CN107527765A - There are the high voltage isolator and its switching method of ice-melt short circuit and conventional func switching - Google Patents
There are the high voltage isolator and its switching method of ice-melt short circuit and conventional func switching Download PDFInfo
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- CN107527765A CN107527765A CN201710961223.8A CN201710961223A CN107527765A CN 107527765 A CN107527765 A CN 107527765A CN 201710961223 A CN201710961223 A CN 201710961223A CN 107527765 A CN107527765 A CN 107527765A
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- voltage isolator
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/023—Base and stationary contacts mounted thereon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/026—Movable parts and contacts mounted thereon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H2003/326—Driving mechanisms, i.e. for transmitting driving force to the contacts using bearings
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
There are the high voltage isolator and its switching method of ice-melt short circuit and conventional func switching.The high voltage isolator includes mounting bracket, mounting bracket is provided with short switch operating mechanism, horizontal stand is provided with the top of mounting bracket, three-phase high-voltage isolating switch body is housed above horizontal stand, rotation porcelain vase one end of three-phase high-voltage isolating switch body is provided with three-phase shortcircuit disconnecting switch body；Three-phase shortcircuit disconnecting switch body includes short-circuit moving contact and short-circuit static contact；The short-circuit moving contact of three-phase shortcircuit disconnecting switch body is connected by different rotary porcelain vase with corresponding rotary shaft bearing respectively, rotary shaft bearing located at the C phase high voltage isolator body other ends is connected by the first operation pull bar with the first vertical links, and the first vertical links is connected with short switch operating mechanism.Present invention additionally comprises the switching method for having the high voltage isolator of ice-melt short circuit and conventional func switching.Using the present invention, ice-melt short circuit and conventional func can be realized（Operation and ground connection）Promptly switch.
Description
Technical field
The invention mainly relates to high-voltage switch gear technical field, has ice-melt short circuit and conventional func to switch more particularly, to one kind
High voltage isolator and its switching method.
Background technology
At present, it is without hospital bus bar in 110kV and 220kV transformer stations in the modular design of Southern Power Grid Company.
When installing DC de-icing device additional in these transformer stations, it will run into two unavoidable problems：First, filled in DC ice melting
Put the ice-melt bus of outlet side directly can not be connected with DC ice-melting head end；In the end of DC ice-melting, also without special
The short-circuit device of ice melting current can be passed through.The operating efficiency that this just directly results in whole deicing processes is very low：It there are about
44% time loss is on the short circuit of circuit head end connection line end.Way general at present is to be built in ice-melt bus
On enclosure wall, be manually attached with prefabricated wire between ice-melt bus and circuit, i.e., circuit normal operation when, it is prefabricated
Wire takes off storage, it is necessary to when ice-melt operates, and circuit and line switching unit are stopped to after inspecting state, by manually will be prefabricated
Good wire is attached.Second, the space that DC ice melting bus is connected with DC ice-melting is restricted, if in ice-melt bus
Install connection equipment additional between DC ice-melting, just have to be extended place expropriation of land.
In existing mode of operation, aforesaid operations work by artificial to carry out this（According to live practical experience, one is completed
Secondary 110kV and the time of the short circuit of following transmission line of electricity and the short-circuit operation of releasing are generally or so 0.5-1 hours）, existing mode
Cause that ice-melt operating efficiency is low, the security risk of maintainer's field operation is high.
The content of the invention
The technical problem to be solved in the present invention is to overcome drawbacks described above existing for prior art, there is provided one kind, which can be realized, melts
Ice short circuit and conventional func（Operation and ground connection）Promptly switch, be rapidly completed transmission line of electricity end three-phase shortcircuit connection have
Ice-melt short circuit and the high voltage isolator and its switching method of conventional func switching.
The technical solution adopted for the present invention to solve the technical problems is：
There are the high voltage isolator of ice-melt short circuit and conventional func switching, including the operation of horizontal stand, mounting bracket, short switch
Mechanism, three-phase high-voltage isolating switch body and three-phase shortcircuit disconnecting switch body, short switch operating mechanism are located at mounting bracket
On, horizontal stand is at the top of mounting bracket, and three-phase high-voltage isolating switch body loaded on above horizontal stand, isolate by three-phase high-voltage
Switch main body includes A phase high voltage isolators body, B phase high voltage isolator bodies and C phase high voltage isolator bodies；Three-phase
Short circuit isolation Switch main body includes three-phase shortcircuit moving contact and three-phase shortcircuit static contact；Three-phase shortcircuit moving contact includes the short circuit of A phases
Moving contact, the short-circuit moving contact of B phases and the short-circuit moving contact of C phases；It is short-circuit quiet that three-phase shortcircuit static contact includes the short-circuit static contact of A phases, B phases
Contact and the short-circuit static contact of C phases；The short-circuit moving contact of A phases is located at the rotation porcelain vase upper end of A phase high voltage isolator bodies, and B phases are short
Road moving contact is located at the rotation porcelain vase upper end of B phase high voltage isolator bodies, and the short-circuit moving contact of C phases is opened located at C phase high_voltage isolations
Close the rotation porcelain vase upper end of body；The lower end of the rotation porcelain vase of A phase high voltage isolator bodies, B phase high voltage isolator bodies
The lower end of rotation porcelain vase and the lower end of rotation porcelain vase of C phase high voltage isolator bodies be equipped with corresponding rotary shaft bearing,
Rotary shaft bearing located at the lower end of the rotation porcelain vase of C phase high voltage isolator bodies is vertical with first by the first operation pull bar
Connecting rod is connected, and the first vertical links is connected with short switch operating mechanism.
