CN204067009U (en) | Rolling type and clip type combine loaded capacity regulating voltage regulating shunting switch | |
| CN202585193U (en) | Vacuum arc extinction conversion selector | |
| CN105702494B (en) | A kind of transformer is without arc load ratio bridging switch | |
| CN204834371U (en) | On -load tap -changer's moving contact subassembly | |
| CN201259827Y (en) | Thyristor reactor transition loaded adapter switch without quick mechanism | |
| CN202601395U (en) | Combined type vacuum switch | |
| CN2437029Y (en) | Switching switch for dry type loaded distributing switch | |
| CN201383428Y (en) | Non-excitation tapping switch with contact isolating device | |
| CN203300411U (en) | Transformer externally hung on-load tap switch | |
| CN103971986B (en) | A kind of vacuum tube drive mechanism of load ratio bridging switch | |
| CN113838702B (en) | Switching core of on-load tap-changer and on-load tap-changer | |
| CN203434610U (en) | Safety protection device of vacuum on-load tap-changer |
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: 20130918 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |