CN112071589A - Method for enlarging conductive contact surface of reactor joint - Google Patents
Method for enlarging conductive contact surface of reactor joint Download PDFInfo
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- CN112071589A CN112071589A CN202010825191.0A CN202010825191A CN112071589A CN 112071589 A CN112071589 A CN 112071589A CN 202010825191 A CN202010825191 A CN 202010825191A CN 112071589 A CN112071589 A CN 112071589A
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- reactor
- sleeve
- joint
- leading
- joints
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Installation Of Bus-Bars (AREA)
Abstract
The invention discloses a method for increasing a conductive contact surface of a reactor joint, which comprises the following steps: the reactor coil is connected with a sleeve copper conductor of the reactor through a soft copper bar and a hard copper bar which are led out and connected in parallel and in close contact; leading-out wire connectors of all phases of a sleeve on the primary side of the reactor are respectively connected with external cable connectors through copper bars; and leading-out wire joints of all phases of the sleeve on the secondary side of the reactor are respectively connected with external cable joints through copper bars. The method for increasing the conductive contact surface of the reactor joint enables the reactor coil to be connected with the sleeve copper conductor of the reactor through the soft copper bar and the hard copper bar which are in close contact connection side by side, enables the leading-out wire joints of the sleeves on the primary side and the secondary side of the reactor to be connected with the cable joint through the copper bars respectively, and can increase the contact area of the conductor joint, thereby reducing the contact resistance and the current heating, ensuring the temperature of each joint of the reactor in the normal range during the operation, and ensuring the safe operation of the reactor.
Description
Technical Field
The invention relates to the technical field of reactors, in particular to a method for increasing a conductive contact surface of a reactor joint.
Background
In the filter loop, the filter reactor and the filter capacitor are connected in series and tuned to a certain resonant frequency so as to be used for absorbing harmonic current with corresponding frequency in a power grid, effectively filtering higher harmonic current in the power grid, reducing voltage fluctuation, improving the voltage quality of the power grid and playing a great role in safe operation of a power grid system.
In the existing connection structure of the reactor of the filter loop, a coil of the reactor is connected with a sleeve copper conductor of the reactor by leading out a soft copper bar, the soft copper bar is connected with a sleeve copper conductor of the reactor by bolts and nuts, each leading-out wire joint of the sleeve on the primary side of the reactor is directly connected with an external cable joint, each leading-out wire joint of the sleeve on the secondary side of the reactor is directly connected with the external cable joint, the actual contact area of each joint of the reactor and the cable joint is small, the corresponding contact resistance is large, so that each joint of the reactor has the problem of high temperature during operation, and the insulating layer of equipment and a cable is aged or damaged due to overhigh temperature, thereby seriously affecting the safe operation of the reactor.
Therefore, it is an urgent technical problem to be solved by those skilled in the art to develop a method for increasing the conductive contact surface of the reactor joint to reduce the contact resistance and heat generation, and to solve the problem that each joint of the reactor has a high temperature during operation.
Disclosure of Invention
In order to solve the technical problems in the prior art, the invention provides a method for increasing the conductive contact surface of a reactor joint, which can effectively increase the conductive contact area of the reactor joint, reduce the contact resistance and reduce the heat generation.
To this end, the invention discloses a method for increasing the conductive contact surface of a reactor joint, which comprises the following steps:
the reactor coil is connected with a sleeve copper conductor of the reactor through a soft copper bar and a hard copper bar which are led out and connected in parallel and in close contact;
leading-out wire connectors of all phases of a sleeve on the primary side of the reactor are respectively connected with external cable connectors through copper bars;
and leading-out wire joints of all phases of the sleeve on the secondary side of the reactor are respectively connected with external cable joints through copper bars.
In some optional embodiments, one soft copper bar and one hard copper bar led out from the reactor coil are connected with a sleeve copper conductor of the reactor through bolt and nuts, and each bolt is sleeved with two nuts.
In some alternative embodiments, the leading-out line connectors of the primary side of the reactor are respectively connected with the external cable connectors through the hard copper bars.