Binding post on binding post, the short-circuit moving contact of B phases on the short-circuit moving contact of A phases with the short-circuit moving contact of C phases
Binding post by short circuit connection row be connected.
Equipped with the first linkage connecting lever, B phases in the rotary shaft bearing of the lower end of the rotation porcelain vase of A phase high voltage isolator bodies
Opened in the rotary shaft bearing of the lower end of the rotation porcelain vase of high voltage isolator body equipped with the second linkage connecting lever, C phase high_voltage isolations
Close and the 3rd linkage connecting lever is respectively arranged with the rotary shaft bearing of the lower end of the rotation porcelain vase of body, the first linkage connecting lever passes through the first water
Flat connecting rod is connected with the second linkage connecting lever, and the second linkage connecting lever is connected by the second waling stripe with the 3rd linkage connecting lever.Three-phase
Between short circuit isolation Switch main body combined operation is realized by two waling stripes.
The operator of existing high voltage isolator and the operator of three-phase shortcircuit disconnecting switch body（I.e. each phase short circuit moving contact）
Between be provided with mechanical locking device, high voltage isolator operate close a floodgate when, short circuit isolation switch can not close a floodgate, reaching prevents from missing
Operating function.
Further, the mounting bracket is provided with monopole earthing switch operating mechanism, and horizontal stand is provided with installation chassis,
Support frame is housed on installation chassis, earthing knife-switch rotating shaft is housed on support frame, led in earthing knife-switch rotating shaft equipped with ground connection movable feeler lever, earthing knife-switch rotating shaft
Driven connecting lever to be crossed with the second operation pull bar to be connected, the second operation pull bar is connected by active connecting lever with the second vertical links, and second
Vertical links is connected with monopole earthing switch operating mechanism.The ground connection stationary contact of monopole earthed switch is provided with short circuit connection row
Head, grounding static contact are located between B phase high voltage isolator bodies and C phase high voltage isolator bodies.
Short switch operating mechanism is existing CS17 types manual-operating mechanism or CJ12 motor-operating mechanisms, equipped with hand
Handle.Short switch operating mechanism is that short-circuit moving contact realizes motion and completion point, the power resources of closing operation.
Monopole earthing switch operating mechanism is existing CS17 types manual-operating mechanism, equipped with handle.
Before use, by three-phase high-voltage isolating switch body（That is A phases high voltage isolator body, B phase high voltage isolator sheets
Body and C phase high voltage isolator bodies）It is arranged in front of existing three-phase high-voltage isolating switch G, three-phase shortcircuit static contact is（A phases
Short-circuit static contact, the short-circuit static contact of B phases and the short-circuit static contact of C phases）It is installed on existing three-phase high-voltage isolating switch G contact wiring
Seat side.Existing high voltage isolator G can be double-column horizontal rotary isolation switch etc..
There is ice-melt short-circuit as previously described and the switching method of the high voltage isolator of conventional func switching is：
When switching to ice-melt short-circuit function by conventional func, the handle of first 90 ° of rotations monopole earthing switch operating mechanism counterclockwise,
Monopole earthing switch operating mechanism drives the rotation of the second vertical links, and the second vertical links drives the rotation of active connecting lever, actively turned
Arm drives the second operation pull bar to move forward and backward, and the second operation pull bar drives earthing knife-switch rotating shaft to rotate by driven connecting lever, ground swivel
The rotation of axle drives ground connection movable feeler lever to carry out downward 90 ° of rotations, and ground connection movable feeler lever is rotated down around earthing knife-switch rotating shaft, is grounded dynamic
The disengaging of feeler lever and grounding static contact, complete ground connection movable feeler lever sub-switching operation.The handle of 90 ° of rotary operation mechanisms clockwise again,
Operational torque drives the rotation porcelain vase located at C phase high voltage isolator bodies by the first vertical links and the first operation pull bar
The rotary shaft bearing rotation of lower end, the rotary shaft bearing rotation located at the lower end of the rotation porcelain vase of C phase high voltage isolator bodies
The rotary shaft bearing of the lower end of the rotation porcelain vase located at B phase high voltage isolator bodies is driven to rotate by the second waling stripe,
Rotation located at the rotary shaft bearing of the lower end of the rotation porcelain vase of B phase high voltage isolator bodies is driven by first level connecting rod
Rotary shaft bearing located at the lower end of the rotation porcelain vase of A phase high voltage isolator bodies follows rotation, each rotary shaft bearing difference
Corresponding short-circuit moving contact is driven to rotate horizontally 90 ° by different rotation porcelain vases；When each phase short circuit moving contact rotates horizontally
During to 90 °, the end of each mutually short-circuit moving contact contacts with corresponding short-circuit static contact respectively, completes three-phase shortcircuit disconnecting switch
Closing operation.
