CN106532280A - Connection method for machine voltage rectangular bus of power generator in hydroelectric station - Google Patents
Connection method for machine voltage rectangular bus of power generator in hydroelectric station Download PDFInfo
- Publication number
- CN106532280A CN106532280A CN201611183893.3A CN201611183893A CN106532280A CN 106532280 A CN106532280 A CN 106532280A CN 201611183893 A CN201611183893 A CN 201611183893A CN 106532280 A CN106532280 A CN 106532280A
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- Prior art keywords
- slot
- table top
- gear shaping
- bar
- rectangular copper
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2201/00—Connectors or connections adapted for particular applications
- H01R2201/10—Connectors or connections adapted for particular applications for dynamoelectric machines
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- Manufacture Of Motors, Generators (AREA)
Abstract
The invention discloses a connection method for a machine voltage rectangular bus of a power generator in a hydroelectric station. The connection method comprises the steps of respectively processing a connection end of a rectangular copper bus needed to be connected to form a shape with isolated gears and grooves; inserting a first upper insertion gear into a second slot; inserting a second lower insertion gear into a first slot; enabling a first tabletop and a lower surface of a second upper insertion gear to be in contact, and enabling a second tabletop and an upper surface of a first lower insertion gear to be in contact; and making a bolt to penetrate through a first bolt hole and a second bolt hole to be fixed and connected. The connection method has the advantages that the running safety and reliability of the hydroelectric station is improved, heat generation quantity is low, temperature rise is low, and a conductor at a connection part is good in thermal stability; the phase distance of the rectangular copper bus at a conductor connection part does not change, and the conductor at the connection part is good in dynamic stability; a skin effect coefficient of the conductor at a rectangular copper bus connection part is reduced, a proximity effect coefficient is also reduced, and the conductivity capability of the conductor connection part is high; and the electric energy loss of the rectangular copper bus connection part is low.
Description
Technical field
The present invention relates to hydropower generator machine pressure rectangular bus bar, presses rectangular bus bar more particularly, to hydropower generator machine
Method of attachment.
Background technology
Medium hydropower station electromotor machine presses bus lead-out wire generally to adopt rectangular bus bar, bus length to main transformer loop
Up to more than ten meters to tens meters, the more hydropower generator machine of number of units of installing presses bus length up to hundreds of meters.Power station
The safe and reliable operation of electromotor machine pressure bus directly influences the reliability service in whole power station, and the installation of rectangular bus bar is generally adopted
With the mode such as open type installation and common box bus installation, current－carrying conductor is typically using copper material.It is with China's economic development, newly-built
Or adopting common box bus device the medium hydropower station electromotor machine pressure bus of reconstruction more, common box bus device characteristic is electrical energy transportation
Capacity is big, good insulation preformance, security reliability are high, rigidly good, intensity is big, bearing capacity is strong etc. for container body of outer cover.Existing market and work
Larger its material of common box bus device is measured used in Cheng Jianshe using copper, insulation using porcelain or silicone rubber post insulator
Son, container body of outer cover use common angle steel using the weak magnetic cold-rolled steel sheet that thickness is 1.2～1.5mm, connector and reinforcement, often save
The supply of material 2～3m of length, for medium hydropower station electromotor machine presses bus length up to 100 meters of common box bus device, has about 30
Individual bus connecting node needs building-site to connect.No matter the installation of hydropower generator machine pressure rectangular bus bar is pacified using open type
Dress or common box bus mounting means, current rectangular bus bar connection connect mode using overlap joint spiral shell as shown in Figure 7 and are attached,
There is problems with：1st, rectangular copper bus-bar carry out overlap spiral shell connect mode, carry out electrically merely with a side of rectangular copper bus-bar
Connection, junction conductor contact surface not fit like a glove contact, and contact resistance is big, and caloric value increase, temperature rise are increased, and junction is led
Body heat stability is reduced, and there is potential safety hazard.2nd, rectangular copper bus-bar carry out overlap spiral shell connect mode, the thickness of junction conductor is
The thickness of double rectangular copper bus-bar, copper busbar phase spacing accordingly reduce, and junction conductor dynamic stability is reduced.3rd, rectangle copper
Bus carries out overlap joint spiral shell and connects mode, and in rectangular bus bar conductor, alternating current distribution density is uneven, and the skin effect coefficient of conductor increases
Greatly, kindred effect coefficient also increases, and is deteriorated in the conductive capability of conductor connection.4th, rectangular copper bus-bar carries out overlapping spiral shell company side
There is energy loss in formula, rectangular bus bar conductor connection.
