CN104538916B - Detachable bus unit and rigid gas insulation electric transmission line - Google Patents
Detachable bus unit and rigid gas insulation electric transmission line Download PDFInfo
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- CN104538916B CN104538916B CN201510017426.2A CN201510017426A CN104538916B CN 104538916 B CN104538916 B CN 104538916B CN 201510017426 A CN201510017426 A CN 201510017426A CN 104538916 B CN104538916 B CN 104538916B
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- bus unit
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Abstract
The invention provides a detachable bus unit and a rigid gas insulation electric transmission line. The detachable bus unit comprises a center conductor, a basin-type insulator, a fixed contact, a sliding contact base and an outer shell, the center conductor is arranged in the outer shell, the two ends of the basin-type insulator are fixed to the outer shell, the center conductor is cylindrical, the fixed contact is connected with an insert to achieve electrical connection between the fixed contact and the center conductor, the sliding contact base is of a cylindrical structure, one end of the sliding contact base is in sleeving connection to the center conductor, the other end of the sliding contact base is in sleeved connection to a fixed contact of a first basic bus unit to achieve electrical connection between the center conductor and the fixed contact of the first basic bus unit, and the first basic bus unit is a bus unit connected with the detachable bus unit and located on the left side of the detachable bus unit in the rigid gas insulation electric transmission line. The detachable bus unit is a simple detachable bus unit and has the higher long-term through-current capacity and the higher short-circuit fault through-current capacity.
Description
Technical field
The present invention relates to GIL (Gas Insulated Metal Enclosed Transmission Lines, gas is exhausted
Edge metal closed power transmission line or referred to as rigid gas insulated power circuit, abbreviation GIL) technical field, particularly to one
Plant the removable bus unit for high pressure/super-pressure/extra-high voltage GIL and rigid gas insulated power circuit.
Background technology
GIL equipment has reliability height, transmittability is strong, low, safety and environmental protection is lost and installation, operation maintenance convenience etc.
Prominent advantage, is used widely in power engineering, the particularly feature of its high reliability, also obtains in nuclear power field
Accreditation.In addition, in view of the needs of ripe electrical network dilatation and infrastructure Ultra-high Voltage Substations, and twisted polyethylene cable is not only
Transmission line capability is restricted, and is lost big, and reliability is not so good as GIL, and therefore, super-pressure GIL is in big city underground supergrid
In application increasingly increase.
In view of important meaning in electrical network for the GIL equipment, its installing, safeguard and maintenance in the difficult problem that occurs should give more
Pay close attention to because GIL is a kind of transmission facility of shell seal and laying-out is typically longer, break down in the middle of operation or
Periodic maintenance needs to open housing and just can observe device interior situation.The special structure of GIL causes its dismounting relatively difficult, because
And removable bus unit is requisite significant components in GIL design, it is the maintenance of fault bus section, change that provide can
Can be with convenience.
Content of the invention
It is an object of the invention to provide a kind of removable bus unit, housing is led by movably removable short cylinder, center
Body passes through this easy structure of slider seat, reaches GIL equipment and facilitates disassembling function in longer lines.
In order to solve the above problems, the technical scheme that one aspect of the present invention provides is as follows：
A kind of removable bus unit, including center conductor, disc insulator and shell, described center conductor is placed in described outer
In shell, and with described disc insulator on inserts electrical communication, the two ends of described disc insulator are fixed on described shell,
Described center conductor is cylindrical in shape, and described removable bus unit also includes：Slider seat and static contact；Described removable bus unit
Slider seat be cylindrical in shape structure, one end of the slider seat of described removable bus unit is socketed on described removable bus list
The center conductor of unit, the other end of the slider seat of described removable bus unit is socketed on the stationary contact of the first basic bus unit
Head is to realize the center conductor of described removable bus unit and the static contact electrical communication of described first basic bus unit；Described
The static contact of removable bus unit is cylindrical in shape structure, one end of static contact of described removable bus unit and described disc insulator
Inserts connect to realize the static contact of described removable bus unit and described inserts electrical communication, described removable bus unit
The other end of static contact is plugged in the slider seat of the second basic bus unit；Wherein, described first basic bus unit and
Described second basic bus unit is to be connected with described removable bus unit in rigid gas insulated power circuit, and is respectively in
The bus unit on the left of described removable bus unit and right side.
It is preferable that described removable bus unit also includes in removable bus unit as above：Screw-contact；
Inwall at the symmetrical two ends of described slider seat is respectively equipped with cannelure, and described screw-contact embeds described cannelure
In.
It is preferable that described shell is cylindrical in shape in removable bus unit as above, and include inflator pump and removable short
Cylinder；One end of described inflator pump is fixed with described disc insulator, the other end of described inflator pump and the one of described removable short cylinder
End connects, and is the scalable length connecting to change described shell, thus being beneficial between described inflator pump and described removable short cylinder
The slider seat of described removable bus unit is removed from the static contact of the described first basic bus unit.
In removable bus unit as above it is preferable that described removable short cylinder in described inflator pump parallel sliding with
Change the length of described shell；One end of described removable short cylinder is connected by flange with the other end of described inflator pump, described method
Blue it is provided with sealing ring and described removable short cylinder and described inflator pump between.
It is preferable that described shell also includes in removable bus unit as above：Bellows；The one of described bellows
End is connected with one end of described inflator pump, and the other end of described bellows is fixed with described disc insulator.
