CN209168919U - A kind of monomial capacitance switch for capacitance-adjustable transformer - Google Patents
A kind of monomial capacitance switch for capacitance-adjustable transformer Download PDFInfo
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- CN209168919U CN209168919U CN201821635258.9U CN201821635258U CN209168919U CN 209168919 U CN209168919 U CN 209168919U CN 201821635258 U CN201821635258 U CN 201821635258U CN 209168919 U CN209168919 U CN 209168919U
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Abstract
The utility model belongs to electroporation field, discloses a kind of monomial capacitance switch for capacitance-adjustable transformer, and the operation panel composition coil handover operation mechanism of setting is slided by the sliding slot of fixed setting and in sliding slot；The vertical chute corresponding with vacuum interrupter is set on chute wall, U-shaped moving part sets guide-track groove corresponding with vacuum interrupter, and the both ends of the exchanging shaft of the divide-shut brake tie rod end of vacuum interrupter are assemblied in a pair of of the vertical chute corresponding in u-bracket after passing through a pair of guide rails slot corresponding on U-shaped moving part；The guide-track groove includes low level section and high-order section two parts, is respectively used to driving vacuum interrupter separating brake and combined floodgate.The utility model realizes the complex processes such as the timing movement for acting the synchronization for completing high-low pressure switching, high pressure and low pressure switching with a simplest unidirectional drive by the design of u-bracket and U-shaped moving part and the combination settings of guide-track groove.
Description
Technical field
The utility model belongs to electroporation field, is related to power industry capacitance-adjustable transformer equipment more particularly to a kind of use
In the capacitance switch on capacitance-adjustable transformer.
Background technique
Loaded capacity-regulated transformer is a kind of transformer with two kinds of rated capacities of size.According to payload, using special
The connection type of capacitance switch switching transformer winding under the case where not cutting off the power of door then realizes transformer two
Switching between kind different capabilities.
The capacitance switch of the prior art has the following problems: the high pressure and low-voltage contact of capacitance switch are using grease chamber knot altogether
Structure.In capacity transfer conversion process, high-voltage contact and low-voltage contact generate electric arc, this causes contact impaired, and electrical endurance only has 3
To 50,000 times.It was calculated by transformer life 20 years, can only switch 4 to 6 times daily, can not meet actual demand；Electric arc makes oil
It easily deteriorates, every operation 2000 times (about years) will have a power failure maintenance of changing oil, this causes capacitance-adjustable transformer to push away
By arrive very big resistance.
It is opened to solve the above problems, Chinese patent CN204390926U proposes a kind of capacity transfer with vacuum interrupter
It closes.Although this capacitance switch solves the problems, such as to generate electric arc, but its number of parts is more, and structure is complicated, and failure rate is higher.
Utility model content
The purpose of this utility model is that switching above shortcomings for above-mentioned existing capacitance-adjustable transformer, one is proposed
The novel capacitance switch coil handover operation mechanism of kind, the operating mechanism can be acted with a simplest unidirectional drive and be completed
Complicated divide-shut brake is dynamic under each vacuum interrupter specific time sequence in high-low pressure synchronism switching and high pressure and low pressure handoff procedure
Make process.
A kind of in order to achieve the above purposes, the technical solution adopted by the utility model is: monomial for capacitance-adjustable transformer
Capacitance switch, three three-phases for one group of corresponding capacitance-adjustable transformer are used in a capacitance-adjustable transformer, including first group of vacuum is gone out
Arc chamber and second group of vacuum interrupter are located at capacitance switch two sides for controlling the first side of each vacuum interrupter divide-shut brake
Switching system, second side switching system, the electromagnetic drive for driving the first side switching system and second side switching system to act
Mechanism.
First side switching system includes vacuum interrupter and a set of for driving the first side of vacuum interrupter divide-shut brake to grasp
Make mechanism；Second side switching system includes four vacuum interrupters and a set of for driving four vacuum interrupter divide-shut brakes
Second side handover operation mechanism；
First handover operation mechanism and second side handover operation mechanism respectively include a fixed setting u-bracket and
The U-shaped moving part of sliding setting in u-bracket；It is symmetrically arranged with the U-shaped moving part of at least a pair of of support in u-bracket two side walls and please permit
Perhaps the lateral strip grooves of its linear reciprocation sliding, are symmetrically arranged with and the transverse direction in u-bracket in the two side walls of the U-shaped moving part
Strip grooves corresponding perforation is equipped with support shaft in perforation, and support shaft both ends pass through lateral strip grooves, and support shaft both ends are equipped with
Idler wheel, the idler wheel at support shaft both ends, which is arranged in the lateral strip grooves in u-bracket, to be moved horizontally.
First lateral incision is changed in the two side walls of the respective u-bracket of operating mechanism and second side handover operation mechanism and is symmetrically set
It is respectively used to the divide-shut brake pull rod of located lateral vacuum interrupter and the vertical chute for allowing it to move up and down vertically (is vertically
Refer to the direction of motion of straight empty arc-chutes moving conductive rod).
First lateral incision is changed in the two side walls of the respective U-shaped moving part of operating mechanism and second side handover operation mechanism and is symmetrically set
The guide-track groove for thering is the divide-shut brake pull rod for being respectively used to drive the vacuum interrupter to move up and down vertically,
The connection of insulating respectively of the moving conductive rod of each straight empty arc-chutes (connects) divide-shut brake pull rod, the division by insulator
Lock tie rod end is equipped with exchanging shaft, and the both ends of the exchanging shaft of the divide-shut brake tie rod end of each vacuum interrupter pass through U-shaped dynamic
It is assemblied in a pair of of the vertical chute corresponding in u-bracket after corresponding a pair of guide rails slot on part.Exchanging shaft both ends
It is equipped with and is separately positioned in guide-track groove and the idler wheel in the vertical chute.
The guide-track groove includes low level section and high-order section two parts, and low level section is high-order for driving vacuum interrupter separating brake
For driving vacuum interrupter to close a floodgate, high-order section and low level section are connected section by intermediate tilting section transition；Three sections of each guide-track groove
Overall length is equal to guarantee the identical period of motion.