The content of the invention
Present invention aim at providing a kind of hydropower generator machine presses rectangular bus bar method of attachment.
For achieving the above object, the present invention takes following technical proposals：
Hydropower generator machine of the present invention presses rectangular bus bar method of attachment, carries out as steps described below：
The first step, the rectangular copper bus-bar connection end for connecting in two needs respectively process to form tooth, groove interval shape by Digit Control Machine Tool
Shape；I.e.：
The first table top is processed in the connection end upper face of the first rectangular copper bus-bar, in the bottom stage body positioned at first table top
On process the first slot, first slot is longitudinally parallel in First from the connection end of first rectangular copper bus-bar
Face opens up, the longitudinal length of the longitudinal length of the first slot less than the first table top, constitutes the between the first slot and the first table top
Gear shaping on one, constitutes first time gear shaping between the first slot and the first rectangular copper bus-bar lower face；Then perpendicular to the first table top
The first bolt hole is processed, first bolt hole is opened up through gear shaping on described first and first time gear shaping；
The second table top is processed in the connection end lower face of the second rectangular copper bus-bar, in the top stage body positioned at second table top
On process the second slot, second slot is longitudinally parallel in second from the connection end of second rectangular copper bus-bar
Face opens up, the longitudinal length of the longitudinal length of the second slot less than the second table top, constitutes the between the second slot and the second table top
Two times gear shapings, constitute gear shaping on second between the second slot and the second rectangular copper bus-bar upper face；Then perpendicular to the second table top
The second bolt hole is processed, second bolt hole is opened up through gear shaping on described second and second time gear shaping；
On described first, the groove width of the thickness and longitudinal length of gear shaping and second slot and longitudinal length match；Described
The groove width of the thickness and longitudinal length of two times gear shapings and first slot and longitudinal length match；
Second step, gear shaping on described first is inserted in second slot；Now second time gear shaping inserts first simultaneously
In slot, gear shaping following table plane-plane contact on first table top and described second, second table top and first time gear shaping
Upper table plane-plane contact；Then bolt is penetrated into first bolt hole and the second bolt hole is fixedly connected.
The invention has the advantages that improve the security reliability of hydroelectric station operation, its advantage is mainly reflected in lower section
Face：
1st, the connection end between the rectangular copper bus-bar being connected with each other, is electrically connected by the three of rectangular copper bus-bar sides
Connect, conductor connection contact resistance is little, and caloric value is low, and temperature rise is low, junction conductor heat stability is good.
2nd, between the rectangular copper bus-bar being connected with each other, the thickness of junction conductor is equal with the thickness of rectangular copper bus-bar, leads
The phase spacing of body junction rectangular copper bus-bar is not changed in, and junction conductor dynamic stability is good.
3rd, the conductor skin effect coefficient of rectangular copper bus-bar junction reduces, and kindred effect coefficient also reduces, conductor connection
The electric conductivity ability at place is strong.
4th, the electric energy loss of rectangular copper bus-bar junction is low.
Description of the drawings
Fig. 1 is the structural representation of first rectangular copper bus-bar processed according to the inventive method.
Fig. 2 is the structural representation of second rectangular copper bus-bar processed according to the inventive method.
Fig. 3 is the first rectangular copper bus-bar of the present invention and the structural representation after the connection of the second rectangular copper bus-bar.
Fig. 4 is the three-dimensional reference view of Fig. 1.
Fig. 5 is the three-dimensional reference view of Fig. 2.
Fig. 6 is the three-dimensional reference view of Fig. 3.
Fig. 7 is that existing hydropower generator machine pressure rectangular bus bar takes overlap joint spiral shell to connect the structural representation of mode.
Specific embodiment
Below in conjunction with the accompanying drawings embodiments of the invention are elaborated, the present embodiment is with technical solution of the present invention as front
Put and implemented, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to down
State embodiment.