It is preferable that described removable bus unit also includes in removable bus unit as above：First locating rod and
Two locating rods；One end of first locating rod of described removable bus unit is located at the cavity of the static contact of described removable bus unit
In and be connected with described inserts, the second locating rod spiral shell of the other end of described first locating rod and described second basic bus unit
Line connects to support the center conductor of the described second basic bus unit；One end of second locating rod of described removable bus unit
Positioned at described removable bus unit center conductor formed cavity in, the second locating rod of described removable bus unit another
Threadeded with the first locating rod of the described first basic bus unit to support the center conductor of described removable bus unit in end
Center conductor to realize described removable bus unit is concentric with described shell.
It is preferable that being provided with the shell to described shell on described shell in removable bus unit as above
The air-filled pore of inflatable body, described disc insulator is provided with through hole, and the air chamber of described disc insulator both sides passes through described leading to
Gas circulation is realized in hole.
It is preferable that described disc insulator is epoxy resin material in removable bus unit as above.
The technical scheme that another aspect of the present invention provides is as follows：
A kind of rigid gas insulated power circuit, including：Removable bus unit, the first basic bus unit and second are basic
Bus unit, the first basic bus unit and the second basic bus unit are respectively in left side and the right side of described removable bus unit
Side, the shell of described removable bus unit is outer with the described first basic bus unit and described second basic bus unit respectively
Shell connects it is characterised in that described removable bus unit is above-mentioned removable bus unit；The center of described removable bus unit
Between the static contact of conductor and described first basic bus unit, the static contact of described removable bus and described second basic bus
Certain interval is all left between the center conductor of unit；The center conductor of described removable bus unit passes through described removable bus list
The slider seat of unit realizes electrical communication or disconnection with the static contact of described first basic bus unit, described removable bus
Static contact is real by the slider seat of the described second basic bus unit with the center conductor of described second basic bus unit
Existing electrical communication or disconnection, the static contact of described first basic bus unit is fixed on the benzvalene form of the described first basic bus unit
On the inserts of insulator, the static contact of described first basic bus unit and the static contact structure phase of described removable bus unit
With the slider seat of described second basic bus unit is identical with the slider holder structure of described removable bus unit.
It is preferable that the disc insulator of described removable bus unit in rigid gas insulated power circuit as above
It is connected by bolt seal with the shell of the described second basic bus unit；The shell of described removable bus unit and described first
The disc insulator of basic bus unit is connected by bolt seal.
Analysis understands, the main bus-bar in the present invention is to disconnect, and the slider seat equipped with screw-contact is broken
Mouth UNICOM, forms conductive channel.Whereby, removable bus fracture is connected (or disconnection), is touched by helical spring by slider seat
Refer to realize the through-flow of conductor, because the electrical pickoff of screw-contact is much so that the present invention has higher through-flow for a long time energy
Power and short trouble through-current capability.
Brief description
Fig. 1 is removable bus unit provided in an embodiment of the present invention and the first basic bus unit and the second basic bus list
The structural representation that unit connects.
Reference implication is：
1 first basic bus unit, 2 disc insulators, 3 static contacts, 4 slider seats,
5 screw-contacts, 6 hand holes, 7 second basic bus units, 8 bellowss,
9 inflator pumps, 10 delta seals, 11, side sealing, 12 flanges,
13 removable short cylinders, 14 center conductors, 150 first locating rods, 151 second locating rods,
20 inserts, 21 basin bottoms, 22 basin edges, 41 column casing sections, 42 left conical cylinder sections, 43 right conical cylinder sections,
15 removable bus units.
Specific embodiment
With reference to the accompanying drawings and detailed description the present invention is described in further details.
Because the circuit of GIL laying during application is typically longer, the bus section, busbar section in therefore GIL includes multiple bus units, female
Line unit has shell and the center conductor being located in shell by the support of insulator, and preferably insulator is disc insulator 2,
The basin of disc insulator 2 is fixed on shell along 22, for easy to use, the basin of each bus unit between adjacent bus unit
Inserts 20 is provided with the basin bottom 21 of formula insulator 2, inserts 20 both sides are connected to center conductor and static contact, static contact with
Inserts is preferably bolted, center conductor and inserts electrical communication, for example, electrically can be joined with inserts 20 by contact base
Logical, i.e. center conductor and contact base grafting, contact base is fixed on inserts, thus realizing center conductor and inserts electrical communication,
And then realize and static contact electrical communication.It is detachably connected successively and multiple bus unit by the shell of multiple bus units
Center conductor be detachably connected formation bus section, busbar section successively, Fig. 1 show the structural representation that 3 bus units are in turn connected to form
Figure, is from left to right followed successively by the first basic bus unit 1, removable bus unit 15, second provided in an embodiment of the present invention basic
Bus unit 7, specifically, the right-hand member of shell of the first basic bus unit 1 is connected with the left end of the shell of removable bus unit 15
Connect, the right-hand member of shell of removable bus unit 15 is connected with the left end of the shell of the second basic bus unit 7, thus ensureing shell
The air-tightness of inner cavity chamber, in order to further enhance the air-tightness of junction between shell, aforementioned connection is preferably bolt seal even
Connect.The static contact of the first basic bus unit 1 is connected with the left end of the center conductor of removable bus unit 15, removable bus unit
15 static contact 3 is connected with the left end of the center conductor of the second basic bus unit 7, thus realize the first basic bus unit 1,
Electrical communication between detachable bus unit 15 and the second basic bus unit 7 center conductor.Due to the bus section, busbar section bag in GIL
Include a kind of detachable bus unit 15 provided in an embodiment of the present invention, provide for the maintenance of bus section, busbar section broken down and changing
Convenience, improves maintenance efficiency.