Further, using Dy(Yy) transformation capacity transfer when, the vacuum interrupter in the first side switching system is respectively
The high pressure transition vacuum that high pressure the first corner connection vacuum interrupter Kg1, high pressure star meet vacuum interrupter Kgg, are in series with transition resistance
Arc-chutes Kgc, the first side of first rail groove corresponding with vacuum interrupter Kgc are high-order section, and second side is low level section, with vacuum
Corresponding the first side of second guide-track groove arc-chutes Kg1 is low level section, and second side is high-order section；It is corresponding with vacuum interrupter Kgg
Third guide-track groove high position section is located at the first side, and low level section is located at second side；The high-order section of first rail groove and third guide-track groove
Low level section is isometric, and third guide-track groove high position segment length is equal to the low level section of first rail groove, the low level Duan Yugao of the second guide-track groove
Position Duan Xiangtong；
Four vacuum interrupters in second side switching system be respectively the first parallel connection vacuum arc extinguishing chamber of low pressure Kd1,
The second parallel connection vacuum arc extinguishing chamber of low pressure Kd2, series connection vacuum interrupter Kdg and the vacuum interrupter Kdc for being in series with transition resistance, with
The 4th the first side of guide-track groove that vacuum interrupter corresponds to Kd1 is low level section, and second side is high-order section；With Kdh pairs of vacuum interrupter
The 5th the first side of guide-track groove answered is high-order section, and second side is low level section；Be in series with Kdc pairs of vacuum interrupter of transition resistance
The 6th the first side of guide-track groove answered is high-order section, and second side is low level section；The 7th guide-track groove corresponding with vacuum interrupter Kd2
Side is low level section, and second side is high-order section；The high-order section and low level section of 4th guide-track groove and the 7th guide-track groove are isometric, and the 5th leads
The high-order section of track slot and the low level section of the 6th guide-track groove are isometric and be longer than the high-order section of the 4th guide-track groove and the 7th guide-track groove and low
Position section, the high-order section of six guide-track groove of low level Duan Yu of the 5th guide-track groove is isometric and shorter than the 4th guide-track groove and the 7th guide-track groove
High-order section and low level section.
Electromagnetic drive mechanism converts transverse movement for vertical motion by bent-arm driving member.First side switching system and
The U-shaped moving part transverse direction forward slip of second side handover operation mechanism completes the connection of high-voltage winding coil and low pressure winding coil
Conversion.
Conversely, electromagnetic drive mechanism converts transverse movement for vertical motion by bent-arm driving member, the first lateral incision is changed
The U-shaped moving part of system and second side handover operation mechanism laterally slides backward, and completes high-voltage winding coil and low pressure winding coil
Connection conversion.
Use Dy(Dy) transformation capacity transfer when, four vacuum interrupters in the first side switching system are respectively high pressure the
One parallel connection vacuum arc extinguishing chamber Kg1, high-pressure series vacuum interrupter Kgg and the high pressure transition vacuum extinction for being in series with transition resistance
Room Kgc and the second parallel connection vacuum arc extinguishing chamber of high pressure Kg2, the first side of first rail groove corresponding with vacuum interrupter Kgc are height
Position section, second side are low level section, and the first side of the second guide-track groove corresponding with the first corner connection vacuum interrupter Kg1 is low level section, the
Two sides are high-order section；The corresponding third guide-track groove high position section of vacuum interrupter Kgg is connect with star and is located at the first side, and low level section is located at the
Two sides；The high-order section of first rail groove and the low level section of third guide-track groove are isometric, and third guide-track groove high position segment length is equal to first
The low level section of guide-track groove, the low level section of the second guide-track groove is identical as high-order section, the 8th guide-track groove corresponding with vacuum interrupter Kg2
First side is low level section, and second side is high-order section and high-order section is identical as low level segment length；
Four vacuum interrupters in second side switching system be respectively the first parallel connection vacuum arc extinguishing chamber of low pressure Kd1,
The second parallel connection vacuum arc extinguishing chamber of low pressure Kd2, low voltage series vacuum interrupter Kdg and the series connection vacuum extinction for being in series with transition resistance
Room Kdc, is low level section with first the first side of corresponding 4th guide-track groove vacuum interrupter Kd1, and second side is high-order section；With it is true
Empty the first side of corresponding 5th guide-track groove arc-chutes Kdg is high-order section, and second side is low level section；Be in series with the true of transition resistance
Empty the first side of corresponding 6th guide-track groove arc-chutes Kdc is high-order section, and second side is low level section；It is corresponding with vacuum interrupter Kd2
The 7th the first side of guide-track groove be low level section, second side is high-order section；The high-order section of 4th guide-track groove and the 7th guide-track groove and low
Position section is isometric, and the high-order section of the 5th guide-track groove and the low level section of the 6th guide-track groove are isometric and be longer than the 4th guide-track groove and the 7th guide rail
The high-order section and low level section of slot, the high-order section of six guide-track groove of low level Duan Yu of the 5th guide-track groove is isometric and shorter than the 4th guide-track groove
With the high-order section and low level section of the 7th guide-track groove.
Electromagnetic drive mechanism converts transverse movement for vertical motion by bent-arm driving member.First side switching system and
The U-shaped moving part transverse direction forward slip of second side handover operation mechanism completes the connection of high-voltage winding coil and low pressure winding coil
Conversion.
Conversely, electromagnetic drive mechanism converts transverse movement for vertical motion by bent-arm driving member, the first lateral incision is changed
The U-shaped moving part of system and second side handover operation mechanism laterally slides backward, and completes high-voltage winding coil and low pressure winding coil
Connection conversion.
