CN103189948B - Shunting switch - Google Patents
Shunting switch Download PDFInfo
- Publication number
- CN103189948B CN103189948B CN201180053016.3A CN201180053016A CN103189948B CN 103189948 B CN103189948 B CN 103189948B CN 201180053016 A CN201180053016 A CN 201180053016A CN 103189948 B CN103189948 B CN 103189948B
- Authority
- CN
- China
- Prior art keywords
- contact
- switch
- load
- tapping
- load branch
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/0005—Tap change devices
- H01H9/0038—Tap change devices making use of vacuum switches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
- H01F29/04—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings having provision for tap-changing without interrupting the load current
Abstract
The present invention relates to a kind of shunting switch for carrying out unbroken conversion between the tapping of tapping transformer, wherein, two load branch, a load branch and the first tapping and another load branch and the electrical connection of the second tapping are set.Here, each load branch includes that at least one is used as the switch element of main contacts and is connected with common load leads.According to the present invention, first mechanical switch contact is set in the first load branch, the side away from load leads of the first switch element being used as main contacts by this transfer contact is optionally connected with the first tapping or with the second tapping, and arranging the second mechanical switch contact in the second load branch, the side away from load leads of the second switch element being used as main contacts by this transfer contact is the most optionally connected with the first tapping or with the second tapping.So follow current in steady statue is assigned on the switch element of two load branch in a beneficial manner.
Description
Technical field
The present invention relates to a kind of in carrying out not between two tappings of tapping transformer
The shunting switch of disconnected conversion.
Background technology
DE 20 21 575 discloses a kind of shunting switch, and it has total of four for each stage
Vacuum switch tube.One it is respectively arranged with as main contacts in each of two load branch
Vacuum switch tube and as another vacuum switch connected with transfer resistance of resistance contact point
Pipe.Unbroken at the tapping n+1 from current tapping n to new preliminary election bears
When idling is changed, being first turned off disconnecting the main contacts of side, then Guan Bi accepts the resistance contact point of side,
The compensation electric current limited by transfer resistance is flowed between level n and n+1 at two.Extremely
After the resistance contact point disconnecting side of this Guan Bi disconnects, accept the main contacts Guan Bi of side so that institute
Load current is had to flow to loaded line, EOC from new tapping n+1.
In this known shunting switch, the vacuum switch tube of the load branch of access is in stable fortune
Row guides follow current.
This there are two load branch, each load branch have two vacuum switch tubes point
Connect switch and have proven to be applicable the most in practice.But exist and may occur in which answering of high follow current
By situation, so that can be come into question by the conduction of a vacuum switch tube in stable operation.
It is known that similar each stage also has a circuit of four vacuum switch tubes, but wherein two
Individual vacuum switch tube be series in each load circuit and in described vacuum switch tube one with
Transfer resistance is in parallel.Two vacuum switch tubes being connected in series at this guide follow currents, this
Can come into question equally under high follow current.
It is known as various circuit in parallel the most in this case to arrange in two load branch
Machinery continues contact, and the described contact that continues guides the lasting electricity in stable operation after load transfer
Stream also thus makes vacuum switch tube remove load.Up to the present the lasting contact guiding current side exists
This disconnected before original load transfer, accepted the lasting contact of current side in original load
Close after conversion.
But this machinery continues contact improves the space requirement of shunting switch, structural complexity also
And additionally extend change over order, i.e. contact the most to be operated in a load transfer
Quantity.
This problem is not limited to the shunting switch having vacuum switch tube as switch element.This lacks
The most also there is having mechanical contact and as switch element or has the tap of semiconductor switch and open in point
The Central Shanxi Plain.
Summary of the invention
Therefore, the task of the present invention is to provide a kind of shunting switch starting put forward type, this point
Connect and switch the most bootable high follow current in the case of not having additional machinery to continue contact.
The general thought of the present invention is: follow current is assigned to all of two load branch
As on the switch element of main contacts, and not only guide in the load branch of electric current described extremely
A few switch element and do not guide in the load branch of load current described natively
At least one switch element that exist but the most inoperative is all used for drawing
Lead follow current.Thus solve the task of the present invention, and be no longer necessary to more switch unit
Part or larger sized switch element.
Accompanying drawing explanation
The present invention is described in detail below by accompanying drawing citing.Accompanying drawing is as follows:
Fig. 1 is the shunting switch according to the present invention, has the vacuum as switch element at this and opens
Guan Guan, is in and the steady statue during tapping n connection of the tap winding of tapping transformer
In；
Fig. 1 a to Fig. 8 is each step during load transfer to new tapping n+1.
Detailed description of the invention
According to the shunting switch of the present invention arranges the first load branch, in this load branch
Be provided with as main contacts vacuum switch tube MSV1 and transfer resistance R1 connected in parallel and
Vacuum switch tube TTV1 as resistance contact point.Completely analogously, the second load branch includes
Vacuum switch tube MSV2 and another transfer resistance R2 connected in parallel and vacuum switch tube
TTV2.To this this circuit corresponding to prior art.