Specifically, detachable bus unit 15 includes：Center conductor 14, disc insulator 2, shell, static contact 3 and cunning
Movable contact block 4.The inserts 20 that center conductor 14 passes through on disc insulator 2 is placed in shell, and the two ends of disc insulator 2 are fixed
On shell, center conductor 14 is cylindrical in shape, and static contact 3 and center conductor 14 are respectively in the both sides of disc insulator 2, static contact 3
It is connected with inserts 20 to realize static contact 3 and center conductor 14 electrical communication；Slider seat 4 is cylindrical in shape structure, slider
One end of seat 4 is socketed on center conductor 14, and the other end of slider seat 4 is socketed on the static contact 3 of the first basic bus unit 1
To realize the center conductor 14 of removable bus unit and static contact 3 electrical communication of the first basic bus unit 1, the wherein first base
This bus unit 1 is to be connected with removable bus unit 15 in GIL, and is located at the bus unit in removable bus unit 15 left side.
Leaving gap between the static contact 3 of the first basic bus unit 1 and the center conductor 14 of detachable bus unit 15 is fracture.Should
Used time, the static contact 3 of the first basic bus unit 1 and the center conductor 14 of removable bus unit 15, removable bus unit 15
The center conductor 14 of static contact 3 and the second basic bus unit 7 inserts from the two ends of slider seat 4 respectively.
Preferably, slider 4 includes the column casing section 41 positioned at middle part and the left cone cylinder being located at column casing section 41 left and right sides
Section 42 and right conical cylinder section 43, along the direction F of right-to-left shown in Fig. 1, the external diameter of left conical cylinder section 42 tapers into, right conical cylinder section 43
External diameter become larger, the external diameter of column casing section 41 is all equal with the maximum outside diameter of left conical cylinder section 42 and right conical cylinder section 43, left cone cylinder
The bus of section 42 and right conical cylinder section 43 is smooth arc, and that is, both outer surfaces are smooth arc-shaped surface.So that slide touching
4 profile is succinct (for smooth cylindrical shape), the no raised or recessed groove of wedge angle, and surface electric field distribution preferably, is made with other
The structure being connected with is compared, and its profile succinctly need not install radome additional, and field intensity value is easier to control in allowed band, because
This can improve the ability of detachable bus unit withstanding voltage provided in an embodiment of the present invention so as to be particularly suitable for 800～
1100kV extra-high voltage GIL uses.Because of the radome of non-bolted joint, during operation unshielded loosen, do not produce floating potential and make
Become the trouble of shelf depreciation.
In order to strengthen long-term through-current capability and the short trouble through-current capability of removable bus unit 15, removable bus unit 15
Also include：Screw-contact 5, ringwise, the inwall at the symmetrical two ends of slider seat 4 is respectively equipped with cannelure, spiral
Spring touch finger 5 embeds in cannelure.The screw-contact that bus high current is passed through on slider seat and slider seat exists
Circulate on the static contact of the center conductor of removable bus unit 15 and the first basic bus unit 1.Preferably, screw-contact 5
Quantity be four, two ends are respectively distributed with two, i.e. the slip of the static contact of the first basic bus unit 1 and removable bus unit
It is provided with two screw-contacts 5, the center conductor of removable bus unit is touched with the slip of removable bus unit between contact base
Be provided with two screw-contacts 5 between headstock, with meet between slider seat and static contact, center conductor through-flow will
Ask.It is provided with screw-contact so that the axiality requirement to center conductor insertion is relatively low, the GIL shell of long size can be given
The manufacture provides convenient of body and bus, meanwhile, passes through the phase that spring touch finger is through-flow, uses with other removable bus units between fracture
The plum blossom fingertip of nearly size or self-reliance fingertip are compared, and because its electrical pickoff is a lot, so that it is made electrical contact with than general Mume flower contact
More reliable, thus having higher long-term through-current capability and short trouble through-current capability.
In other words, in order to realize the electrical connection between center conductor 14 and static contact 3, the present embodiment is provided with and is cylindrical in shape
The slider seat 4 of structure, multiple screw-contact 5.Static contact 3, center conductor 14 are respectively from the two ends of slider seat 4
Insertion.The inwall of slider seat 4 is provided with multiple cannelures, and the screw-contact 5 of annular embeds aforesaid multiple cannelure
In, that is, being equipped with two screw-contacts 5 between the two ends of slider seat 4 and static contact 3, center conductor 14, with full
Through-flow requirement between sufficient slider seat 4 and static contact 3, center conductor 14.