When switching to conventional func by ice-melt short-circuit function, first 90 ° clockwise rotate monopole earthing switch operating mechanism
Handle, monopole earthing switch operating mechanism drive the rotation of the second vertical links, and the second vertical links drives the rotation of active connecting lever, main
Dynamic connecting lever drives the second operation pull bar to move forward and backward, and the second operation pull bar drives earthing knife-switch rotating shaft to rotate by driven connecting lever, ground
The rotation of swivel axle drives ground connection movable feeler lever to carry out upward 90 ° of rotations, and ground connection movable feeler lever rotates up around earthing knife-switch rotating shaft, with ground connection
Static contact contacts, and completes ground connection movable feeler lever closing operation.The handle of 90 ° of rotary operation mechanisms of another mistake hour hands, operational torque pass through
First vertical links and the first operation pull bar drive the rotary shaft of the lower end of the rotation porcelain vase located at C phase high voltage isolator bodies
Bearing rotates, and the rotary shaft bearing rotation located at the lower end of the rotation porcelain vase of C phase high voltage isolator bodies is horizontal by second
Connecting rod drive located at B phase high voltage isolator bodies rotation porcelain vase lower end rotary shaft bearing rotation, located at B phases high pressure every
From Switch main body rotation porcelain vase lower end rotary shaft bearing rotation by first level connecting rod drive located at A phases high pressure every
Rotary shaft bearing from the lower end of the rotation porcelain vase of Switch main body follows rotation, and each rotary shaft bearing passes through different rotations respectively
Porcelain vase drives corresponding short-circuit moving contact to rotate horizontally 90 °；It is each mutually short when each phase short circuit moving contact is rotated horizontally to 90 °
The end of road moving contact departs from corresponding short-circuit static contact respectively, the sub-switching operation of the short circuit isolation Switch main body of completion.
When short-circuit moving contact rotates horizontally 90 °, short-circuit moving contact using the one end being connected with rotation porcelain vase as contact center point,
The short-circuit moving contact other end rotates horizontally around the contact center point, and realization is contacting and separating with short-circuit static contact, Ci Zhongfang
Formula can be described as horizontal divide-shut brake.
Be grounded movable feeler lever up and down 90 ° of rotations when, ground connection movable feeler lever using with one end that earthing knife-switch rotating shaft is connected as feeler lever central point,
It is grounded feeler lever central point described in the movable feeler lever other end to rotate up and down, realization is contacting and separating with grounding static contact.
As a result of above-mentioned technical scheme, compared with prior art, the present invention is rotated using existing double-column horizontal
Disconnecting switch is improved, and is designed to there is the structure of the high voltage isolator of new ice-melt short circuit and conventional func switching.Only
Need, by monopole earthing switch operating mechanism, to make ground connection movable feeler lever contact with grounding static contact, it is possible to according to original isolation
Normal operation under the normal mode of switch.When needing circuit carrying out short-circuit, original double-column horizontal rotation isolation need to be only pulled open
After switch, ground connection movable feeler lever and grounding static contact are then pulled open, then short-circuit moving contact is contacted with short-circuit static contact, you can complete
The three-phase shortcircuit connection of transmission line of electricity, completing operation only needs or so 3-5 minutes, and the job safety of maintainer is completely eliminated
Risk.
The existing high voltage isolator with ice-melt short circuit and conventional func switching uses vertical division brake structure, vertically
Division brake structure can only use small supporting insulator support short circuit grounding switch flow passage component, and prop up because being limited by physical dimension
Support insulator is horizontally oriented stress, and because short circuit grounding switchs weight, bending moment power is very big, short circuit grounding switch breaking-closing operating
Power is big, thus small support Insulator detection problem often occurs.And existing vertical division brake structure short circuit ice-melt disconnecting switch is adopted
With every phase axle sleeve and threephase switch major axis concentric fit structure, three-phase shortcircuit disconnecting switch is difficult to ensure that card is same per phase axle sleeve hole when installing
Heart degree, coordinate difficulty big with three-phase shortcircuit major axis, and friction is big, therefore, vertical division brake structure short circuit ice-melt disconnecting switch
Operational torque is big, malfunction.In addition, vertical opening type structure short circuit ice-melt disconnecting switch is because can not will be short operating physical force is big
Conducting rod design in road is too big, and through-current capability compared to smaller, take time relatively long by ice-melt.
The divide-shut brake of short circuit isolation switch of the present invention uses horizontal division brake structure, and rotation porcelain vase is right angle setting, conductive
Part is that short-circuit moving contact is arranged on above rotation porcelain vase, and rotation porcelain vase is vertical direction stress, and short circuit isolation is switched by conduction
Part gravity influence is small, and for rotation porcelain vase mainly by self gravitation directional pressure, bearing capacity is strong, therefore, short circuit isolation switch behaviour
It is small to make torque, short-circuit moving contact can be made high current structure, i.e., short-circuit moving contact surface area is than existing short-circuit moving contact
Greatly（Surface area can increase 30% -80%）, through-current capability is strong（The electric current that i.e. short-circuit moving contact can pass through is bigger）, it is logical big during ice-melt
Electric current can shorten the ice-melt time.3150A high currents can such as be led to when short circuit isolation switchs ice-melt, shorten the ice-melt time.This hair
It is bright by rotating flexible bearing block, operating physical force needed for short-circuit ice-melt disconnecting switch is small.Short circuit isolation switch of the present invention is by institute
Need operating physical force small, during short-circuit ice-melt disconnecting switch divide-shut brake, the short-circuit gravity of moving contact 5 operating physical force is influenceed it is smaller, it is manually operated
Operational torque is small needed for mechanism, can be with lighter divide-shut brake.