Use Dy(Yz) transformation capacity transfer when, four vacuum interrupters in the first side switching system are respectively high pressure the
One corner connection vacuum interrupter Kg1, star meet vacuum interrupter Kgg and the high pressure transition vacuum interrupter Kgc for being in series with transition resistance
And low pressure third parallel connection vacuum arc extinguishing chamber Kd3, the first side of first rail groove corresponding with high pressure transition vacuum interrupter Kgc are
High-order section, second side are low level section, and the first side of the second guide-track groove corresponding with vacuum interrupter Kg1 is low level section, and second side is
High-order section；Third guide-track groove high position section corresponding with vacuum interrupter Kgg is located at the first side, and low level section is located at second side；First
The high-order section of guide-track groove and the low level section of third guide-track groove are isometric, and third guide-track groove high position segment length is equal to the low of first rail groove
Position section, the low level section of the second guide-track groove is identical as high-order section, the 8th guide rail corresponding with third low pressure parallel connection vacuum arc extinguishing chamber Kd3
The first side of slot is low level section, and second side is high-order section and high-order section is identical as low level segment length；
Four vacuum interrupters in second side switching system be respectively the first parallel connection vacuum arc extinguishing chamber of low pressure Kd1,
The second parallel connection vacuum arc extinguishing chamber of low pressure Kd2, series connection vacuum interrupter Kdg and the vacuum interrupter Kdc for being in series with transition resistance, with
The first side of corresponding 4th guide-track groove vacuum interrupter Kd1 is low level section, and second side is high-order section；With Kdg pairs of vacuum interrupter
The 5th the first side of guide-track groove answered is high-order section, and second side is low level section；Be in series with Kdc pairs of vacuum interrupter of transition resistance
The 6th the first side of guide-track groove answered is high-order section, and second side is low level section；The 7th guide-track groove corresponding with vacuum interrupter Kd2
Side is low level section, and second side is high-order section；The high-order section and low level section of 4th guide-track groove and the 7th guide-track groove are isometric, and the 5th leads
The high-order section of track slot and the low level section of the 6th guide-track groove are isometric and be longer than the high-order section of the 4th guide-track groove and the 7th guide-track groove and low
Position section, the high-order section of six guide-track groove of low level Duan Yu of the 5th guide-track groove is isometric and shorter than the 4th guide-track groove and the 7th guide-track groove
High-order section and low level section.
Electromagnetic drive mechanism converts transverse movement for vertical motion by bent-arm driving member.First side switching system and
The U-shaped moving part transverse direction forward slip of second side handover operation mechanism completes the connection of high-voltage winding coil and low pressure winding coil
Conversion.
Conversely, electromagnetic drive mechanism converts transverse movement for vertical motion by bent-arm driving member, the first lateral incision is changed
The U-shaped moving part of system and second side handover operation mechanism laterally slides backward, and completes high-voltage winding coil and low pressure winding coil
Connection conversion.
The utility model beneficial effect is: passing through the design of u-bracket and U-shaped moving part and the combination of multiple guide-track grooves
Setting is realized to be acted with a simplest unidirectional drive and completes high-low pressure synchronism switching and high pressure and low pressure handoff procedure
In each vacuum interrupter specific time sequence under complicated divide-shut brake action process.
Detailed description of the invention:
Fig. 1 is circuit diagram of the capacitance-adjustable transformer using small-capacity low-pressure side winding when Dy(Yy) transformation capacity transfer；
Fig. 2 is circuit diagram of the capacitance-adjustable transformer using large capacity low-pressure side winding when Dy(Yy) transformation capacity transfer；
Fig. 3 is circuit diagram of the capacitance-adjustable transformer using low capacity high-pressure side winding when Dy(Yy) transformation capacity transfer；
Fig. 4 is circuit diagram of the capacitance-adjustable transformer using large capacity high-pressure side winding when Dy(Yy) transformation capacity transfer；
Fig. 5 is the master of the u-bracket of second side handover operation mechanism when converting capacity transfer using Dy(Yy) in the utility model
View；
Fig. 6 is the master of the U-shaped moving part of second side handover operation mechanism when converting capacity transfer using Dy(Yy) in the utility model
View；
Fig. 7 is the U-shaped moving part and U of second side handover operation mechanism when converting capacity transfer using Dy(Yy) in the utility model
Type support schematic diagram；
Fig. 8 is the schematic diagram of second side handover operation mechanism when converting capacity transfer using Dy(Yy) in the utility model；
Fig. 9 is when converting capacity transfer using Dy(Yy) in the utility model, and the master of the u-bracket of operating mechanism is changed in the first lateral incision
View；
Figure 10 is when converting capacity transfer using Dy(Yy) in the utility model, and the U-shaped moving part of operating mechanism is changed in the first lateral incision
Main view；
Figure 11 is when converting capacity transfer using Dy(Yy) in the utility model, and the U-shaped moving part and U of operating mechanism are changed in the first lateral incision
Type support schematic diagram；
Figure 12 is when converting capacity transfer using Dy(Yy) in the utility model, and the schematic diagram of operating mechanism is changed in the first lateral incision；
Figure 13 is installation axle and swing arm structure schematic diagram；
Figure 14 is the A-O-A direction view of Fig. 9.
In figure: where K indicates that vacuum interrupter, symbol " day " indicate that vacuum interrupter is in "on" position, symbol " mesh "
Indicate that vacuum interrupter is in gate-dividing state；R represents transition resistance；T indicates the time.
Specific embodiment
Below in conjunction with attached drawing, to the structure and principle of capacitance switch described in the utility model by taking one embodiment as an example
It become apparent from, completely described.
The capacitance switch of this example, when converting capacity transfer using Dy (Yy), including the first side switching system and second side switching system
System, the electromagnetic drive mechanism 8 for driving the first side switching system and second side switching system to act.
First side switching system includes three vacuum interrupters and for driving three vacuum interrupter divide-shut brakes
Operating mechanism is changed in a set of first lateral incision.It includes a single u-shaped bracket 12 and a single u-shaped moving part 16 that operating mechanism is changed in first lateral incision.Such as
Shown in Fig. 9, the u-bracket 12 that operating mechanism is changed in the first lateral incision is equipped with three pairs of the vertical chutes 10 and two pairs of lateral strip grooves 11.
As shown in Figure 10, the U-shaped moving part 16 that operating mechanism is changed in the first lateral incision has thereon in the u-bracket 12 of three pairs of guide-track grooves 14 and Fig. 9
Three pairs of the vertical chutes 10 match, be additionally provided on U-shaped moving part 16 two pairs perforation 15, two pairs perforation 15 respectively with the U-shaped branch of Fig. 9
Two pairs of lateral strip grooves 11 on frame 12 match, and are equipped with support shaft in perforation 15, support shaft both ends are assemblied in u-bracket 12
On lateral strip grooves 11 in.Support shaft both ends are equipped with idler wheel, and idler wheel is matched with lateral strip grooves 11.