Shell is cylindrical in shape and has inflator pump 9 and removable short cylinder 13 that is to say, that shell is divided into two sections：Inflation section (is filled
Inflator) and mobile section (i.e. removable short cylinder), one end (right-hand member in Fig. 1) of inflator pump 9 is fixed with disc insulator 2, inflator pump 2
The other end (left end in Fig. 1) be connected with one end (right-hand member in Fig. 1) of removable short cylinder 13, inflator pump 9 and removable short cylinder 13
Between be scalable connect length to change shell, realize opening shell in order to disassemble the center conductor of removable bus unit
And first basic bus unit static contact between connection.In practice, inflator pump 8 is provided with air-filled pore, for installing
Charging valve and gas density relay are to realize filling the insulating gas of rated pressure to GIL cavity and carrying out gas index prison
Survey.Due between the left end of the static contact of the first basic bus unit 1 and the center conductor of removable bus unit 15, removable bus
It is all to disconnect that is to say, that spaced be between the center conductor of the static contact of unit 15 and the second basic bus unit 7
Fracture, by slider seat 4 by fracture UNICOM, forms conductive channel, that is, current through sliding contact base 4 in center conductor and
Turn between static contact.Slider seat 4, static contact 3 and center conductor 13 are all cylindrical in shape, the left end of center conductor 13 and slip
The external diameter of the right-hand member grafting of contact base 4 and center conductor 13 is less than the external diameter of slider seat 4；The left end of static contact 3 and inserts
20 right-hand member connects (i.e. electrical communication), is so beneficial to center conductor and the first basic bus unit 1 of removable bus unit 15
And second dismounting connecting between basic bus unit 7.The center conductor of removable bus unit 15 pass through a slider seat with
The static contact electrical communication of the first basic bus unit 1, the static contact of removable bus unit 15 passes through another slider and the
The center conductor of two basic bus units 7 connects, and so realizes the first basic bus unit 1, the second basic bus unit 7 and can
Tear the electrical communication between the center conductor of bus unit 15 open.The static contact of the first basic bus unit 1 be arranged on the first base
The inserts at the basin bottom of the disc insulator of this bus unit 1 connects, and the center conductor of this inserts and the first basic bus unit 1 is even
Connect.Removable short cylinder 13 is corresponding with the position of slider seat 4.
Preferably, removable short cylinder 13 in inflator pump 9 parallel sliding to change the length of shell, one end of removable short cylinder 13 with
The other end of inflator pump 9 is connected by flange 12, is provided with the sealing of O shape between flange 12 and removable short cylinder 13 and inflator pump 9
Circle is to strengthen the air-tightness of the chamber of removable short cylinder and inflator pump formation.Specifically, inflator pump 9 and removable short cylinder 13 pass through flange
Connect, the other end of inflator pump 9 is provided with first flange, one end of removable short cylinder 13 is provided with second flange, first flange
With second flange by bolt hole thereon and bolt connection, the internal diameter of inflator pump 9 be more than removable short cylinder 13 external diameter so that
After the flange connecting removable short cylinder and inflator pump is disassembled, removable short cylinder parallel cunning in inflator pump under the force of staff
Dynamic, now shell alternatively referred to as slides removable short barrel structure, and this structure is simple, easy to operate, can also adjust removable bus list
Unit 15 respectively with the first basic bus unit 1 and the second basic bus unit 7 horizontal axis assembling deviation.In order to further
Strengthen the sealing of chamber, the side of the first flange contacting with removable short cylinder 13 is provided with O-ring seals to form side
Face seals, and is provided with O-ring seals to form three in the edges and corners of the second flange contacting with inflator pump 9 and first flange respectively
Angle seals, thus realizing double sealing structure (i.e. side sealing and delta seal), first flange and second flange are passed through thereon
Bolt hole realizes sealing with bolt connection.
In other words, in order to form an easily detachable sealing space, the present embodiment also includes sealing flange 12, removable short cylinder
13, the bolt hole that removable short cylinder 13 passes through on flange is tightly connected, is sealed by O-ring seals with disc insulator 2, sealing
Between flange 12 and inflator pump 9, bolt connection, the double O sealing ring sealing structures of employing (delta seal 10 and side sealing 11), protect
The reliability of card sealing.
Disc insulator 2 in GIL equipment has two kinds of functions, and one is the non-air bound type benzvalene form for supporting center conductor 14
Disc insulator 14 structure being related in insulator, such as this structure；One be for air chamber between gas partitions air bound type benzvalene form exhausted
Edge (between air chamber using).Disc insulator 14 is connected with the housing seal of both sides respectively, contact surface is provided with the sealing of O shape
Circle.Preferably, the material of disc insulator 14 is epoxy resin material, has good insulating properties and mechanical strength.In basin
The basin of formula insulator 2 is provided with through hole along along 22, by through hole and bolt (i.e. bolt seal) make the basin of disc insulator 2 along with
Shell (bolt hole on the flange of such as shell) connects.Due to the direct through hole passing through to arrange thereon of disc insulator and bolt
With cage connection, the disc insulator 2 of the such as first basic bus unit 1 is with the right-hand member of the shell of removable bus unit 15 even
Connect, or the disc insulator 2 of removable bus unit 15 is connected with the left end of the shell of the second bus unit 7 so that utilizing no gold
The disc insulator belonging to the poured with epoxy resin of outer ring is fixed on shell, and the shell of this GIL is not the waveguide of metallic communication,
Therefore outside GIL, inside can be carried out with the measurement of shelf depreciation.