In some alternative embodiments, the leading-out wire joints of the secondary side of the reactor and the phase of the sleeve are respectively connected with external cable joints through hard copper bars.
In some alternative embodiments, the leading-out line joints of the primary side of the reactor on each phase of the sleeve are respectively connected with the external cable joints through L-shaped hard copper bars with the width of 100 mm.
In some alternative embodiments, the leading-out line joints of the secondary side of the reactor on each phase of the sleeve are respectively connected with external cable joints through L-shaped hard copper bars with the width of 100 mm.
The technical scheme of the invention has the following main advantages:
the method for increasing the conductive contact surface of the reactor joint enables the reactor coil to be connected with the sleeve copper conductor of the reactor through the soft copper bar and the hard copper bar which are in close contact connection side by side, enables the leading-out wire joints of the sleeve on the primary side of the reactor and the leading-out wires of the sleeve on the secondary side of the reactor to be connected with the external cable joint through the copper bars respectively, and can increase the contact area of the conductor joint, thereby reducing the contact resistance and the current heating, ensuring that the temperature of each joint of the reactor in the operation is in a normal range, avoiding the insulation layer of equipment and cables from aging or damaging due to overhigh temperature, and ensuring the safe operation of the reactor.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a flowchart of a method for increasing a conductive contact surface of a reactor contact according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
The technical scheme provided by the embodiment of the invention is described in detail below with reference to the accompanying drawings.
In the existing connection structure of the reactor of the filter loop, a coil of the reactor is connected with a sleeve copper conductor of the reactor by leading out a soft copper bar, the soft copper bar is connected with a sleeve copper conductor of the reactor by bolts and nuts, each leading-out wire joint of the sleeve on the primary side of the reactor is directly connected with an external cable joint, each leading-out wire joint of the sleeve on the secondary side of the reactor is directly connected with the external cable joint, the actual contact area of each joint of the reactor and the cable joint is small, the corresponding contact resistance is large, so that each joint of the reactor has the problem of high temperature during operation, and the insulating layer of equipment and a cable is aged or damaged due to overhigh temperature, thereby seriously affecting the safe operation of the reactor.
To solve the above problems in the prior art, as shown in fig. 1, an embodiment of the present invention provides a method for increasing a conductive contact surface of a reactor terminal, the method including:
the reactor coil is connected with a sleeve copper conductor of the reactor through a soft copper bar and a hard copper bar which are led out and connected in parallel and in close contact;
leading-out wire connectors of all phases of a sleeve on the primary side of the reactor are respectively connected with external cable connectors through copper bars;
and leading-out wire joints of all phases of the sleeve on the secondary side of the reactor are respectively connected with external cable joints through copper bars.
So set up, make the reactor coil be connected with the sleeve copper conductor of reactor through a soft copper bar and a hard copper bar of side by side in close contact with connection, make each leading-out line of sleeve pipe of reactor primary side connect with each leading-out line of sleeve pipe of reactor secondary side respectively through copper bar and external cable joint connection, can increase the area of contact of conductor joint, thereby reduce contact resistance and reduce the electric current and generate heat, the temperature of guaranteeing each joint of reactor when the operation all is in normal range, avoid leading to the insulating layer of equipment and cable ageing or damaging because of the high temperature, ensure the safe operation of reactor.
In one embodiment of the invention, the structures and the sizes of the soft copper bar and the hard copper bar led out from the reactor coil are matched with each other.
Optionally, in an embodiment of the present invention, one soft copper bar and one hard copper bar led out from the reactor coil are connected to the sleeve copper conductor of the reactor through bolts and nuts, and two nuts are sleeved on each bolt.
So set up, through bolt and nut with soft copper bar and hard copper bar and sleeve copper conductor fixed connection, and two nuts of suit on each connecting bolt, can enough increase the joint strength of soft copper bar and hard copper bar and sleeve copper conductor, make the copper bar face in close contact with cooperation of soft copper bar and hard copper bar, avoid appearing connecting not hard up problem because of the vibration simultaneously, can make things convenient for the dismouting of soft copper bar and hard copper bar again.