The present invention is structurally simple, economical to be applicable and easily implements, and using effect is considerable.Using the present invention, ice-melt can be realized
Short circuit and conventional func（Operation and ground connection）Promptly switch, be rapidly completed the three-phase shortcircuit connection of transmission line of electricity end, not only
Improve operating efficiency, reduce operating risk, the outward appearance main structure of prototype disconnecting switch and basic installation dimension need not be changed again,
Economic benefit protrudes, moreover it is possible to realizes ice-melt short circuit and conventional func（Operation and ground connection）Promptly switch.
Brief description of the drawings
Fig. 1 is the front view that the present invention has the high voltage isolator of ice-melt short circuit and conventional func switching；
Fig. 2 is shown with the side view of the high voltage isolator of ice-melt short circuit and conventional func switching by Fig. 1；
Fig. 3 is shown with the top view of the high voltage isolator of ice-melt short circuit and conventional func switching by Fig. 1.
Fig. 4 is that ice-melt short circuit isolation switchs link transmission figure.
Embodiment
The present invention is described in further detail below in conjunction with drawings and examples.
Referring to the drawings, there are the high voltage isolator of ice-melt short circuit and conventional func switching, including horizontal stand 15, installation branch
Frame 16, short switch operating mechanism 17, three-phase high-voltage isolating switch body 1 and three-phase shortcircuit disconnecting switch body 2, short switch
Operating mechanism 17 is in mounting bracket 16, and horizontal stand 15 is located at the top of mounting bracket 16, three-phase high-voltage isolating switch body 1
Loaded on the top of horizontal stand 15, three-phase high-voltage isolating switch body 1 includes A phase high voltage isolators body, B phase high_voltage isolations are opened
Close body and C phase high voltage isolator bodies；Three-phase shortcircuit disconnecting switch body 2 includes three-phase shortcircuit moving contact 5 and three-phase is short
Road static contact 4；Three-phase shortcircuit moving contact 5 includes the short-circuit moving contact of A phases, the short-circuit moving contact of B phases and the short-circuit moving contact of C phases；Three-phase
Short-circuit static contact 4 includes the short-circuit static contact of A phases, the short-circuit static contact of B phases and the short-circuit static contact of C phases；The short-circuit moving contact of A phases is located at A
The upper end of rotation porcelain vase 20 of phase high voltage isolator body, the short-circuit moving contact of B phases are located at the rotation of B phase high voltage isolator bodies
The upper end of porcelain vase 20, the short-circuit moving contact of C phases are located at the upper end of rotation porcelain vase 20 of C phase high voltage isolator bodies；Each phase high_voltage isolation
Switch main body（That is A phases high voltage isolator body, B phase high voltage isolator bodies and C phase high voltage isolator bodies）Rotation
The lower end for turning porcelain vase 20 is equipped with corresponding rotary shaft bearing 19, under the rotation porcelain vase of C phase high voltage isolator bodies
The rotary shaft bearing at end is connected by the first operation pull bar 8 with the first vertical links 7, and the first vertical links 7 is grasped with short switch
Make mechanism 17 to connect.
Binding post on binding post, the short-circuit moving contact of B phases on the short-circuit moving contact of A phases with the short-circuit moving contact of C phases
Binding post by short circuit connection arrange 3 be connected.
Equipped with the first linkage connecting lever 21- in the rotary shaft bearing of the lower end of the rotation porcelain vase of A phase high voltage isolator bodies
It is high equipped with the second linkage connecting lever 21-2, C phase in the rotary shaft bearing of the lower end of the rotation porcelain vase of 1, B phase high voltage isolator body
Press and the 3rd linkage connecting lever 21-3 is respectively arranged with the rotary shaft bearing of the lower end of the rotation porcelain vase of disconnecting switch body, the first linkage is turned
Arm 21-1 is connected by first level connecting rod 6-1 with the second linkage connecting lever 21-2, and the second linkage connecting lever 21-2 is horizontal by second
Connecting rod 6-2 is connected with the 3rd linkage connecting lever 21-3.Linkage behaviour is realized by waling stripe between three-phase shortcircuit disconnecting switch body 2
Make.
Before use, by three-phase high-voltage isolating switch body 1（That is A phases high voltage isolator body, B phase high voltage isolators
Body and C phase high voltage isolator bodies）It is arranged in front of existing three-phase high-voltage isolating switch G, three-phase shortcircuit static contact 4 is（A
Mutually short-circuit static contact, the short-circuit static contact of B phases and the short-circuit static contact of C phases）The contact for being installed on existing three-phase high-voltage isolating switch G connects
Line seat side.Existing high voltage isolator G can be double-column horizontal rotary isolation switch etc..