In order to improve the positioning precision of the embodiment of the present invention, removable bus unit also includes：First locating rod 150 and second
Locating rod 151；One end of first locating rod 150 of removable bus unit is connected with inserts 20, the other end of the first locating rod 150
Threaded with the second locating rod 151 of the second basic bus unit 7 to support the center conductor of the second basic bus unit 7；
One end of second locating rod 151 of removable bus unit 15 is located at the cavity that the center conductor 14 of removable bus unit 15 is formed
Interior, the first locating rod 150 spiral shell of the other end of the second locating rod 151 of removable bus unit 15 and the first basic bus unit 1
Line connects to support the center conductor 14 of removable bus unit 15 to realize center conductor 14 and the shell of removable bus unit 15
Concentric；Wherein, the second basic bus unit 7 is to be connected with removable bus unit in GIL, and it is right to be located at removable bus unit
The bus unit of side.
Specifically, the right-hand member in the inserts of removable bus unit is connected with horizontally disposed first locating rod 150, removable
It is provided with the second locating rod 151, the second locating rod 151 is in crosswise, has in the cylinder of the left end of the center conductor of bus unit
Vertical section and horizontal segment, the two ends of its vertical section respectively with the cylinder contact internal walls of the left end of center conductor to support center conductor,
Horizontal segment is flexibly connected with vertical section, and that is, horizontal segment energy opposed vertical section is slided in the horizontal direction, such as horizontal segment with vertically
Section is threaded.First locating rod of the first basic bus unit 1 is detachably connected with the inserts of the first basic bus unit 1,
For example threaded, the water of the first locating rod of the first basic bus unit 1 and the second locating rod 151 of removable bus unit 15
Flat section is detachably connected, for example threaded；The right-hand member of the first locating rod 150 of removable bus unit 15 and the second basic bus
Second locating rod of unit 7 is detachably connected, for example threaded, so that center conductor and shell keep concentric.?
Can be by the second locating rod 151 or the second of the first locating rod 150 of the first basic bus unit 1 and removable bus unit 15
First locating rod 150 of the second locating rod 151 of basic bus unit 7 and removable bus unit 15 is referred to as removable locating rod,
And be threaded connection each other, entirely through (the such as first basic bus in the inserts being screwed on disc insulator
In the inserts of the threaded disc insulator arranging in the inner of the first locating rod of unit or removable bus unit first fixed
Position bar is threadingly attached in the inserts of disc insulator of setting in it), for supporting center conductor so that it is protected with housing
Hold concentric.The material of the first locating rod 150 and the second locating rod 151 is isolation material, non-conductive.
In other words, in order to increase the present embodiment setting accuracy, the present embodiment also includes removable locating rod, it is highly preferred that
Removable locating rod includes two sections, and the wherein one section inserts with disc insulator 2 is threadeded, and another section is then inserted center conductor 14
In, play a supporting role, be then threaded connection between two sections, the main purpose of this structure design is to realize running
When support center conductor and in dismounting conductor part smoothly untie, herein for convenience, by the first basic bus list
First locating rod of the second locating rod of unit and removable bus unit is regarded removable locating rod as and is illustrated.Preferably, quiet
The gap of certain distance is left, for the disassembling operations of removable locating rod between contact 3 and center conductor 14.
The static contact 3 of removable bus unit part and the inserts bolt connection of disc insulator 2, in removable bus unit
Heart conductor 14 passes through slider seat 4 and the static contact 3 of screw-contact thereon and the first basic bus unit realizes electricity
Conducting (or disconnection) on gas, is realized the coaxial cloth of center conductor 14 and case body by the first locating rod and the second locating rod
Put, the insulator of the first basic bus unit is bolted with the removable short cylinder of removable bus unit.
When GIL circuit is longer, in order to adjust adjacent bus unit, in horizontal axis and vertical plane, assembling up and down is inclined
Difference, is that regulation ring temperature changes expand with heat and contract with cold stress and change in size, the shell of bus unit also includes bellows 8.Specifically, exist
When the shell of removable bus unit includes bellows 8, one end of bellows 8 is connected with one end of inflator pump 9, and preferably bolt connects
Connect, the other end of bellows 9 is fixed with disc insulator 2, it is exhausted that the other end of preferably bellows is bolted fixing pot type
Edge.
It should be noted that：" first " and " second " is only to be located at removable bus unit both sides for distinguishing on word
Bus unit, the static contact of the first basic bus unit is identical with the static contact structure of removable bus unit, the second basic bus
The slider seat of unit is identical with the structure of the slider seat of removable bus unit.The first of first basic bus unit is fixed
Position bar is identical with the structure of the first locating rod of removable bus unit；Second locating rod of the second basic bus unit and removable mother
The structure of the second locating rod of line unit is identical.
Contact base in the shell of the first basic bus unit, disc insulator and the first basic bus unit can be with
The structure of removable bus unit identical it is also possible to different, the shell of the second basic bus unit and static contact can be with removable mothers
The structure of line unit is identical, and it is also possible to different, the shell of the basic bus unit of such as first/second is an entirety, without separating into
Two parts；Or first basic bus unit center conductor and the first basic bus unit on the left of bus unit static contact lead to
Cross Mume flower contact (i.e. contact base of the first basic bus unit) to connect；Or second basic bus unit center conductor stationary contact
The center conductor of the bus unit on the right side of head and the second basic bus unit is by Mume flower contact (the i.e. second basic bus unit
Contact base) connect, the present embodiment is not defined to this.
