CN106329325A - High-voltage switch cabinet conductor assembly for installing zero-sequence current transformers - Google Patents
High-voltage switch cabinet conductor assembly for installing zero-sequence current transformers Download PDFInfo
- Publication number
- CN106329325A CN106329325A CN201610878132.3A CN201610878132A CN106329325A CN 106329325 A CN106329325 A CN 106329325A CN 201610878132 A CN201610878132 A CN 201610878132A CN 106329325 A CN106329325 A CN 106329325A
- Authority
- CN
- China
- Prior art keywords
- sequence current
- epoxy resin
- cylinder
- copper bar
- switch cabinet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/015—Boards, panels, desks; Parts thereof or accessories therefor
- H02B1/04—Mounting thereon of switches or of other devices in general, the switch or device having, or being without, casing
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/24—Circuit arrangements for boards or switchyards
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G5/00—Installations of bus-bars
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulators (AREA)
Abstract
The invention discloses a high-voltage switch cabinet conductor assembly for installing zero-sequence current transformers. The assembly comprises a conductive rod assembly and an epoxy resin shell; the conductive rod assembly is fixedly embedded in the epoxy resin shell formed by pouring and comprises a conductive rod and a connecting copper bar, and the inner end of the connecting copper bar is perpendicularly welded to one end of the conductive rod. The epoxy resin shell is in a stepped shaft shape, a tubular shaft of which the diameter is smaller than that of a large-end shaft body stretches out from the other end of the large-end shaft body in the stepped shaft shape, the peripheral surface of the tubular shaft is coated with a metal layer, and multiple zero-sequence current transformers are arranged on the tubular shaft in a sleeving mode side by side. The conductive rod is of a stepped shaft structure comprising a first cylinder and a second cylinder. According to the high-voltage switch cabinet conductor assembly for installing the zero-sequence current transformers, a busbar is convenient to install; the busbar is small in occupied space and does not need to be bent multiple times, the manufacturing cost and the construction difficulty are greatly reduced, and field installation is convenient; the zero-sequence current transformers arranged on the coating layer of the tubular shaft in a sleeving mode all generate exciting currents, signals of circuit disconnecting, alarming and the like are sent out through parts arranged on a secondary circuit, and then safety of personnel and equipment is guaranteed.
Description
Technical field
The present invention relates to a kind of high-tension switch cabinet, in especially one is arranged on high-tension switch cabinet, for connecting busbar
Conductor assembly, belongs to equipment for power transmission and distribution technical field.
Background technology
Zero sequence current mutual inductor is arranged on the three-phase line of high-tension switch cabinet, occurs to touch in the Circuits System of power transmission and distribution
When electricity or leak current fault, the three-phase load unbalance of circuit, the secondary side of each zero sequence current mutual inductor exports zero sequence electricity respectively
Stream gives corresponding measurement or protection device so that the parts on secondary line send the cut-out signal such as circuit and warning, operator
Member's operation in time, to guarantee the safety of the person and equipment.
Existing zero sequence current mutual inductor is fixed on the sidewall of high-tension switch cabinet, then allows busbar in zero sequence current mutual inductor
Passing in hole, busbar enters in cabinet from high-tension switch cabinet, in order to much install part in dodging high-tension switch cabinet, need into
Row repeatedly bends, and considerably increases the material consumption of busbar, increases manufacturing cost.Busbar takes up room relatively big, also exists and easily puts
The potential safety hazard of electricity；And need to accurately calculate the cutting length of copper bar and bending position and angle, otherwise in-site installation is very
Difficulty, increases difficulty of construction.
Summary of the invention
It is an object of the invention to provide a kind of not only reduced difficulty of construction but also save busbar consumptive material for installing zero-sequence current
The high-tension switch cabinet conductor assembly of transformer.