During closing operation, firmly the handle of actuating short switch operating mechanism 17 turns clockwise 90 °, and operational torque passes through
First vertical links 7 and the first operation pull bar 8 drive the rotation of the lower end of the rotation porcelain vase located at C phase high voltage isolator bodies
Bearing block rotates, and the rotary shaft bearing rotation located at the lower end of the rotation porcelain vase of C phase high voltage isolator bodies passes through the second water
Flat connecting rod 6-2 drives the rotary shaft bearing rotation of the lower end of the rotation porcelain vase located at B phase high voltage isolator bodies, located at B phases
The rotation of the rotary shaft bearing of the lower end of the rotation porcelain vase of high voltage isolator body is driven by first level connecting rod 6-1 and is located at
The rotary shaft bearing of the lower end of the rotation porcelain vase of A phase high voltage isolator bodies follows rotation, and each rotary shaft bearing 19 is led to respectively
Crossing different rotation porcelain vases 20 drives corresponding short-circuit moving contact 5 to rotate horizontally 90 °；When the horizontal rotation of each phase short circuit moving contact 5
When going to 90 °, the end of each mutually short-circuit moving contact 5 contacts with corresponding short-circuit static contact 4 respectively, completes three-phase shortcircuit and keeps apart
Close 2 closing operation.
During sub-switching operation, the handle of 90 ° of rotation short switches operating mechanism 17 counterclockwise, its operating principle and making process
It is identical.
When short-circuit moving contact 5 rotates horizontally, short-circuit moving contact 5 point centered on the one end being connected with rotation porcelain vase 20 is short
The other end of road moving contact 5 rotates horizontally around the central point, and realization is contacting and separating with short-circuit static contact 4, and such a mode can
Referred to as horizontal divide-shut brake.
The operator of existing high voltage isolator 1 and the operator of three-phase shortcircuit disconnecting switch body 2（I.e. each phase short circuit moving contact
5）Between be provided with mechanical locking device, when high voltage isolator 1 is operated and closed a floodgate, short circuit isolation switch 2 can not close a floodgate, and reach anti-
Only maloperation function.
The mounting bracket 16 is provided with monopole earthing switch operating mechanism 18, and horizontal stand 15 is provided with installation chassis
10, install and support frame 23 is housed on chassis 10, earthing knife-switch rotating shaft 11 is housed on support frame 23, moves and touches equipped with ground connection in earthing knife-switch rotating shaft 11
Bar 12, earthing knife-switch rotating shaft 11 are connected by driven connecting lever 22 with the second operation pull bar 14, and the second operation pull bar 14 passes through active connecting lever
24 are connected with the second vertical links 9, and the second vertical links 9 is connected with monopole earthing switch operating mechanism 18.In short circuit connection row 3
The grounding static contact 13 of monopole earthed switch is provided with, grounding static contact 13 is located at B phase high voltage isolator bodies and C phase high pressures
Between disconnecting switch body.
When monopole grounding switch tripping operates, the first handle of 90 ° of rotation process monopoles earthing switch operating mechanism 18 counterclockwise,
Monopole earthing switch operating mechanism 18 drives the second vertical links 9 to rotate, and the second vertical links 9 drives active connecting lever 24 to rotate,
Active connecting lever 24 drives the second operation pull bar 14 to move forward and backward, and the second operation pull bar 14 drives ground swivel by driven connecting lever 22
Axle 11 rotates, and the rotation of earthing knife-switch rotating shaft 11 drives ground connection movable feeler lever 12 to carry out downward 90 ° of rotations, and ground connection movable feeler lever 12 is around ground swivel
Axle 11 is rotated down, and is grounded the disengaging of movable feeler lever 12 and grounding static contact 13, completes the ground connection sub-switching operation of movable feeler lever 12.Close
When lock operates, the handle of 90 ° of rotary operation mechanisms 18 clockwise, its feed motion principle is identical with separating brake.
Short circuit connection row 3, short-circuit static contact 4, short-circuit moving contact 5, first level connecting rod 6-1, the second waling stripe 6-2,
First vertical links 7, first operation pull bar 8, the second vertical links 9, installation chassis 10, earthing knife-switch rotating shaft 11, ground connection movable feeler lever 12,
Grounding static contact 13, second operates pull bar 14, monopole earthing switch operating mechanism 18 collectively forms ice-melt component.Short circuit connection row
3rd, it is grounded movable feeler lever 12, grounding static contact 13 collectively forms ice-melt short-circuit loop.
Short switch operating mechanism 17 can be existing CS17 types manual-operating mechanism or CJ12 motor-operating mechanisms, equipped with
Handle.Short switch operating mechanism 17 is that short-circuit moving contact 5 realizes motion and completion point, the power resources of closing operation.
Monopole earthing switch operating mechanism 18 or existing CS17 types manual-operating mechanism, equipped with handle.