The disc insulator of the disc insulator of removable bus unit and the first basic bus unit can be air bound type
Disc insulator is it is also possible to be non-air bound type disc insulator.The disc insulator of removable bus unit is preferably non-air bound type
Disc insulator is to reduce the rate of air sucked in required of gas during dismounting.
Use to removable bus unit provided in an embodiment of the present invention is described in detail below：
In normal operation, for center conductor, the static contact of removable bus unit passes through bolt and disc insulator
Inserts electrical communication, the center conductor of removable bus unit keeps coaxial by removable locating rod and bus housing (i.e. shell)
The heart, the static contact of the slider seat and basic bus unit 1 being provided by screw-contact realize electrically conducting；For
For shell, removable short cylinder left end is bolted, is carried out by O-ring seals with the disc insulator of basic bus unit 1
Sealing, removable bus unit right-hand member is tightly connected the (double containment of delta seal and side sealing by sealing flange and inflator pump
Coil structures), inflator pump is connected with bellows by bolt, and bellows passes through the disc insulator phase of bolt and removable bus unit
Even.
When breakdown maintenance or periodic maintenance need to be dismantled, first will be exhausted with the benzvalene form of the first basic bus unit 1 for removable short cylinder
Edge subsolution is opened, and removable short cylinder is shifted to and near sealing flange to realize separating of bus housing；Second step, by slider seat
Shift to one side of center conductor and to depart from static contact, slider seat end parallel with center conductor end；3rd step, due in
Leave gap between heart conductor and static contact, be easy to the disassembling section of removable locating rod, that is, passing through rotation the second locating rod can
Tear locating rod (the first locating rod of the second locating rod of interconnective removable bus unit and the first basic bus unit) open
Thread looseness simultaneously the second locating rod is moved into inside center conductor, realize removable bus unit and the first basic bus unit 1 it
Between connect dismounting.
When taking the connection between removable bus unit and the second basic bus unit apart, by the second basic bus list
The hand hole 6 of setting in unit, slider seat is shifted to side, is loosened removable locating rod and turned on by gap, thus reaching
Conductor dismounting between removable bus unit and the second basic bus unit.Now removable bus unit just can move from circuit
Open and realize the dismounting of GIL circuit.
That is, dotted line frame choosing part is removable bus unit in FIG, and the left and right sides is all basic bus list
Unit.Static contact is connected with the inserts of disc insulator by bolt and realizes electrically conducting, and center conductor is by removable locating rod
, screw-contact by slider seat concentric with housing and static contact is kept to realize electrical communication, disc insulator
It is bolted with removable short cylinder, delta seal and side seal the air-tightness that collective effect realizes cavity, removable locating rod
Two parts be threaded connection；During dismounting circuit, sealing flange is shifted to by removable short cylinder housing is opened, and conductor portion
Point, first slider seat is shifted to center conductor side and slider seat end parallel with center conductor end, then can
Tear locating rod open to unclamp and removable bus unit and the basic bus unit in left side will be realized in the one end turned on indentation center conductor
The separating of (i.e. the first basic bus unit) center conductor；In the basic bus unit in right side (i.e. the second basic bus unit) portion
Point, by hand hole by center conductor separately, equally reach the purpose disassembled.At this point it is possible to removable bus unit part is moved
Open, GIL circuit is just untied.
In sum, the present invention has advantage following outstanding：
Using spring contact seat (being provided with the slider seat of screw-contact) being electrically connected removable bus unit
Connect fracture to be connected (or disconnection), compared with the Mume flower contact of the similar sizes using with other removable bus units, because its electricity connects
Contact is a lot, and has higher long-term through-current capability and short trouble through-current capability.
Slider seat profile is succinct (as smooth cylindrical shape), the no raised or recessed groove of wedge angle, and surface field divides
Preferably, compared with the structure being connected with other, its profile succinctly need not install radome additional to cloth, and field intensity value is easier to control
System, in allowed band, therefore can improve the ability of withstanding voltage of the present invention, be suitable to make to 800～1100kV extra-high voltage GIL
With.Because of the radome of non-bolted joint, the unshielded loosening trouble producing floating potential and shelf depreciation during operation.
The axiality that spring contact seat (being provided with the slider seat of screw-contact) inserts to conducting rod requires
Relatively low, this advantage can give the GIL housing of long size and the manufacture provides convenient of bus, and meanwhile, this advantage also makes its electricity connect
Touch more more reliable than general Mume flower contact.
It is fixed on basic bus unit using the disc insulator of the no poured with epoxy resin of metal outer ring, this GIL
Shell be not metallic communication waveguide, therefore outside GIL, inside can be carried out with the measurement of shelf depreciation.
Whole shell using the removable short barrel structure that slides, disassembly process can parallel sliding, structure is simple and convenient to operate, and
And sealed it is ensured that the air-tightness of removable unit using twice rubber ring.Additionally, bellows is installed additional on shell, not only may be used
To adjust the assembling deviation in horizontal axis for the adjacent bus, can also adjust and change, in running middle ring temperature, the stress that expands with heat and contract with cold
And change in size.
As known by the technical knowledge, the present invention can be by the embodiment party of other essence without departing from its spirit or essential feature
Case is realizing.Therefore, embodiment disclosed above, for each side, is all merely illustrative, and is not only.Institute
Have within the scope of the present invention or be all included in the invention in the change being equal in the scope of the present invention.