According to the present invention, the first load branch arranges the first mechanical switch contact MTF1,
Not optional with the side that load leads L is connected by this transfer contact vacuum switch tube MSV1
Selecting property with current tap tapping n or be connected with new tapping n+1.
It addition, according to the present invention, the second load branch arranges the second mechanical switch contact
MTF2, by not being connected with load leads L of this transfer contact vacuum switch tube MSV2
Side the most optionally with current tap tapping n or with new tapping n+1
Connect.
In the case of fig. 1, according to prior art load electric current from tapping n via
Vacuum switch tube MSV1 flows to load leads.Only vacuum switch tube MSV1 guides follow current.
On the contrary, by add according to the present invention mechanical switch contact MTF1 in two load branch and
The circuit of MTF2, the follow current in load current IL, i.e. stable operation is assigned to vacuum
Switching tube MSV1 and MSV2, therefore each of the two vacuum switch tube need only guide half
Load current 1/2IL as follow current.Advantage is it is clear that vacuum switch tube is more economical
Running, space requirement reduces and continues contact without machinery.
Below by other accompanying drawing illustrate shunting switch according to the present invention from tapping n to around
The most complete change over order of group tap n+1.Ust represents at this between two tappings
Tapping voltage.The path guiding load current is represented with thick line.
Fig. 1 a: tap n stably switches on not yet, as by Fig. 1 a it is stated that.Vacuum is opened
Close pipe TTV2 and MSV2 to disconnect；Conversion is from the beginning of this step.
Fig. 2: vacuum switch tube TTV2 and MSV2 disconnects, and present mechanical contact MTF2 connects
Logical.Load current IL flows only through left load branch now.
Fig. 3: vacuum switch tube MSV1 disconnects, and load current is transformed into and includes vacuum switch tube
On the resistive branches of the series circuit of TTV1 and resistance R1.
Fig. 4: the vacuum switch tube TTV2 in the resistive branches of right side closes now, forms loop
Electric current Ic.
Fig. 5: vacuum switch tube TTV1 is now switched off, including vacuum switch tube TTV2 and electricity
The right side resistive branches of the series circuit of resistance R2 accepts load current completely.
Fig. 6: vacuum switch tube MSV2 closes and guides electric current, operates mechanical switch simultaneously
Contact MTF1.
Vacuum switch tube MSV1 and the TTV1 Guan Bi of Fig. 7: left load branch.
Fig. 8: realize new stable final state；EOC.Load current IL is from tapping
N+1 is assigned on two vacuum switch tube MSV1 and MSV2, and it is respectively by a half load electricity
Stream 1/2IL guides load leads L.
Particularly advantageously mechanical contact (MTF1, MTF2) is configured to consistent and/or group
Synthesize a unique assembly.
The present invention is not limited to use vacuum switch tube to be used as switch element.Have as switch unit
The mechanical contact of part or the shunting switch of semiconductor switch fall within scope of the invention.The present invention
Advantage be equally applicable to this kind of shunting switch.
Claims (6)
1. shunting switch, for tapping transformer two tappings (n, n+1) it
Between carry out unbroken conversion, this shunting switch includes:
-first selector the contact that can be connected with the first tapping (n)；
-second selector the contact that can be connected with the second tapping (n+1)；
-the first load branch of being connected with first selector contact；
-the second load branch of being connected with second selector contact；
Wherein,
-the first load branch includes the first switch element (MSV1) as main contacts,
-the second load branch includes the second switch element (MSV2) as main contacts, and
-the first and second load branch are connected with common load leads (L),
-in the first load branch, it is additionally provided in the first mechanical switch contact (MTF1), logical
Cross the first switch element (MSV1) described in this first mechanical switch contact not with load leads
(L) side connected optionally is connected with selector contact each described,
-in the second load branch, it is additionally provided in the second mechanical switch contact (MTF2), logical
Cross second switch element (MSV2) described in this second mechanical switch contact not with load leads
(L) side connected also can be connected similarly, optionally with selector contact each described.
Shunting switch the most according to claim 1, it is characterised in that
First mechanical switch contact (MTF1) including: be connected with first selector contact
One fixed contact；Second fixed contact；That be connected with the first switch element (MSV1) and can
The first armature contact being optionally connected with the first or second fixed contact,
Second mechanical switch contact (MTF2) including: the 3rd fixed contact；Select with second
The 4th fixed contact that device contact connects；That be connected with second switch element (MSV2) and can
The second armature contact being optionally connected with the 3rd or the 4th fixed contact,
First fixed contact is connected with the 3rd fixed contact,
Second fixed contact is connected with the 4th fixed contact.
Shunting switch the most according to claim 1 and 2, it is characterised in that described first
Mechanical switch contact (MTF1) is configured to consistent with the second mechanical switch contact (MTF2).
Shunting switch the most according to claim 1 and 2, it is characterised in that described first
Mechanical switch contact (MTF1) and the second mechanical switch contact (MTF2) are combined into a group
Part.
Shunting switch the most according to claim 1 and 2, it is characterised in that
Use vacuum switch tube as switch element (MSV1, MSV2)；Or
Use mechanical contact as switch element (MSV1, MSV2)；Or
Electrical semiconductor is used to switch as switch element (MSV1, MSV2).