As shown in figures 1 to 6, hydropower generator machine of the present invention presses rectangular bus bar method of attachment, as steps described below
Carry out：
The first step, the rectangular copper bus-bar connection ends for connecting in two sections of needs respectively process to form tooth, groove interval by Digit Control Machine Tool
Shape；I.e.：
The first table top 2 is processed in the connection end upper face of the first rectangular copper bus-bar 1, in the bottom stage body positioned at First face 2
On process the first slot 3, the first slot 3 is opened from the connection end of the first rectangular copper bus-bar 1 is longitudinally parallel in the first table top 2
If the longitudinal length of the longitudinal length of the first slot 3 less than the first table top 2 constitutes the between first slot 3 and the first table top 2
Gear shaping 4 on one, constitute first time gear shaping 5 between 1 lower face of the first slot 3 and the first rectangular copper bus-bar；Then perpendicular to first
Table top 2 processes four the first bolts hole 6, and four the first bolts hole 6 are opened up through gear shaping 4 on first and first time gear shaping 5；
The second table top 8 is processed in the connection end lower face of the second rectangular copper bus-bar 7, in the top stage body positioned at the second table top 8
On process the second slot 9, the second slot 9 is opened from the connection end of the second rectangular copper bus-bar 7 is longitudinally parallel in the second table top 8
If the longitudinal length of the longitudinal length of the second slot 9 less than the second table top 8 constitutes the between second slot 9 and the second table top 8
Two times gear shapings 10, constitute gear shaping 11 on second between 7 upper face of the second slot 9 and the second rectangular copper bus-bar；Then perpendicular to
Two table tops 8 process the second bolt hole 12, and the second bolt hole 12 is opened up through gear shaping 11 on second and second time gear shaping 10；
On first, the groove width of the thickness and longitudinal length of gear shaping 4 and the second slot 9 and longitudinal length match；Second time gear shaping 10
Thickness and longitudinal length and the first slot 3 groove width and longitudinal length match；
Second step, gear shaping on first 4 is inserted in the second slot 9；Now second time gear shaping 10 is inserted in the first slot 3 simultaneously,
11 following table plane-plane contact of gear shaping on first table top 2 and second, the second table top 8 and first time 5 upper table plane-plane contact of gear shaping；Then will
Four bolts 13 penetrate the first bolt hole 6 and are fixedly connected with the second bolt hole 12.
During actual manufacture, longitudinal length of the longitudinal length of gear shaping 4 less than first time gear shaping 5 on first；Second time gear shaping
10 longitudinal length is less than the longitudinal length of gear shaping 11 on second, so, the connecting portion of two sections of rectangular copper bus-bars after connection
Conduct electricity very well, mechanical strength it is big.
In describing the invention, it should be noted that term " on ", D score, " vertical ", " level ", " interior ", " outward "
Deng instruction orientation or position relationship be based on orientation shown in the drawings or position relationship, be for only for ease of description the present invention and
Simplify description, rather than indicate or imply that the device or element of indication must be with specific orientation, with specific azimuth configuration
And operation, therefore it is not considered as limiting the invention.
Claims (1)
1. a kind of hydropower generator machine presses rectangular bus bar method of attachment, it is characterised in that：Carry out as steps described below：
The first step, the rectangular copper bus-bar connection end for connecting in two needs respectively process to form tooth, groove interval shape by Digit Control Machine Tool
Shape；I.e.：
The first table top is processed in the connection end upper face of the first rectangular copper bus-bar, in the bottom stage body positioned at first table top
On process the first slot, first slot is longitudinally parallel in First from the connection end of first rectangular copper bus-bar
Face opens up, the longitudinal length of the longitudinal length of the first slot less than the first table top, constitutes the between the first slot and the first table top
Gear shaping on one, constitutes first time gear shaping between the first slot and the first rectangular copper bus-bar lower face；Then perpendicular to the first table top
The first bolt hole is processed, first bolt hole is opened up through gear shaping on described first and first time gear shaping；
The second table top is processed in the connection end lower face of the second rectangular copper bus-bar, in the top stage body positioned at second table top