Second side switching system includes four vacuum interrupters and for driving four vacuum interrupter divide-shut brakes
A set of second side handover operation mechanism.Second side handover operation mechanism includes a single u-shaped bracket 3 and a single u-shaped moving part 7.Such as Fig. 5
Shown, the u-bracket 3 of second side handover operation mechanism is equipped with four pairs of the vertical chutes 1 and two pairs of lateral strip grooves 2.Such as Fig. 6 institute
Show, the U-shaped moving part 7 of second side handover operation mechanism there are four pairs in the u-bracket 3 of four pairs of guide-track grooves 5 and Fig. 5 vertically to slide thereon
Slot 1 matches, and U-shaped moving part 7 is equipped with two pairs of perforation 6,6 points of two pairs of perforation and two pairs in the u-bracket with Fig. 5 transverse direction strips
Slot 2 matches, and is equipped with support shaft in perforation 6, support shaft both ends are assemblied in the lateral strip grooves 2 in u-bracket.Support shaft
Both ends are equipped with idler wheel, and idler wheel is matched with lateral strip grooves 2.
Electromagnetic drive mechanism is synchronous to drive the first lateral coil handover operation mechanism and second side handover operation mechanism.Tool
Body, electromagnetic drive mechanism changes the U-shaped moving part 16 and second side of operating mechanism by bent-arm driving member with the first lateral incision respectively
The U-shaped moving part 7 of handover operation mechanism connects.3, Figure 14 referring to Fig.1, institute's bent-arm driving member include swing arm installation axle 19, first
Swing arm 18, the second swing arm 9, third swing arm 17.The u-bracket 12 and second side handover operation mechanism of operating mechanism are changed in first lateral incision
U-bracket 3 inner sidewall on be respectively equipped with swing arm installation shaft mounting hole, two swing arms installation shaft mounting holes are laterally right
Just, swing arm installation axle 19 is rotatably mounted in two swing arm installation shaft mounting holes.First swing arm 18 is mounted on swing arm installation
Among axis 19, the swinging end of the first swing arm 18 and the drive rod of electromagnetic drive mechanism are hinged；Second swing arm 9, third swing arm 17 divide
Be not mounted on the both ends of swing arm installation axle 19, the swinging end of the second swing arm 9, third swing arm 17 swinging end respectively with the second lateral incision
The U-shaped moving part 16 that the U-shaped moving part 7 and the first lateral incision for changing operating mechanism change operating mechanism is hinged.
Specific driving method is electromagnetic mechanism by the first swing arm, and the rotation that vertical motion is converted to swing arm installation axle is transported
Dynamic, swing arm installation axle converts the U-shaped dynamic of second side handover operation mechanism for rotary motion by the second swing arm and third swing arm
The synchronous linear movement of the U-shaped moving part of operating mechanism is changed in part and the first lateral incision.
Its high-order section of guide-track groove on U-shaped moving part and the short different structure of low level segment length, so that each vacuum interrupter can be with
Realize desired timing movement, the every movement of electromagnetic mechanism is primary, and each vacuum interrupter carries out separating brake and the conjunction of corresponding time sequence respectively
Lock movement.
Specifically, the first side switching system of every phase includes three vacuum interrupters, second side of every phase by taking a phase as an example
Switching system includes four vacuum interrupters, and the vacuum interrupter is the internal vacuum tube for having dynamic and static contact, can
By property height, it can guarantee and effectively carry out arc extinguishing；The electromagnetic mechanism drives each vacuum extinction by the handover operation mechanism 7
Room carries out separating brake and closes a floodgate, and then the connection type of switching coil.
Firstly, illustrating second side switching system, by taking a phase as an example, second side switching system of every phase includes that four vacuum are gone out
Arc chamber, as shown in figure 8, being from left to right respectively the first low pressure parallel connection vacuum arc extinguishing chamber (Kd1), the low pressure for being in series with transition resistance
Series connection vacuum interrupter (Kdc), low voltage series vacuum interrupter (Kdg) and the second low pressure parallel connection vacuum arc extinguishing chamber (Kd2).
When the low-voltage coil is in series connection, low voltage series vacuum interrupter and the low pressure string for being in series with transition resistance
Join vacuum interrupter to close a floodgate, the first low pressure parallel connection vacuum arc extinguishing chamber and the second low pressure parallel connection vacuum arc extinguishing chamber separating brake, driving mechanism
Transverse direction is converted by the direction of motion by connecting lever, makes U-shaped moving part and u-bracket that relative motion occur, low voltage series vacuum is made to go out
Arc chamber and the low voltage series vacuum interrupter separating brake for being in series with transition resistance, the first low pressure parallel connection vacuum arc extinguishing chamber and the second low pressure
Parallel connection vacuum arc extinguishing chamber closes a floodgate, during the low-voltage coil is converted to parallel-connection structure by cascaded structure, permanent magnet mechanism driving
Second side handover operation mechanism positive action, and second side handover operation mechanism guarantees that each vacuum interrupter is dynamic by following timing
Make:
Low voltage series vacuum interrupter separating brake；
First low pressure parallel connection vacuum arc extinguishing chamber and the second low pressure parallel connection vacuum arc extinguishing chamber close a floodgate；
It is in series with the low voltage series vacuum interrupter separating brake of transition resistance, completes conversion.
During the low-voltage coil is converted to cascaded structure by parallel-connection structure, permanent magnet mechanism drives second side switching behaviour
Make mechanism counteragent, and second side handover operation mechanism guarantees that each vacuum interrupter is acted by following timing:
The low voltage series vacuum interrupter for being in series with transition resistance closes a floodgate；
First low pressure parallel connection vacuum arc extinguishing chamber and the second low pressure parallel connection vacuum arc extinguishing chamber separating brake；
Low voltage series vacuum interrupter closes a floodgate, and completes conversion.
Specifically, as shown in Figure 1, 2, Fig. 1 is that (Kdc, Kdg's coil cascaded structure close a floodgate；Kd1, Kd2 separating brake), i.e. transformation
Device is in low capacity state；Fig. 2 is that (Kd1, Kd2's coils from parallel connection of coils structure close a floodgate；Kdc, Kdg separating brake), i.e., transformer is in great Rong
Amount state；Wherein Kd1, Kd2 are low pressure parallel connection vacuum arc extinguishing chamber, and Kdg is low voltage series vacuum interrupter, and Kdc is low pressure mistake
Vacuum interrupter is crossed, transition resistance is in series with.