There is ice-melt short-circuit as previously described and the switching method of the high voltage isolator of conventional func switching is：
When switching to ice-melt short-circuit function by conventional func, the hand of first 90 ° of rotation monopoles earthing switch operating mechanism 18 counterclockwise
Handle, monopole earthing switch operating mechanism 18 drive the second vertical links 9 to rotate, and the second vertical links 9 drives active connecting lever 24 to revolve
Turn, active connecting lever 24 drives the second operation pull bar 14 to move forward and backward, and the second operation pull bar 14 drives ground by driven connecting lever 22
Swivel axle 11 rotates, and the rotation of earthing knife-switch rotating shaft 11 drives ground connection movable feeler lever 12 to carry out downward 90 ° of rotations, and ground connection movable feeler lever 12 is around ground
Swivel axle 11 is rotated down, and is grounded the disengaging of movable feeler lever 12 and grounding static contact 13, completes ground connection movable feeler lever 12 separating brake behaviour
Make.The handle of 90 ° of rotary operation mechanisms 17 clockwise again, operational torque pass through the first vertical links 7 and the first operation band of pull bar 8
The rotary shaft bearing rotation of the lower end of the dynamic rotation porcelain vase located at C phase high voltage isolator bodies, located at C phase high voltage isolators
The rotary shaft bearing rotation of the lower end of the rotation porcelain vase of body is driven by the second waling stripe 6-2 opens located at B phase high_voltage isolations
The rotary shaft bearing rotation of the lower end of the rotation porcelain vase of body is closed, under the rotation porcelain vase of B phase high voltage isolator bodies
The rotation of the rotary shaft bearing at end drives the rotation porcelain vase located at A phase high voltage isolator bodies by first level connecting rod 6-1
The rotary shaft bearing of lower end follow rotation, each rotary shaft bearing 19 is driven corresponding short by different rotation porcelain vases 20 respectively
Road moving contact 5 rotates horizontally 90 °；When each phase short circuit moving contact 5 is rotated horizontally to 90 °, the end of each mutually short-circuit moving contact 5
Contacted respectively with corresponding short-circuit static contact 4, complete the closing operation of three-phase shortcircuit disconnecting switch 2.
When switching to conventional func by ice-melt short-circuit function, first 90 ° clockwise rotate monopole earthing switch operating mechanism 18
Handle, monopole earthing switch operating mechanism 18 drive the second vertical links 9 rotate, the second vertical links 9 drive active connecting lever
24 rotations, active connecting lever 24 drive the second operation pull bar 14 to move forward and backward, and the second operation pull bar 14 passes through the driven band of connecting lever 22
Dynamic earthing knife-switch rotating shaft 11 rotates, and the rotation of earthing knife-switch rotating shaft 11 drives ground connection movable feeler lever 12 to carry out upward 90 ° of rotations, is grounded movable feeler lever 12
Rotate up around earthing knife-switch rotating shaft 11, contacted with grounding static contact 13, complete the ground connection closing operation of movable feeler lever 12.90 ° of another mistake hour hands
The handle of short switch operating mechanism 17 is rotated, operational torque is driven and is located at by the first vertical links 7 and the first operation pull bar 8
The rotary shaft bearing rotation of the lower end of the rotation porcelain vase of C phase high voltage isolator bodies, located at C phase high voltage isolator bodies
The rotary shaft bearing rotation for rotating the lower end of porcelain vase is located at B phase high voltage isolator bodies by the second waling stripe 6-2 drives
Rotation porcelain vase lower end rotary shaft bearing rotation, located at B phase high voltage isolator bodies rotation porcelain vase lower end turn
The rotation of moving axis bearing drives the lower end of the rotation porcelain vase located at A phase high voltage isolator bodies by first level connecting rod 6-1
Rotary shaft bearing follow rotation, each rotary shaft bearing 19 drives corresponding short circuit is dynamic to touch by different rotation porcelain vases 20 respectively
First 5 rotate horizontally 90 °；When each phase short circuit moving contact 5 is rotated horizontally to 90 °, the end of each mutually short-circuit moving contact 5 respectively with
Corresponding short-circuit static contact 4 departs from, the sub-switching operation of the short circuit isolation Switch main body 2 of completion.
When short-circuit moving contact 5 rotates horizontally 90 °, short-circuit moving contact 5 is using the one end being connected with rotation porcelain vase 20 as in contact
Heart point, the short-circuit other end of moving contact 5 rotate horizontally around the contact center point, and realization is contacting and separating with short-circuit static contact 4,
Such a mode can be described as horizontal divide-shut brake.
Movable feeler lever is grounded about 12 during 90 ° of rotations, ground connection movable feeler lever 12 is using with one end that earthing knife-switch rotating shaft 11 is connected as feeler lever
Central point, it is grounded feeler lever central point described in the other end of movable feeler lever 12 and rotates up and down, realize the contact with grounding static contact 13 and divide
From.
A kind of preferred embodiment of the present invention is discussed in detail above.The embodiment is simply used
Understand the core concept of the present invention in help.It should be pointed out that to those of ordinary skill in the art, this hair is not being departed from
On the premise of bright principle, some improvement and modification can also be carried out to the present invention, these are improved and modification falls within power of the present invention
The protection domain that profit requires.