Further, in an embodiment of the present invention, when the soft copper bar and the hard copper bar are mounted, the flatness of the soft copper bar is adjusted in advance, so that the flatness of the soft copper bar and the flatness of the hard copper bar are matched with each other, and the copper bar surfaces of the soft copper bar and the hard copper bar can be fully contacted and attached.
Optionally, in an embodiment of the present invention, each phase of outgoing line connectors of the sleeve on the primary side of the reactor is connected to an external cable connector through a hard copper bar.
According to the arrangement, the sleeve can be conveniently disassembled and assembled from the leading-out line connector and the cable connector, and meanwhile, the connection strength of the sleeve leading-out line connector and the cable connector is guaranteed.
Further, the hard copper bars can be fixedly connected with the leading-out wire joints and the external cable joints of the primary side of the reactor through bolt and nut connection modes.
Optionally, in an embodiment of the present invention, each phase of outgoing line connector of the bushing on the secondary side of the reactor is connected to an external cable connector through a hard copper bar.
According to the arrangement, the sleeve can be conveniently disassembled and assembled from the leading-out line connector and the cable connector, and meanwhile, the connection strength of the sleeve leading-out line connector and the cable connector is guaranteed.
Further, the hard copper bars can be fixedly connected with the leading-out wire joints and the external cable joints of all phases of the sleeve on the secondary side of the reactor respectively in a bolt and nut connection mode.
Optionally, each phase of leading-out line connector of the sleeve on the primary side of the reactor is connected with an external cable connector through an L-shaped hard copper bar with the width of 100 mm.
Therefore, the L-shaped hard copper busbar with the width of 100mm is connected with each phase leading-out wire joint of the sleeve on the primary side of the reactor and the external cable joint, so that the contact area between the conductor joints can be effectively increased, the contact resistance is reduced, the current heating is reduced, the hard copper busbar can be conveniently disassembled and assembled, the connection strength among each phase leading-out wire joint of the sleeve on the primary side of the reactor, the hard copper busbar and the cable joint is ensured, the problem of looseness caused by vibration during the operation of equipment is avoided, and the safe and stable operation of the electrical equipment is ensured.
Optionally, each phase of leading-out line connector of the sleeve on the secondary side of the reactor is connected with an external cable connector through an L-shaped hard copper bar with the width of 100 mm.
Therefore, the L-shaped hard copper busbar with the width of 100mm is connected with each phase lead-out wire joint of the sleeve on the secondary side of the reactor and the external cable joint, so that the contact area between the conductor joints can be effectively increased, the contact resistance is reduced, the current is reduced, the hard copper busbar can be conveniently disassembled and assembled, the connection strength between each phase lead-out wire joint of the sleeve on the secondary side of the reactor, the hard copper busbar and the cable joint is ensured, the problem of looseness caused by vibration during the operation of equipment is avoided, and the safe and stable operation of electrical equipment is ensured.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. In addition, "front", "rear", "left", "right", "upper" and "lower" in this document are referred to the placement states shown in the drawings.
Finally, it should be noted that: the above examples are only for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (6)
1. A method of increasing the conductive contact surface of a reactor terminal, the method comprising:
the reactor coil is connected with a sleeve copper conductor of the reactor through a soft copper bar and a hard copper bar which are led out and connected in parallel and in close contact;
leading-out wire connectors of all phases of a sleeve on the primary side of the reactor are respectively connected with external cable connectors through copper bars;
and leading-out wire joints of all phases of the sleeve on the secondary side of the reactor are respectively connected with external cable joints through copper bars.
2. The method for increasing the conductive contact surface of the reactor joint according to claim 1, wherein a soft copper bar and a hard copper bar led out from the reactor coil are connected with a sleeve copper conductor of the reactor through bolts and nuts, and two nuts are sleeved on each bolt.
3. The method for increasing the conductive contact surface of the reactor joint as recited in claim 1, wherein the leading line joints of the primary side of the reactor on each phase of the sleeve are connected with external cable joints through hardened copper bars, respectively.