Coil from series connection into parallel-connection structure conversion process, electromagnetic mechanism drives second side handover operation mechanism forward direction dynamic
Make, and the special construction of second side handover operation mechanism guarantees that each vacuum interrupter is acted by following timing:
Vacuum interrupter Kdg separating brake → vacuum interrupter Kd1, vacuum interrupter Kd2 combined floodgate → vacuum interrupter Kdc point
Lock completes conversion, and II section of coil of low pressure and III section of coil are cascaded structure at this time；
Conversely, when needing II section of coil of low pressure and III section of coil to be converted to cascaded structure by parallel-connection structure, electromagnetic mechanism
Second side handover operation mechanism counteragent is driven, the special construction of transmission mechanism guarantees that each vacuum interrupter presses following timing
Movement: vacuum interrupter Kdc combined floodgate → vacuum interrupter Kd1, vacuum interrupter Kd2 separating brake → vacuum interrupter Kdg close a floodgate, complete
At conversion.
Realize the first side switching system of three high-tension coil star angles conversion；By taking three-phase as an example, the first lateral incision of every phase is changed
System includes three vacuum interrupters, is from left to right respectively the high pressure transition vacuum for being in series with transition resistance as shown in figure 12
Arc-chutes (Kgc), the first corner connection vacuum interrupter (Kg1), star meet vacuum interrupter (Kgg)；The first corner connection vacuum extinction
Room is closed a floodgate, star makes when connecing vacuum interrupter Kgg separating brake high-tension coil have a generally triangular shape connection, star connect vacuum interrupter combined floodgate,
First corner connection vacuum interrupter makes high-tension coil that Astrocytic conditioned medium be presented in separating brake.
When the high-tension coil is in star binding structure, the first corner connection vacuum interrupter separating brake, star connects vacuum interrupter and height
It presses through and crosses vacuum interrupter combined floodgate；
The high-tension coil is switched through by star be changed to corner connection during, electromagnetic mechanism drives the first handover operation mechanism positive
Movement, and the first handover operation mechanism guarantees that each vacuum interrupter is acted by following timing:
Star connects vacuum interrupter separating brake；
First corner connection vacuum interrupter closes a floodgate；
It is in series with the high pressure transition vacuum interrupter separating brake of transition resistance, completes conversion.
The high-tension coil is converted to during star connects by corner connection, and electromagnetic mechanism drives the first handover operation mechanism reversed
Movement, and the first handover operation mechanism guarantees that each vacuum interrupter is acted by following timing:
The high pressure transition vacuum interrupter for being in series with transition resistance closes a floodgate；
First corner connection vacuum interrupter separating brake；
Star connects vacuum interrupter combined floodgate, completes conversion.
Specifically, as shown in Figure 3, Figure 4, Fig. 3 is that star connects structural schematic diagram (Kgg, Kgc combined floodgate；Kg1 separating brake), i.e. transformation
Device is in low capacity state；Fig. 4 is that (Kg1's angle connecting structure schematic diagram closes a floodgate；Kgg, Kgc separating brake), i.e., transformer is in large capacity
State；Wherein Kgg is that star connects vacuum interrupter, and Kg1 is the first corner connection vacuum interrupter, and Kgc is high pressure transition vacuum interrupter,
It is in series with transition resistance.
It is connect from star into corner connection conversion process in high-tension coil, electromagnetic mechanism drives the first handover operation mechanism forward direction dynamic
Make, and the special construction of the first handover operation mechanism guarantees that each vacuum interrupter is acted by following timing:
Vacuum interrupter Kgg separating brake → vacuum interrupter Kg1 combined floodgate → vacuum interrupter Kgc separating brake completes conversion, at this time
For corner connection.
Conversely, electromagnetic mechanism drives the first handover operation mechanism anti-when needing high-tension coil to be converted to star by corner connection to connect
To movement, the special construction of the first handover operation mechanism guarantees that each vacuum interrupter is acted by following timing: vacuum interrupter
Kgc combined floodgate → vacuum interrupter Kg1 separating brake → vacuum interrupter Kgg closes a floodgate, and completes conversion.
The separating brake and making process of each vacuum interrupter in high-pressure side are as shown in fig. 7, when electromagnetic mechanism acts primary, each vacuum
Arc-chutes just have closing the switch for timing primary.The actuation time of each vacuum interrupter is divided into T1, T2, T3, T4.Transformer is in
Low capacity state, high-pressure side is around star-like connection is grouped into, at this point, vacuum interrupter Kgg, vacuum interrupter Kgc are in closed form
State, vacuum interrupter Kg1 are in an off state；As T1, vacuum interrupter Kgg is disconnected, and vacuum interrupter Kg1, which is in, disconnects shape
State, vacuum interrupter Kgc are in closed state；As T3, vacuum interrupter Kg1 closure, vacuum interrupter Kgg, which is in, disconnects shape
State, vacuum interrupter Kgc are in closed state；When T4, vacuum interrupter Kgc is disconnected, and vacuum interrupter Kgg, which is in, disconnects shape
State, vacuum interrupter Kg1 is in closed state, at this point, Three-Phase Transformer high-voltage winding is connected at triangle, that is, completes from star
It is connected to the conversion of corner connection, and the movement of the timing of each vacuum interrupter connects the length of high-order section and low level section by transmission mechanism
Difference realize that the short then timing movement of segment length is preceding, and the long then timing movement of segment length is rear.