The present invention is achieved by the following technical programs:
A kind of high-tension switch cabinet conductor assembly for installing zero sequence current mutual inductor, including conducting rod combination and epoxy resin shell
Body, described conducting rod combination setting-in is fixed in the epoxy resin housing of castable, including conducting rod and connection copper bar, described
Connecting the inner of copper bar with conducting rod one end vertical welding even, the lateral outer side of epoxy resin housing is stretched out in the outer end connecting copper bar；
Described epoxy resin housing is multidiameter shape, and it is empty that big end axis body one end of described multidiameter shape is provided with first axially inwardly extended
Chamber, the big end axis body other end extends diameter less than the big tubular axle holding axis body, the outer peripheral face sprayed metal layer of described tubular axle,
Several zero sequence current mutual inductors are enclosed within tubular axle side by side；Described conducting rod is multidiameter structure, and described multidiameter includes first
Cylinder and diameter are less than the second cylinder of the first cylinder, and described first cylinder is inner and is gradually contracted by diameter in second cylinder the inner
Little frustum section transition connects, and a first cylinder outer end part puts in first cavity of epoxy resin housing big end axis body one end
In, the second cylinder termination protruded tube oblique crank Z port.
The purpose of the present invention can also be realized further by techniques below measure.
Further, the portion perimeter face of the first cylinder termination is silver-plated；The length of the second cylinder outer end protruded tube oblique crank Z port
Degree A=4～6mm.
Further, the inner connecting copper bar is the circular arc of indent, the radius of curvature of described circular arc and conducting rod
First cylindrical radius coupling, the inner connecting copper bar is connected by silver soldering vertical fixing inner with the first cylinder of conducting rod.
Further, the epoxy resin housing central section position that setting-in connects copper bar laterally extends transverse end, described
Being provided with the second cavity leading to transverse end end face in transverse end, the end face of transverse end is stretched out in the outer end connecting copper bar, connects copper bar
Middle part be positioned in the second cavity.
Further, the big end axis body other end of described epoxy resin housing is provided with the first external shed, tubular axle one end
Being provided with the second external shed, the inner peripheral surface of the first cavity outer end is provided with interior full skirt.Described epoxy resin housing hold greatly axis body
Mounting flange is vertically extended on the end face of one end.
The conducting rod combination of the present invention uses the inner connecting copper bar and conducting rod one end vertical welding structure even, and will lead
Electric pole combination setting-in is fixed in the epoxy resin housing of castable, connects copper bar outer end and stretches out epoxy resin housing copper bar
Transverse end, the second cavity in transverse end can be used to regulate the installation length of busbar, facilitates busbar to install.The structure of the present invention
Make busbar take up room little and need not repeatedly bend, greatly reduce manufacturing cost and difficulty of construction, it is simple to in-site installation；
The busbar that vent enters on rear side of the sidewall of high-tension switch cabinet can directly connect connection copper bar, reduces connection copper bar with female
Row connect contact resistance.Epoxy resin housing meets air insulation requirement, in the periphery of the tubular axle of epoxy resin housing
The metal level of face spraying defines screen layer, can be as primary circuit.When Circuits System occurs electric shock or leak current fault, set
Several ZCTs on tubular axle sprayed coating all produce exciting current, the generation electricity thus ZCT is started working
Stream, sends the cut-out signal such as circuit and warning by the parts on secondary line, judges for operator, to guarantee the person
Safety with equipment.
Advantages of the present invention and feature, by for illustration and explanation by the non-limitative illustration of preferred embodiment below,
These embodiments, are only used as example referring to the drawings and are given.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the upward view after Fig. 1 unloads zero sequence current mutual inductor；
Fig. 3 is the left view of Fig. 1；
Fig. 4 is the B direction view of conducting rod.
Detailed description of the invention
The invention will be further described with the embodiment of high-tension switch cabinet conductor assembly below in conjunction with the accompanying drawings.
As shown in Figure 1 to 4, high-tension switch cabinet conductor assembly rated voltage 12kV of the present embodiment, rated current
2000A, it includes that conducting rod combination 1 and epoxy resin housing 2, conducting rod combination 1 setting-in are fixed on the asphalt mixtures modified by epoxy resin of castable
In fat housing 2, including conducting rod 11 and connection copper bar 12, the inner of described connection copper bar 12 and conducting rod 11 left end vertical welding
Even, the lateral outer side of epoxy resin housing 2 is stretched out in the outer end connecting copper bar 12.Epoxy resin housing 2 in multidiameter shape, described rank
Big end axis body 21 left end of ladder axle shape is provided with the first cavity 211 axially inwardly extended, and the installation that can be used to regulate busbar is long
Degree, it is simple to busbar is installed.Big end axis body 21 right-hand member extends diameter less than the big tubular axle 22 holding axis body 21, described tubular axle 22
Outer peripheral face sprayed metal layer 27, the present embodiment spraying zinc, several zero sequence current mutual inductors 3 are enclosed within tubular axle 22 side by side, this
Embodiment uses 2 zero sequence current mutual inductors 3 to be enclosed within side by side on tubular axle 22.