Claims (5)
1. there is the high voltage isolator of ice-melt short circuit and conventional func switching, it is characterised in that including horizontal stand, installation branch
Frame, short switch operating mechanism, three-phase high-voltage isolating switch body and three-phase shortcircuit disconnecting switch body, short switch operation machine
Structure is in mounting bracket, and horizontal stand is at the top of mounting bracket, and three-phase high-voltage isolating switch body is loaded on horizontal stand
Side, three-phase high-voltage isolating switch body include A phase high voltage isolators body, B phase high voltage isolator bodies and C phases high pressure every
From Switch main body；Three-phase shortcircuit disconnecting switch body includes three-phase shortcircuit moving contact and three-phase shortcircuit static contact；Three-phase shortcircuit moves
Contact includes the short-circuit moving contact of A phases, the short-circuit moving contact of B phases and the short-circuit moving contact of C phases；Three-phase shortcircuit static contact includes the short circuit of A phases
Static contact, the short-circuit static contact of B phases and the short-circuit static contact of C phases；The short-circuit moving contact of A phases is located at the rotation of A phase high voltage isolator bodies
Turn porcelain vase upper end, the short-circuit moving contact of B phases is located at the rotation porcelain vase upper end of B phase high voltage isolator bodies, and the short-circuit moving contact of C phases is set
In the rotation porcelain vase upper end of C phase high voltage isolator bodies；The lower end of the rotation porcelain vase of A phase high voltage isolator bodies, B phases are high
The lower end of the rotation porcelain vase of disconnecting switch body and the lower end of the rotation porcelain vase of C phase high voltage isolator bodies is pressed to be equipped with accordingly
Rotary shaft bearing, located at C phase high voltage isolator bodies rotation porcelain vase lower end rotary shaft bearing pass through first operation
Pull bar is connected with the first vertical links, and the first vertical links is connected with short switch operating mechanism.
2. there is the high voltage isolator of ice-melt short circuit and conventional func switching according to claim 1, it is characterised in that A phases
The binding post on binding post, the short-circuit moving contact of B phases on short-circuit moving contact leads to the binding post on the short-circuit moving contact of C phases
Short circuit connection row is crossed to be connected.
3. the high voltage isolator according to claim 1 or claim 2 for having ice-melt short circuit and conventional func switching, it is characterised in that A
Equipped with the first linkage connecting lever, B phase high_voltage isolations in the rotary shaft bearing of the lower end of the rotation porcelain vase of phase high voltage isolator body
Second linkage connecting lever is housed in the rotary shaft bearing of the lower end of the rotation porcelain vase of Switch main body, C phase high voltage isolator bodies
Rotate porcelain vase lower end rotary shaft bearing on be respectively arranged with the 3rd linkage connecting lever, first linkage connecting lever by first level connecting rod with
Second linkage connecting lever is connected, and the second linkage connecting lever is connected by the second waling stripe with the 3rd linkage connecting lever.
4. the high voltage isolator according to claim 1 or claim 2 for having ice-melt short circuit and conventional func switching, it is characterised in that
The mounting bracket is provided with monopole earthing switch operating mechanism, and horizontal stand is provided with installation chassis, installs and be equipped with chassis
Support frame, is equipped with earthing knife-switch rotating shaft on support frame, and equipped with ground connection movable feeler lever in earthing knife-switch rotating shaft, earthing knife-switch rotating shaft passes through driven connecting lever and the
Two operation pull bars are connected, and the second operation pull bar is connected by active connecting lever with the second vertical links, the second vertical links and monopole
Earthing switch operating mechanism is connected；The grounding static contact of monopole earthed switch is provided with short circuit connection row, grounding static contact is set
Between B phase high voltage isolator bodies and C phase high voltage isolator bodies.
5. there is the switching side of the high voltage isolator of ice-melt short circuit and conventional func switching as described in claim any one of 1-4
Method, it is characterised in that comprise the following steps：
When switching to ice-melt short-circuit function by conventional func, the handle of first 90 ° of rotations monopole earthing switch operating mechanism counterclockwise,
Monopole earthing switch operating mechanism drives the rotation of the second vertical links, and the second vertical links drives the rotation of active connecting lever, actively turned
Arm drives the second operation pull bar to move forward and backward, and the second operation pull bar drives earthing knife-switch rotating shaft to rotate by driven connecting lever, ground swivel
The rotation of axle drives ground connection movable feeler lever to carry out downward 90 ° of rotations, and ground connection movable feeler lever is rotated down around earthing knife-switch rotating shaft, is grounded dynamic
The disengaging of feeler lever and grounding static contact, complete ground connection movable feeler lever sub-switching operation；The handle of 90 ° of rotary operation mechanisms clockwise again,
Operational torque drives the rotation porcelain vase located at C phase high voltage isolator bodies by the first vertical links and the first operation pull bar
The rotary shaft bearing rotation of lower end, the rotary shaft bearing rotation located at the lower end of the rotation porcelain vase of C phase high voltage isolator bodies
The rotary shaft bearing of the lower end of the rotation porcelain vase located at B phase high voltage isolator bodies is driven to rotate by the second waling stripe,
Rotation located at the rotary shaft bearing of the lower end of the rotation porcelain vase of B phase high voltage isolator bodies is driven by first level connecting rod