While high-pressure side completes star angle and converts, low-pressure side also carries out being connected in series to conversion in parallel, specifically, such as
It Fig. 1, is the circuit diagram of a low-pressure side wherein phase shown in 2, schematic diagram when Fig. 1 is low capacity, when Fig. 2 is large capacity
Schematic diagram.The opening and closing process of each vacuum interrupter in figure mesolow side as shown in fig. 7, when permanent magnet mechanism movement is primary, go out by each vacuum
Arc chamber just has closing the switch for timing primary.Transformer is in the original state under low capacity, vacuum interrupter Kdc, and vacuum is gone out
Arc chamber Kdg is in closed state, and vacuum interrupter Kd1, vacuum interrupter Kd2 are in an off state, and three sections of low-pressure side winding
Coil series connection；As T1, vacuum interrupter Kdg is disconnected, and vacuum interrupter Kdc be in closed state, vacuum interrupter Kd1, very
Empty arc-chutes Kd2 is in an off state；As T2, vacuum interrupter Kd1, vacuum interrupter Kd2 closure, vacuum interrupter Kdg
It is in an off state, vacuum interrupter Kdc is in closed state；As T4, vacuum interrupter Kdc is disconnected, vacuum interrupter
Kd1, vacuum interrupter Kd2 are in closed state, and vacuum interrupter Kdg is in an off state, at this point, two sections of low-pressure side winding
It connects, that is, completes from the conversion for being connected in series to parallel connection with another section of coil after coils from parallel connection of coils.
When using Dy (Yz) transformation capacity transfer, the first side switching system is described including four vacuum interrupters and for driving
A set of first handover operation mechanism of four vacuum interrupter divide-shut brakes.Second switching system includes four vacuum interrupters and use
In a set of second side handover operation mechanism for driving four vacuum interrupter divide-shut brakes.
By taking three-phase as an example, the first side switching system of every phase includes four vacuum interrupters, is respectively in series with transition electricity
High pressure transition vacuum interrupter (Kgc), vacuum interrupter (Kg1), vacuum interrupter (Kgg) and the vacuum interrupter (Kd3) of resistance.
High-tension coil from low capacity into large capacity conversion process, electromagnetic mechanism drives the first handover operation mechanism positive
Movement, and the special construction of the first handover operation mechanism guarantees that each vacuum interrupter is acted by following timing: vacuum interrupter
Kgg separating brake → vacuum interrupter Kg1 combined floodgate → vacuum interrupter Kgc separating brake completes conversion.
Conversely, electromagnetic mechanism drives the first handover operation mechanism counteragent, the special construction of the first handover operation mechanism
Guarantee that each vacuum interrupter is acted by following timing: vacuum interrupter Kgc combined floodgate → vacuum interrupter Kg1 separating brake → vacuum is gone out
Arc chamber Kgg closes a floodgate, and completes conversion.
Second switching system of every phase includes vacuum interrupter (Kd1), the vacuum interrupter for being in series with transition resistance
(Kdc), vacuum interrupter (Kdg and vacuum interrupter (Kd2).
When coil becomes large capacity from low capacity, electromagnetic mechanism drives second side handover operation mechanism positive action, and
The special construction of second side handover operation mechanism guarantees that each vacuum interrupter is acted by following timing:
Vacuum interrupter Kdg separating brake → vacuum interrupter Kd1, vacuum interrupter Kd2 and vacuum interrupter Kd3 combined floodgate → true
Empty arc-chutes Kdc separating brake completes conversion；
Conversely, electromagnetic mechanism drives second side handover operation mechanism counteragent, the special construction of transmission mechanism guarantees each
A vacuum interrupter is acted by following timing: vacuum interrupter Kdc combined floodgate → vacuum interrupter Kd1, vacuum interrupter Kd2 and true
Empty arc-chutes Kd3 separating brake → vacuum interrupter Kdg closes a floodgate, and completes conversion.
When using Dy (Dy) transformation capacity transfer, the first side switching system is described including four vacuum interrupters and for driving
A set of first handover operation mechanism of four vacuum interrupter divide-shut brakes.Second switching system includes four vacuum interrupters and use
In a set of second side handover operation mechanism for driving four vacuum interrupter divide-shut brakes.
By taking three-phase as an example, the first side switching system of every phase includes four vacuum interrupters, is respectively in series with transition electricity
High pressure transition vacuum interrupter (Kgc), vacuum interrupter (Kg1), vacuum interrupter (Kgg) and the vacuum interrupter (Kg2) of resistance.
High-tension coil from low capacity into large capacity conversion process, electromagnetic mechanism drives the first handover operation mechanism positive
Movement, and the special construction of the first handover operation mechanism guarantees that each vacuum interrupter is acted by following timing: vacuum interrupter
Kgg separating brake → vacuum interrupter Kg1, vacuum interrupter Kg2 combined floodgate → vacuum interrupter Kgc separating brake complete conversion.
Conversely, electromagnetic mechanism drives the first handover operation mechanism counteragent, the special construction of the first handover operation mechanism
Guarantee that each vacuum interrupter is acted by following timing: vacuum interrupter Kgc combined floodgate → vacuum interrupter Kg1, vacuum interrupter
Kg2 separating brake → vacuum interrupter Kgg closes a floodgate, and completes conversion.
Second switching system of every phase includes vacuum interrupter (Kd1), the vacuum interrupter for being in series with transition resistance
(Kdc), vacuum interrupter (Kdg and vacuum interrupter (Kd2).
Coil from low capacity into large capacity conversion process, electromagnetic mechanism drives second side handover operation mechanism forward direction dynamic
Make, and the special construction of second side handover operation mechanism guarantees that each vacuum interrupter is acted by following timing:
Vacuum interrupter Kdg separating brake → vacuum interrupter Kd1, vacuum interrupter Kd2 combined floodgate → vacuum interrupter Kdc point
Lock completes conversion；
Otherwise electromagnetic mechanism drives second side handover operation mechanism counteragent, and the special construction of transmission mechanism guarantees each
Vacuum interrupter is acted by following timing: vacuum interrupter Kdc combined floodgate → vacuum interrupter Kd1, vacuum interrupter Kd2 separating brake →
Vacuum interrupter Kdg closes a floodgate, and completes conversion.
The utility model has been independently arranged vacuum interrupter by contacting each contact in high-low pressure contact system,
Arc extinction performance is good, and the service life is long, non-maintaining, and reliability increases, and realizes and completes capacity transfer in case of constant power；Using electromagnetic motor
Structure is as the driving force of each vacuum interrupter mechanical action, and compared to motor spring system, the utility model structure is simple,
Run more stable, more reliable, the switching motion deadline is short, hence it is evident that the phenomenon that eliminating high failure rate.