On process the second slot, second slot is longitudinally parallel in second from the connection end of second rectangular copper bus-bar
Face opens up, the longitudinal length of the longitudinal length of the second slot less than the second table top, constitutes the between the second slot and the second table top
Two times gear shapings, constitute gear shaping on second between the second slot and the second rectangular copper bus-bar upper face；Then perpendicular to the second table top
The second bolt hole is processed, second bolt hole is opened up through gear shaping on described second and second time gear shaping；
On described first, the groove width of the thickness and longitudinal length of gear shaping and second slot and longitudinal length match；Described
The groove width of the thickness and longitudinal length of two times gear shapings and first slot and longitudinal length match；
Second step, gear shaping on described first is inserted in second slot；Now second time gear shaping inserts first simultaneously
In slot, gear shaping following table plane-plane contact on first table top and described second, second table top and first time gear shaping
Upper table plane-plane contact；Then bolt is penetrated into first bolt hole and the second bolt hole is fixedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611183893.3A CN106532280B (en) | 2016-12-20 | 2016-12-20 | Hydropower generator machine presses rectangular bus bar connection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611183893.3A CN106532280B (en) | 2016-12-20 | 2016-12-20 | Hydropower generator machine presses rectangular bus bar connection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106532280A true CN106532280A (en) | 2017-03-22 |
| CN106532280B CN106532280B (en) | 2019-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611183893.3A Active CN106532280B (en) | 2016-12-20 | 2016-12-20 | Hydropower generator machine presses rectangular bus bar connection method |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107658774A (en) * | 2017-11-15 | 2018-02-02 | 河南省水利勘测设计研究有限公司 | Large pumped storage power plant generator motor machine presses equipment arrangement |
| CN114400600A (en) * | 2021-12-16 | 2022-04-26 | 河南平高电气股份有限公司 | Three-phase common-box bus conductor supporting device |
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| CN201570829U (en) * | 2009-08-05 | 2010-09-01 | 河南森源电气股份有限公司 | Bus mounting structure of high voltage switch cabinet |
| CN202503120U (en) * | 2012-03-20 | 2012-10-24 | 上海产联电气科技有限公司 | Busbar connector |
| CN202797336U (en) * | 2012-02-12 | 2013-03-13 | 杨永盛 | Wire end |
| CN202957364U (en) * | 2012-11-08 | 2013-05-29 | 河南省电力公司郑州供电公司 | Novel wire clamp for power transmission and transformation line equipment |
| CN202996544U (en) * | 2012-12-08 | 2013-06-12 | 三变科技股份有限公司 | Dry-type transformer |
| CN103700957A (en) * | 2013-11-21 | 2014-04-02 | 洛阳龙羽电气设备有限公司 | Bus butting method |
| CN104538754A (en) * | 2014-12-03 | 2015-04-22 | 常州市拓源电缆成套有限公司 | Plugging type joint for capacitance type composite insulated bus with voltage of 72500 to 550000 volts |
| CN205583166U (en) * | 2016-04-11 | 2016-09-14 | 湖北南邦创电科技有限公司 | Improve ground net and prevent corrosive effects's device |
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2016
- 2016-12-20 CN CN201611183893.3A patent/CN106532280B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201570829U (en) * | 2009-08-05 | 2010-09-01 | 河南森源电气股份有限公司 | Bus mounting structure of high voltage switch cabinet |
| CN202797336U (en) * | 2012-02-12 | 2013-03-13 | 杨永盛 | Wire end |
| CN202503120U (en) * | 2012-03-20 | 2012-10-24 | 上海产联电气科技有限公司 | Busbar connector |
| CN202957364U (en) * | 2012-11-08 | 2013-05-29 | 河南省电力公司郑州供电公司 | Novel wire clamp for power transmission and transformation line equipment |
| CN202996544U (en) * | 2012-12-08 | 2013-06-12 | 三变科技股份有限公司 | Dry-type transformer |
| CN103700957A (en) * | 2013-11-21 | 2014-04-02 | 洛阳龙羽电气设备有限公司 | Bus butting method |
| CN104538754A (en) * | 2014-12-03 | 2015-04-22 | 常州市拓源电缆成套有限公司 | Plugging type joint for capacitance type composite insulated bus with voltage of 72500 to 550000 volts |
| CN205583166U (en) * | 2016-04-11 | 2016-09-14 | 湖北南邦创电科技有限公司 | Improve ground net and prevent corrosive effects's device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107658774A (en) * | 2017-11-15 | 2018-02-02 | 河南省水利勘测设计研究有限公司 | Large pumped storage power plant generator motor machine presses equipment arrangement |
| CN107658774B (en) * | 2017-11-15 | 2024-02-09 | 河南省水利勘测设计研究有限公司 | Generator motor pressing equipment arrangement structure of large pumped storage power station |
| CN114400600A (en) * | 2021-12-16 | 2022-04-26 | 河南平高电气股份有限公司 | Three-phase common-box bus conductor supporting device |
| CN114400600B (en) * | 2021-12-16 | 2023-11-17 | 河南平高电气股份有限公司 | Three-phase common-box bus conductor supporting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106532280B (en) | 2019-10-01 |
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