Claims (8)
1. a kind of removable bus unit, including center conductor, disc insulator and shell, described center conductor is placed in described shell
In, and with described disc insulator on inserts electrical communication, the two ends of described disc insulator are fixed on described shell, institute
State that center conductor is cylindrical in shape it is characterised in that described removable bus unit also includes：Slider seat and static contact；
The slider seat of described removable bus unit is cylindrical in shape structure, one end of the slider seat of described removable bus unit
It is socketed on the center conductor of described removable bus unit, the other end of the slider seat of described removable bus unit is socketed on
The static contact of one basic bus unit is to realize the center conductor of described removable bus unit and described first basic bus unit
Static contact electrical communication；
The static contact of described removable bus unit is cylindrical in shape structure, one end of static contact of described removable bus unit and described basin
The inserts of formula insulator connects to realize the static contact of described removable bus unit and described inserts electrical communication, described removable mother
The other end of the static contact of line unit is plugged in the slider seat of the second basic bus unit；
Wherein, described first basic bus unit and described second basic bus unit are in rigid gas insulated power circuit
It is connected with described removable bus unit, and be respectively in the bus unit with right side on the left of described removable bus unit；Described removable
Bus unit also includes：Screw-contact；
Inwall at the symmetrical two ends of described slider seat is respectively equipped with cannelure, and described screw-contact embeds described ring
In shape groove；
Described shell is cylindrical in shape, and includes inflator pump and removable short cylinder；
One end of described inflator pump is fixed with described disc insulator, the other end of described inflator pump and the one of described removable short cylinder
End connects, and is the scalable length connecting to change described shell, thus being beneficial between described inflator pump and described removable short cylinder
The slider seat of described removable bus unit is removed from the static contact of the described first basic bus unit.
2. removable bus unit according to claim 1 is it is characterised in that described removable short cylinder is flat in described inflator pump
Line slip is to change the length of described shell；
One end of described removable short cylinder is connected by flange with the other end of described inflator pump, described flange and described removable short cylinder
It is provided with sealing ring and described inflator pump between.
3. removable bus unit according to claim 1 is it is characterised in that described shell also includes：Bellows；
One end of described bellows is connected with one end of described inflator pump, and it is exhausted that the other end of described bellows is fixed with described benzvalene form
Edge.
4. removable bus unit according to claim 1 is it is characterised in that described removable bus unit also includes：First
Locating rod and the second locating rod；
One end of first locating rod of described removable bus unit be located at described removable bus unit the cavity of static contact in and
It is connected with described inserts, the other end of described first locating rod is connected with the second locating rod screw thread of described second basic bus unit
Connect to support the center conductor of the described second basic bus unit；
One end of second locating rod of described removable bus unit is located at the sky that the center conductor of described removable bus unit is formed
In chamber, the first locating rod spiral shell of the other end of the second locating rod of described removable bus unit and described first basic bus unit
Line connect with support the center conductor of described removable bus unit to realize the center conductor of described removable bus unit with described
Shell is concentric.
5. removable bus unit according to claim 1 is it is characterised in that be provided with described shell for described outer
The air-filled pore of inflatable body in the shell of shell, described disc insulator is provided with through hole, and the air chamber of described disc insulator both sides leads to
Cross described through hole and realize gas circulation.
6. removable bus unit according to claim 1 is it is characterised in that described disc insulator is epoxy resin material
Matter.
7. a kind of rigid gas insulated power circuit, including：Removable bus unit, the first basic bus unit and second are substantially female
Line unit, the first basic bus unit and the second basic bus unit are respectively in left side and the right side of described removable bus unit,
The shell of the described removable bus unit shell with the described first basic bus unit and described second basic bus unit respectively
Connect it is characterised in that described removable bus unit is the removable bus list in claim 1-6 described in any claim
Unit；
Between the static contact of the center conductor of described removable bus unit and described first basic bus unit, described removable bus
Static contact and the center conductor of described second basic bus unit between all leave certain interval；
The slider seat that the center conductor of described removable bus unit passes through described removable bus unit is basic with described first
The static contact of bus unit realizes electrical communication or disconnection, the static contact of described removable bus and described second basic bus unit
Center conductor electrical communication or disconnection are realized by the slider seat of the described second basic bus unit；
The static contact of described first basic bus unit is fixed on the inserts of the disc insulator of the described first basic bus unit
On, the static contact of described first basic bus unit is identical with the static contact structure of described removable bus unit, described second base
The slider seat of this bus unit is identical with the slider holder structure of described removable bus unit.