Obviously, described embodiment is only a part of the embodiment of the utility model, instead of all the embodiments.
Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts
The range of the utility model protection all should belong in every other embodiment.
Claims (10)
1. a kind of monomial capacitance switch for capacitance-adjustable transformer, three are used in a capacitance-adjustable transformer for one group, including
For first group of vacuum interrupter of high-voltage winding coil connection conversion, second group for the connection conversion of low pressure winding coil is true
Empty arc-chutes, be located at first lateral incision of the capacitance switch two sides for controlling each vacuum interrupter divide-shut brake change operating mechanism,
Second side handover operation mechanism and the electromagnetic drive mechanism of driving operating mechanism movement；
It is characterized in that, operating mechanism is changed in the first lateral incision and second side handover operation mechanism respectively includes the U-shaped of a fixed setting
Bracket and the U-shaped moving part that setting is slided in u-bracket；
At least a pair of transverse direction for supporting U-shaped moving part and its linear reciprocation please be allow to slide is symmetrically arranged in u-bracket two side walls
Strip grooves are symmetrically arranged with perforation corresponding with the lateral strip grooves in u-bracket in the two side walls of the U-shaped moving part, perforate
It is inside equipped with support shaft, support shaft both ends pass through lateral strip grooves；
First lateral incision, which is changed in the two side walls of the respective u-bracket of operating mechanism and second side handover operation mechanism, to be symmetrically arranged with point
Not Yong Yu located lateral vacuum interrupter divide-shut brake pull rod and the vertical chute that allows it to move up and down vertically, the first lateral incision change
It is symmetrically arranged in the two side walls of the respective U-shaped moving part of operating mechanism and second side handover operation mechanism and is respectively used to driving vacuum
The guide-track groove that the divide-shut brake pull rod of arc-chutes moves up and down vertically；
The moving conductive rod of each straight empty arc-chutes insulate connecting dividing lock pull rod respectively, and the divide-shut brake tie rod end is equipped with transformation
Axis, the both ends of the exchanging shaft of the divide-shut brake tie rod end of each vacuum interrupter pass through a pair corresponding on U-shaped moving part and lead
It is assemblied in after track slot in a pair of of the vertical chute corresponding in u-bracket；
The guide-track groove includes low level section and high-order section two parts, and low level section for driving vacuum interrupter separating brake, use by high-order section
It closes a floodgate in driving vacuum interrupter, high-order section and low level section are connected by intermediate tilting section transition.
2. the monomial capacitance switch according to claim 1 for capacitance-adjustable transformer, which is characterized in that each guide-track groove three
Duan overall length is equal.
3. the monomial capacitance switch according to claim 1 for capacitance-adjustable transformer, which is characterized in that the exchanging shaft
Both ends, which are equipped with, to be separately positioned in guide-track groove and the idler wheel in the vertical chute.
4. the monomial capacitance switch according to claim 1 for capacitance-adjustable transformer, which is characterized in that the support shaft
Both ends are equipped with idler wheel, and the idler wheel at support shaft both ends, which is arranged in the lateral strip grooves in u-bracket, to be moved horizontally.
5. the monomial capacitance switch according to claim 1 for capacitance-adjustable transformer, which is characterized in that the capacity transfer is opened
The capacitance-adjustable transformer for Dy(Yy) transformation is closed, the vacuum interrupter in the first side switching system is respectively that the first corner connection is true
The high pressure transition vacuum interrupter Kgc that empty arc-chutes Kg1, star meet vacuum interrupter Kgg, are in series with transition resistance, goes out with vacuum
Corresponding the first side of first rail groove arc chamber Kgc is high-order section, and second side is low level section, corresponding with vacuum interrupter Kg1 the
Two the first sides of guide-track groove are low level section, and second side is high-order section；Third guide-track groove high position section corresponding with vacuum interrupter Kgg
In the first side, low level section is located at second side；The high-order section of first rail groove and the low level section of third guide-track groove are isometric, third guide rail
Slot high position segment length is equal to the low level section of first rail groove, and the low level section of the second guide-track groove is identical as high-order section；
Four vacuum interrupters in second side switching system are respectively the first parallel connection vacuum arc extinguishing chamber of low pressure Kd1, low pressure
Second parallel connection vacuum arc extinguishing chamber Kd2, low voltage series vacuum interrupter Kdg and the low pressure transition vacuum extinction for being in series with transition resistance
The 4th the first side of guide-track groove of room Kdc, Kd1 corresponding with vacuum interrupter are low level section, and second side is high-order section；With vacuum extinction
The first side of corresponding 5th guide-track groove room Kdh is high-order section, and second side is low level section；With the vacuum extinction for being in series with transition resistance
The first side of corresponding 6th guide-track groove room Kdc is high-order section, and second side is low level section；Corresponding with vacuum interrupter Kd2 the 7th
The first side of guide-track groove is low level section, and second side is high-order section；The high-order section and low level section etc. of 4th guide-track groove and the 7th guide-track groove
Long, the high-order section of the 5th guide-track groove and the low level section of the 6th guide-track groove are isometric and be longer than the height of the 4th guide-track groove and the 7th guide-track groove
Position section and low level section, the high-order section of six guide-track groove of low level Duan Yu of the 5th guide-track groove is isometric and shorter than the 4th guide-track groove and the 7th
The high-order section and low level section of guide-track groove.