Conducting rod 11 is multidiameter structure, and described multidiameter 11 includes that the first cylinder 111 and diameter are less than the first cylinder
Second cylinder 112, the first cylinder 111 is inner and the second cylinder 112 is inner by frustum section 113 transition of reduced diameter even
Connecing, a first cylinder 111 left end part puts in the first cavity 211 in big end axis body 21 left end of epoxy resin housing 2, disconnected
Device one end, road is connected with the left end termination of the first cylinder 111 in can advancing the first cavity 211.Second cylinder 112 right-hand member termination is stretched
Going out tubular axle 22 port, its length A=4 stretched out～6mm, the present embodiment is 5mm, such structure can ensure that busbar termination and
The end contact of the second cylinder 112 of conducting rod 11 is good, reduces the contact resistance that conducting rod 11 is connected with busbar.First circle
The portion perimeter face of post 111 left end termination is silver-plated.
Epoxy resin housing 2 medium position that setting-in connects copper bar 12 laterally extends transverse end 23, described laterally
Being provided with the second cavity 231 leading to transverse end 23 end face in end 23, the end face of transverse end 23 is stretched out in the outer end connecting copper bar 12, even
The middle part connecing copper bar 12 is positioned in the second cavity 231.Second cavity 231 is used for regulating the installation length of busbar, facilitates busbar to pacify
Dress.
The inner connecting copper bar 12 is the circular arc of indent, the radius of curvature of described circular arc and the first circle of conducting rod 11
Post 111 radius mates, and connects the inner of copper bar 12 by silver soldering vertical fix company inner with the first cylinder 111 of conducting rod 11
Connect.
Big end axis body 21 right-hand member of epoxy resin housing 2 is provided with the first external shed 24, and tubular axle right-hand member is provided with second
External shed 25, the inner peripheral surface of the first cavity 211 left end is provided with interior full skirt 26, external shed and and interior full skirt all can shorten creepage away from
From.Mounting flange 28 is vertically extended, it is simple to by epoxy resin shell on the end face of big end axis body 21 left end of epoxy resin housing 2
Body 2 is fixed on the sidewall of high-voltage board cabinet.
In addition to the implementation, the present invention can also have other embodiments, all employing equivalents or equivalent transformation shape
The technical scheme become, all falls within the protection domain of application claims.
Claims (7)
1. for installing a high-tension switch cabinet conductor assembly for zero sequence current mutual inductor, including conducting rod combination and epoxy resin
Housing, described conducting rod combination setting-in is fixed in the epoxy resin housing of castable, it is characterised in that: described conducting rod group
Conjunction includes conducting rod and connects copper bar, and the inner of described connection copper bar with conducting rod one end vertical welding even, connects the outer end of copper bar
Stretch out the lateral outer side of epoxy resin housing；Described epoxy resin housing is multidiameter shape, described multidiameter shape hold greatly axis body
One end is provided with the first cavity axially inwardly extended, and the big end axis body other end extends the diameter tubular axle less than big end axis body,
The outer peripheral face sprayed metal layer of described tubular axle, several zero sequence current mutual inductors are enclosed within tubular axle side by side；Described conducting rod is
Multidiameter structure, described multidiameter includes the first cylinder and diameter the second cylinder less than the first cylinder, in described first cylinder
End and second cylinder the inner are connected by the frustum section transition of reduced diameter, and a first cylinder outer end part puts in asphalt mixtures modified by epoxy resin
In first cavity of fat housing big end axis body one end, the second cylinder termination protruded tube oblique crank Z port.
2. the high-tension switch cabinet conductor assembly for installing zero sequence current mutual inductor as claimed in claim 1, it is characterised in that:
The portion perimeter face of the first cylinder termination is silver-plated.