4. The method for increasing the conductive contact surface of the reactor joint as recited in claim 1, wherein the leading-out wire joints of the secondary side of the reactor on each phase of the bushing are respectively connected with external cable joints through hard copper bars.
5. The method for increasing the conductive contact surface of the reactor joint as recited in claim 1, wherein the leading line joints of the primary side of the reactor on each phase of the sleeve are connected with external cable joints through L-shaped hard copper bars with the width of 100 mm.
6. The method for increasing the conductive contact surface of the reactor joint as recited in claim 1, wherein the leading-out line joints of the secondary side of the reactor on each phase of the bushing are respectively connected with external cable joints through L-shaped hard copper bars with the width of 100 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010825191.0A CN112071589A (en) | 2020-08-17 | 2020-08-17 | Method for enlarging conductive contact surface of reactor joint |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010825191.0A CN112071589A (en) | 2020-08-17 | 2020-08-17 | Method for enlarging conductive contact surface of reactor joint |
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| CN112071589A true CN112071589A (en) | 2020-12-11 |
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| CN202010825191.0A Pending CN112071589A (en) | 2020-08-17 | 2020-08-17 | Method for enlarging conductive contact surface of reactor joint |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202189976U (en) * | 2011-03-15 | 2012-04-11 | 佛山电力设计院有限公司 | Novel wire inlet device of reactor |
| CN104157449A (en) * | 2014-08-26 | 2014-11-19 | 镇江天力变压器有限公司 | Assembling structure of low-voltage leads of oil-immersed transformer |
| CN105070476A (en) * | 2015-08-21 | 2015-11-18 | 南京南瑞继保电气有限公司 | Anode saturation reactor of direct-current converter valve |
| CN105896321A (en) * | 2016-06-29 | 2016-08-24 | 广东光达电气有限公司 | Smart filtering compensation module structure |
| CN105915077A (en) * | 2016-06-13 | 2016-08-31 | 天津瑞能电气有限公司 | Wind power generation frequency converter external cable copper bar connection structure |
| CN206353473U (en) * | 2017-01-12 | 2017-07-25 | 国网江西省电力公司鹰潭供电分公司 | A kind of distribution transforming guard box suitable for step down side |
| CN207425524U (en) * | 2017-12-07 | 2018-05-29 | 云南变压器电气股份有限公司 | Transformer split-phase type copper bar leading structure |
| CN110890201A (en) * | 2018-09-10 | 2020-03-17 | 特变电工沈阳变压器集团有限公司 | Three-phase shunt reactor lead wire connection structure |
-
2020
- 2020-08-17 CN CN202010825191.0A patent/CN112071589A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202189976U (en) * | 2011-03-15 | 2012-04-11 | 佛山电力设计院有限公司 | Novel wire inlet device of reactor |
| CN104157449A (en) * | 2014-08-26 | 2014-11-19 | 镇江天力变压器有限公司 | Assembling structure of low-voltage leads of oil-immersed transformer |
| CN105070476A (en) * | 2015-08-21 | 2015-11-18 | 南京南瑞继保电气有限公司 | Anode saturation reactor of direct-current converter valve |
| CN105915077A (en) * | 2016-06-13 | 2016-08-31 | 天津瑞能电气有限公司 | Wind power generation frequency converter external cable copper bar connection structure |
| CN105896321A (en) * | 2016-06-29 | 2016-08-24 | 广东光达电气有限公司 | Smart filtering compensation module structure |
| CN206353473U (en) * | 2017-01-12 | 2017-07-25 | 国网江西省电力公司鹰潭供电分公司 | A kind of distribution transforming guard box suitable for step down side |
| CN207425524U (en) * | 2017-12-07 | 2018-05-29 | 云南变压器电气股份有限公司 | Transformer split-phase type copper bar leading structure |
| CN110890201A (en) * | 2018-09-10 | 2020-03-17 | 特变电工沈阳变压器集团有限公司 | Three-phase shunt reactor lead wire connection structure |
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