6. the monomial capacitance switch according to claim 1 for capacitance-adjustable transformer, which is characterized in that the capacity transfer is opened
Close and be used for Dy(Dy) capacitance-adjustable transformer of transformation, four vacuum interrupters in the first side switching system are respectively high pressure the
One parallel connection vacuum arc extinguishing chamber Kg1, high-pressure series vacuum interrupter Kgg and the high pressure transition vacuum extinction for being in series with transition resistance
Room Kgc and high pressure the second parallel connection vacuum arc extinguishing chamber Kg2, and is in series with Kgc pairs of vacuum interrupter of high pressure transition of transition resistance
The first side of first rail groove answered is high-order section, and second side is low level section, with the first corner connection vacuum interrupter Kg1 corresponding second
The first side of guide-track groove is low level section, and second side is high-order section；Third guide-track groove high position section corresponding with vacuum interrupter Kgg is located at
First side, low level section are located at second side；The high-order section of first rail groove and the low level section of third guide-track groove are isometric, third guide-track groove
High-order segment length is equal to the low level section of first rail groove, and the low level section of the second guide-track groove is identical as high-order section；With vacuum interrupter
The first side of corresponding 8th guide-track groove Kg2 is low level section, and second side is high-order section and high-order section is identical as low level segment length；
Four vacuum interrupters in second side switching system are respectively the first parallel connection vacuum arc extinguishing chamber of low pressure Kd1, low pressure
Second parallel connection vacuum arc extinguishing chamber Kd2, low voltage series vacuum interrupter Kdg and the series connection vacuum interrupter for being in series with transition resistance
Kdc, the 4th the first side of guide-track groove corresponding with vacuum interrupter Kd1 are low level section, and second side is high-order section；With vacuum interrupter
The first side of corresponding 5th guide-track groove Kdg is high-order section, and second side is low level section；With the vacuum interrupter for being in series with transition resistance
The first side of corresponding 6th guide-track groove Kdc is high-order section, and second side is low level section；Corresponding with vacuum interrupter Kd2 the 7th leads
The first side of track slot is low level section, and second side is high-order section；The high-order section and low level section of 4th guide-track groove and the 7th guide-track groove are isometric,
The high-order section of 5th guide-track groove and the low level section of the 6th guide-track groove are isometric and be longer than a high position for the 4th guide-track groove and the 7th guide-track groove
Section and low level section, the high-order section of six guide-track groove of low level Duan Yu of the 5th guide-track groove is isometric and shorter than the 4th guide-track groove and the 7th is led
The high-order section and low level section of track slot.
7. the monomial capacitance switch according to claim 1 for capacitance-adjustable transformer, which is characterized in that the capacity transfer is opened
The capacitance-adjustable transformer for Dy(Yz) transformation is closed, four vacuum interrupters in the first side switching system are respectively that corner connection is true
Empty arc-chutes Kg1, star meet vacuum interrupter Kgg and the high pressure transition vacuum interrupter Kgc and low pressure that are in series with transition resistance
Third parallel connection vacuum arc extinguishing chamber Kd3, the first side of first rail groove corresponding with high pressure transition vacuum interrupter Kgc are high-order section,
Second side is low level section, and the first side of the second guide-track groove corresponding with vacuum interrupter Kg1 is low level section, and second side is high-order section；
Third guide-track groove high position section corresponding with vacuum interrupter Kgg is located at the first side, and low level section is located at second side；First rail groove
High-order section and the low level section of third guide-track groove are isometric, and third guide-track groove high position segment length is equal to the low level section of first rail groove, the
The low level section of two guide-track grooves is identical as high-order section, the 8th guide-track groove first corresponding with low pressure third parallel connection vacuum arc extinguishing chamber Kd3
Side is low level section, and second side is high-order section and high-order section is identical as low level segment length；
Four vacuum interrupters in second side switching system are respectively the first parallel connection vacuum arc extinguishing chamber of low pressure Kd1, low pressure
Parallel connection vacuum arc extinguishing chamber Kd2, low voltage series vacuum interrupter Kdg and the vacuum interrupter Kdc for being in series with transition resistance, with vacuum
The first side of corresponding 4th guide-track groove arc-chutes Kd1 is low level section, and second side is high-order section；It is corresponding with vacuum interrupter Kdg
5th the first side of guide-track groove is high-order section, and second side is low level section；It is corresponding with the vacuum interrupter Kdc of transition resistance is in series with
6th the first side of guide-track groove is high-order section, and second side is low level section；The 7th the first side of guide-track groove corresponding with vacuum interrupter Kd2
For low level section, second side is high-order section；The high-order section and low level section of 4th guide-track groove and the 7th guide-track groove are isometric, the 5th guide-track groove
High-order section and the 6th guide-track groove low level section it is isometric and be longer than the high-order section and low level section of the 4th guide-track groove and the 7th guide-track groove,
The high-order section of six guide-track groove of low level Duan Yu of 5th guide-track groove is isometric and a high position for shorter than the 4th guide-track groove and the 7th guide-track groove
Section and low level section.
8. the monomial capacitance switch according to claim 1 for capacitance-adjustable transformer, which is characterized in that electromagnetic drive machine
Structure changes the operation panel of operating mechanism and the operation of second side handover operation mechanism by bent-arm driving member with the first lateral incision respectively
Plate connection.
9. the monomial capacitance switch according to claim 8 for capacitance-adjustable transformer, which is characterized in that the bent-arm
Driving member includes swing arm installation axle, the first swing arm, the second swing arm, third swing arm；First swing arm is mounted among swing arm installation axle,
The swinging end of first swing arm and the drive rod of electromagnetic drive mechanism are hinged；Second swing arm, third swing arm are separately mounted to swing arm peace
Fill the both ends of axis, the swinging end of the second swing arm, third swing arm the swinging end operation panel with second side handover operation mechanism respectively
The operation panel for changing operating mechanism with the first lateral incision is hinged.
10. the monomial capacitance switch according to claim 9 for capacitance-adjustable transformer, which is characterized in that the first switching
A swing arm installation axle installation is respectively equipped on the inner sidewall of the sliding slot of the sliding slot and second side handover operation mechanism of operating mechanism
Shaft mounting hole horizontal alignment is installed in hole, two swing arms, and swing arm installation axle is rotatably mounted to two swing arm installation shaft mounting holes
It is interior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821635258.9U CN209168919U (en) | 2018-10-09 | 2018-10-09 | A kind of monomial capacitance switch for capacitance-adjustable transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821635258.9U CN209168919U (en) | 2018-10-09 | 2018-10-09 | A kind of monomial capacitance switch for capacitance-adjustable transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209168919U true CN209168919U (en) | 2019-07-26 |
Family
ID=67333186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821635258.9U Withdrawn - After Issue CN209168919U (en) | 2018-10-09 | 2018-10-09 | A kind of monomial capacitance switch for capacitance-adjustable transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209168919U (en) |
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2018
- 2018-10-09 CN CN201821635258.9U patent/CN209168919U/en not_active Withdrawn - After Issue
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