3. the high-tension switch cabinet conductor assembly for installing zero sequence current mutual inductor as claimed in claim 1, it is characterised in that:
Length A=4 of the second cylinder outer end protruded tube oblique crank Z port～6mm.
4. the high-tension switch cabinet conductor assembly for installing zero sequence current mutual inductor as claimed in claim 1, it is characterised in that:
The inner connecting copper bar is the circular arc of indent, the radius of curvature of described circular arc and the first cylindrical radius coupling of conducting rod,
The inner connecting copper bar is connected by silver soldering vertical fixing inner with the first cylinder of conducting rod.
5. the high-tension switch cabinet conductor assembly for installing zero sequence current mutual inductor as claimed in claim 1, it is characterised in that:
The epoxy resin housing central section position that setting-in connects copper bar laterally extends transverse end, is provided with in described transverse end and leads to horizontal stroke
To the second cavity of end end face, the end face of transverse end is stretched out in the outer end connecting copper bar, and the middle part connecting copper bar is positioned at the second cavity
In.
6. the high-tension switch cabinet conductor assembly for installing zero sequence current mutual inductor as claimed in claim 1, it is characterised in that:
The big end axis body other end of described epoxy resin housing is provided with the first external shed, and tubular axle one end is provided with the second external shed,
The inner peripheral surface of the first cavity outer end is provided with interior full skirt.
7. the high-tension switch cabinet conductor assembly for installing zero sequence current mutual inductor as claimed in claim 1, it is characterised in that:
Mounting flange is vertically extended on the end face of big end axis body one end of described epoxy resin housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610878132.3A CN106329325A (en) | 2016-10-09 | 2016-10-09 | High-voltage switch cabinet conductor assembly for installing zero-sequence current transformers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610878132.3A CN106329325A (en) | 2016-10-09 | 2016-10-09 | High-voltage switch cabinet conductor assembly for installing zero-sequence current transformers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106329325A true CN106329325A (en) | 2017-01-11 |
Family
ID=57821260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610878132.3A Pending CN106329325A (en) | 2016-10-09 | 2016-10-09 | High-voltage switch cabinet conductor assembly for installing zero-sequence current transformers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106329325A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107643435A (en) * | 2017-10-31 | 2018-01-30 | 现代重工(中国)电气有限公司 | Differential protection cable socket and the Current Mutual Inductance circuit protection device being made from it |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130335887A1 (en) * | 2012-06-13 | 2013-12-19 | Hitachi, Ltd. | Resistor, method of assembling the same, and switchgear |
| CN203895829U (en) * | 2014-06-06 | 2014-10-22 | 亚洲电力设备(深圳)股份有限公司 | High-voltage conduit for gas-insulated high-voltage switchgear |
| CN204732815U (en) * | 2015-06-30 | 2015-10-28 | 国家电网公司 | External screw thread many shunt wall bushing |
| CN206364376U (en) * | 2016-10-09 | 2017-07-28 | 镇江市丹高电器有限公司 | High-tension switch cabinet conductor assembly for installing zero sequence current mutual inductor |
-
2016
- 2016-10-09 CN CN201610878132.3A patent/CN106329325A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130335887A1 (en) * | 2012-06-13 | 2013-12-19 | Hitachi, Ltd. | Resistor, method of assembling the same, and switchgear |
| CN203895829U (en) * | 2014-06-06 | 2014-10-22 | 亚洲电力设备(深圳)股份有限公司 | High-voltage conduit for gas-insulated high-voltage switchgear |
| CN204732815U (en) * | 2015-06-30 | 2015-10-28 | 国家电网公司 | External screw thread many shunt wall bushing |
| CN206364376U (en) * | 2016-10-09 | 2017-07-28 | 镇江市丹高电器有限公司 | High-tension switch cabinet conductor assembly for installing zero sequence current mutual inductor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107643435A (en) * | 2017-10-31 | 2018-01-30 | 现代重工(中国)电气有限公司 | Differential protection cable socket and the Current Mutual Inductance circuit protection device being made from it |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170111 |
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| RJ01 | Rejection of invention patent application after publication |