Rotary shaft bearing located at the lower end of the rotation porcelain vase of A phase high voltage isolator bodies follows rotation, each rotary shaft bearing difference
Corresponding short-circuit moving contact is driven to rotate horizontally 90 ° by different rotation porcelain vases；When each phase short circuit moving contact rotates horizontally
During to 90 °, the end of each mutually short-circuit moving contact contacts with corresponding short-circuit static contact respectively, completes three-phase shortcircuit disconnecting switch
Closing operation；
When switching to conventional func by ice-melt short-circuit function, the handle of first 90 ° of rotations monopole earthing switch operating mechanism clockwise,
Monopole earthing switch operating mechanism drives the rotation of the second vertical links, and the second vertical links drives the rotation of active connecting lever, actively turned
Arm drives the second operation pull bar to move forward and backward, and the second operation pull bar drives earthing knife-switch rotating shaft to rotate by driven connecting lever, ground swivel
The rotation of axle drives ground connection movable feeler lever to carry out upward 90 ° of rotations, and ground connection movable feeler lever rotates up around earthing knife-switch rotating shaft, with being grounded stationary contact
Head contact, complete ground connection movable feeler lever closing operation；The handle of 90 ° of rotary operation mechanisms of another mistake hour hands, operational torque pass through first
Vertical links and the first operation pull bar drive the rotary shaft bearing of the lower end of the rotation porcelain vase located at C phase high voltage isolator bodies
Rotation, the rotary shaft bearing rotation located at the lower end of the rotation porcelain vase of C phase high voltage isolator bodies pass through the second waling stripe
The rotary shaft bearing rotation of the lower end of the rotation porcelain vase located at B phase high voltage isolator bodies is driven, is opened located at B phase high_voltage isolations
The rotation for closing the rotary shaft bearing of the lower end of the rotation porcelain vase of body is opened by the drive of first level connecting rod located at A phase high_voltage isolations
The rotary shaft bearing for closing the lower end of the rotation porcelain vase of body follows rotation, and each rotary shaft bearing passes through different rotation porcelain vases respectively
Corresponding short-circuit moving contact is driven to rotate horizontally 90 °；When each phase short circuit moving contact is rotated horizontally to 90 °, each mutually short circuit is dynamic
The end of contact departs from corresponding short-circuit static contact respectively, the sub-switching operation of the short circuit isolation Switch main body of completion；
When short-circuit moving contact rotates horizontally 90 °, short-circuit moving contact is using the one end being connected with rotation porcelain vase as contact center point, short circuit
The moving contact other end rotates horizontally around the contact center point, and realization is contacting and separating with short-circuit static contact, and such a mode can
Referred to as horizontal divide-shut brake；
When being grounded 90 ° of rotations above and below movable feeler lever, ground connection movable feeler lever is with one end that earthing knife-switch rotating shaft is connected as feeler lever central point, to be grounded
Feeler lever central point described in the movable feeler lever other end rotates up and down, and realization is contacting and separating with grounding static contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710961223.8A CN107527765B (en) | 2017-10-17 | 2017-10-17 | High-voltage isolating switch with ice-melting short circuit and conventional function switching and switching method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710961223.8A CN107527765B (en) | 2017-10-17 | 2017-10-17 | High-voltage isolating switch with ice-melting short circuit and conventional function switching and switching method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107527765A true CN107527765A (en) | 2017-12-29 |
| CN107527765B CN107527765B (en) | 2020-04-07 |
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ID=60684796
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710961223.8A Active CN107527765B (en) | 2017-10-17 | 2017-10-17 | High-voltage isolating switch with ice-melting short circuit and conventional function switching and switching method thereof |
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| CN (1) | CN107527765B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108336688A (en) * | 2018-04-23 | 2018-07-27 | 贵州电网有限责任公司 | A kind of horizontal access device of mobile DC ice melting |
| CN109004535B (en) * | 2018-06-22 | 2024-04-30 | 苏州达博思智能电网装备制造有限公司 | Isolation switch |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202473707U (en) * | 2012-03-26 | 2012-10-03 | 都匀供电局 | Isolation switch with ice-melting short circuit function |
| CN203325783U (en) * | 2013-04-15 | 2013-12-04 | 都匀供电局 | Isolation switch with ice-melting short circuit and grounding switching functions |
| CN207602457U (en) * | 2017-10-17 | 2018-07-10 | 湖南长高高压开关有限公司 | There is the high voltage isolator of ice-melt short circuit and conventional func switching |
-
2017
- 2017-10-17 CN CN201710961223.8A patent/CN107527765B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202473707U (en) * | 2012-03-26 | 2012-10-03 | 都匀供电局 | Isolation switch with ice-melting short circuit function |
| CN203325783U (en) * | 2013-04-15 | 2013-12-04 | 都匀供电局 | Isolation switch with ice-melting short circuit and grounding switching functions |
| CN207602457U (en) * | 2017-10-17 | 2018-07-10 | 湖南长高高压开关有限公司 | There is the high voltage isolator of ice-melt short circuit and conventional func switching |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108336688A (en) * | 2018-04-23 | 2018-07-27 | 贵州电网有限责任公司 | A kind of horizontal access device of mobile DC ice melting |
| CN108336688B (en) * | 2018-04-23 | 2023-11-14 | 贵州电网有限责任公司 | Mobile direct-current ice melting horizontal access device |
| CN109004535B (en) * | 2018-06-22 | 2024-04-30 | 苏州达博思智能电网装备制造有限公司 | Isolation switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107527765B (en) | 2020-04-07 |
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