8. rigid gas insulated power circuit according to claim 7 it is characterised in that
The disc insulator of described removable bus unit is connected by bolt seal with the shell of the described second basic bus unit；
The shell of described removable bus unit is connected by bolt seal with the disc insulator of the described first basic bus unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510017426.2A CN104538916B (en) | 2014-11-14 | 2015-01-14 | Detachable bus unit and rigid gas insulation electric transmission line |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410643019 | 2014-11-14 | ||
| CN2014106430198 | 2014-11-14 | ||
| CN201510017426.2A CN104538916B (en) | 2014-11-14 | 2015-01-14 | Detachable bus unit and rigid gas insulation electric transmission line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104538916A CN104538916A (en) | 2015-04-22 |
| CN104538916B true CN104538916B (en) | 2017-02-22 |
Family
ID=52854408
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520023369.4U Expired - Fee Related CN204333849U (en) | 2014-11-14 | 2015-01-14 | Removable bus unit and rigid gas insulated power circuit |
| CN201510017426.2A Active CN104538916B (en) | 2014-11-14 | 2015-01-14 | Detachable bus unit and rigid gas insulation electric transmission line |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520023369.4U Expired - Fee Related CN204333849U (en) | 2014-11-14 | 2015-01-14 | Removable bus unit and rigid gas insulated power circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN204333849U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110504652A (en) * | 2019-09-20 | 2019-11-26 | 国网河南省电力公司南阳供电公司 | A kind of combined electrical apparatus enclosed busbar metallic conductor flexible fixing device |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204333849U (en) * | 2014-11-14 | 2015-05-13 | 北京电力设备总厂有限公司 | Removable bus unit and rigid gas insulated power circuit |
| EP3142205A1 (en) * | 2015-09-11 | 2017-03-15 | ABB Schweiz AG | High dc voltage insulator, high voltage unit for direct current with high dc voltage insulator and their use |
| CN105161264A (en) * | 2015-09-21 | 2015-12-16 | 国网辽宁省电力有限公司鞍山供电公司 | Universal insulating shield with electric contact heating alerter |
| CN106848964B (en) * | 2016-11-11 | 2019-04-05 | 正泰电气股份有限公司 | A kind of 35kV all insulation enclosed busbar |
| CN106711766B (en) * | 2016-12-12 | 2019-05-21 | 江苏安靠智能输电工程科技股份有限公司 | A kind of three-phase coenosarc rigid gas insulated power route |
| CN106953241B (en) * | 2017-04-22 | 2018-11-30 | 上海华东电器集团电气有限公司 | gas-insulated transmission line |
| CN108562833A (en) * | 2018-02-01 | 2018-09-21 | 清华大学 | A kind of 550kV GIS steep waves impact test platform |
| CN108832525B (en) * | 2018-07-02 | 2024-01-19 | 河南森源电气股份有限公司 | Detachable unit of inflatable power transmission device and inflatable power transmission device |
| CN108963928B (en) * | 2018-07-20 | 2021-04-20 | 西安交通大学 | A basic unit and piping lane transmission of electricity GIL for among super/special high voltage piping lane transmission of electricity GIL |
| CN110224360B (en) * | 2019-05-13 | 2020-10-02 | 平高集团有限公司 | Pipeline bus and detachable bus unit of pipeline bus |
| CN110212478B (en) * | 2019-05-13 | 2020-10-30 | 平高集团有限公司 | Pipeline bus and bus unit of pipeline bus |
| CN112086895B (en) * | 2019-06-13 | 2022-07-29 | 河南平芝高压开关有限公司 | Circuit breaker static end connecting assembly, double-bus circuit breaker and GIS |
| CN112152174A (en) * | 2019-06-29 | 2020-12-29 | 平高集团有限公司 | Bus unit and pipeline bus |
| CN114447871B (en) * | 2020-10-30 | 2024-07-02 | 河南平芝高压开关有限公司 | Butt joint method of newly-built GIS bus and existing GIS bus and GIS bus system |
| CN113300319B (en) * | 2021-05-20 | 2023-03-21 | 江苏恒高电气制造有限公司 | A transmission of electricity structure for piping lane GIL |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1198661A (en) * | 1997-09-17 | 1999-04-09 | Mitsubishi Electric Corp | Gas-insulated power-transmission line |
| JP2000115969A (en) * | 1998-10-05 | 2000-04-21 | Mitsubishi Electric Corp | Method for assembling gas-insulated transmission line and transportation unit thereof, and structure for connecting conductors with each other |
| JP2000316225A (en) * | 1999-04-28 | 2000-11-14 | Mitsubishi Electric Corp | Insulating spacer |
| CN201196675Y (en) * | 2008-05-27 | 2009-02-18 | 中国电力科学研究院 | Experiment research apparatus used for DC gas insulation metal closed electric power line |
| DE102008030997A1 (en) * | 2008-06-30 | 2009-12-31 | Siemens Aktiengesellschaft | Pipe assembly with a fluid-tight encapsulation tube |
| KR20100091677A (en) * | 2009-02-11 | 2010-08-19 | 엘에스전선 주식회사 | Gas insulated transmission line improved the performance of electric contact at connection parts of the conductors |
| CN201562024U (en) * | 2009-12-07 | 2010-08-25 | 中国电力科学研究院 | Test device for ultra-high voltage AC/DC gas-insulated metal-enclosed power transmission line |
| CN203250859U (en) * | 2013-05-20 | 2013-10-23 | 中国能建集团装备有限公司南京技术中心 | GIL transition section conductor connecting structure |
| CN204333849U (en) * | 2014-11-14 | 2015-05-13 | 北京电力设备总厂有限公司 | Removable bus unit and rigid gas insulated power circuit |
-
2015
- 2015-01-14 CN CN201520023369.4U patent/CN204333849U/en not_active Expired - Fee Related
- 2015-01-14 CN CN201510017426.2A patent/CN104538916B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110504652A (en) * | 2019-09-20 | 2019-11-26 | 国网河南省电力公司南阳供电公司 | A kind of combined electrical apparatus enclosed busbar metallic conductor flexible fixing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN204333849U (en) | 2015-05-13 |
| CN104538916A (en) | 2015-04-22 |
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