Shunting switch the most according to claim 5, it is characterised in that use IGCT or
IGBT is as switch element.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010050882.9 | 2010-11-09 | ||
| DE102010050882A DE102010050882A1 (en) | 2010-11-09 | 2010-11-09 | step switch |
| PCT/EP2011/005337 WO2012062408A1 (en) | 2010-11-09 | 2011-10-22 | On-load tap changer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103189948A CN103189948A (en) | 2013-07-03 |
| CN103189948B true CN103189948B (en) | 2016-10-12 |
Family
ID=44903151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180053016.3A Expired - Fee Related CN103189948B (en) | 2010-11-09 | 2011-10-22 | Shunting switch |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2638553B1 (en) |
| CN (1) | CN103189948B (en) |
| DE (1) | DE102010050882A1 (en) |
| HK (1) | HK1186290A1 (en) |
| WO (1) | WO2012062408A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3004284B1 (en) | 2013-04-08 | 2015-04-03 | Schneider Electric Ind Sas | TRANSFORMER WITH MEANS FOR ADJUSTING THE LOAD TRANSFORMATION RATIO |
| DE102015106178A1 (en) * | 2015-04-22 | 2016-10-27 | Maschinenfabrik Reinhausen Gmbh | OLTC |
| CN111899999B (en) * | 2020-06-29 | 2021-09-03 | 南方电网科学研究院有限责任公司 | Power electronic tap changer and distribution transformer |
| US20230230780A1 (en) * | 2020-06-29 | 2023-07-20 | Electric Power Research Institute. China Southern Power Grid | Passive triggered-power electronic tap-changer device and contact device |
| CN112670066B (en) * | 2020-11-18 | 2023-03-21 | 中国电力科学研究院有限公司 | Transition circuit device and method for alternately bearing symmetrical vacuum bubbles |
| CN116721848B (en) * | 2023-06-05 | 2024-04-02 | 中国南方电网有限责任公司超高压输电公司广州局 | On-load tap changer and control method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3467800A (en) * | 1967-03-21 | 1969-09-16 | Gen Electric | Reversible cam actuating mechanism for electric switches |
| US3935407A (en) * | 1973-09-25 | 1976-01-27 | Maschinenfabrik Reinhausen Gebruder Scheubeck K.G. | Multiphase vacuum switch assembly having cam operated spring charging drive mechanism with lost motion connection |
| US4384247A (en) * | 1981-05-08 | 1983-05-17 | Trw Inc. | Under-load switching device particularly adapted for voltage regulation and balance |
| CN1965276A (en) * | 2004-09-28 | 2007-05-16 | 赖茵豪森机械制造公司 | Device for regulating electrical voltage |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2125763A1 (en) * | 1971-05-25 | 1972-12-07 | Transformatoren Union Ag | |
| DE2228445A1 (en) * | 1972-06-10 | 1973-12-20 | Transformatoren Union Ag | DRIVE FOR LOAD SWITCH |
| EP0009287A1 (en) * | 1978-09-18 | 1980-04-02 | ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE CHARLEROI (ACEC) Société Anonyme | Electrical apparatus comprising a series of voltage taps and a tap selector and/or a circuit breaker |
| JPS5792813A (en) * | 1980-12-01 | 1982-06-09 | Toshiba Corp | On-load tap changer |
| JP2008505479A (en) * | 2004-06-30 | 2008-02-21 | アーベーベー・リサーチ・リミテッド | Switching switch, method for operating such switch and use of such switch |
-
2010
- 2010-11-09 DE DE102010050882A patent/DE102010050882A1/en not_active Ceased
-
2011
- 2011-10-22 WO PCT/EP2011/005337 patent/WO2012062408A1/en active Application Filing
- 2011-10-22 CN CN201180053016.3A patent/CN103189948B/en not_active Expired - Fee Related
- 2011-10-22 EP EP11776703.8A patent/EP2638553B1/en not_active Not-in-force
-
2013
- 2013-12-06 HK HK13113635.9A patent/HK1186290A1/en not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3467800A (en) * | 1967-03-21 | 1969-09-16 | Gen Electric | Reversible cam actuating mechanism for electric switches |
| US3935407A (en) * | 1973-09-25 | 1976-01-27 | Maschinenfabrik Reinhausen Gebruder Scheubeck K.G. | Multiphase vacuum switch assembly having cam operated spring charging drive mechanism with lost motion connection |
| US4384247A (en) * | 1981-05-08 | 1983-05-17 | Trw Inc. | Under-load switching device particularly adapted for voltage regulation and balance |
| CN1965276A (en) * | 2004-09-28 | 2007-05-16 | 赖茵豪森机械制造公司 | Device for regulating electrical voltage |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012062408A1 (en) | 2012-05-18 |
| CN103189948A (en) | 2013-07-03 |
| DE102010050882A1 (en) | 2012-05-10 |
| EP2638553B1 (en) | 2015-09-30 |
| EP2638553A1 (en) | 2013-09-18 |
| HK1186290A1 (en) | 2014-03-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20161012 Termination date: 20181022 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |